diff --git a/crates/moon/src/cli.rs b/crates/moon/src/cli.rs
index 547e48904..35185dfd4 100644
--- a/crates/moon/src/cli.rs
+++ b/crates/moon/src/cli.rs
@@ -152,7 +152,7 @@ pub struct BuildFlags {
     #[clap(long, long = "nostd")]
     no_std: bool,
 
-    /// Emit debug information
+    /// Compile in debug mode
     #[clap(long, short = 'g')]
     pub debug: bool,
 
@@ -160,11 +160,14 @@ pub struct BuildFlags {
     #[clap(long, conflicts_with = "debug")]
     pub release: bool,
 
-    /// Enable stripping debug information
+    /// Do not emit debug information
     #[clap(long, conflicts_with = "no_strip")]
     pub strip: bool,
 
-    /// Disable stripping debug information
+    /// Emit debug information (no effect)
+    ///
+    /// This flag currently has no effect, as debug information is emitted by
+    /// default unless `--strip` is specified.
     #[clap(long, conflicts_with = "strip")]
     pub no_strip: bool,
 
@@ -265,12 +268,50 @@ impl BuildFlags {
     pub fn strip(&self) -> bool {
         if self.strip {
             true
-        } else if self.no_strip {
-            false
         } else {
-            !self.debug
+            // `--no-strip` has no effect now
+            false
         }
     }
+
+    pub fn keep_debug_info(&self) -> bool {
+        !self.strip()
+    }
+
+    /// Legacy defaulting rule for compilation mode.
+    ///
+    /// - When `default_release` is false (most commands: build/test/check/info), we default to
+    ///   debug mode if the user did not specify `--debug` or `--release`. In the legacy pipeline
+    ///   this maps to "no optimization" (-O0) and keeps debug symbols ON unless `--strip` is set.
+    /// - When `default_release` is true (bundle/bench), we default to release if neither flag
+    ///   was specified. In release mode, optimization is enabled; debug symbols remain ON unless
+    ///   `--strip` is set.
+    ///
+    /// Notes (legacy path):
+    /// - Debug/Release selection here only determines the high-level mode. The actual C/C++ flags
+    ///   (-O0/-Og/-O2 etc.) are derived downstream in the build generator. Debug mode results in
+    ///   no optimization in legacy, while release selects optimized builds.
+    pub fn default_to_release(&mut self, default_release: bool) {
+        if !self.debug && !self.release {
+            if default_release {
+                self.release = true;
+            } else {
+                self.debug = true;
+            }
+        }
+    }
+
+    pub fn default_debug() -> Self {
+        let mut flags = Self::default();
+        flags.default_to_release(false);
+        flags
+    }
+
+    pub fn default_release() -> Self {
+        let mut flags = Self::default();
+        flags.default_to_release(true);
+        flags
+    }
 }
 
 pub fn get_compiler_flags(src_dir: &Path, build_flags: &BuildFlags) -> anyhow::Result<MooncOpt> {
@@ -304,13 +345,21 @@ pub fn get_compiler_flags(src_dir: &Path, build_flags: &BuildFlags) -> anyhow::R
         _ => output_format,
     };
 
+    // Legacy stripping & debug mapping:
+    // - `strip` disables emitting debug info and source maps; by default, we do NOT strip.
+    // - `keep_debug` mirrors the default behavior: debug symbols ON unless the user passed `--strip`.
+    // - `debug_flag` indicates high-level debug mode (selected by `default_to_release(false)` in most commands),
+    //   which flows down to no optimization (-O0) in the legacy compiler command generation.
+    // - `source_map` only applies to backends that support it (Js/WasmGC) and is tied to `keep_debug`.
+    let strip_flag = build_flags.strip();
+    let keep_debug = build_flags.keep_debug_info();
     let debug_flag = build_flags.debug;
     let enable_coverage = build_flags.enable_coverage;
-    let source_map = debug_flag && target_backend.supports_source_map();
+    let source_map = keep_debug && target_backend.supports_source_map();
 
     let build_opt = BuildPackageFlags {
         debug_flag,
-        strip_flag: build_flags.strip(),
+        strip_flag,
         source_map,
         enable_coverage,
         deny_warn: false,
@@ -320,13 +369,15 @@ pub fn get_compiler_flags(src_dir: &Path, build_flags: &BuildFlags) -> anyhow::R
         enable_value_tracing: build_flags.enable_value_tracing,
     };
 
+    // Link step mirrors debug info flags so symbol visibility is consistent across compile/link.
     let link_opt = LinkCoreFlags {
-        debug_flag,
+        debug_flag: keep_debug,
         source_map,
         output_format,
         target_backend,
     };
 
+    // stdlib handling and rendering flags; unrelated to debug/strip logic.
     let nostd = !build_flags.std() || moon_mod.name == MOONBITLANG_CORE;
     let render =
         !build_flags.no_render || std::env::var("MOON_NO_RENDER").unwrap_or_default() == "1";
diff --git a/crates/moon/src/cli/bench.rs b/crates/moon/src/cli/bench.rs
index 716c0b427..3523c5063 100644
--- a/crates/moon/src/cli/bench.rs
+++ b/crates/moon/src/cli/bench.rs
@@ -55,6 +55,10 @@ pub struct BenchSubcommand {
 
 #[instrument(skip_all)]
 pub fn run_bench(cli: UniversalFlags, cmd: BenchSubcommand) -> anyhow::Result<i32> {
+    let mut cmd = cmd;
+    // LEGACY default: bench uses release mode (optimized). Debug symbols remain ON unless `--strip`.
+    cmd.build_flags.default_to_release(true);
+
     let PackageDirs {
         source_dir,
         target_dir,
diff --git a/crates/moon/src/cli/build.rs b/crates/moon/src/cli/build.rs
index 3f53d038b..9a9d3dc07 100644
--- a/crates/moon/src/cli/build.rs
+++ b/crates/moon/src/cli/build.rs
@@ -108,11 +108,15 @@ fn run_build_internal(
     source_dir: &Path,
     target_dir: &Path,
 ) -> anyhow::Result<i32> {
+    let mut cmd = cmd.clone();
+    // LEGACY default: compile in debug mode (-O0). Debug symbols are enabled by default and only disabled via `--strip`.
+    cmd.build_flags.default_to_release(false);
+
     let f = || {
         if cli.unstable_feature.rupes_recta {
-            run_build_rr(cli, cmd, source_dir, target_dir)
+            run_build_rr(cli, &cmd, source_dir, target_dir)
         } else {
-            run_build_legacy(cli, cmd, source_dir, target_dir)
+            run_build_legacy(cli, &cmd, source_dir, target_dir)
         }
     };
 
@@ -135,7 +139,7 @@ fn run_build_rr(
         cli,
         &cmd.build_flags,
         target_dir,
-        OptLevel::Release,
+        OptLevel::Debug,
         RunMode::Build,
     );
     let (_build_meta, build_graph) = rr_build::plan_build(
@@ -167,6 +171,12 @@ fn run_build_rr(
     }
 }
 
+//// Legacy compilation mode & stripping (build):
+//// - Mode selection: build defaults to debug via `BuildFlags::default_to_release(false)`.
+////   In the legacy pipeline this maps to no optimization (-O0).
+//// - Debug info: emitted by default; disabled only when `--strip` is set.
+//// - Source maps: only emitted for backends that support them (Js/WasmGC) when not stripped.
+//// - Link step mirrors debug info flags to keep symbol visibility consistent across compile/link.
 #[instrument(skip_all)]
 fn run_build_legacy(
     cli: &UniversalFlags,
@@ -184,6 +194,9 @@ fn run_build_legacy(
 
     let raw_target_dir = target_dir;
     let run_mode = RunMode::Build;
+    // Legacy path: `get_compiler_flags` maps BuildFlags into MooncOpt.
+    // With `default_to_release(false)`, we default into debug mode which the legacy pipeline
+    // translates to no optimization (-O0). Debug symbols remain ON unless `--strip` is provided.
     let mut moonc_opt = super::get_compiler_flags(source_dir, &cmd.build_flags)?;
     moonc_opt.build_opt.deny_warn = cmd.build_flags.deny_warn;
     let target_dir = mk_arch_mode_dir(source_dir, target_dir, &moonc_opt, run_mode)?;
diff --git a/crates/moon/src/cli/bundle.rs b/crates/moon/src/cli/bundle.rs
index fe740be00..db6e8e1ed 100644
--- a/crates/moon/src/cli/bundle.rs
+++ b/crates/moon/src/cli/bundle.rs
@@ -54,6 +54,10 @@ pub struct BundleSubcommand {
 
 #[instrument(skip_all)]
 pub fn run_bundle(cli: UniversalFlags, cmd: BundleSubcommand) -> anyhow::Result<i32> {
+    let mut cmd = cmd;
+    // LEGACY default: bundle uses release mode (optimized). Debug symbols remain ON unless `--strip`.
+    cmd.build_flags.default_to_release(true);
+
     let PackageDirs {
         source_dir,
         target_dir,
@@ -157,6 +161,11 @@ pub fn run_bundle_internal_rr(
     }
 }
 
+//// Legacy compilation mode & stripping (bundle):
+//// - Mode selection: bundle defaults to release via `BuildFlags::default_to_release(true)`,
+////   selecting optimized builds in legacy.
+//// - Debug info: ON by default even in release; disable only with `--strip`.
+//// - Source maps: emitted for Js/WasmGC when not stripped.
 #[instrument(level = Level::DEBUG, skip_all)]
 fn run_bundle_internal_legacy(
     cli: &UniversalFlags,
@@ -173,6 +182,8 @@ fn run_bundle_internal_legacy(
     )?;
 
     let run_mode = RunMode::Bundle;
+    // Legacy path: bundle defaults to release (optimized). Debug symbols remain ON unless `--strip`.
+    // Source maps apply to supported backends when not stripped.
     let moonc_opt = super::get_compiler_flags(source_dir, &cmd.build_flags)?;
     let sort_input = cmd.build_flags.sort_input;
 
diff --git a/crates/moon/src/cli/check.rs b/crates/moon/src/cli/check.rs
index b6565675e..16d64e612 100644
--- a/crates/moon/src/cli/check.rs
+++ b/crates/moon/src/cli/check.rs
@@ -116,10 +116,14 @@ fn run_check_internal(
     source_dir: &Path,
     target_dir: &Path,
 ) -> anyhow::Result<i32> {
+    let mut cmd = cmd.clone();
+    // LEGACY default: compile in debug mode (-O0). Debug symbols are enabled by default and only disabled via `--strip`.
+    cmd.build_flags.default_to_release(false);
+
     if cmd.single_file.is_some() {
-        run_check_for_single_file(cli, cmd)
+        run_check_for_single_file(cli, &cmd)
     } else {
-        run_check_normal_internal(cli, cmd, source_dir, target_dir)
+        run_check_normal_internal(cli, &cmd, source_dir, target_dir)
     }
 }
 
@@ -145,11 +149,13 @@ fn run_check_for_single_file(cli: &UniversalFlags, cmd: &CheckSubcommand) -> any
             .unwrap_or(TargetBackend::WasmGC)
     };
 
-    let release_flag = !cmd.build_flags.debug;
+    let release_build = cmd.build_flags.release;
+    let strip_flag = cmd.build_flags.strip();
+    let keep_debug = !strip_flag;
 
     let target_dir = raw_target_dir
         .join(target_backend.to_dir_name())
-        .join(if release_flag { "release" } else { "debug" })
+        .join(if release_build { "release" } else { "debug" })
         .join(RunMode::Check.to_dir_name());
 
     let moonbuild_opt = MoonbuildOpt {
@@ -180,9 +186,9 @@ fn run_check_for_single_file(cli: &UniversalFlags, cmd: &CheckSubcommand) -> any
     };
     let moonc_opt = MooncOpt {
         build_opt: moonutil::common::BuildPackageFlags {
-            debug_flag: !release_flag,
-            strip_flag: false,
-            source_map: false,
+            debug_flag: !release_build,
+            strip_flag,
+            source_map: keep_debug,
             enable_coverage: false,
             deny_warn: false,
             target_backend,
@@ -191,8 +197,8 @@ fn run_check_for_single_file(cli: &UniversalFlags, cmd: &CheckSubcommand) -> any
             enable_value_tracing: cmd.build_flags.enable_value_tracing,
         },
         link_opt: moonutil::common::LinkCoreFlags {
-            debug_flag: !release_flag,
-            source_map: !release_flag,
+            debug_flag: keep_debug,
+            source_map: keep_debug,
             output_format: match target_backend {
                 TargetBackend::Js => OutputFormat::Js,
                 TargetBackend::Native => OutputFormat::Native,
@@ -258,7 +264,7 @@ fn run_check_normal_internal_rr(
         cli,
         &cmd.build_flags,
         target_dir,
-        moonutil::cond_expr::OptLevel::Release,
+        moonutil::cond_expr::OptLevel::Debug,
         RunMode::Check,
     );
     preconfig.moonc_output_json |= cmd.output_json;
@@ -304,6 +310,12 @@ fn run_check_normal_internal_rr(
     }
 }
 
+//// Legacy compilation mode & stripping (check):
+//// - Mode selection: check defaults to debug via `BuildFlags::default_to_release(false)`,
+////   mapping to no optimization (-O0) in legacy.
+//// - Debug info: ON by default; turned OFF only with `--strip`.
+//// - Source maps: only for Js/WasmGC when not stripped.
+//// - Link flags mirror compile-time debug info to keep symbol visibility consistent.
 #[instrument(skip_all)]
 fn run_check_normal_internal_legacy(
     cli: &UniversalFlags,
@@ -321,6 +333,8 @@ fn run_check_normal_internal_legacy(
 
     let raw_target_dir = target_dir;
     let run_mode = RunMode::Check;
+    // Legacy path: `get_compiler_flags` enforces default debug (-O0) unless the user specified release.
+    // Debug symbols remain ON unless `--strip`; source maps only for Js/WasmGC when not stripped.
     let mut moonc_opt = get_compiler_flags(source_dir, &cmd.build_flags)?;
     moonc_opt.build_opt.deny_warn = cmd.build_flags.deny_warn;
     let target_dir = mk_arch_mode_dir(source_dir, target_dir, &moonc_opt, run_mode)?;
diff --git a/crates/moon/src/cli/doc.rs b/crates/moon/src/cli/doc.rs
index 82f1f3d0d..356fad8d3 100644
--- a/crates/moon/src/cli/doc.rs
+++ b/crates/moon/src/cli/doc.rs
@@ -69,13 +69,14 @@ pub fn run_doc_rr(cli: UniversalFlags, cmd: DocSubcommand) -> anyhow::Result<i32
     let source_dir = dir.source_dir;
     let target_dir = dir.target_dir;
 
+    let flags = BuildFlags::default_debug();
     // FIXME: This is copied from `moon check`'s code
     let mut preconfig = preconfig_compile(
         &cmd.auto_sync_flags,
         &cli,
-        &BuildFlags::default(),
+        &flags,
         &target_dir,
-        moonutil::cond_expr::OptLevel::Release,
+        moonutil::cond_expr::OptLevel::Debug,
         RunMode::Check,
     );
     preconfig.docs_serve = cmd.serve;
@@ -105,7 +106,7 @@ pub fn run_doc_rr(cli: UniversalFlags, cmd: DocSubcommand) -> anyhow::Result<i32
     rr_build::generate_metadata(&source_dir, &target_dir, &_build_meta)?;
 
     // Execute the build
-    let cfg = BuildConfig::from_flags(&BuildFlags::default(), &cli.unstable_feature);
+    let cfg = BuildConfig::from_flags(&flags, &cli.unstable_feature);
     let result = rr_build::execute_build(&cfg, build_graph, &target_dir)?;
     result.print_info(cli.quiet, "checking")?;
 
diff --git a/crates/moon/src/cli/info.rs b/crates/moon/src/cli/info.rs
index b41584d28..b9242dc59 100644
--- a/crates/moon/src/cli/info.rs
+++ b/crates/moon/src/cli/info.rs
@@ -93,12 +93,13 @@ pub fn run_info_rr(cli: UniversalFlags, cmd: InfoSubcommand) -> anyhow::Result<i
         target_dir,
     } = cli.source_tgt_dir.try_into_package_dirs()?;
 
+    let flags = BuildFlags::default_debug();
     let mut preconfig = rr_build::preconfig_compile(
         &cmd.auto_sync_flags,
         &cli,
-        &BuildFlags::default(),
+        &flags,
         &target_dir,
-        OptLevel::Release,
+        OptLevel::Debug,
         RunMode::Build,
     );
     preconfig.info_no_alias = cmd.no_alias;
@@ -145,6 +146,10 @@ fn calc_user_intent(
     Ok(res.into())
 }
 
+//// Legacy compilation mode & stripping (info):
+//// - `moon info` wraps check semantics but historically bypassed `BuildFlags`.
+////   It now uses `default_debug` + `get_compiler_flags`, so legacy behavior matches build/check/test:
+////   debug mode by default (-O0), debug symbols ON unless `--strip`, source maps for Js/WasmGC.
 pub fn run_info_legacy(cli: UniversalFlags, cmd: InfoSubcommand) -> anyhow::Result<i32> {
     let PackageDirs {
         source_dir,
@@ -259,9 +264,11 @@ pub fn run_info_internal(
         )
     })?;
     let module_name = &mod_desc.name;
-    let mut moonc_opt = MooncOpt::default();
-    moonc_opt.link_opt.target_backend = cmd.target_backend.unwrap_or_default();
-    moonc_opt.build_opt.target_backend = cmd.target_backend.unwrap_or_default();
+    /// Legacy behavior: run `moon info` under debug mode (-O0) to match build/check/test defaults.
+    /// Debug symbols are enabled by default and only disabled via `--strip` (passed via BuildFlags).
+    let mut flags = crate::cli::BuildFlags::default_debug();
+    flags.target_backend = cmd.target_backend;
+    let mut moonc_opt = crate::cli::get_compiler_flags(source_dir, &flags)?;
 
     let raw_target_dir = target_dir.to_path_buf();
     let target_dir = mk_arch_mode_dir(source_dir, target_dir, &moonc_opt, RunMode::Check)?;
diff --git a/crates/moon/src/cli/run.rs b/crates/moon/src/cli/run.rs
index 193709909..807374c8c 100644
--- a/crates/moon/src/cli/run.rs
+++ b/crates/moon/src/cli/run.rs
@@ -34,7 +34,7 @@ use moonutil::common::TargetBackend;
 use moonutil::common::TestArtifacts;
 use moonutil::common::lower_surface_targets;
 use moonutil::common::{MoonbuildOpt, OutputFormat};
-use moonutil::cond_expr::OptLevel::Release;
+use moonutil::cond_expr::OptLevel;
 use moonutil::dirs::PackageDirs;
 use moonutil::dirs::check_moon_pkg_exist;
 use moonutil::dirs::mk_arch_mode_dir;
@@ -77,6 +77,9 @@ pub struct RunSubcommand {
 
 #[instrument(skip_all)]
 pub fn run_run(cli: &UniversalFlags, cmd: RunSubcommand) -> anyhow::Result<i32> {
+    let mut cmd = cmd;
+    cmd.build_flags.default_to_release(false);
+
     if let Some(surface_targets) = &cmd.build_flags.target {
         for st in surface_targets.iter() {
             if *st == SurfaceTarget::All {
@@ -112,7 +115,7 @@ fn run_single_mbt_file(cli: &UniversalFlags, cmd: RunSubcommand) -> anyhow::Resu
 
     let file_name = mbt_file_path.file_stem().unwrap().to_str().unwrap();
 
-    let target_backend = lower_surface_targets(&cmd.build_flags.target.unwrap_or_default())
+    let target_backend = lower_surface_targets(&cmd.build_flags.target.clone().unwrap_or_default())
         .first()
         .map_or(TargetBackend::default(), |it| *it);
     let core_bundle_path = moonutil::moon_dir::core_bundle(target_backend);
@@ -127,6 +130,9 @@ fn run_single_mbt_file(cli: &UniversalFlags, cmd: RunSubcommand) -> anyhow::Resu
     let output_wasm_or_js_path =
         output_artifact_path.join(format!("{}.{}", file_name, target_backend.to_artifact()));
 
+    let release_build = cmd.build_flags.release;
+    let keep_debug = !cmd.build_flags.strip();
+
     let pkg_name = "moon/run/single";
     let mut build_package_command = vec![
         "build-package".to_string(),
@@ -138,12 +144,16 @@ fn run_single_mbt_file(cli: &UniversalFlags, cmd: RunSubcommand) -> anyhow::Resu
         "-is-main".to_string(),
         "-pkg".to_string(),
         pkg_name.to_string(),
-        "-g".to_string(),
-        "-O0".to_string(),
-        "-source-map".to_string(),
         "-target".to_string(),
         target_backend.to_flag().to_string(),
     ];
+    if keep_debug {
+        build_package_command.push("-g".to_string());
+        build_package_command.push("-source-map".to_string());
+    }
+    if !release_build {
+        build_package_command.push("-O0".to_string());
+    }
     if cmd.build_flags.enable_value_tracing {
         build_package_command.push("-enable-value-tracing".to_string());
     }
@@ -166,12 +176,16 @@ fn run_single_mbt_file(cli: &UniversalFlags, cmd: RunSubcommand) -> anyhow::Resu
             MOONBITLANG_CORE,
             moonutil::moon_dir::core().display()
         ),
-        "-g".to_string(),
-        "-O0".to_string(),
-        "-source-map".to_string(),
         "-target".to_string(),
         target_backend.to_flag().to_string(),
     ];
+    if keep_debug {
+        link_core_command.push("-g".to_string());
+        link_core_command.push("-source-map".to_string());
+    }
+    if !release_build {
+        link_core_command.push("-O0".to_string());
+    }
 
     let cc_default = moonutil::compiler_flags::CC::default();
     if cc_default.is_msvc() && target_backend == TargetBackend::LLVM {
@@ -209,7 +223,7 @@ fn run_single_mbt_file(cli: &UniversalFlags, cmd: RunSubcommand) -> anyhow::Resu
                 .no_sys_header(true)
                 .output_ty(moonutil::compiler_flags::OutputType::Executable)
                 .opt_level(moonutil::compiler_flags::OptLevel::None)
-                .debug_info(false)
+                .debug_info(keep_debug)
                 .link_moonbitrun(false) // if use tcc, we cannot link moonbitrun
                 .define_use_shared_runtime_macro(false)
                 .build()
@@ -347,7 +361,7 @@ fn run_run_rr(cli: &UniversalFlags, cmd: RunSubcommand) -> Result<i32, anyhow::E
         cli,
         &cmd.build_flags,
         &target_dir,
-        Release,
+        OptLevel::Debug,
         RunMode::Run,
     );
     let (build_meta, build_graph) = rr_build::plan_build(
diff --git a/crates/moon/src/cli/test.rs b/crates/moon/src/cli/test.rs
index 79dbcc1e9..9a44e8939 100644
--- a/crates/moon/src/cli/test.rs
+++ b/crates/moon/src/cli/test.rs
@@ -161,6 +161,11 @@ pub fn run_test(cli: UniversalFlags, cmd: TestSubcommand) -> anyhow::Result<i32>
         has_single_file = cmd.single_file.is_some(),
         "starting moon test command"
     );
+
+    let mut cmd = cmd;
+    // LEGACY default: compile in debug mode (-O0). Debug symbols are enabled by default and only disabled via `--strip`.
+    cmd.build_flags.default_to_release(false);
+
     // Check if we're running within a project
     let dirs = match cli.source_tgt_dir.try_into_package_dirs() {
         Ok(dirs) => dirs,
@@ -264,11 +269,13 @@ fn run_test_in_single_file(cli: &UniversalFlags, cmd: &TestSubcommand) -> anyhow
             .unwrap_or(TargetBackend::WasmGC)
     };
 
-    let debug_flag = !cmd.build_flags.release;
+    let release_build = cmd.build_flags.release;
+    let strip_flag = cmd.build_flags.strip();
+    let keep_debug = !strip_flag;
 
     let target_dir = raw_target_dir
         .join(target_backend.to_dir_name())
-        .join(if debug_flag { "debug" } else { "release" })
+        .join(if release_build { "release" } else { "debug" })
         .join(RunMode::Test.to_dir_name());
     trace!(target = %target_dir.display(), backend = ?target_backend, "resolved single-file target directory");
 
@@ -304,9 +311,9 @@ fn run_test_in_single_file(cli: &UniversalFlags, cmd: &TestSubcommand) -> anyhow
     };
     let moonc_opt = MooncOpt {
         build_opt: moonutil::common::BuildPackageFlags {
-            debug_flag,
-            strip_flag: false,
-            source_map: debug_flag,
+            debug_flag: !release_build,
+            strip_flag,
+            source_map: keep_debug,
             enable_coverage: false,
             deny_warn: false,
             target_backend,
@@ -315,8 +322,8 @@ fn run_test_in_single_file(cli: &UniversalFlags, cmd: &TestSubcommand) -> anyhow
             enable_value_tracing: cmd.build_flags.enable_value_tracing,
         },
         link_opt: moonutil::common::LinkCoreFlags {
-            debug_flag,
-            source_map: debug_flag,
+            debug_flag: keep_debug,
+            source_map: keep_debug,
             output_format: match target_backend {
                 TargetBackend::Js => OutputFormat::Js,
                 TargetBackend::Native => OutputFormat::Native,
@@ -1033,6 +1040,16 @@ fn calc_user_intent(
     Ok((intents, directive).into())
 }
 
+//// Legacy compilation mode & stripping (test/bench):
+//// - Mode selection:
+////   * `moon test`: defaults to debug via `default_to_release(false)` → legacy maps to -O0.
+////   * `moon bench`: defaults to release via `default_to_release(true)` (or forced in code),
+////     selecting optimized builds; note the legacy quirk that `debug: true` may still be set to
+////     steer flag plumbing—do not "fix" this without retiring the legacy path.
+//// - Debug info: ON by default; only disabled via `--strip`.
+//// - Source maps: only for Js/WasmGC when not stripped.
+//// - Build/link: compile `debug_flag` selects legacy no-optimization; link mirrors debug info flags
+////   so symbol visibility remains consistent.
 #[instrument(skip_all)]
 pub(crate) fn run_test_or_bench_internal_legacy(
     cli: &UniversalFlags,
@@ -1058,27 +1075,10 @@ pub(crate) fn run_test_or_bench_internal_legacy(
         build_flags.release = true;
     }
 
-    // MAINTAINERS: Yes, this piece of code might result in both debug=true and
-    // release=true. This is expected behavior and is required to make the
-    // feature work, because of the current status of legacy flags setting.
-    //
-    // This piece will be thrown away very soon. If it's still here by 2026,
-    // please do a full refactor.
-    let compiler_flags = BuildFlags {
-        debug: true,
-        ..build_flags.clone()
-    };
-    let mut moonc_opt = super::get_compiler_flags(source_dir, &compiler_flags)?;
-    moonc_opt.build_opt.debug_flag = !build_flags.release;
-    moonc_opt.build_opt.enable_value_tracing = build_flags.enable_value_tracing;
-    moonc_opt.build_opt.strip_flag = if build_flags.strip {
-        true
-    } else if build_flags.no_strip {
-        false
-    } else {
-        build_flags.release
-    };
-    moonc_opt.link_opt.debug_flag = !build_flags.release;
+    // Simplified: derive compiler flags directly from build_flags.
+    // default_to_release(false/true) already chose debug (-O0) for test and release for bench.
+    // Debug symbols remain ON unless `--strip` and source maps only on supporting backends.
+    let mut moonc_opt = super::get_compiler_flags(source_dir, &build_flags)?;
 
     // TODO: remove this once LLVM backend is well supported
     if moonc_opt.build_opt.target_backend == TargetBackend::LLVM {
diff --git a/crates/moon/tests/test_cases/backend/mod.rs b/crates/moon/tests/test_cases/backend/mod.rs
index be6a2d99f..3c79ad070 100644
--- a/crates/moon/tests/test_cases/backend/mod.rs
+++ b/crates/moon/tests/test_cases/backend/mod.rs
@@ -60,18 +60,18 @@ fn test_js_format() {
             ],
         ),
         expect![[r#"
-            moonc build-package ./lib3/hello.mbt -o ./target/js/release/build/lib3/lib3.core -pkg username/hello/lib3 -pkg-sources username/hello/lib3:./lib3 -target js -workspace-path .
-            moonc link-core ./target/js/release/build/lib3/lib3.core -main username/hello/lib3 -o ./target/js/release/build/lib3/lib3.js -pkg-config-path ./lib3/moon.pkg.json -pkg-sources username/hello/lib3:./lib3 -target js -exported_functions=hello -js-format iife
-            moonc build-package ./lib2/hello.mbt -o ./target/js/release/build/lib2/lib2.core -pkg username/hello/lib2 -pkg-sources username/hello/lib2:./lib2 -target js -workspace-path .
-            moonc link-core ./target/js/release/build/lib2/lib2.core -main username/hello/lib2 -o ./target/js/release/build/lib2/lib2.js -pkg-config-path ./lib2/moon.pkg.json -pkg-sources username/hello/lib2:./lib2 -target js -exported_functions=hello -js-format cjs
-            moonc build-package ./lib1/hello.mbt -o ./target/js/release/build/lib1/lib1.core -pkg username/hello/lib1 -pkg-sources username/hello/lib1:./lib1 -target js -workspace-path .
-            moonc link-core ./target/js/release/build/lib1/lib1.core -main username/hello/lib1 -o ./target/js/release/build/lib1/lib1.js -pkg-config-path ./lib1/moon.pkg.json -pkg-sources username/hello/lib1:./lib1 -target js -exported_functions=hello -js-format esm
-            moonc build-package ./lib0/hello.mbt -o ./target/js/release/build/lib0/lib0.core -pkg username/hello/lib0 -pkg-sources username/hello/lib0:./lib0 -target js -workspace-path .
-            moonc link-core ./target/js/release/build/lib0/lib0.core -main username/hello/lib0 -o ./target/js/release/build/lib0/lib0.js -pkg-config-path ./lib0/moon.pkg.json -pkg-sources username/hello/lib0:./lib0 -target js -exported_functions=hello -js-format esm
+            moonc build-package ./lib3/hello.mbt -o ./target/js/debug/build/lib3/lib3.core -pkg username/hello/lib3 -pkg-sources username/hello/lib3:./lib3 -target js -g -O0 -source-map -workspace-path .
+            moonc link-core ./target/js/debug/build/lib3/lib3.core -main username/hello/lib3 -o ./target/js/debug/build/lib3/lib3.js -pkg-config-path ./lib3/moon.pkg.json -pkg-sources username/hello/lib3:./lib3 -target js -g -O0 -source-map -exported_functions=hello -js-format iife
+            moonc build-package ./lib2/hello.mbt -o ./target/js/debug/build/lib2/lib2.core -pkg username/hello/lib2 -pkg-sources username/hello/lib2:./lib2 -target js -g -O0 -source-map -workspace-path .
+            moonc link-core ./target/js/debug/build/lib2/lib2.core -main username/hello/lib2 -o ./target/js/debug/build/lib2/lib2.js -pkg-config-path ./lib2/moon.pkg.json -pkg-sources username/hello/lib2:./lib2 -target js -g -O0 -source-map -exported_functions=hello -js-format cjs
+            moonc build-package ./lib1/hello.mbt -o ./target/js/debug/build/lib1/lib1.core -pkg username/hello/lib1 -pkg-sources username/hello/lib1:./lib1 -target js -g -O0 -source-map -workspace-path .
+            moonc link-core ./target/js/debug/build/lib1/lib1.core -main username/hello/lib1 -o ./target/js/debug/build/lib1/lib1.js -pkg-config-path ./lib1/moon.pkg.json -pkg-sources username/hello/lib1:./lib1 -target js -g -O0 -source-map -exported_functions=hello -js-format esm
+            moonc build-package ./lib0/hello.mbt -o ./target/js/debug/build/lib0/lib0.core -pkg username/hello/lib0 -pkg-sources username/hello/lib0:./lib0 -target js -g -O0 -source-map -workspace-path .
+            moonc link-core ./target/js/debug/build/lib0/lib0.core -main username/hello/lib0 -o ./target/js/debug/build/lib0/lib0.js -pkg-config-path ./lib0/moon.pkg.json -pkg-sources username/hello/lib0:./lib0 -target js -g -O0 -source-map -exported_functions=hello -js-format esm
         "#]],
     );
     let _ = get_stdout(&dir, ["build", "--target", "js", "--nostd"]);
-    let t = dir.join("target").join("js").join("release").join("build");
+    let t = dir.join("target").join("js").join("debug").join("build");
     check(
         std::fs::read_to_string(t.join("lib0").join("lib0.js"))
             .unwrap()
@@ -81,6 +81,7 @@ fn test_js_format() {
               return "Hello, world!";
             }
             export { username$hello$lib0$$hello as hello }
+            //# sourceMappingURL=lib0.js.map
         "#]],
     );
     check(
@@ -92,6 +93,7 @@ fn test_js_format() {
               return "Hello, world!";
             }
             export { username$hello$lib1$$hello as hello }
+            //# sourceMappingURL=lib1.js.map
         "#]],
     );
     check(
@@ -103,6 +105,7 @@ fn test_js_format() {
               return "Hello, world!";
             }
             exports.hello = username$hello$lib2$$hello;
+            //# sourceMappingURL=lib2.js.map
         "#]],
     );
     check(
@@ -116,6 +119,7 @@ fn test_js_format() {
               }
               globalThis.hello = username$hello$lib3$$hello;
             })();
+            //# sourceMappingURL=lib3.js.map
         "#]],
     );
 }
diff --git a/crates/moon/tests/test_cases/backend_config/mod.rs b/crates/moon/tests/test_cases/backend_config/mod.rs
index 98a078633..35e993a45 100644
--- a/crates/moon/tests/test_cases/backend_config/mod.rs
+++ b/crates/moon/tests/test_cases/backend_config/mod.rs
@@ -6,7 +6,7 @@ fn test_backend_config() {
 
     let _ = get_stdout(&dir, ["build", "--output-wat"]);
     let out = std::fs::read_to_string(dir.join(format!(
-        "target/{}/release/build/lib/lib.wat",
+        "target/{}/debug/build/lib/lib.wat",
         TargetBackend::default().to_backend_ext()
     )))
     .unwrap();
@@ -17,10 +17,10 @@ fn test_backend_config() {
     check(
         get_stdout(&dir, ["build", "--dry-run", "--sort-input"]),
         expect![[r#"
-            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/release/build/lib/lib.core -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./lib -target wasm-gc -workspace-path .
-            moonc build-package ./main/main.mbt -o ./target/wasm-gc/release/build/main/main.core -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/build/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm-gc -workspace-path .
-            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/release/build/lib/lib.core ./target/wasm-gc/release/build/main/main.core -main username/hello/main -o ./target/wasm-gc/release/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc
-            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/release/build/lib/lib.core -main username/hello/lib -o ./target/wasm-gc/release/build/lib/lib.wasm -pkg-config-path ./lib/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc -exported_functions=hello:hello_wasm_gc
+            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/debug/build/lib/lib.core -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./lib -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./main/main.mbt -o ./target/wasm-gc/debug/build/main/main.core -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/build/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/debug/build/lib/lib.core ./target/wasm-gc/debug/build/main/main.core -main username/hello/main -o ./target/wasm-gc/debug/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc -g -O0 -source-map
+            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/debug/build/lib/lib.core -main username/hello/lib -o ./target/wasm-gc/debug/build/lib/lib.wasm -pkg-config-path ./lib/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc -g -O0 -source-map -exported_functions=hello:hello_wasm_gc
         "#]],
     );
 
@@ -37,10 +37,10 @@ fn test_backend_config() {
             ],
         ),
         expect![[r#"
-            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/release/build/lib/lib.core -pkg username/hello/lib -pkg-sources username/hello/lib:./lib -target wasm-gc -workspace-path .
-            moonc build-package ./main/main.mbt -o ./target/wasm-gc/release/build/main/main.core -pkg username/hello/main -is-main -i ./target/wasm-gc/release/build/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm-gc -workspace-path .
-            moonc link-core ./target/wasm-gc/release/build/lib/lib.core ./target/wasm-gc/release/build/main/main.core -main username/hello/main -o ./target/wasm-gc/release/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/main:./main -target wasm-gc
-            moonc link-core ./target/wasm-gc/release/build/lib/lib.core -main username/hello/lib -o ./target/wasm-gc/release/build/lib/lib.wasm -pkg-config-path ./lib/moon.pkg.json -pkg-sources username/hello/lib:./lib -target wasm-gc -exported_functions=hello:hello_wasm_gc
+            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/debug/build/lib/lib.core -pkg username/hello/lib -pkg-sources username/hello/lib:./lib -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./main/main.mbt -o ./target/wasm-gc/debug/build/main/main.core -pkg username/hello/main -is-main -i ./target/wasm-gc/debug/build/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core ./target/wasm-gc/debug/build/lib/lib.core ./target/wasm-gc/debug/build/main/main.core -main username/hello/main -o ./target/wasm-gc/debug/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/main:./main -target wasm-gc -g -O0 -source-map
+            moonc link-core ./target/wasm-gc/debug/build/lib/lib.core -main username/hello/lib -o ./target/wasm-gc/debug/build/lib/lib.wasm -pkg-config-path ./lib/moon.pkg.json -pkg-sources username/hello/lib:./lib -target wasm-gc -g -O0 -source-map -exported_functions=hello:hello_wasm_gc
         "#]],
     );
 
@@ -57,10 +57,10 @@ fn test_backend_config() {
             ],
         ),
         expect![[r#"
-            moonc build-package ./lib/hello.mbt -o ./target/js/release/build/lib/lib.core -pkg username/hello/lib -pkg-sources username/hello/lib:./lib -target js -workspace-path .
-            moonc build-package ./main/main.mbt -o ./target/js/release/build/main/main.core -pkg username/hello/main -is-main -i ./target/js/release/build/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target js -workspace-path .
-            moonc link-core ./target/js/release/build/lib/lib.core ./target/js/release/build/main/main.core -main username/hello/main -o ./target/js/release/build/main/main.js -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/main:./main -target js
-            moonc link-core ./target/js/release/build/lib/lib.core -main username/hello/lib -o ./target/js/release/build/lib/lib.js -pkg-config-path ./lib/moon.pkg.json -pkg-sources username/hello/lib:./lib -target js -exported_functions=hello:hello_js -js-format esm
+            moonc build-package ./lib/hello.mbt -o ./target/js/debug/build/lib/lib.core -pkg username/hello/lib -pkg-sources username/hello/lib:./lib -target js -g -O0 -source-map -workspace-path .
+            moonc build-package ./main/main.mbt -o ./target/js/debug/build/main/main.core -pkg username/hello/main -is-main -i ./target/js/debug/build/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target js -g -O0 -source-map -workspace-path .
+            moonc link-core ./target/js/debug/build/lib/lib.core ./target/js/debug/build/main/main.core -main username/hello/main -o ./target/js/debug/build/main/main.js -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/main:./main -target js -g -O0 -source-map
+            moonc link-core ./target/js/debug/build/lib/lib.core -main username/hello/lib -o ./target/js/debug/build/lib/lib.js -pkg-config-path ./lib/moon.pkg.json -pkg-sources username/hello/lib:./lib -target js -g -O0 -source-map -exported_functions=hello:hello_js -js-format esm
         "#]],
     );
 }
diff --git a/crates/moon/tests/test_cases/cond_comp.in/moon.test b/crates/moon/tests/test_cases/cond_comp.in/moon.test
index 7943994e2..d8fa33fc0 100644
--- a/crates/moon/tests/test_cases/cond_comp.in/moon.test
+++ b/crates/moon/tests/test_cases/cond_comp.in/moon.test
@@ -1,69 +1,69 @@
-  $ moon build --dry-run --sort-input --nostd
-  moonc build-package ./src/lib/all.mbt ./src/lib/all_wasm.mbt ./src/lib/not_js.mbt ./src/lib/only_wasm_gc.mbt -o ./target/wasm-gc/release/build/lib/lib.core -pkg username/hello/lib -pkg-sources username/hello/lib:./src/lib -target wasm-gc -workspace-path .
-  moonc build-package ./src/main/main.mbt -o ./target/wasm-gc/release/build/main/main.core -pkg username/hello/main -is-main -i ./target/wasm-gc/release/build/lib/lib.mi:lib -pkg-sources username/hello/main:./src/main -target wasm-gc -workspace-path .
-  moonc link-core ./target/wasm-gc/release/build/lib/lib.core ./target/wasm-gc/release/build/main/main.core -main username/hello/main -o ./target/wasm-gc/release/build/main/main.wasm -pkg-config-path ./src/main/moon.pkg.json -pkg-sources username/hello/lib:./src/lib -pkg-sources username/hello/main:./src/main -target wasm-gc
+  $ moon build --dry-run --sort-input --nostd --release
+  moonc build-package ./src/lib/all.mbt ./src/lib/all_wasm.mbt ./src/lib/not_js.mbt ./src/lib/only_wasm_gc.mbt -o ./target/wasm-gc/release/build/lib/lib.core -pkg username/hello/lib -pkg-sources username/hello/lib:./src/lib -target wasm-gc -g -source-map -workspace-path .
+  moonc build-package ./src/main/main.mbt -o ./target/wasm-gc/release/build/main/main.core -pkg username/hello/main -is-main -i ./target/wasm-gc/release/build/lib/lib.mi:lib -pkg-sources username/hello/main:./src/main -target wasm-gc -g -source-map -workspace-path .
+  moonc link-core ./target/wasm-gc/release/build/lib/lib.core ./target/wasm-gc/release/build/main/main.core -main username/hello/main -o ./target/wasm-gc/release/build/main/main.wasm -pkg-config-path ./src/main/moon.pkg.json -pkg-sources username/hello/lib:./src/lib -pkg-sources username/hello/main:./src/main -target wasm-gc -g -source-map
   
-  $ moon build --target wasm --dry-run --sort-input --nostd
-  moonc build-package ./src/lib/all.mbt ./src/lib/all_wasm.mbt ./src/lib/js_or_wasm.mbt ./src/lib/native_and_wasm.mbt ./src/lib/not_js.mbt ./src/lib/only_wasm.mbt ./src/lib/wasm_release_or_js_debug.mbt -o ./target/wasm/release/build/lib/lib.core -pkg username/hello/lib -pkg-sources username/hello/lib:./src/lib -target wasm -workspace-path .
-  moonc build-package ./src/main/main.mbt -o ./target/wasm/release/build/main/main.core -pkg username/hello/main -is-main -i ./target/wasm/release/build/lib/lib.mi:lib -pkg-sources username/hello/main:./src/main -target wasm -workspace-path .
-  moonc link-core ./target/wasm/release/build/lib/lib.core ./target/wasm/release/build/main/main.core -main username/hello/main -o ./target/wasm/release/build/main/main.wasm -pkg-config-path ./src/main/moon.pkg.json -pkg-sources username/hello/lib:./src/lib -pkg-sources username/hello/main:./src/main -target wasm
+  $ moon build --target wasm --dry-run --sort-input --nostd --release
+  moonc build-package ./src/lib/all.mbt ./src/lib/all_wasm.mbt ./src/lib/js_or_wasm.mbt ./src/lib/native_and_wasm.mbt ./src/lib/not_js.mbt ./src/lib/only_wasm.mbt ./src/lib/wasm_release_or_js_debug.mbt -o ./target/wasm/release/build/lib/lib.core -pkg username/hello/lib -pkg-sources username/hello/lib:./src/lib -target wasm -g -workspace-path .
+  moonc build-package ./src/main/main.mbt -o ./target/wasm/release/build/main/main.core -pkg username/hello/main -is-main -i ./target/wasm/release/build/lib/lib.mi:lib -pkg-sources username/hello/main:./src/main -target wasm -g -workspace-path .
+  moonc link-core ./target/wasm/release/build/lib/lib.core ./target/wasm/release/build/main/main.core -main username/hello/main -o ./target/wasm/release/build/main/main.wasm -pkg-config-path ./src/main/moon.pkg.json -pkg-sources username/hello/lib:./src/lib -pkg-sources username/hello/main:./src/main -target wasm -g
   
-  $ moon build --target wasm-gc --dry-run --sort-input --nostd
-  moonc build-package ./src/lib/all.mbt ./src/lib/all_wasm.mbt ./src/lib/not_js.mbt ./src/lib/only_wasm_gc.mbt -o ./target/wasm-gc/release/build/lib/lib.core -pkg username/hello/lib -pkg-sources username/hello/lib:./src/lib -target wasm-gc -workspace-path .
-  moonc build-package ./src/main/main.mbt -o ./target/wasm-gc/release/build/main/main.core -pkg username/hello/main -is-main -i ./target/wasm-gc/release/build/lib/lib.mi:lib -pkg-sources username/hello/main:./src/main -target wasm-gc -workspace-path .
-  moonc link-core ./target/wasm-gc/release/build/lib/lib.core ./target/wasm-gc/release/build/main/main.core -main username/hello/main -o ./target/wasm-gc/release/build/main/main.wasm -pkg-config-path ./src/main/moon.pkg.json -pkg-sources username/hello/lib:./src/lib -pkg-sources username/hello/main:./src/main -target wasm-gc
+  $ moon build --target wasm-gc --dry-run --sort-input --nostd --release
+  moonc build-package ./src/lib/all.mbt ./src/lib/all_wasm.mbt ./src/lib/not_js.mbt ./src/lib/only_wasm_gc.mbt -o ./target/wasm-gc/release/build/lib/lib.core -pkg username/hello/lib -pkg-sources username/hello/lib:./src/lib -target wasm-gc -g -source-map -workspace-path .
+  moonc build-package ./src/main/main.mbt -o ./target/wasm-gc/release/build/main/main.core -pkg username/hello/main -is-main -i ./target/wasm-gc/release/build/lib/lib.mi:lib -pkg-sources username/hello/main:./src/main -target wasm-gc -g -source-map -workspace-path .
+  moonc link-core ./target/wasm-gc/release/build/lib/lib.core ./target/wasm-gc/release/build/main/main.core -main username/hello/main -o ./target/wasm-gc/release/build/main/main.wasm -pkg-config-path ./src/main/moon.pkg.json -pkg-sources username/hello/lib:./src/lib -pkg-sources username/hello/main:./src/main -target wasm-gc -g -source-map
   
-  $ moon build --dry-run --target js --sort-input --nostd
-  moonc build-package ./src/lib/all.mbt ./src/lib/js_and_release.mbt ./src/lib/js_or_wasm.mbt ./src/lib/only_js.mbt ./src/lib/wasm_release_or_js_debug.mbt -o ./target/js/release/build/lib/lib.core -pkg username/hello/lib -pkg-sources username/hello/lib:./src/lib -target js -workspace-path .
-  moonc build-package ./src/main/main.mbt -o ./target/js/release/build/main/main.core -pkg username/hello/main -is-main -i ./target/js/release/build/lib/lib.mi:lib -pkg-sources username/hello/main:./src/main -target js -workspace-path .
-  moonc link-core ./target/js/release/build/lib/lib.core ./target/js/release/build/main/main.core -main username/hello/main -o ./target/js/release/build/main/main.js -pkg-config-path ./src/main/moon.pkg.json -pkg-sources username/hello/lib:./src/lib -pkg-sources username/hello/main:./src/main -target js
+  $ moon build --dry-run --target js --sort-input --nostd --release
+  moonc build-package ./src/lib/all.mbt ./src/lib/js_and_release.mbt ./src/lib/js_or_wasm.mbt ./src/lib/only_js.mbt ./src/lib/wasm_release_or_js_debug.mbt -o ./target/js/release/build/lib/lib.core -pkg username/hello/lib -pkg-sources username/hello/lib:./src/lib -target js -g -source-map -workspace-path .
+  moonc build-package ./src/main/main.mbt -o ./target/js/release/build/main/main.core -pkg username/hello/main -is-main -i ./target/js/release/build/lib/lib.mi:lib -pkg-sources username/hello/main:./src/main -target js -g -source-map -workspace-path .
+  moonc link-core ./target/js/release/build/lib/lib.core ./target/js/release/build/main/main.core -main username/hello/main -o ./target/js/release/build/main/main.js -pkg-config-path ./src/main/moon.pkg.json -pkg-sources username/hello/lib:./src/lib -pkg-sources username/hello/main:./src/main -target js -g -source-map
   
-  $ moon build --dry-run --target wasm --sort-input --nostd --debug
+  $ moon build --dry-run --target wasm --sort-input --nostd
   moonc build-package ./src/lib/all.mbt ./src/lib/all_wasm.mbt ./src/lib/js_or_wasm.mbt ./src/lib/native_and_wasm.mbt ./src/lib/not_js.mbt ./src/lib/only_debug.mbt ./src/lib/only_wasm.mbt ./src/lib/wasm_release_or_js_debug.mbt -o ./target/wasm/debug/build/lib/lib.core -pkg username/hello/lib -pkg-sources username/hello/lib:./src/lib -target wasm -g -O0 -workspace-path .
   moonc build-package ./src/main/main.mbt -o ./target/wasm/debug/build/main/main.core -pkg username/hello/main -is-main -i ./target/wasm/debug/build/lib/lib.mi:lib -pkg-sources username/hello/main:./src/main -target wasm -g -O0 -workspace-path .
   moonc link-core ./target/wasm/debug/build/lib/lib.core ./target/wasm/debug/build/main/main.core -main username/hello/main -o ./target/wasm/debug/build/main/main.wasm -pkg-config-path ./src/main/moon.pkg.json -pkg-sources username/hello/lib:./src/lib -pkg-sources username/hello/main:./src/main -target wasm -g -O0
   
-  $ moon build --dry-run --target wasm-gc --sort-input --nostd --debug
+  $ moon build --dry-run --target wasm-gc --sort-input --nostd
   moonc build-package ./src/lib/all.mbt ./src/lib/all_wasm.mbt ./src/lib/not_js.mbt ./src/lib/only_debug.mbt ./src/lib/only_wasm_gc.mbt -o ./target/wasm-gc/debug/build/lib/lib.core -pkg username/hello/lib -pkg-sources username/hello/lib:./src/lib -target wasm-gc -g -O0 -source-map -workspace-path .
   moonc build-package ./src/main/main.mbt -o ./target/wasm-gc/debug/build/main/main.core -pkg username/hello/main -is-main -i ./target/wasm-gc/debug/build/lib/lib.mi:lib -pkg-sources username/hello/main:./src/main -target wasm-gc -g -O0 -source-map -workspace-path .
   moonc link-core ./target/wasm-gc/debug/build/lib/lib.core ./target/wasm-gc/debug/build/main/main.core -main username/hello/main -o ./target/wasm-gc/debug/build/main/main.wasm -pkg-config-path ./src/main/moon.pkg.json -pkg-sources username/hello/lib:./src/lib -pkg-sources username/hello/main:./src/main -target wasm-gc -g -O0 -source-map
   
-  $ moon build --dry-run --target js --sort-input --nostd --debug
+  $ moon build --dry-run --target js --sort-input --nostd
   moonc build-package ./src/lib/all.mbt ./src/lib/js_or_wasm.mbt ./src/lib/only_debug.mbt ./src/lib/only_js.mbt ./src/lib/wasm_release_or_js_debug.mbt -o ./target/js/debug/build/lib/lib.core -pkg username/hello/lib -pkg-sources username/hello/lib:./src/lib -target js -g -O0 -source-map -workspace-path .
   moonc build-package ./src/main/main.mbt -o ./target/js/debug/build/main/main.core -pkg username/hello/main -is-main -i ./target/js/debug/build/lib/lib.mi:lib -pkg-sources username/hello/main:./src/main -target js -g -O0 -source-map -workspace-path .
   moonc link-core ./target/js/debug/build/lib/lib.core ./target/js/debug/build/main/main.core -main username/hello/main -o ./target/js/debug/build/main/main.js -pkg-config-path ./src/main/moon.pkg.json -pkg-sources username/hello/lib:./src/lib -pkg-sources username/hello/main:./src/main -target js -g -O0 -source-map
   
-  $ moon check --dry-run --target js --sort-input --nostd
+  $ moon check --dry-run --target js --sort-input --nostd --release
   moonc check ./src/lib/all.mbt ./src/lib/js_and_release.mbt ./src/lib/js_or_wasm.mbt ./src/lib/only_js.mbt ./src/lib/wasm_release_or_js_debug.mbt -o ./target/js/release/check/lib/lib.mi -pkg username/hello/lib -pkg-sources username/hello/lib:./src/lib -target js -workspace-path .
   moonc check ./src/main/main.mbt -o ./target/js/release/check/main/main.mi -pkg username/hello/main -is-main -i ./target/js/release/check/lib/lib.mi:lib -pkg-sources username/hello/main:./src/main -target js -workspace-path .
   moonc check -doctest-only ./src/main/main.mbt -include-doctests -o ./target/js/release/check/main/main.blackbox_test.mi -pkg username/hello/main_blackbox_test -i ./target/js/release/check/main/main.mi:main -i ./target/js/release/check/lib/lib.mi:lib -pkg-sources username/hello/main_blackbox_test:./src/main -target js -blackbox-test -workspace-path .
   moonc check ./src/lib/hello_test.mbt ./src/lib/js_only_test.mbt -doctest-only ./src/lib/all.mbt -doctest-only ./src/lib/js_and_release.mbt -doctest-only ./src/lib/js_or_wasm.mbt -doctest-only ./src/lib/only_js.mbt -doctest-only ./src/lib/wasm_release_or_js_debug.mbt -include-doctests -o ./target/js/release/check/lib/lib.blackbox_test.mi -pkg username/hello/lib_blackbox_test -i ./target/js/release/check/lib/lib.mi:lib -pkg-sources username/hello/lib_blackbox_test:./src/lib -target js -blackbox-test -workspace-path .
   
-  $ moon test --dry-run --target js --sort-input --nostd
-  moonc build-package ./src/lib/all.mbt ./src/lib/js_or_wasm.mbt ./src/lib/only_debug.mbt ./src/lib/only_js.mbt ./src/lib/wasm_release_or_js_debug.mbt -o ./target/js/debug/test/lib/lib.core -pkg username/hello/lib -pkg-sources username/hello/lib:./src/lib -target js -g -O0 -source-map -workspace-path .
-  moon generate-test-driver --output-driver ./target/js/debug/test/main/__generated_driver_for_internal_test.mbt --output-metadata ./target/js/debug/test/main/__internal_test_info.json ./src/main/main.mbt --target js --pkg-name username/hello/main --driver-kind internal
-  moonc build-package ./src/main/main.mbt ./target/js/debug/test/main/__generated_driver_for_internal_test.mbt -o ./target/js/debug/test/main/main.internal_test.core -pkg username/hello/main -is-main -i ./target/js/debug/test/lib/lib.mi:lib -pkg-sources username/hello/main:./src/main -target js -g -O0 -source-map -no-mi -test-mode -workspace-path .
-  moonc link-core ./target/js/debug/test/lib/lib.core ./target/js/debug/test/main/main.internal_test.core -main username/hello/main -o ./target/js/debug/test/main/main.internal_test.js -test-mode -pkg-config-path ./src/main/moon.pkg.json -pkg-sources username/hello/lib:./src/lib -pkg-sources username/hello/main:./src/main -exported_functions moonbit_test_driver_internal_execute,moonbit_test_driver_finish -js-format cjs -no-dts -target js -g -O0 -source-map
-  moonc build-package ./src/main/main.mbt -o ./target/js/debug/test/main/main.core -pkg username/hello/main -is-main -i ./target/js/debug/test/lib/lib.mi:lib -pkg-sources username/hello/main:./src/main -target js -g -O0 -source-map -workspace-path .
-  moon generate-test-driver --output-driver ./target/js/debug/test/main/__generated_driver_for_blackbox_test.mbt --output-metadata ./target/js/debug/test/main/__blackbox_test_info.json --doctest-only ./src/main/main.mbt --target js --pkg-name username/hello/main --driver-kind blackbox
-  moonc build-package ./target/js/debug/test/main/__generated_driver_for_blackbox_test.mbt -doctest-only ./src/main/main.mbt -o ./target/js/debug/test/main/main.blackbox_test.core -pkg username/hello/main_blackbox_test -is-main -i ./target/js/debug/test/main/main.mi:main -i ./target/js/debug/test/lib/lib.mi:lib -pkg-sources username/hello/main_blackbox_test:./src/main -target js -g -O0 -source-map -blackbox-test -include-doctests -no-mi -test-mode -workspace-path .
-  moonc link-core ./target/js/debug/test/lib/lib.core ./target/js/debug/test/main/main.core ./target/js/debug/test/main/main.blackbox_test.core -main username/hello/main_blackbox_test -o ./target/js/debug/test/main/main.blackbox_test.js -test-mode -pkg-config-path ./src/main/moon.pkg.json -pkg-sources username/hello/lib:./src/lib -pkg-sources username/hello/main:./src/main -pkg-sources username/hello/main_blackbox_test:./src/main -exported_functions moonbit_test_driver_internal_execute,moonbit_test_driver_finish -js-format cjs -no-dts -target js -g -O0 -source-map
-  moon generate-test-driver --output-driver ./target/js/debug/test/lib/__generated_driver_for_internal_test.mbt --output-metadata ./target/js/debug/test/lib/__internal_test_info.json ./src/lib/all.mbt ./src/lib/js_or_wasm.mbt ./src/lib/only_debug.mbt ./src/lib/only_js.mbt ./src/lib/wasm_release_or_js_debug.mbt --target js --pkg-name username/hello/lib --driver-kind internal
-  moonc build-package ./src/lib/all.mbt ./src/lib/js_or_wasm.mbt ./src/lib/only_debug.mbt ./src/lib/only_js.mbt ./src/lib/wasm_release_or_js_debug.mbt ./target/js/debug/test/lib/__generated_driver_for_internal_test.mbt -o ./target/js/debug/test/lib/lib.internal_test.core -pkg username/hello/lib -is-main -pkg-sources username/hello/lib:./src/lib -target js -g -O0 -source-map -no-mi -test-mode -workspace-path .
-  moonc link-core ./target/js/debug/test/lib/lib.internal_test.core -main username/hello/lib -o ./target/js/debug/test/lib/lib.internal_test.js -test-mode -pkg-config-path ./src/lib/moon.pkg.json -pkg-sources username/hello/lib:./src/lib -exported_functions moonbit_test_driver_internal_execute,moonbit_test_driver_finish -js-format cjs -no-dts -target js -g -O0 -source-map
-  moon generate-test-driver --output-driver ./target/js/debug/test/lib/__generated_driver_for_blackbox_test.mbt --output-metadata ./target/js/debug/test/lib/__blackbox_test_info.json ./src/lib/hello_test.mbt ./src/lib/js_only_test.mbt --doctest-only ./src/lib/all.mbt --doctest-only ./src/lib/js_or_wasm.mbt --doctest-only ./src/lib/only_debug.mbt --doctest-only ./src/lib/only_js.mbt --doctest-only ./src/lib/wasm_release_or_js_debug.mbt --target js --pkg-name username/hello/lib --driver-kind blackbox
-  moonc build-package ./src/lib/hello_test.mbt ./src/lib/js_only_test.mbt ./target/js/debug/test/lib/__generated_driver_for_blackbox_test.mbt -doctest-only ./src/lib/all.mbt -doctest-only ./src/lib/js_or_wasm.mbt -doctest-only ./src/lib/only_debug.mbt -doctest-only ./src/lib/only_js.mbt -doctest-only ./src/lib/wasm_release_or_js_debug.mbt -o ./target/js/debug/test/lib/lib.blackbox_test.core -pkg username/hello/lib_blackbox_test -is-main -i ./target/js/debug/test/lib/lib.mi:lib -pkg-sources username/hello/lib_blackbox_test:./src/lib -target js -g -O0 -source-map -blackbox-test -include-doctests -no-mi -test-mode -workspace-path .
-  moonc link-core ./target/js/debug/test/lib/lib.core ./target/js/debug/test/lib/lib.blackbox_test.core -main username/hello/lib_blackbox_test -o ./target/js/debug/test/lib/lib.blackbox_test.js -test-mode -pkg-config-path ./src/lib/moon.pkg.json -pkg-sources username/hello/lib:./src/lib -pkg-sources username/hello/lib_blackbox_test:./src/lib -exported_functions moonbit_test_driver_internal_execute,moonbit_test_driver_finish -js-format cjs -no-dts -target js -g -O0 -source-map
+  $ moon test --dry-run --target js --sort-input --nostd --release
+  moonc build-package ./src/lib/all.mbt ./src/lib/js_and_release.mbt ./src/lib/js_or_wasm.mbt ./src/lib/only_js.mbt ./src/lib/wasm_release_or_js_debug.mbt -o ./target/js/release/test/lib/lib.core -pkg username/hello/lib -pkg-sources username/hello/lib:./src/lib -target js -g -source-map -workspace-path .
+  moon generate-test-driver --output-driver ./target/js/release/test/main/__generated_driver_for_internal_test.mbt --output-metadata ./target/js/release/test/main/__internal_test_info.json ./src/main/main.mbt --target js --pkg-name username/hello/main --driver-kind internal
+  moonc build-package ./src/main/main.mbt ./target/js/release/test/main/__generated_driver_for_internal_test.mbt -o ./target/js/release/test/main/main.internal_test.core -pkg username/hello/main -is-main -i ./target/js/release/test/lib/lib.mi:lib -pkg-sources username/hello/main:./src/main -target js -g -source-map -no-mi -test-mode -workspace-path .
+  moonc link-core ./target/js/release/test/lib/lib.core ./target/js/release/test/main/main.internal_test.core -main username/hello/main -o ./target/js/release/test/main/main.internal_test.js -test-mode -pkg-config-path ./src/main/moon.pkg.json -pkg-sources username/hello/lib:./src/lib -pkg-sources username/hello/main:./src/main -exported_functions moonbit_test_driver_internal_execute,moonbit_test_driver_finish -js-format cjs -no-dts -target js -g -source-map
+  moonc build-package ./src/main/main.mbt -o ./target/js/release/test/main/main.core -pkg username/hello/main -is-main -i ./target/js/release/test/lib/lib.mi:lib -pkg-sources username/hello/main:./src/main -target js -g -source-map -workspace-path .
+  moon generate-test-driver --output-driver ./target/js/release/test/main/__generated_driver_for_blackbox_test.mbt --output-metadata ./target/js/release/test/main/__blackbox_test_info.json --doctest-only ./src/main/main.mbt --target js --pkg-name username/hello/main --driver-kind blackbox
+  moonc build-package ./target/js/release/test/main/__generated_driver_for_blackbox_test.mbt -doctest-only ./src/main/main.mbt -o ./target/js/release/test/main/main.blackbox_test.core -pkg username/hello/main_blackbox_test -is-main -i ./target/js/release/test/main/main.mi:main -i ./target/js/release/test/lib/lib.mi:lib -pkg-sources username/hello/main_blackbox_test:./src/main -target js -g -source-map -blackbox-test -include-doctests -no-mi -test-mode -workspace-path .
+  moonc link-core ./target/js/release/test/lib/lib.core ./target/js/release/test/main/main.core ./target/js/release/test/main/main.blackbox_test.core -main username/hello/main_blackbox_test -o ./target/js/release/test/main/main.blackbox_test.js -test-mode -pkg-config-path ./src/main/moon.pkg.json -pkg-sources username/hello/lib:./src/lib -pkg-sources username/hello/main:./src/main -pkg-sources username/hello/main_blackbox_test:./src/main -exported_functions moonbit_test_driver_internal_execute,moonbit_test_driver_finish -js-format cjs -no-dts -target js -g -source-map
+  moon generate-test-driver --output-driver ./target/js/release/test/lib/__generated_driver_for_internal_test.mbt --output-metadata ./target/js/release/test/lib/__internal_test_info.json ./src/lib/all.mbt ./src/lib/js_and_release.mbt ./src/lib/js_or_wasm.mbt ./src/lib/only_js.mbt ./src/lib/wasm_release_or_js_debug.mbt --target js --pkg-name username/hello/lib --driver-kind internal
+  moonc build-package ./src/lib/all.mbt ./src/lib/js_and_release.mbt ./src/lib/js_or_wasm.mbt ./src/lib/only_js.mbt ./src/lib/wasm_release_or_js_debug.mbt ./target/js/release/test/lib/__generated_driver_for_internal_test.mbt -o ./target/js/release/test/lib/lib.internal_test.core -pkg username/hello/lib -is-main -pkg-sources username/hello/lib:./src/lib -target js -g -source-map -no-mi -test-mode -workspace-path .
+  moonc link-core ./target/js/release/test/lib/lib.internal_test.core -main username/hello/lib -o ./target/js/release/test/lib/lib.internal_test.js -test-mode -pkg-config-path ./src/lib/moon.pkg.json -pkg-sources username/hello/lib:./src/lib -exported_functions moonbit_test_driver_internal_execute,moonbit_test_driver_finish -js-format cjs -no-dts -target js -g -source-map
+  moon generate-test-driver --output-driver ./target/js/release/test/lib/__generated_driver_for_blackbox_test.mbt --output-metadata ./target/js/release/test/lib/__blackbox_test_info.json ./src/lib/hello_test.mbt ./src/lib/js_only_test.mbt --doctest-only ./src/lib/all.mbt --doctest-only ./src/lib/js_and_release.mbt --doctest-only ./src/lib/js_or_wasm.mbt --doctest-only ./src/lib/only_js.mbt --doctest-only ./src/lib/wasm_release_or_js_debug.mbt --target js --pkg-name username/hello/lib --driver-kind blackbox
+  moonc build-package ./src/lib/hello_test.mbt ./src/lib/js_only_test.mbt ./target/js/release/test/lib/__generated_driver_for_blackbox_test.mbt -doctest-only ./src/lib/all.mbt -doctest-only ./src/lib/js_and_release.mbt -doctest-only ./src/lib/js_or_wasm.mbt -doctest-only ./src/lib/only_js.mbt -doctest-only ./src/lib/wasm_release_or_js_debug.mbt -o ./target/js/release/test/lib/lib.blackbox_test.core -pkg username/hello/lib_blackbox_test -is-main -i ./target/js/release/test/lib/lib.mi:lib -pkg-sources username/hello/lib_blackbox_test:./src/lib -target js -g -source-map -blackbox-test -include-doctests -no-mi -test-mode -workspace-path .
+  moonc link-core ./target/js/release/test/lib/lib.core ./target/js/release/test/lib/lib.blackbox_test.core -main username/hello/lib_blackbox_test -o ./target/js/release/test/lib/lib.blackbox_test.js -test-mode -pkg-config-path ./src/lib/moon.pkg.json -pkg-sources username/hello/lib:./src/lib -pkg-sources username/hello/lib_blackbox_test:./src/lib -exported_functions moonbit_test_driver_internal_execute,moonbit_test_driver_finish -js-format cjs -no-dts -target js -g -source-map
   
-  $ moon bundle --dry-run --target js --sort-input --nostd
-  moonc build-package ./src/lib/all.mbt ./src/lib/js_and_release.mbt ./src/lib/js_or_wasm.mbt ./src/lib/only_js.mbt ./src/lib/wasm_release_or_js_debug.mbt -o ./target/js/release/bundle/lib/lib.core -pkg username/hello/lib -pkg-sources username/hello/lib:./src/lib -target js
-  moonc build-package ./src/main/main.mbt -o ./target/js/release/bundle/main/main.core -pkg username/hello/main -is-main -i ./target/js/release/bundle/lib/lib.mi:lib -pkg-sources username/hello/main:./src/main -target js
+  $ moon bundle --dry-run --target js --sort-input --nostd --release
+  moonc build-package ./src/lib/all.mbt ./src/lib/js_and_release.mbt ./src/lib/js_or_wasm.mbt ./src/lib/only_js.mbt ./src/lib/wasm_release_or_js_debug.mbt -o ./target/js/release/bundle/lib/lib.core -pkg username/hello/lib -pkg-sources username/hello/lib:./src/lib -target js -g -source-map
+  moonc build-package ./src/main/main.mbt -o ./target/js/release/bundle/main/main.core -pkg username/hello/main -is-main -i ./target/js/release/bundle/lib/lib.mi:lib -pkg-sources username/hello/main:./src/main -target js -g -source-map
   moonc bundle-core ./target/js/release/bundle/lib/lib.core ./target/js/release/bundle/main/main.core -o ./target/js/release/bundle/hello.core
   
   $ moon check --sort-input
   
   Warning: [0002]
-     ╭─[ ${WORK_DIR}/src/lib/all.mbt:2:7 ]
+     ╭─[ ${WORK_DIR}/src/lib/only_debug.mbt:2:7 ]
      │
    2 │   let a = 1
      │       ┬  
@@ -241,7 +241,7 @@
         "deps": [],
         "wbtest-deps": [],
         "test-deps": [],
-        "artifact": "${WORK_DIR}/target/wasm-gc/release/check/lib/lib.mi"
+        "artifact": "${WORK_DIR}/target/wasm-gc/debug/check/lib/lib.mi"
       },
       {
         "is-main": true,
@@ -276,11 +276,11 @@
         ],
         "wbtest-deps": [],
         "test-deps": [],
-        "artifact": "${WORK_DIR}/target/wasm-gc/release/check/main/main.mi"
+        "artifact": "${WORK_DIR}/target/wasm-gc/debug/check/main/main.mi"
       }
     ],
     "deps": [],
     "backend": "wasm-gc",
-    "opt_level": "release",
+    "opt_level": "debug",
     "source": "src"
   }
diff --git a/crates/moon/tests/test_cases/design/mod.rs b/crates/moon/tests/test_cases/design/mod.rs
index 9a8d449d8..f6848d08e 100644
--- a/crates/moon/tests/test_cases/design/mod.rs
+++ b/crates/moon/tests/test_cases/design/mod.rs
@@ -66,8 +66,8 @@ fn test_design() {
     check(
         get_stdout(&dir, ["run", "main2", "--target", "js", "--build-only"]),
         expect![[r#"
-            {"artifacts_path":["$ROOT/target/js/release/build/main2/main2.js"]}
+            {"artifacts_path":["$ROOT/target/js/debug/build/main2/main2.js"]}
         "#]],
     );
-    assert!(dir.join("target/js/release/build/main2/main2.js").exists());
+    assert!(dir.join("target/js/debug/build/main2/main2.js").exists());
 }
diff --git a/crates/moon/tests/test_cases/dummy_core/mod.rs b/crates/moon/tests/test_cases/dummy_core/mod.rs
index f6ecfae62..fb0776ff3 100644
--- a/crates/moon/tests/test_cases/dummy_core/mod.rs
+++ b/crates/moon/tests/test_cases/dummy_core/mod.rs
@@ -121,7 +121,7 @@ fn test_dummy_core() {
                           "fspath": "$ROOT/prelude"
                         }
                       ],
-                      "artifact": "$ROOT/target/wasm-gc/release/check/0/0.mi"
+                      "artifact": "$ROOT/target/wasm-gc/debug/check/0/0.mi"
                     },
                     {
                       "is-main": false,
@@ -193,7 +193,7 @@ fn test_dummy_core() {
                           "fspath": "$ROOT/prelude"
                         }
                       ],
-                      "artifact": "$ROOT/target/wasm-gc/release/check/1/1.mi"
+                      "artifact": "$ROOT/target/wasm-gc/debug/check/1/1.mi"
                     },
                     {
                       "is-main": false,
@@ -234,7 +234,7 @@ fn test_dummy_core() {
                           "fspath": "$ROOT/prelude"
                         }
                       ],
-                      "artifact": "$ROOT/target/wasm-gc/release/check/2/2.mi"
+                      "artifact": "$ROOT/target/wasm-gc/debug/check/2/2.mi"
                     },
                     {
                       "is-main": false,
@@ -261,7 +261,7 @@ fn test_dummy_core() {
                           "fspath": "$ROOT/prelude"
                         }
                       ],
-                      "artifact": "$ROOT/target/wasm-gc/release/check/char/char.mi"
+                      "artifact": "$ROOT/target/wasm-gc/debug/check/char/char.mi"
                     },
                     {
                       "is-main": false,
@@ -282,7 +282,7 @@ fn test_dummy_core() {
                           "fspath": "$ROOT/prelude"
                         }
                       ],
-                      "artifact": "$ROOT/target/wasm-gc/release/check/coverage/coverage.mi"
+                      "artifact": "$ROOT/target/wasm-gc/debug/check/coverage/coverage.mi"
                     },
                     {
                       "is-main": false,
@@ -315,7 +315,7 @@ fn test_dummy_core() {
                           "fspath": "$ROOT/prelude"
                         }
                       ],
-                      "artifact": "$ROOT/target/wasm-gc/release/check/iter/iter.mi"
+                      "artifact": "$ROOT/target/wasm-gc/debug/check/iter/iter.mi"
                     },
                     {
                       "is-main": false,
@@ -336,12 +336,12 @@ fn test_dummy_core() {
                           "fspath": "$ROOT/prelude"
                         }
                       ],
-                      "artifact": "$ROOT/target/wasm-gc/release/check/prelude/prelude.mi"
+                      "artifact": "$ROOT/target/wasm-gc/debug/check/prelude/prelude.mi"
                     }
                   ],
                   "deps": [],
                   "backend": "wasm-gc",
-                  "opt_level": "release",
+                  "opt_level": "debug",
                   "source": null
                 }"#]],
         );
@@ -463,7 +463,7 @@ fn test_dummy_core() {
                           "fspath": "$ROOT/prelude"
                         }
                       ],
-                      "artifact": "$ROOT/target/js/release/check/0/0.mi"
+                      "artifact": "$ROOT/target/js/debug/check/0/0.mi"
                     },
                     {
                       "is-main": false,
@@ -535,7 +535,7 @@ fn test_dummy_core() {
                           "fspath": "$ROOT/prelude"
                         }
                       ],
-                      "artifact": "$ROOT/target/js/release/check/1/1.mi"
+                      "artifact": "$ROOT/target/js/debug/check/1/1.mi"
                     },
                     {
                       "is-main": false,
@@ -576,7 +576,7 @@ fn test_dummy_core() {
                           "fspath": "$ROOT/prelude"
                         }
                       ],
-                      "artifact": "$ROOT/target/js/release/check/2/2.mi"
+                      "artifact": "$ROOT/target/js/debug/check/2/2.mi"
                     },
                     {
                       "is-main": false,
@@ -603,7 +603,7 @@ fn test_dummy_core() {
                           "fspath": "$ROOT/prelude"
                         }
                       ],
-                      "artifact": "$ROOT/target/js/release/check/char/char.mi"
+                      "artifact": "$ROOT/target/js/debug/check/char/char.mi"
                     },
                     {
                       "is-main": false,
@@ -624,7 +624,7 @@ fn test_dummy_core() {
                           "fspath": "$ROOT/prelude"
                         }
                       ],
-                      "artifact": "$ROOT/target/js/release/check/coverage/coverage.mi"
+                      "artifact": "$ROOT/target/js/debug/check/coverage/coverage.mi"
                     },
                     {
                       "is-main": false,
@@ -657,7 +657,7 @@ fn test_dummy_core() {
                           "fspath": "$ROOT/prelude"
                         }
                       ],
-                      "artifact": "$ROOT/target/js/release/check/iter/iter.mi"
+                      "artifact": "$ROOT/target/js/debug/check/iter/iter.mi"
                     },
                     {
                       "is-main": false,
@@ -678,12 +678,12 @@ fn test_dummy_core() {
                           "fspath": "$ROOT/prelude"
                         }
                       ],
-                      "artifact": "$ROOT/target/js/release/check/prelude/prelude.mi"
+                      "artifact": "$ROOT/target/js/debug/check/prelude/prelude.mi"
                     }
                   ],
                   "deps": [],
                   "backend": "js",
-                  "opt_level": "release",
+                  "opt_level": "debug",
                   "source": null
                 }"#]],
         );
@@ -692,22 +692,22 @@ fn test_dummy_core() {
     check(
         get_stdout(&dir, ["check", "--dry-run", "--sort-input"]),
         expect![[r#"
-            moonc check -o ./target/wasm-gc/release/check/prelude/prelude.mi -pkg moonbitlang/core/prelude -pkg-sources moonbitlang/core/prelude:./prelude -target wasm-gc -workspace-path .
-            moonc check -include-doctests -o ./target/wasm-gc/release/check/prelude/prelude.blackbox_test.mi -pkg moonbitlang/core/prelude_blackbox_test -i ./target/wasm-gc/release/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/prelude_blackbox_test:./prelude -target wasm-gc -blackbox-test -workspace-path .
-            moonc check -o ./target/wasm-gc/release/check/coverage/coverage.mi -pkg moonbitlang/core/coverage -pkg-sources moonbitlang/core/coverage:./coverage -target wasm-gc -workspace-path .
-            moonc check -o ./target/wasm-gc/release/check/iter/iter.mi -pkg moonbitlang/core/iter -i ./target/wasm-gc/release/check/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/iter:./iter -target wasm-gc -workspace-path .
-            moonc check -include-doctests -o ./target/wasm-gc/release/check/iter/iter.blackbox_test.mi -pkg moonbitlang/core/iter_blackbox_test -i ./target/wasm-gc/release/check/iter/iter.mi:iter -i ./target/wasm-gc/release/check/coverage/coverage.mi:coverage -i ./target/wasm-gc/release/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/iter_blackbox_test:./iter -target wasm-gc -blackbox-test -workspace-path .
-            moonc check -include-doctests -o ./target/wasm-gc/release/check/coverage/coverage.blackbox_test.mi -pkg moonbitlang/core/coverage_blackbox_test -i ./target/wasm-gc/release/check/coverage/coverage.mi:coverage -i ./target/wasm-gc/release/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/coverage_blackbox_test:./coverage -target wasm-gc -blackbox-test -workspace-path .
-            moonc check -o ./target/wasm-gc/release/check/char/char.mi -pkg moonbitlang/core/char -i ./target/wasm-gc/release/check/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/char:./char -target wasm-gc -workspace-path .
-            moonc check -include-doctests -o ./target/wasm-gc/release/check/char/char.blackbox_test.mi -pkg moonbitlang/core/char_blackbox_test -i ./target/wasm-gc/release/check/char/char.mi:char -i ./target/wasm-gc/release/check/coverage/coverage.mi:coverage -i ./target/wasm-gc/release/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/char_blackbox_test:./char -target wasm-gc -blackbox-test -workspace-path .
-            moonc check ./1/lib.mbt ./1/x.wasm-gc.mbt -o ./target/wasm-gc/release/check/1/1.mi -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target wasm-gc -workspace-path .
-            moonc check ./2/lib.mbt -o ./target/wasm-gc/release/check/2/2.mi -pkg moonbitlang/core/2 -i ./target/wasm-gc/release/check/1/1.mi:1 -pkg-sources moonbitlang/core/2:./2 -target wasm-gc -workspace-path .
-            moonc check -doctest-only ./2/lib.mbt -include-doctests -o ./target/wasm-gc/release/check/2/2.blackbox_test.mi -pkg moonbitlang/core/2_blackbox_test -i ./target/wasm-gc/release/check/2/2.mi:2 -i ./target/wasm-gc/release/check/1/1.mi:1 -i ./target/wasm-gc/release/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/2_blackbox_test:./2 -target wasm-gc -blackbox-test -workspace-path .
-            moonc check ./1/lib.mbt ./1/x.wasm-gc.mbt ./1/x_wbtest.wasm-gc.mbt -o ./target/wasm-gc/release/check/1/1.whitebox_test.mi -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target wasm-gc -whitebox-test -workspace-path .
-            moonc check -doctest-only ./1/lib.mbt -doctest-only ./1/x.wasm-gc.mbt -include-doctests -o ./target/wasm-gc/release/check/1/1.blackbox_test.mi -pkg moonbitlang/core/1_blackbox_test -i ./target/wasm-gc/release/check/1/1.mi:1 -i ./target/wasm-gc/release/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/1_blackbox_test:./1 -target wasm-gc -blackbox-test -workspace-path .
-            moonc check ./0/lib.mbt ./0/y.wasm-gc.mbt ./0/y_wbtest.mbt ./0/y_wbtest.wasm-gc.mbt -o ./target/wasm-gc/release/check/0/0.whitebox_test.mi -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target wasm-gc -whitebox-test -workspace-path .
-            moonc check ./0/lib.mbt ./0/y.wasm-gc.mbt -o ./target/wasm-gc/release/check/0/0.mi -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target wasm-gc -workspace-path .
-            moonc check -doctest-only ./0/lib.mbt -doctest-only ./0/y.wasm-gc.mbt -include-doctests -o ./target/wasm-gc/release/check/0/0.blackbox_test.mi -pkg moonbitlang/core/0_blackbox_test -i ./target/wasm-gc/release/check/0/0.mi:0 -i ./target/wasm-gc/release/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/0_blackbox_test:./0 -target wasm-gc -blackbox-test -workspace-path .
+            moonc check -o ./target/wasm-gc/debug/check/prelude/prelude.mi -pkg moonbitlang/core/prelude -pkg-sources moonbitlang/core/prelude:./prelude -target wasm-gc -workspace-path .
+            moonc check -include-doctests -o ./target/wasm-gc/debug/check/prelude/prelude.blackbox_test.mi -pkg moonbitlang/core/prelude_blackbox_test -i ./target/wasm-gc/debug/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/prelude_blackbox_test:./prelude -target wasm-gc -blackbox-test -workspace-path .
+            moonc check -o ./target/wasm-gc/debug/check/coverage/coverage.mi -pkg moonbitlang/core/coverage -pkg-sources moonbitlang/core/coverage:./coverage -target wasm-gc -workspace-path .
+            moonc check -o ./target/wasm-gc/debug/check/iter/iter.mi -pkg moonbitlang/core/iter -i ./target/wasm-gc/debug/check/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/iter:./iter -target wasm-gc -workspace-path .
+            moonc check -include-doctests -o ./target/wasm-gc/debug/check/iter/iter.blackbox_test.mi -pkg moonbitlang/core/iter_blackbox_test -i ./target/wasm-gc/debug/check/iter/iter.mi:iter -i ./target/wasm-gc/debug/check/coverage/coverage.mi:coverage -i ./target/wasm-gc/debug/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/iter_blackbox_test:./iter -target wasm-gc -blackbox-test -workspace-path .
+            moonc check -include-doctests -o ./target/wasm-gc/debug/check/coverage/coverage.blackbox_test.mi -pkg moonbitlang/core/coverage_blackbox_test -i ./target/wasm-gc/debug/check/coverage/coverage.mi:coverage -i ./target/wasm-gc/debug/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/coverage_blackbox_test:./coverage -target wasm-gc -blackbox-test -workspace-path .
+            moonc check -o ./target/wasm-gc/debug/check/char/char.mi -pkg moonbitlang/core/char -i ./target/wasm-gc/debug/check/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/char:./char -target wasm-gc -workspace-path .
+            moonc check -include-doctests -o ./target/wasm-gc/debug/check/char/char.blackbox_test.mi -pkg moonbitlang/core/char_blackbox_test -i ./target/wasm-gc/debug/check/char/char.mi:char -i ./target/wasm-gc/debug/check/coverage/coverage.mi:coverage -i ./target/wasm-gc/debug/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/char_blackbox_test:./char -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./1/lib.mbt ./1/x.wasm-gc.mbt -o ./target/wasm-gc/debug/check/1/1.mi -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target wasm-gc -workspace-path .
+            moonc check ./2/lib.mbt -o ./target/wasm-gc/debug/check/2/2.mi -pkg moonbitlang/core/2 -i ./target/wasm-gc/debug/check/1/1.mi:1 -pkg-sources moonbitlang/core/2:./2 -target wasm-gc -workspace-path .
+            moonc check -doctest-only ./2/lib.mbt -include-doctests -o ./target/wasm-gc/debug/check/2/2.blackbox_test.mi -pkg moonbitlang/core/2_blackbox_test -i ./target/wasm-gc/debug/check/2/2.mi:2 -i ./target/wasm-gc/debug/check/1/1.mi:1 -i ./target/wasm-gc/debug/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/2_blackbox_test:./2 -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./1/lib.mbt ./1/x.wasm-gc.mbt ./1/x_wbtest.wasm-gc.mbt -o ./target/wasm-gc/debug/check/1/1.whitebox_test.mi -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target wasm-gc -whitebox-test -workspace-path .
+            moonc check -doctest-only ./1/lib.mbt -doctest-only ./1/x.wasm-gc.mbt -include-doctests -o ./target/wasm-gc/debug/check/1/1.blackbox_test.mi -pkg moonbitlang/core/1_blackbox_test -i ./target/wasm-gc/debug/check/1/1.mi:1 -i ./target/wasm-gc/debug/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/1_blackbox_test:./1 -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./0/lib.mbt ./0/y.wasm-gc.mbt ./0/y_wbtest.mbt ./0/y_wbtest.wasm-gc.mbt -o ./target/wasm-gc/debug/check/0/0.whitebox_test.mi -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target wasm-gc -whitebox-test -workspace-path .
+            moonc check ./0/lib.mbt ./0/y.wasm-gc.mbt -o ./target/wasm-gc/debug/check/0/0.mi -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target wasm-gc -workspace-path .
+            moonc check -doctest-only ./0/lib.mbt -doctest-only ./0/y.wasm-gc.mbt -include-doctests -o ./target/wasm-gc/debug/check/0/0.blackbox_test.mi -pkg moonbitlang/core/0_blackbox_test -i ./target/wasm-gc/debug/check/0/0.mi:0 -i ./target/wasm-gc/debug/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/0_blackbox_test:./0 -target wasm-gc -blackbox-test -workspace-path .
         "#]],
     );
     check(
@@ -716,22 +716,22 @@ fn test_dummy_core() {
             ["check", "--dry-run", "--target", "wasm", "--sort-input"],
         ),
         expect![[r#"
-            moonc check -o ./target/wasm/release/check/prelude/prelude.mi -pkg moonbitlang/core/prelude -pkg-sources moonbitlang/core/prelude:./prelude -target wasm -workspace-path .
-            moonc check -include-doctests -o ./target/wasm/release/check/prelude/prelude.blackbox_test.mi -pkg moonbitlang/core/prelude_blackbox_test -i ./target/wasm/release/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/prelude_blackbox_test:./prelude -target wasm -blackbox-test -workspace-path .
-            moonc check -o ./target/wasm/release/check/coverage/coverage.mi -pkg moonbitlang/core/coverage -pkg-sources moonbitlang/core/coverage:./coverage -target wasm -workspace-path .
-            moonc check -o ./target/wasm/release/check/iter/iter.mi -pkg moonbitlang/core/iter -i ./target/wasm/release/check/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/iter:./iter -target wasm -workspace-path .
-            moonc check -include-doctests -o ./target/wasm/release/check/iter/iter.blackbox_test.mi -pkg moonbitlang/core/iter_blackbox_test -i ./target/wasm/release/check/iter/iter.mi:iter -i ./target/wasm/release/check/coverage/coverage.mi:coverage -i ./target/wasm/release/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/iter_blackbox_test:./iter -target wasm -blackbox-test -workspace-path .
-            moonc check -include-doctests -o ./target/wasm/release/check/coverage/coverage.blackbox_test.mi -pkg moonbitlang/core/coverage_blackbox_test -i ./target/wasm/release/check/coverage/coverage.mi:coverage -i ./target/wasm/release/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/coverage_blackbox_test:./coverage -target wasm -blackbox-test -workspace-path .
-            moonc check -o ./target/wasm/release/check/char/char.mi -pkg moonbitlang/core/char -i ./target/wasm/release/check/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/char:./char -target wasm -workspace-path .
-            moonc check -include-doctests -o ./target/wasm/release/check/char/char.blackbox_test.mi -pkg moonbitlang/core/char_blackbox_test -i ./target/wasm/release/check/char/char.mi:char -i ./target/wasm/release/check/coverage/coverage.mi:coverage -i ./target/wasm/release/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/char_blackbox_test:./char -target wasm -blackbox-test -workspace-path .
-            moonc check ./1/lib.mbt ./1/x.wasm.mbt -o ./target/wasm/release/check/1/1.mi -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target wasm -workspace-path .
-            moonc check ./2/lib.mbt -o ./target/wasm/release/check/2/2.mi -pkg moonbitlang/core/2 -i ./target/wasm/release/check/1/1.mi:1 -pkg-sources moonbitlang/core/2:./2 -target wasm -workspace-path .
-            moonc check -doctest-only ./2/lib.mbt -include-doctests -o ./target/wasm/release/check/2/2.blackbox_test.mi -pkg moonbitlang/core/2_blackbox_test -i ./target/wasm/release/check/2/2.mi:2 -i ./target/wasm/release/check/1/1.mi:1 -i ./target/wasm/release/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/2_blackbox_test:./2 -target wasm -blackbox-test -workspace-path .
-            moonc check ./1/lib.mbt ./1/x.wasm.mbt -o ./target/wasm/release/check/1/1.whitebox_test.mi -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target wasm -whitebox-test -workspace-path .
-            moonc check -doctest-only ./1/lib.mbt -doctest-only ./1/x.wasm.mbt -include-doctests -o ./target/wasm/release/check/1/1.blackbox_test.mi -pkg moonbitlang/core/1_blackbox_test -i ./target/wasm/release/check/1/1.mi:1 -i ./target/wasm/release/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/1_blackbox_test:./1 -target wasm -blackbox-test -workspace-path .
-            moonc check ./0/lib.mbt ./0/y.wasm.mbt ./0/y_wbtest.mbt ./0/y_wbtest.wasm.mbt -o ./target/wasm/release/check/0/0.whitebox_test.mi -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target wasm -whitebox-test -workspace-path .
-            moonc check ./0/lib.mbt ./0/y.wasm.mbt -o ./target/wasm/release/check/0/0.mi -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target wasm -workspace-path .
-            moonc check -doctest-only ./0/lib.mbt -doctest-only ./0/y.wasm.mbt -include-doctests -o ./target/wasm/release/check/0/0.blackbox_test.mi -pkg moonbitlang/core/0_blackbox_test -i ./target/wasm/release/check/0/0.mi:0 -i ./target/wasm/release/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/0_blackbox_test:./0 -target wasm -blackbox-test -workspace-path .
+            moonc check -o ./target/wasm/debug/check/prelude/prelude.mi -pkg moonbitlang/core/prelude -pkg-sources moonbitlang/core/prelude:./prelude -target wasm -workspace-path .
+            moonc check -include-doctests -o ./target/wasm/debug/check/prelude/prelude.blackbox_test.mi -pkg moonbitlang/core/prelude_blackbox_test -i ./target/wasm/debug/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/prelude_blackbox_test:./prelude -target wasm -blackbox-test -workspace-path .
+            moonc check -o ./target/wasm/debug/check/coverage/coverage.mi -pkg moonbitlang/core/coverage -pkg-sources moonbitlang/core/coverage:./coverage -target wasm -workspace-path .
+            moonc check -o ./target/wasm/debug/check/iter/iter.mi -pkg moonbitlang/core/iter -i ./target/wasm/debug/check/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/iter:./iter -target wasm -workspace-path .
+            moonc check -include-doctests -o ./target/wasm/debug/check/iter/iter.blackbox_test.mi -pkg moonbitlang/core/iter_blackbox_test -i ./target/wasm/debug/check/iter/iter.mi:iter -i ./target/wasm/debug/check/coverage/coverage.mi:coverage -i ./target/wasm/debug/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/iter_blackbox_test:./iter -target wasm -blackbox-test -workspace-path .
+            moonc check -include-doctests -o ./target/wasm/debug/check/coverage/coverage.blackbox_test.mi -pkg moonbitlang/core/coverage_blackbox_test -i ./target/wasm/debug/check/coverage/coverage.mi:coverage -i ./target/wasm/debug/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/coverage_blackbox_test:./coverage -target wasm -blackbox-test -workspace-path .
+            moonc check -o ./target/wasm/debug/check/char/char.mi -pkg moonbitlang/core/char -i ./target/wasm/debug/check/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/char:./char -target wasm -workspace-path .
+            moonc check -include-doctests -o ./target/wasm/debug/check/char/char.blackbox_test.mi -pkg moonbitlang/core/char_blackbox_test -i ./target/wasm/debug/check/char/char.mi:char -i ./target/wasm/debug/check/coverage/coverage.mi:coverage -i ./target/wasm/debug/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/char_blackbox_test:./char -target wasm -blackbox-test -workspace-path .
+            moonc check ./1/lib.mbt ./1/x.wasm.mbt -o ./target/wasm/debug/check/1/1.mi -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target wasm -workspace-path .
+            moonc check ./2/lib.mbt -o ./target/wasm/debug/check/2/2.mi -pkg moonbitlang/core/2 -i ./target/wasm/debug/check/1/1.mi:1 -pkg-sources moonbitlang/core/2:./2 -target wasm -workspace-path .
+            moonc check -doctest-only ./2/lib.mbt -include-doctests -o ./target/wasm/debug/check/2/2.blackbox_test.mi -pkg moonbitlang/core/2_blackbox_test -i ./target/wasm/debug/check/2/2.mi:2 -i ./target/wasm/debug/check/1/1.mi:1 -i ./target/wasm/debug/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/2_blackbox_test:./2 -target wasm -blackbox-test -workspace-path .
+            moonc check ./1/lib.mbt ./1/x.wasm.mbt -o ./target/wasm/debug/check/1/1.whitebox_test.mi -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target wasm -whitebox-test -workspace-path .
+            moonc check -doctest-only ./1/lib.mbt -doctest-only ./1/x.wasm.mbt -include-doctests -o ./target/wasm/debug/check/1/1.blackbox_test.mi -pkg moonbitlang/core/1_blackbox_test -i ./target/wasm/debug/check/1/1.mi:1 -i ./target/wasm/debug/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/1_blackbox_test:./1 -target wasm -blackbox-test -workspace-path .
+            moonc check ./0/lib.mbt ./0/y.wasm.mbt ./0/y_wbtest.mbt ./0/y_wbtest.wasm.mbt -o ./target/wasm/debug/check/0/0.whitebox_test.mi -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target wasm -whitebox-test -workspace-path .
+            moonc check ./0/lib.mbt ./0/y.wasm.mbt -o ./target/wasm/debug/check/0/0.mi -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target wasm -workspace-path .
+            moonc check -doctest-only ./0/lib.mbt -doctest-only ./0/y.wasm.mbt -include-doctests -o ./target/wasm/debug/check/0/0.blackbox_test.mi -pkg moonbitlang/core/0_blackbox_test -i ./target/wasm/debug/check/0/0.mi:0 -i ./target/wasm/debug/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/0_blackbox_test:./0 -target wasm -blackbox-test -workspace-path .
         "#]],
     );
     check(
@@ -740,22 +740,22 @@ fn test_dummy_core() {
             ["check", "--dry-run", "--target", "wasm-gc", "--sort-input"],
         ),
         expect![[r#"
-            moonc check -o ./target/wasm-gc/release/check/prelude/prelude.mi -pkg moonbitlang/core/prelude -pkg-sources moonbitlang/core/prelude:./prelude -target wasm-gc -workspace-path .
-            moonc check -include-doctests -o ./target/wasm-gc/release/check/prelude/prelude.blackbox_test.mi -pkg moonbitlang/core/prelude_blackbox_test -i ./target/wasm-gc/release/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/prelude_blackbox_test:./prelude -target wasm-gc -blackbox-test -workspace-path .
-            moonc check -o ./target/wasm-gc/release/check/coverage/coverage.mi -pkg moonbitlang/core/coverage -pkg-sources moonbitlang/core/coverage:./coverage -target wasm-gc -workspace-path .
-            moonc check -o ./target/wasm-gc/release/check/iter/iter.mi -pkg moonbitlang/core/iter -i ./target/wasm-gc/release/check/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/iter:./iter -target wasm-gc -workspace-path .
-            moonc check -include-doctests -o ./target/wasm-gc/release/check/iter/iter.blackbox_test.mi -pkg moonbitlang/core/iter_blackbox_test -i ./target/wasm-gc/release/check/iter/iter.mi:iter -i ./target/wasm-gc/release/check/coverage/coverage.mi:coverage -i ./target/wasm-gc/release/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/iter_blackbox_test:./iter -target wasm-gc -blackbox-test -workspace-path .
-            moonc check -include-doctests -o ./target/wasm-gc/release/check/coverage/coverage.blackbox_test.mi -pkg moonbitlang/core/coverage_blackbox_test -i ./target/wasm-gc/release/check/coverage/coverage.mi:coverage -i ./target/wasm-gc/release/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/coverage_blackbox_test:./coverage -target wasm-gc -blackbox-test -workspace-path .
-            moonc check -o ./target/wasm-gc/release/check/char/char.mi -pkg moonbitlang/core/char -i ./target/wasm-gc/release/check/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/char:./char -target wasm-gc -workspace-path .
-            moonc check -include-doctests -o ./target/wasm-gc/release/check/char/char.blackbox_test.mi -pkg moonbitlang/core/char_blackbox_test -i ./target/wasm-gc/release/check/char/char.mi:char -i ./target/wasm-gc/release/check/coverage/coverage.mi:coverage -i ./target/wasm-gc/release/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/char_blackbox_test:./char -target wasm-gc -blackbox-test -workspace-path .
-            moonc check ./1/lib.mbt ./1/x.wasm-gc.mbt -o ./target/wasm-gc/release/check/1/1.mi -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target wasm-gc -workspace-path .
-            moonc check ./2/lib.mbt -o ./target/wasm-gc/release/check/2/2.mi -pkg moonbitlang/core/2 -i ./target/wasm-gc/release/check/1/1.mi:1 -pkg-sources moonbitlang/core/2:./2 -target wasm-gc -workspace-path .
-            moonc check -doctest-only ./2/lib.mbt -include-doctests -o ./target/wasm-gc/release/check/2/2.blackbox_test.mi -pkg moonbitlang/core/2_blackbox_test -i ./target/wasm-gc/release/check/2/2.mi:2 -i ./target/wasm-gc/release/check/1/1.mi:1 -i ./target/wasm-gc/release/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/2_blackbox_test:./2 -target wasm-gc -blackbox-test -workspace-path .
-            moonc check ./1/lib.mbt ./1/x.wasm-gc.mbt ./1/x_wbtest.wasm-gc.mbt -o ./target/wasm-gc/release/check/1/1.whitebox_test.mi -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target wasm-gc -whitebox-test -workspace-path .
-            moonc check -doctest-only ./1/lib.mbt -doctest-only ./1/x.wasm-gc.mbt -include-doctests -o ./target/wasm-gc/release/check/1/1.blackbox_test.mi -pkg moonbitlang/core/1_blackbox_test -i ./target/wasm-gc/release/check/1/1.mi:1 -i ./target/wasm-gc/release/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/1_blackbox_test:./1 -target wasm-gc -blackbox-test -workspace-path .
-            moonc check ./0/lib.mbt ./0/y.wasm-gc.mbt ./0/y_wbtest.mbt ./0/y_wbtest.wasm-gc.mbt -o ./target/wasm-gc/release/check/0/0.whitebox_test.mi -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target wasm-gc -whitebox-test -workspace-path .
-            moonc check ./0/lib.mbt ./0/y.wasm-gc.mbt -o ./target/wasm-gc/release/check/0/0.mi -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target wasm-gc -workspace-path .
-            moonc check -doctest-only ./0/lib.mbt -doctest-only ./0/y.wasm-gc.mbt -include-doctests -o ./target/wasm-gc/release/check/0/0.blackbox_test.mi -pkg moonbitlang/core/0_blackbox_test -i ./target/wasm-gc/release/check/0/0.mi:0 -i ./target/wasm-gc/release/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/0_blackbox_test:./0 -target wasm-gc -blackbox-test -workspace-path .
+            moonc check -o ./target/wasm-gc/debug/check/prelude/prelude.mi -pkg moonbitlang/core/prelude -pkg-sources moonbitlang/core/prelude:./prelude -target wasm-gc -workspace-path .
+            moonc check -include-doctests -o ./target/wasm-gc/debug/check/prelude/prelude.blackbox_test.mi -pkg moonbitlang/core/prelude_blackbox_test -i ./target/wasm-gc/debug/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/prelude_blackbox_test:./prelude -target wasm-gc -blackbox-test -workspace-path .
+            moonc check -o ./target/wasm-gc/debug/check/coverage/coverage.mi -pkg moonbitlang/core/coverage -pkg-sources moonbitlang/core/coverage:./coverage -target wasm-gc -workspace-path .
+            moonc check -o ./target/wasm-gc/debug/check/iter/iter.mi -pkg moonbitlang/core/iter -i ./target/wasm-gc/debug/check/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/iter:./iter -target wasm-gc -workspace-path .
+            moonc check -include-doctests -o ./target/wasm-gc/debug/check/iter/iter.blackbox_test.mi -pkg moonbitlang/core/iter_blackbox_test -i ./target/wasm-gc/debug/check/iter/iter.mi:iter -i ./target/wasm-gc/debug/check/coverage/coverage.mi:coverage -i ./target/wasm-gc/debug/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/iter_blackbox_test:./iter -target wasm-gc -blackbox-test -workspace-path .
+            moonc check -include-doctests -o ./target/wasm-gc/debug/check/coverage/coverage.blackbox_test.mi -pkg moonbitlang/core/coverage_blackbox_test -i ./target/wasm-gc/debug/check/coverage/coverage.mi:coverage -i ./target/wasm-gc/debug/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/coverage_blackbox_test:./coverage -target wasm-gc -blackbox-test -workspace-path .
+            moonc check -o ./target/wasm-gc/debug/check/char/char.mi -pkg moonbitlang/core/char -i ./target/wasm-gc/debug/check/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/char:./char -target wasm-gc -workspace-path .
+            moonc check -include-doctests -o ./target/wasm-gc/debug/check/char/char.blackbox_test.mi -pkg moonbitlang/core/char_blackbox_test -i ./target/wasm-gc/debug/check/char/char.mi:char -i ./target/wasm-gc/debug/check/coverage/coverage.mi:coverage -i ./target/wasm-gc/debug/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/char_blackbox_test:./char -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./1/lib.mbt ./1/x.wasm-gc.mbt -o ./target/wasm-gc/debug/check/1/1.mi -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target wasm-gc -workspace-path .
+            moonc check ./2/lib.mbt -o ./target/wasm-gc/debug/check/2/2.mi -pkg moonbitlang/core/2 -i ./target/wasm-gc/debug/check/1/1.mi:1 -pkg-sources moonbitlang/core/2:./2 -target wasm-gc -workspace-path .
+            moonc check -doctest-only ./2/lib.mbt -include-doctests -o ./target/wasm-gc/debug/check/2/2.blackbox_test.mi -pkg moonbitlang/core/2_blackbox_test -i ./target/wasm-gc/debug/check/2/2.mi:2 -i ./target/wasm-gc/debug/check/1/1.mi:1 -i ./target/wasm-gc/debug/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/2_blackbox_test:./2 -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./1/lib.mbt ./1/x.wasm-gc.mbt ./1/x_wbtest.wasm-gc.mbt -o ./target/wasm-gc/debug/check/1/1.whitebox_test.mi -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target wasm-gc -whitebox-test -workspace-path .
+            moonc check -doctest-only ./1/lib.mbt -doctest-only ./1/x.wasm-gc.mbt -include-doctests -o ./target/wasm-gc/debug/check/1/1.blackbox_test.mi -pkg moonbitlang/core/1_blackbox_test -i ./target/wasm-gc/debug/check/1/1.mi:1 -i ./target/wasm-gc/debug/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/1_blackbox_test:./1 -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./0/lib.mbt ./0/y.wasm-gc.mbt ./0/y_wbtest.mbt ./0/y_wbtest.wasm-gc.mbt -o ./target/wasm-gc/debug/check/0/0.whitebox_test.mi -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target wasm-gc -whitebox-test -workspace-path .
+            moonc check ./0/lib.mbt ./0/y.wasm-gc.mbt -o ./target/wasm-gc/debug/check/0/0.mi -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target wasm-gc -workspace-path .
+            moonc check -doctest-only ./0/lib.mbt -doctest-only ./0/y.wasm-gc.mbt -include-doctests -o ./target/wasm-gc/debug/check/0/0.blackbox_test.mi -pkg moonbitlang/core/0_blackbox_test -i ./target/wasm-gc/debug/check/0/0.mi:0 -i ./target/wasm-gc/debug/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/0_blackbox_test:./0 -target wasm-gc -blackbox-test -workspace-path .
         "#]],
     );
     check(
@@ -764,34 +764,34 @@ fn test_dummy_core() {
             ["check", "--dry-run", "--target", "js", "--sort-input"],
         ),
         expect![[r#"
-            moonc check -o ./target/js/release/check/prelude/prelude.mi -pkg moonbitlang/core/prelude -pkg-sources moonbitlang/core/prelude:./prelude -target js -workspace-path .
-            moonc check -include-doctests -o ./target/js/release/check/prelude/prelude.blackbox_test.mi -pkg moonbitlang/core/prelude_blackbox_test -i ./target/js/release/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/prelude_blackbox_test:./prelude -target js -blackbox-test -workspace-path .
-            moonc check -o ./target/js/release/check/coverage/coverage.mi -pkg moonbitlang/core/coverage -pkg-sources moonbitlang/core/coverage:./coverage -target js -workspace-path .
-            moonc check -o ./target/js/release/check/iter/iter.mi -pkg moonbitlang/core/iter -i ./target/js/release/check/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/iter:./iter -target js -workspace-path .
-            moonc check -include-doctests -o ./target/js/release/check/iter/iter.blackbox_test.mi -pkg moonbitlang/core/iter_blackbox_test -i ./target/js/release/check/iter/iter.mi:iter -i ./target/js/release/check/coverage/coverage.mi:coverage -i ./target/js/release/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/iter_blackbox_test:./iter -target js -blackbox-test -workspace-path .
-            moonc check -include-doctests -o ./target/js/release/check/coverage/coverage.blackbox_test.mi -pkg moonbitlang/core/coverage_blackbox_test -i ./target/js/release/check/coverage/coverage.mi:coverage -i ./target/js/release/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/coverage_blackbox_test:./coverage -target js -blackbox-test -workspace-path .
-            moonc check -o ./target/js/release/check/char/char.mi -pkg moonbitlang/core/char -i ./target/js/release/check/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/char:./char -target js -workspace-path .
-            moonc check -include-doctests -o ./target/js/release/check/char/char.blackbox_test.mi -pkg moonbitlang/core/char_blackbox_test -i ./target/js/release/check/char/char.mi:char -i ./target/js/release/check/coverage/coverage.mi:coverage -i ./target/js/release/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/char_blackbox_test:./char -target js -blackbox-test -workspace-path .
-            moonc check ./1/lib.mbt ./1/x.js.mbt -o ./target/js/release/check/1/1.mi -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target js -workspace-path .
-            moonc check ./2/lib.mbt -o ./target/js/release/check/2/2.mi -pkg moonbitlang/core/2 -i ./target/js/release/check/1/1.mi:1 -pkg-sources moonbitlang/core/2:./2 -target js -workspace-path .
-            moonc check -doctest-only ./2/lib.mbt -include-doctests -o ./target/js/release/check/2/2.blackbox_test.mi -pkg moonbitlang/core/2_blackbox_test -i ./target/js/release/check/2/2.mi:2 -i ./target/js/release/check/1/1.mi:1 -i ./target/js/release/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/2_blackbox_test:./2 -target js -blackbox-test -workspace-path .
-            moonc check ./1/lib.mbt ./1/x.js.mbt -o ./target/js/release/check/1/1.whitebox_test.mi -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target js -whitebox-test -workspace-path .
-            moonc check -doctest-only ./1/lib.mbt -doctest-only ./1/x.js.mbt -include-doctests -o ./target/js/release/check/1/1.blackbox_test.mi -pkg moonbitlang/core/1_blackbox_test -i ./target/js/release/check/1/1.mi:1 -i ./target/js/release/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/1_blackbox_test:./1 -target js -blackbox-test -workspace-path .
-            moonc check ./0/lib.mbt ./0/y.js.mbt ./0/y_wbtest.js.mbt ./0/y_wbtest.mbt -o ./target/js/release/check/0/0.whitebox_test.mi -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target js -whitebox-test -workspace-path .
-            moonc check ./0/lib.mbt ./0/y.js.mbt -o ./target/js/release/check/0/0.mi -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target js -workspace-path .
-            moonc check -doctest-only ./0/lib.mbt -doctest-only ./0/y.js.mbt -include-doctests -o ./target/js/release/check/0/0.blackbox_test.mi -pkg moonbitlang/core/0_blackbox_test -i ./target/js/release/check/0/0.mi:0 -i ./target/js/release/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/0_blackbox_test:./0 -target js -blackbox-test -workspace-path .
+            moonc check -o ./target/js/debug/check/prelude/prelude.mi -pkg moonbitlang/core/prelude -pkg-sources moonbitlang/core/prelude:./prelude -target js -workspace-path .
+            moonc check -include-doctests -o ./target/js/debug/check/prelude/prelude.blackbox_test.mi -pkg moonbitlang/core/prelude_blackbox_test -i ./target/js/debug/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/prelude_blackbox_test:./prelude -target js -blackbox-test -workspace-path .
+            moonc check -o ./target/js/debug/check/coverage/coverage.mi -pkg moonbitlang/core/coverage -pkg-sources moonbitlang/core/coverage:./coverage -target js -workspace-path .
+            moonc check -o ./target/js/debug/check/iter/iter.mi -pkg moonbitlang/core/iter -i ./target/js/debug/check/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/iter:./iter -target js -workspace-path .
+            moonc check -include-doctests -o ./target/js/debug/check/iter/iter.blackbox_test.mi -pkg moonbitlang/core/iter_blackbox_test -i ./target/js/debug/check/iter/iter.mi:iter -i ./target/js/debug/check/coverage/coverage.mi:coverage -i ./target/js/debug/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/iter_blackbox_test:./iter -target js -blackbox-test -workspace-path .
+            moonc check -include-doctests -o ./target/js/debug/check/coverage/coverage.blackbox_test.mi -pkg moonbitlang/core/coverage_blackbox_test -i ./target/js/debug/check/coverage/coverage.mi:coverage -i ./target/js/debug/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/coverage_blackbox_test:./coverage -target js -blackbox-test -workspace-path .
+            moonc check -o ./target/js/debug/check/char/char.mi -pkg moonbitlang/core/char -i ./target/js/debug/check/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/char:./char -target js -workspace-path .
+            moonc check -include-doctests -o ./target/js/debug/check/char/char.blackbox_test.mi -pkg moonbitlang/core/char_blackbox_test -i ./target/js/debug/check/char/char.mi:char -i ./target/js/debug/check/coverage/coverage.mi:coverage -i ./target/js/debug/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/char_blackbox_test:./char -target js -blackbox-test -workspace-path .
+            moonc check ./1/lib.mbt ./1/x.js.mbt -o ./target/js/debug/check/1/1.mi -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target js -workspace-path .
+            moonc check ./2/lib.mbt -o ./target/js/debug/check/2/2.mi -pkg moonbitlang/core/2 -i ./target/js/debug/check/1/1.mi:1 -pkg-sources moonbitlang/core/2:./2 -target js -workspace-path .
+            moonc check -doctest-only ./2/lib.mbt -include-doctests -o ./target/js/debug/check/2/2.blackbox_test.mi -pkg moonbitlang/core/2_blackbox_test -i ./target/js/debug/check/2/2.mi:2 -i ./target/js/debug/check/1/1.mi:1 -i ./target/js/debug/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/2_blackbox_test:./2 -target js -blackbox-test -workspace-path .
+            moonc check ./1/lib.mbt ./1/x.js.mbt -o ./target/js/debug/check/1/1.whitebox_test.mi -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target js -whitebox-test -workspace-path .
+            moonc check -doctest-only ./1/lib.mbt -doctest-only ./1/x.js.mbt -include-doctests -o ./target/js/debug/check/1/1.blackbox_test.mi -pkg moonbitlang/core/1_blackbox_test -i ./target/js/debug/check/1/1.mi:1 -i ./target/js/debug/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/1_blackbox_test:./1 -target js -blackbox-test -workspace-path .
+            moonc check ./0/lib.mbt ./0/y.js.mbt ./0/y_wbtest.js.mbt ./0/y_wbtest.mbt -o ./target/js/debug/check/0/0.whitebox_test.mi -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target js -whitebox-test -workspace-path .
+            moonc check ./0/lib.mbt ./0/y.js.mbt -o ./target/js/debug/check/0/0.mi -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target js -workspace-path .
+            moonc check -doctest-only ./0/lib.mbt -doctest-only ./0/y.js.mbt -include-doctests -o ./target/js/debug/check/0/0.blackbox_test.mi -pkg moonbitlang/core/0_blackbox_test -i ./target/js/debug/check/0/0.mi:0 -i ./target/js/debug/check/prelude/prelude.mi:prelude -pkg-sources moonbitlang/core/0_blackbox_test:./0 -target js -blackbox-test -workspace-path .
         "#]],
     );
 
     check(
         get_stdout(&dir, ["build", "--dry-run", "--sort-input"]),
         expect![[r#"
-            moonc build-package ./1/lib.mbt ./1/x.wasm-gc.mbt -o ./target/wasm-gc/release/build/1/1.core -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target wasm-gc -workspace-path .
-            moonc build-package ./2/lib.mbt -o ./target/wasm-gc/release/build/2/2.core -pkg moonbitlang/core/2 -i ./target/wasm-gc/release/build/1/1.mi:1 -pkg-sources moonbitlang/core/2:./2 -target wasm-gc -workspace-path .
-            moonc link-core ./target/wasm-gc/release/build/1/1.core ./target/wasm-gc/release/build/2/2.core -main moonbitlang/core/2 -o ./target/wasm-gc/release/build/2/2.wasm -pkg-config-path ./2/moon.pkg.json -pkg-sources moonbitlang/core/1:./1 -pkg-sources moonbitlang/core/2:./2 -target wasm-gc
-            moonc link-core ./target/wasm-gc/release/build/1/1.core -main moonbitlang/core/1 -o ./target/wasm-gc/release/build/1/1.wasm -pkg-config-path ./1/moon.pkg.json -pkg-sources moonbitlang/core/1:./1 -target wasm-gc
-            moonc build-package ./0/lib.mbt ./0/y.wasm-gc.mbt -o ./target/wasm-gc/release/build/0/0.core -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target wasm-gc -workspace-path .
-            moonc link-core ./target/wasm-gc/release/build/0/0.core -main moonbitlang/core/0 -o ./target/wasm-gc/release/build/0/0.wasm -pkg-config-path ./0/moon.pkg.json -pkg-sources moonbitlang/core/0:./0 -target wasm-gc
+            moonc build-package ./1/lib.mbt ./1/x.wasm-gc.mbt -o ./target/wasm-gc/debug/build/1/1.core -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./2/lib.mbt -o ./target/wasm-gc/debug/build/2/2.core -pkg moonbitlang/core/2 -i ./target/wasm-gc/debug/build/1/1.mi:1 -pkg-sources moonbitlang/core/2:./2 -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core ./target/wasm-gc/debug/build/1/1.core ./target/wasm-gc/debug/build/2/2.core -main moonbitlang/core/2 -o ./target/wasm-gc/debug/build/2/2.wasm -pkg-config-path ./2/moon.pkg.json -pkg-sources moonbitlang/core/1:./1 -pkg-sources moonbitlang/core/2:./2 -target wasm-gc -g -O0 -source-map
+            moonc link-core ./target/wasm-gc/debug/build/1/1.core -main moonbitlang/core/1 -o ./target/wasm-gc/debug/build/1/1.wasm -pkg-config-path ./1/moon.pkg.json -pkg-sources moonbitlang/core/1:./1 -target wasm-gc -g -O0 -source-map
+            moonc build-package ./0/lib.mbt ./0/y.wasm-gc.mbt -o ./target/wasm-gc/debug/build/0/0.core -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core ./target/wasm-gc/debug/build/0/0.core -main moonbitlang/core/0 -o ./target/wasm-gc/debug/build/0/0.wasm -pkg-config-path ./0/moon.pkg.json -pkg-sources moonbitlang/core/0:./0 -target wasm-gc -g -O0 -source-map
         "#]],
     );
     check(
@@ -800,12 +800,12 @@ fn test_dummy_core() {
             ["build", "--dry-run", "--target", "wasm", "--sort-input"],
         ),
         expect![[r#"
-            moonc build-package ./1/lib.mbt ./1/x.wasm.mbt -o ./target/wasm/release/build/1/1.core -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target wasm -workspace-path .
-            moonc build-package ./2/lib.mbt -o ./target/wasm/release/build/2/2.core -pkg moonbitlang/core/2 -i ./target/wasm/release/build/1/1.mi:1 -pkg-sources moonbitlang/core/2:./2 -target wasm -workspace-path .
-            moonc link-core ./target/wasm/release/build/1/1.core ./target/wasm/release/build/2/2.core -main moonbitlang/core/2 -o ./target/wasm/release/build/2/2.wasm -pkg-config-path ./2/moon.pkg.json -pkg-sources moonbitlang/core/1:./1 -pkg-sources moonbitlang/core/2:./2 -target wasm
-            moonc link-core ./target/wasm/release/build/1/1.core -main moonbitlang/core/1 -o ./target/wasm/release/build/1/1.wasm -pkg-config-path ./1/moon.pkg.json -pkg-sources moonbitlang/core/1:./1 -target wasm
-            moonc build-package ./0/lib.mbt ./0/y.wasm.mbt -o ./target/wasm/release/build/0/0.core -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target wasm -workspace-path .
-            moonc link-core ./target/wasm/release/build/0/0.core -main moonbitlang/core/0 -o ./target/wasm/release/build/0/0.wasm -pkg-config-path ./0/moon.pkg.json -pkg-sources moonbitlang/core/0:./0 -target wasm
+            moonc build-package ./1/lib.mbt ./1/x.wasm.mbt -o ./target/wasm/debug/build/1/1.core -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target wasm -g -O0 -workspace-path .
+            moonc build-package ./2/lib.mbt -o ./target/wasm/debug/build/2/2.core -pkg moonbitlang/core/2 -i ./target/wasm/debug/build/1/1.mi:1 -pkg-sources moonbitlang/core/2:./2 -target wasm -g -O0 -workspace-path .
+            moonc link-core ./target/wasm/debug/build/1/1.core ./target/wasm/debug/build/2/2.core -main moonbitlang/core/2 -o ./target/wasm/debug/build/2/2.wasm -pkg-config-path ./2/moon.pkg.json -pkg-sources moonbitlang/core/1:./1 -pkg-sources moonbitlang/core/2:./2 -target wasm -g -O0
+            moonc link-core ./target/wasm/debug/build/1/1.core -main moonbitlang/core/1 -o ./target/wasm/debug/build/1/1.wasm -pkg-config-path ./1/moon.pkg.json -pkg-sources moonbitlang/core/1:./1 -target wasm -g -O0
+            moonc build-package ./0/lib.mbt ./0/y.wasm.mbt -o ./target/wasm/debug/build/0/0.core -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target wasm -g -O0 -workspace-path .
+            moonc link-core ./target/wasm/debug/build/0/0.core -main moonbitlang/core/0 -o ./target/wasm/debug/build/0/0.wasm -pkg-config-path ./0/moon.pkg.json -pkg-sources moonbitlang/core/0:./0 -target wasm -g -O0
         "#]],
     );
     check(
@@ -814,12 +814,12 @@ fn test_dummy_core() {
             ["build", "--dry-run", "--target", "wasm-gc", "--sort-input"],
         ),
         expect![[r#"
-            moonc build-package ./1/lib.mbt ./1/x.wasm-gc.mbt -o ./target/wasm-gc/release/build/1/1.core -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target wasm-gc -workspace-path .
-            moonc build-package ./2/lib.mbt -o ./target/wasm-gc/release/build/2/2.core -pkg moonbitlang/core/2 -i ./target/wasm-gc/release/build/1/1.mi:1 -pkg-sources moonbitlang/core/2:./2 -target wasm-gc -workspace-path .
-            moonc link-core ./target/wasm-gc/release/build/1/1.core ./target/wasm-gc/release/build/2/2.core -main moonbitlang/core/2 -o ./target/wasm-gc/release/build/2/2.wasm -pkg-config-path ./2/moon.pkg.json -pkg-sources moonbitlang/core/1:./1 -pkg-sources moonbitlang/core/2:./2 -target wasm-gc
-            moonc link-core ./target/wasm-gc/release/build/1/1.core -main moonbitlang/core/1 -o ./target/wasm-gc/release/build/1/1.wasm -pkg-config-path ./1/moon.pkg.json -pkg-sources moonbitlang/core/1:./1 -target wasm-gc
-            moonc build-package ./0/lib.mbt ./0/y.wasm-gc.mbt -o ./target/wasm-gc/release/build/0/0.core -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target wasm-gc -workspace-path .
-            moonc link-core ./target/wasm-gc/release/build/0/0.core -main moonbitlang/core/0 -o ./target/wasm-gc/release/build/0/0.wasm -pkg-config-path ./0/moon.pkg.json -pkg-sources moonbitlang/core/0:./0 -target wasm-gc
+            moonc build-package ./1/lib.mbt ./1/x.wasm-gc.mbt -o ./target/wasm-gc/debug/build/1/1.core -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./2/lib.mbt -o ./target/wasm-gc/debug/build/2/2.core -pkg moonbitlang/core/2 -i ./target/wasm-gc/debug/build/1/1.mi:1 -pkg-sources moonbitlang/core/2:./2 -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core ./target/wasm-gc/debug/build/1/1.core ./target/wasm-gc/debug/build/2/2.core -main moonbitlang/core/2 -o ./target/wasm-gc/debug/build/2/2.wasm -pkg-config-path ./2/moon.pkg.json -pkg-sources moonbitlang/core/1:./1 -pkg-sources moonbitlang/core/2:./2 -target wasm-gc -g -O0 -source-map
+            moonc link-core ./target/wasm-gc/debug/build/1/1.core -main moonbitlang/core/1 -o ./target/wasm-gc/debug/build/1/1.wasm -pkg-config-path ./1/moon.pkg.json -pkg-sources moonbitlang/core/1:./1 -target wasm-gc -g -O0 -source-map
+            moonc build-package ./0/lib.mbt ./0/y.wasm-gc.mbt -o ./target/wasm-gc/debug/build/0/0.core -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core ./target/wasm-gc/debug/build/0/0.core -main moonbitlang/core/0 -o ./target/wasm-gc/debug/build/0/0.wasm -pkg-config-path ./0/moon.pkg.json -pkg-sources moonbitlang/core/0:./0 -target wasm-gc -g -O0 -source-map
         "#]],
     );
     check(
@@ -828,12 +828,12 @@ fn test_dummy_core() {
             ["build", "--dry-run", "--target", "js", "--sort-input"],
         ),
         expect![[r#"
-            moonc build-package ./1/lib.mbt ./1/x.js.mbt -o ./target/js/release/build/1/1.core -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target js -workspace-path .
-            moonc build-package ./2/lib.mbt -o ./target/js/release/build/2/2.core -pkg moonbitlang/core/2 -i ./target/js/release/build/1/1.mi:1 -pkg-sources moonbitlang/core/2:./2 -target js -workspace-path .
-            moonc link-core ./target/js/release/build/1/1.core ./target/js/release/build/2/2.core -main moonbitlang/core/2 -o ./target/js/release/build/2/2.js -pkg-config-path ./2/moon.pkg.json -pkg-sources moonbitlang/core/1:./1 -pkg-sources moonbitlang/core/2:./2 -target js
-            moonc link-core ./target/js/release/build/1/1.core -main moonbitlang/core/1 -o ./target/js/release/build/1/1.js -pkg-config-path ./1/moon.pkg.json -pkg-sources moonbitlang/core/1:./1 -target js
-            moonc build-package ./0/lib.mbt ./0/y.js.mbt -o ./target/js/release/build/0/0.core -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target js -workspace-path .
-            moonc link-core ./target/js/release/build/0/0.core -main moonbitlang/core/0 -o ./target/js/release/build/0/0.js -pkg-config-path ./0/moon.pkg.json -pkg-sources moonbitlang/core/0:./0 -target js
+            moonc build-package ./1/lib.mbt ./1/x.js.mbt -o ./target/js/debug/build/1/1.core -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target js -g -O0 -source-map -workspace-path .
+            moonc build-package ./2/lib.mbt -o ./target/js/debug/build/2/2.core -pkg moonbitlang/core/2 -i ./target/js/debug/build/1/1.mi:1 -pkg-sources moonbitlang/core/2:./2 -target js -g -O0 -source-map -workspace-path .
+            moonc link-core ./target/js/debug/build/1/1.core ./target/js/debug/build/2/2.core -main moonbitlang/core/2 -o ./target/js/debug/build/2/2.js -pkg-config-path ./2/moon.pkg.json -pkg-sources moonbitlang/core/1:./1 -pkg-sources moonbitlang/core/2:./2 -target js -g -O0 -source-map
+            moonc link-core ./target/js/debug/build/1/1.core -main moonbitlang/core/1 -o ./target/js/debug/build/1/1.js -pkg-config-path ./1/moon.pkg.json -pkg-sources moonbitlang/core/1:./1 -target js -g -O0 -source-map
+            moonc build-package ./0/lib.mbt ./0/y.js.mbt -o ./target/js/debug/build/0/0.core -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target js -g -O0 -source-map -workspace-path .
+            moonc link-core ./target/js/debug/build/0/0.core -main moonbitlang/core/0 -o ./target/js/debug/build/0/0.js -pkg-config-path ./0/moon.pkg.json -pkg-sources moonbitlang/core/0:./0 -target js -g -O0 -source-map
         "#]],
     );
 
@@ -1152,13 +1152,13 @@ fn test_dummy_core() {
     check(
         get_stdout(&dir, ["bundle", "--dry-run", "--sort-input"]),
         expect![[r#"
-            moonc build-package -o ./target/wasm-gc/release/bundle/prelude/prelude.core -pkg moonbitlang/core/prelude -pkg-sources moonbitlang/core/prelude:./prelude -target wasm-gc
-            moonc build-package -o ./target/wasm-gc/release/bundle/coverage/coverage.core -pkg moonbitlang/core/coverage -pkg-sources moonbitlang/core/coverage:./coverage -target wasm-gc
-            moonc build-package -o ./target/wasm-gc/release/bundle/iter/iter.core -pkg moonbitlang/core/iter -i ./target/wasm-gc/release/bundle/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/iter:./iter -target wasm-gc
-            moonc build-package -o ./target/wasm-gc/release/bundle/char/char.core -pkg moonbitlang/core/char -i ./target/wasm-gc/release/bundle/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/char:./char -target wasm-gc
-            moonc build-package ./1/lib.mbt ./1/x.wasm-gc.mbt -o ./target/wasm-gc/release/bundle/1/1.core -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target wasm-gc
-            moonc build-package ./2/lib.mbt -o ./target/wasm-gc/release/bundle/2/2.core -pkg moonbitlang/core/2 -i ./target/wasm-gc/release/bundle/1/1.mi:1 -pkg-sources moonbitlang/core/2:./2 -target wasm-gc
-            moonc build-package ./0/lib.mbt ./0/y.wasm-gc.mbt -o ./target/wasm-gc/release/bundle/0/0.core -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target wasm-gc
+            moonc build-package -o ./target/wasm-gc/release/bundle/prelude/prelude.core -pkg moonbitlang/core/prelude -pkg-sources moonbitlang/core/prelude:./prelude -target wasm-gc -g -source-map
+            moonc build-package -o ./target/wasm-gc/release/bundle/coverage/coverage.core -pkg moonbitlang/core/coverage -pkg-sources moonbitlang/core/coverage:./coverage -target wasm-gc -g -source-map
+            moonc build-package -o ./target/wasm-gc/release/bundle/iter/iter.core -pkg moonbitlang/core/iter -i ./target/wasm-gc/release/bundle/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/iter:./iter -target wasm-gc -g -source-map
+            moonc build-package -o ./target/wasm-gc/release/bundle/char/char.core -pkg moonbitlang/core/char -i ./target/wasm-gc/release/bundle/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/char:./char -target wasm-gc -g -source-map
+            moonc build-package ./1/lib.mbt ./1/x.wasm-gc.mbt -o ./target/wasm-gc/release/bundle/1/1.core -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target wasm-gc -g -source-map
+            moonc build-package ./2/lib.mbt -o ./target/wasm-gc/release/bundle/2/2.core -pkg moonbitlang/core/2 -i ./target/wasm-gc/release/bundle/1/1.mi:1 -pkg-sources moonbitlang/core/2:./2 -target wasm-gc -g -source-map
+            moonc build-package ./0/lib.mbt ./0/y.wasm-gc.mbt -o ./target/wasm-gc/release/bundle/0/0.core -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target wasm-gc -g -source-map
             moonc bundle-core ./target/wasm-gc/release/bundle/0/0.core ./target/wasm-gc/release/bundle/1/1.core ./target/wasm-gc/release/bundle/2/2.core ./target/wasm-gc/release/bundle/coverage/coverage.core ./target/wasm-gc/release/bundle/char/char.core ./target/wasm-gc/release/bundle/iter/iter.core ./target/wasm-gc/release/bundle/prelude/prelude.core -o ./target/wasm-gc/release/bundle/core.core
         "#]],
     );
@@ -1168,13 +1168,13 @@ fn test_dummy_core() {
             ["bundle", "--dry-run", "--target", "wasm", "--sort-input"],
         ),
         expect![[r#"
-            moonc build-package -o ./target/wasm/release/bundle/prelude/prelude.core -pkg moonbitlang/core/prelude -pkg-sources moonbitlang/core/prelude:./prelude -target wasm
-            moonc build-package -o ./target/wasm/release/bundle/coverage/coverage.core -pkg moonbitlang/core/coverage -pkg-sources moonbitlang/core/coverage:./coverage -target wasm
-            moonc build-package -o ./target/wasm/release/bundle/iter/iter.core -pkg moonbitlang/core/iter -i ./target/wasm/release/bundle/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/iter:./iter -target wasm
-            moonc build-package -o ./target/wasm/release/bundle/char/char.core -pkg moonbitlang/core/char -i ./target/wasm/release/bundle/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/char:./char -target wasm
-            moonc build-package ./1/lib.mbt ./1/x.wasm.mbt -o ./target/wasm/release/bundle/1/1.core -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target wasm
-            moonc build-package ./2/lib.mbt -o ./target/wasm/release/bundle/2/2.core -pkg moonbitlang/core/2 -i ./target/wasm/release/bundle/1/1.mi:1 -pkg-sources moonbitlang/core/2:./2 -target wasm
-            moonc build-package ./0/lib.mbt ./0/y.wasm.mbt -o ./target/wasm/release/bundle/0/0.core -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target wasm
+            moonc build-package -o ./target/wasm/release/bundle/prelude/prelude.core -pkg moonbitlang/core/prelude -pkg-sources moonbitlang/core/prelude:./prelude -target wasm -g
+            moonc build-package -o ./target/wasm/release/bundle/coverage/coverage.core -pkg moonbitlang/core/coverage -pkg-sources moonbitlang/core/coverage:./coverage -target wasm -g
+            moonc build-package -o ./target/wasm/release/bundle/iter/iter.core -pkg moonbitlang/core/iter -i ./target/wasm/release/bundle/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/iter:./iter -target wasm -g
+            moonc build-package -o ./target/wasm/release/bundle/char/char.core -pkg moonbitlang/core/char -i ./target/wasm/release/bundle/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/char:./char -target wasm -g
+            moonc build-package ./1/lib.mbt ./1/x.wasm.mbt -o ./target/wasm/release/bundle/1/1.core -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target wasm -g
+            moonc build-package ./2/lib.mbt -o ./target/wasm/release/bundle/2/2.core -pkg moonbitlang/core/2 -i ./target/wasm/release/bundle/1/1.mi:1 -pkg-sources moonbitlang/core/2:./2 -target wasm -g
+            moonc build-package ./0/lib.mbt ./0/y.wasm.mbt -o ./target/wasm/release/bundle/0/0.core -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target wasm -g
             moonc bundle-core ./target/wasm/release/bundle/0/0.core ./target/wasm/release/bundle/1/1.core ./target/wasm/release/bundle/2/2.core ./target/wasm/release/bundle/coverage/coverage.core ./target/wasm/release/bundle/char/char.core ./target/wasm/release/bundle/iter/iter.core ./target/wasm/release/bundle/prelude/prelude.core -o ./target/wasm/release/bundle/core.core
         "#]],
     );
@@ -1184,13 +1184,13 @@ fn test_dummy_core() {
             ["bundle", "--dry-run", "--target", "wasm-gc", "--sort-input"],
         ),
         expect![[r#"
-            moonc build-package -o ./target/wasm-gc/release/bundle/prelude/prelude.core -pkg moonbitlang/core/prelude -pkg-sources moonbitlang/core/prelude:./prelude -target wasm-gc
-            moonc build-package -o ./target/wasm-gc/release/bundle/coverage/coverage.core -pkg moonbitlang/core/coverage -pkg-sources moonbitlang/core/coverage:./coverage -target wasm-gc
-            moonc build-package -o ./target/wasm-gc/release/bundle/iter/iter.core -pkg moonbitlang/core/iter -i ./target/wasm-gc/release/bundle/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/iter:./iter -target wasm-gc
-            moonc build-package -o ./target/wasm-gc/release/bundle/char/char.core -pkg moonbitlang/core/char -i ./target/wasm-gc/release/bundle/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/char:./char -target wasm-gc
-            moonc build-package ./1/lib.mbt ./1/x.wasm-gc.mbt -o ./target/wasm-gc/release/bundle/1/1.core -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target wasm-gc
-            moonc build-package ./2/lib.mbt -o ./target/wasm-gc/release/bundle/2/2.core -pkg moonbitlang/core/2 -i ./target/wasm-gc/release/bundle/1/1.mi:1 -pkg-sources moonbitlang/core/2:./2 -target wasm-gc
-            moonc build-package ./0/lib.mbt ./0/y.wasm-gc.mbt -o ./target/wasm-gc/release/bundle/0/0.core -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target wasm-gc
+            moonc build-package -o ./target/wasm-gc/release/bundle/prelude/prelude.core -pkg moonbitlang/core/prelude -pkg-sources moonbitlang/core/prelude:./prelude -target wasm-gc -g -source-map
+            moonc build-package -o ./target/wasm-gc/release/bundle/coverage/coverage.core -pkg moonbitlang/core/coverage -pkg-sources moonbitlang/core/coverage:./coverage -target wasm-gc -g -source-map
+            moonc build-package -o ./target/wasm-gc/release/bundle/iter/iter.core -pkg moonbitlang/core/iter -i ./target/wasm-gc/release/bundle/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/iter:./iter -target wasm-gc -g -source-map
+            moonc build-package -o ./target/wasm-gc/release/bundle/char/char.core -pkg moonbitlang/core/char -i ./target/wasm-gc/release/bundle/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/char:./char -target wasm-gc -g -source-map
+            moonc build-package ./1/lib.mbt ./1/x.wasm-gc.mbt -o ./target/wasm-gc/release/bundle/1/1.core -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target wasm-gc -g -source-map
+            moonc build-package ./2/lib.mbt -o ./target/wasm-gc/release/bundle/2/2.core -pkg moonbitlang/core/2 -i ./target/wasm-gc/release/bundle/1/1.mi:1 -pkg-sources moonbitlang/core/2:./2 -target wasm-gc -g -source-map
+            moonc build-package ./0/lib.mbt ./0/y.wasm-gc.mbt -o ./target/wasm-gc/release/bundle/0/0.core -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target wasm-gc -g -source-map
             moonc bundle-core ./target/wasm-gc/release/bundle/0/0.core ./target/wasm-gc/release/bundle/1/1.core ./target/wasm-gc/release/bundle/2/2.core ./target/wasm-gc/release/bundle/coverage/coverage.core ./target/wasm-gc/release/bundle/char/char.core ./target/wasm-gc/release/bundle/iter/iter.core ./target/wasm-gc/release/bundle/prelude/prelude.core -o ./target/wasm-gc/release/bundle/core.core
         "#]],
     );
@@ -1200,13 +1200,13 @@ fn test_dummy_core() {
             ["bundle", "--dry-run", "--target", "js", "--sort-input"],
         ),
         expect![[r#"
-            moonc build-package -o ./target/js/release/bundle/prelude/prelude.core -pkg moonbitlang/core/prelude -pkg-sources moonbitlang/core/prelude:./prelude -target js
-            moonc build-package -o ./target/js/release/bundle/coverage/coverage.core -pkg moonbitlang/core/coverage -pkg-sources moonbitlang/core/coverage:./coverage -target js
-            moonc build-package -o ./target/js/release/bundle/iter/iter.core -pkg moonbitlang/core/iter -i ./target/js/release/bundle/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/iter:./iter -target js
-            moonc build-package -o ./target/js/release/bundle/char/char.core -pkg moonbitlang/core/char -i ./target/js/release/bundle/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/char:./char -target js
-            moonc build-package ./1/lib.mbt ./1/x.js.mbt -o ./target/js/release/bundle/1/1.core -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target js
-            moonc build-package ./2/lib.mbt -o ./target/js/release/bundle/2/2.core -pkg moonbitlang/core/2 -i ./target/js/release/bundle/1/1.mi:1 -pkg-sources moonbitlang/core/2:./2 -target js
-            moonc build-package ./0/lib.mbt ./0/y.js.mbt -o ./target/js/release/bundle/0/0.core -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target js
+            moonc build-package -o ./target/js/release/bundle/prelude/prelude.core -pkg moonbitlang/core/prelude -pkg-sources moonbitlang/core/prelude:./prelude -target js -g -source-map
+            moonc build-package -o ./target/js/release/bundle/coverage/coverage.core -pkg moonbitlang/core/coverage -pkg-sources moonbitlang/core/coverage:./coverage -target js -g -source-map
+            moonc build-package -o ./target/js/release/bundle/iter/iter.core -pkg moonbitlang/core/iter -i ./target/js/release/bundle/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/iter:./iter -target js -g -source-map
+            moonc build-package -o ./target/js/release/bundle/char/char.core -pkg moonbitlang/core/char -i ./target/js/release/bundle/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/char:./char -target js -g -source-map
+            moonc build-package ./1/lib.mbt ./1/x.js.mbt -o ./target/js/release/bundle/1/1.core -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target js -g -source-map
+            moonc build-package ./2/lib.mbt -o ./target/js/release/bundle/2/2.core -pkg moonbitlang/core/2 -i ./target/js/release/bundle/1/1.mi:1 -pkg-sources moonbitlang/core/2:./2 -target js -g -source-map
+            moonc build-package ./0/lib.mbt ./0/y.js.mbt -o ./target/js/release/bundle/0/0.core -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target js -g -source-map
             moonc bundle-core ./target/js/release/bundle/0/0.core ./target/js/release/bundle/1/1.core ./target/js/release/bundle/2/2.core ./target/js/release/bundle/coverage/coverage.core ./target/js/release/bundle/char/char.core ./target/js/release/bundle/iter/iter.core ./target/js/release/bundle/prelude/prelude.core -o ./target/js/release/bundle/core.core
         "#]],
     );
@@ -1223,37 +1223,37 @@ fn test_dummy_core() {
             ],
         ),
         expect![[r#"
-            moonc build-package -o ./target/wasm/release/bundle/prelude/prelude.core -pkg moonbitlang/core/prelude -pkg-sources moonbitlang/core/prelude:./prelude -target wasm
-            moonc build-package -o ./target/wasm/release/bundle/coverage/coverage.core -pkg moonbitlang/core/coverage -pkg-sources moonbitlang/core/coverage:./coverage -target wasm
-            moonc build-package -o ./target/wasm/release/bundle/iter/iter.core -pkg moonbitlang/core/iter -i ./target/wasm/release/bundle/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/iter:./iter -target wasm
-            moonc build-package -o ./target/wasm/release/bundle/char/char.core -pkg moonbitlang/core/char -i ./target/wasm/release/bundle/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/char:./char -target wasm
-            moonc build-package ./1/lib.mbt ./1/x.wasm.mbt -o ./target/wasm/release/bundle/1/1.core -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target wasm
-            moonc build-package ./2/lib.mbt -o ./target/wasm/release/bundle/2/2.core -pkg moonbitlang/core/2 -i ./target/wasm/release/bundle/1/1.mi:1 -pkg-sources moonbitlang/core/2:./2 -target wasm
-            moonc build-package ./0/lib.mbt ./0/y.wasm.mbt -o ./target/wasm/release/bundle/0/0.core -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target wasm
+            moonc build-package -o ./target/wasm/release/bundle/prelude/prelude.core -pkg moonbitlang/core/prelude -pkg-sources moonbitlang/core/prelude:./prelude -target wasm -g
+            moonc build-package -o ./target/wasm/release/bundle/coverage/coverage.core -pkg moonbitlang/core/coverage -pkg-sources moonbitlang/core/coverage:./coverage -target wasm -g
+            moonc build-package -o ./target/wasm/release/bundle/iter/iter.core -pkg moonbitlang/core/iter -i ./target/wasm/release/bundle/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/iter:./iter -target wasm -g
+            moonc build-package -o ./target/wasm/release/bundle/char/char.core -pkg moonbitlang/core/char -i ./target/wasm/release/bundle/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/char:./char -target wasm -g
+            moonc build-package ./1/lib.mbt ./1/x.wasm.mbt -o ./target/wasm/release/bundle/1/1.core -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target wasm -g
+            moonc build-package ./2/lib.mbt -o ./target/wasm/release/bundle/2/2.core -pkg moonbitlang/core/2 -i ./target/wasm/release/bundle/1/1.mi:1 -pkg-sources moonbitlang/core/2:./2 -target wasm -g
+            moonc build-package ./0/lib.mbt ./0/y.wasm.mbt -o ./target/wasm/release/bundle/0/0.core -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target wasm -g
             moonc bundle-core ./target/wasm/release/bundle/0/0.core ./target/wasm/release/bundle/1/1.core ./target/wasm/release/bundle/2/2.core ./target/wasm/release/bundle/coverage/coverage.core ./target/wasm/release/bundle/char/char.core ./target/wasm/release/bundle/iter/iter.core ./target/wasm/release/bundle/prelude/prelude.core -o ./target/wasm/release/bundle/core.core
-            moonc build-package -o ./target/wasm-gc/release/bundle/prelude/prelude.core -pkg moonbitlang/core/prelude -pkg-sources moonbitlang/core/prelude:./prelude -target wasm-gc
-            moonc build-package -o ./target/wasm-gc/release/bundle/coverage/coverage.core -pkg moonbitlang/core/coverage -pkg-sources moonbitlang/core/coverage:./coverage -target wasm-gc
-            moonc build-package -o ./target/wasm-gc/release/bundle/iter/iter.core -pkg moonbitlang/core/iter -i ./target/wasm-gc/release/bundle/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/iter:./iter -target wasm-gc
-            moonc build-package -o ./target/wasm-gc/release/bundle/char/char.core -pkg moonbitlang/core/char -i ./target/wasm-gc/release/bundle/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/char:./char -target wasm-gc
-            moonc build-package ./1/lib.mbt ./1/x.wasm-gc.mbt -o ./target/wasm-gc/release/bundle/1/1.core -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target wasm-gc
-            moonc build-package ./2/lib.mbt -o ./target/wasm-gc/release/bundle/2/2.core -pkg moonbitlang/core/2 -i ./target/wasm-gc/release/bundle/1/1.mi:1 -pkg-sources moonbitlang/core/2:./2 -target wasm-gc
-            moonc build-package ./0/lib.mbt ./0/y.wasm-gc.mbt -o ./target/wasm-gc/release/bundle/0/0.core -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target wasm-gc
+            moonc build-package -o ./target/wasm-gc/release/bundle/prelude/prelude.core -pkg moonbitlang/core/prelude -pkg-sources moonbitlang/core/prelude:./prelude -target wasm-gc -g -source-map
+            moonc build-package -o ./target/wasm-gc/release/bundle/coverage/coverage.core -pkg moonbitlang/core/coverage -pkg-sources moonbitlang/core/coverage:./coverage -target wasm-gc -g -source-map
+            moonc build-package -o ./target/wasm-gc/release/bundle/iter/iter.core -pkg moonbitlang/core/iter -i ./target/wasm-gc/release/bundle/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/iter:./iter -target wasm-gc -g -source-map
+            moonc build-package -o ./target/wasm-gc/release/bundle/char/char.core -pkg moonbitlang/core/char -i ./target/wasm-gc/release/bundle/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/char:./char -target wasm-gc -g -source-map
+            moonc build-package ./1/lib.mbt ./1/x.wasm-gc.mbt -o ./target/wasm-gc/release/bundle/1/1.core -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target wasm-gc -g -source-map
+            moonc build-package ./2/lib.mbt -o ./target/wasm-gc/release/bundle/2/2.core -pkg moonbitlang/core/2 -i ./target/wasm-gc/release/bundle/1/1.mi:1 -pkg-sources moonbitlang/core/2:./2 -target wasm-gc -g -source-map
+            moonc build-package ./0/lib.mbt ./0/y.wasm-gc.mbt -o ./target/wasm-gc/release/bundle/0/0.core -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target wasm-gc -g -source-map
             moonc bundle-core ./target/wasm-gc/release/bundle/0/0.core ./target/wasm-gc/release/bundle/1/1.core ./target/wasm-gc/release/bundle/2/2.core ./target/wasm-gc/release/bundle/coverage/coverage.core ./target/wasm-gc/release/bundle/char/char.core ./target/wasm-gc/release/bundle/iter/iter.core ./target/wasm-gc/release/bundle/prelude/prelude.core -o ./target/wasm-gc/release/bundle/core.core
-            moonc build-package -o ./target/js/release/bundle/prelude/prelude.core -pkg moonbitlang/core/prelude -pkg-sources moonbitlang/core/prelude:./prelude -target js
-            moonc build-package -o ./target/js/release/bundle/coverage/coverage.core -pkg moonbitlang/core/coverage -pkg-sources moonbitlang/core/coverage:./coverage -target js
-            moonc build-package -o ./target/js/release/bundle/iter/iter.core -pkg moonbitlang/core/iter -i ./target/js/release/bundle/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/iter:./iter -target js
-            moonc build-package -o ./target/js/release/bundle/char/char.core -pkg moonbitlang/core/char -i ./target/js/release/bundle/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/char:./char -target js
-            moonc build-package ./1/lib.mbt ./1/x.js.mbt -o ./target/js/release/bundle/1/1.core -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target js
-            moonc build-package ./2/lib.mbt -o ./target/js/release/bundle/2/2.core -pkg moonbitlang/core/2 -i ./target/js/release/bundle/1/1.mi:1 -pkg-sources moonbitlang/core/2:./2 -target js
-            moonc build-package ./0/lib.mbt ./0/y.js.mbt -o ./target/js/release/bundle/0/0.core -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target js
+            moonc build-package -o ./target/js/release/bundle/prelude/prelude.core -pkg moonbitlang/core/prelude -pkg-sources moonbitlang/core/prelude:./prelude -target js -g -source-map
+            moonc build-package -o ./target/js/release/bundle/coverage/coverage.core -pkg moonbitlang/core/coverage -pkg-sources moonbitlang/core/coverage:./coverage -target js -g -source-map
+            moonc build-package -o ./target/js/release/bundle/iter/iter.core -pkg moonbitlang/core/iter -i ./target/js/release/bundle/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/iter:./iter -target js -g -source-map
+            moonc build-package -o ./target/js/release/bundle/char/char.core -pkg moonbitlang/core/char -i ./target/js/release/bundle/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/char:./char -target js -g -source-map
+            moonc build-package ./1/lib.mbt ./1/x.js.mbt -o ./target/js/release/bundle/1/1.core -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target js -g -source-map
+            moonc build-package ./2/lib.mbt -o ./target/js/release/bundle/2/2.core -pkg moonbitlang/core/2 -i ./target/js/release/bundle/1/1.mi:1 -pkg-sources moonbitlang/core/2:./2 -target js -g -source-map
+            moonc build-package ./0/lib.mbt ./0/y.js.mbt -o ./target/js/release/bundle/0/0.core -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target js -g -source-map
             moonc bundle-core ./target/js/release/bundle/0/0.core ./target/js/release/bundle/1/1.core ./target/js/release/bundle/2/2.core ./target/js/release/bundle/coverage/coverage.core ./target/js/release/bundle/char/char.core ./target/js/release/bundle/iter/iter.core ./target/js/release/bundle/prelude/prelude.core -o ./target/js/release/bundle/core.core
-            moonc build-package -o ./target/native/release/bundle/prelude/prelude.core -pkg moonbitlang/core/prelude -pkg-sources moonbitlang/core/prelude:./prelude -target native
-            moonc build-package -o ./target/native/release/bundle/coverage/coverage.core -pkg moonbitlang/core/coverage -pkg-sources moonbitlang/core/coverage:./coverage -target native
-            moonc build-package -o ./target/native/release/bundle/iter/iter.core -pkg moonbitlang/core/iter -i ./target/native/release/bundle/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/iter:./iter -target native
-            moonc build-package -o ./target/native/release/bundle/char/char.core -pkg moonbitlang/core/char -i ./target/native/release/bundle/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/char:./char -target native
-            moonc build-package ./1/lib.mbt -o ./target/native/release/bundle/1/1.core -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target native
-            moonc build-package ./2/lib.mbt -o ./target/native/release/bundle/2/2.core -pkg moonbitlang/core/2 -i ./target/native/release/bundle/1/1.mi:1 -pkg-sources moonbitlang/core/2:./2 -target native
-            moonc build-package ./0/lib.mbt -o ./target/native/release/bundle/0/0.core -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target native
+            moonc build-package -o ./target/native/release/bundle/prelude/prelude.core -pkg moonbitlang/core/prelude -pkg-sources moonbitlang/core/prelude:./prelude -target native -g
+            moonc build-package -o ./target/native/release/bundle/coverage/coverage.core -pkg moonbitlang/core/coverage -pkg-sources moonbitlang/core/coverage:./coverage -target native -g
+            moonc build-package -o ./target/native/release/bundle/iter/iter.core -pkg moonbitlang/core/iter -i ./target/native/release/bundle/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/iter:./iter -target native -g
+            moonc build-package -o ./target/native/release/bundle/char/char.core -pkg moonbitlang/core/char -i ./target/native/release/bundle/coverage/coverage.mi:coverage -pkg-sources moonbitlang/core/char:./char -target native -g
+            moonc build-package ./1/lib.mbt -o ./target/native/release/bundle/1/1.core -pkg moonbitlang/core/1 -pkg-sources moonbitlang/core/1:./1 -target native -g
+            moonc build-package ./2/lib.mbt -o ./target/native/release/bundle/2/2.core -pkg moonbitlang/core/2 -i ./target/native/release/bundle/1/1.mi:1 -pkg-sources moonbitlang/core/2:./2 -target native -g
+            moonc build-package ./0/lib.mbt -o ./target/native/release/bundle/0/0.core -pkg moonbitlang/core/0 -pkg-sources moonbitlang/core/0:./0 -target native -g
             moonc bundle-core ./target/native/release/bundle/0/0.core ./target/native/release/bundle/1/1.core ./target/native/release/bundle/2/2.core ./target/native/release/bundle/coverage/coverage.core ./target/native/release/bundle/char/char.core ./target/native/release/bundle/iter/iter.core ./target/native/release/bundle/prelude/prelude.core -o ./target/native/release/bundle/core.core
         "#]],
     );
diff --git a/crates/moon/tests/test_cases/extra_flags/mod.rs b/crates/moon/tests/test_cases/extra_flags/mod.rs
index 37df75bf8..2cfe761ea 100644
--- a/crates/moon/tests/test_cases/extra_flags/mod.rs
+++ b/crates/moon/tests/test_cases/extra_flags/mod.rs
@@ -25,9 +25,9 @@ fn test_extra_flags() {
     check(
         get_stdout(&dir, ["build", "--dry-run", "--nostd"]),
         expect![[r#"
-            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/release/build/lib/lib.core -pkg hello/lib -pkg-sources hello/lib:./lib -target wasm-gc -g -no-builtin -workspace-path .
-            moonc build-package ./main/main.mbt -o ./target/wasm-gc/release/build/main/main.core -pkg hello/main -is-main -i ./target/wasm-gc/release/build/lib/lib.mi:lib -pkg-sources hello/main:./main -target wasm-gc -g -no-builtin -workspace-path .
-            moonc link-core ./target/wasm-gc/release/build/lib/lib.core ./target/wasm-gc/release/build/main/main.core -main hello/main -o ./target/wasm-gc/release/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources hello/lib:./lib -pkg-sources hello/main:./main -target wasm-gc -no-builtin
+            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/debug/build/lib/lib.core -pkg hello/lib -pkg-sources hello/lib:./lib -target wasm-gc -g -O0 -source-map -g -no-builtin -workspace-path .
+            moonc build-package ./main/main.mbt -o ./target/wasm-gc/debug/build/main/main.core -pkg hello/main -is-main -i ./target/wasm-gc/debug/build/lib/lib.mi:lib -pkg-sources hello/main:./main -target wasm-gc -g -O0 -source-map -g -no-builtin -workspace-path .
+            moonc link-core ./target/wasm-gc/debug/build/lib/lib.core ./target/wasm-gc/debug/build/main/main.core -main hello/main -o ./target/wasm-gc/debug/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources hello/lib:./lib -pkg-sources hello/main:./main -target wasm-gc -g -O0 -source-map -no-builtin
         "#]],
     );
     check(
@@ -42,10 +42,10 @@ fn test_extra_flags() {
     check(
         get_stdout(&dir, ["run", "main", "--dry-run", "--nostd"]),
         expect![[r#"
-            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/release/build/lib/lib.core -pkg hello/lib -pkg-sources hello/lib:./lib -target wasm-gc -g -no-builtin -workspace-path .
-            moonc build-package ./main/main.mbt -o ./target/wasm-gc/release/build/main/main.core -pkg hello/main -is-main -i ./target/wasm-gc/release/build/lib/lib.mi:lib -pkg-sources hello/main:./main -target wasm-gc -g -no-builtin -workspace-path .
-            moonc link-core ./target/wasm-gc/release/build/lib/lib.core ./target/wasm-gc/release/build/main/main.core -main hello/main -o ./target/wasm-gc/release/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources hello/lib:./lib -pkg-sources hello/main:./main -target wasm-gc -no-builtin
-            moonrun ./target/wasm-gc/release/build/main/main.wasm
+            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/debug/build/lib/lib.core -pkg hello/lib -pkg-sources hello/lib:./lib -target wasm-gc -g -O0 -source-map -g -no-builtin -workspace-path .
+            moonc build-package ./main/main.mbt -o ./target/wasm-gc/debug/build/main/main.core -pkg hello/main -is-main -i ./target/wasm-gc/debug/build/lib/lib.mi:lib -pkg-sources hello/main:./main -target wasm-gc -g -O0 -source-map -g -no-builtin -workspace-path .
+            moonc link-core ./target/wasm-gc/debug/build/lib/lib.core ./target/wasm-gc/debug/build/main/main.core -main hello/main -o ./target/wasm-gc/debug/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources hello/lib:./lib -pkg-sources hello/main:./main -target wasm-gc -g -O0 -source-map -no-builtin
+            moonrun ./target/wasm-gc/debug/build/main/main.wasm
         "#]],
     );
     check(
diff --git a/crates/moon/tests/test_cases/mod.rs b/crates/moon/tests/test_cases/mod.rs
index fbe1c67ed..16bf9795e 100644
--- a/crates/moon/tests/test_cases/mod.rs
+++ b/crates/moon/tests/test_cases/mod.rs
@@ -71,10 +71,10 @@ fn test_need_link() {
     check(
         get_stdout(&dir, ["build", "--dry-run", "--nostd", "--sort-input"]),
         expect![[r#"
-            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/release/build/lib/lib.core -pkg username/hello/lib -pkg-sources username/hello/lib:./lib -target wasm-gc -workspace-path .
-            moonc build-package ./main/main.mbt -o ./target/wasm-gc/release/build/main/main.core -pkg username/hello/main -is-main -i ./target/wasm-gc/release/build/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm-gc -workspace-path .
-            moonc link-core ./target/wasm-gc/release/build/lib/lib.core ./target/wasm-gc/release/build/main/main.core -main username/hello/main -o ./target/wasm-gc/release/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/main:./main -target wasm-gc
-            moonc link-core ./target/wasm-gc/release/build/lib/lib.core -main username/hello/lib -o ./target/wasm-gc/release/build/lib/lib.wasm -pkg-config-path ./lib/moon.pkg.json -pkg-sources username/hello/lib:./lib -target wasm-gc
+            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/debug/build/lib/lib.core -pkg username/hello/lib -pkg-sources username/hello/lib:./lib -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./main/main.mbt -o ./target/wasm-gc/debug/build/main/main.core -pkg username/hello/main -is-main -i ./target/wasm-gc/debug/build/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core ./target/wasm-gc/debug/build/lib/lib.core ./target/wasm-gc/debug/build/main/main.core -main username/hello/main -o ./target/wasm-gc/debug/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/main:./main -target wasm-gc -g -O0 -source-map
+            moonc link-core ./target/wasm-gc/debug/build/lib/lib.core -main username/hello/lib -o ./target/wasm-gc/debug/build/lib/lib.wasm -pkg-config-path ./lib/moon.pkg.json -pkg-sources username/hello/lib:./lib -target wasm-gc -g -O0 -source-map
         "#]],
     );
 }
@@ -124,23 +124,23 @@ fn test_moon_test_release() {
     check(
         get_stdout(&dir, ["test", "--release", "--dry-run", "--sort-input"]),
         expect![[r#"
-            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/release/test/lib/lib.core -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./lib -target wasm-gc -source-map -workspace-path .
+            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/release/test/lib/lib.core -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./lib -target wasm-gc -g -source-map -workspace-path .
             moon generate-test-driver --output-driver ./target/wasm-gc/release/test/main/__generated_driver_for_internal_test.mbt --output-metadata ./target/wasm-gc/release/test/main/__internal_test_info.json ./main/main.mbt --target wasm-gc --pkg-name username/hello/main --driver-kind internal
-            moonc build-package ./main/main.mbt ./target/wasm-gc/release/test/main/__generated_driver_for_internal_test.mbt -o ./target/wasm-gc/release/test/main/main.internal_test.core -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/test/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm-gc -source-map -no-mi -test-mode -workspace-path .
-            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/release/test/lib/lib.core ./target/wasm-gc/release/test/main/main.internal_test.core -main username/hello/main -o ./target/wasm-gc/release/test/main/main.internal_test.wasm -test-mode -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -exported_functions moonbit_test_driver_internal_execute,moonbit_test_driver_finish -target wasm-gc -source-map
-            moonc build-package ./main/main.mbt -o ./target/wasm-gc/release/test/main/main.core -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/test/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm-gc -source-map -workspace-path .
+            moonc build-package ./main/main.mbt ./target/wasm-gc/release/test/main/__generated_driver_for_internal_test.mbt -o ./target/wasm-gc/release/test/main/main.internal_test.core -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/test/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm-gc -g -source-map -no-mi -test-mode -workspace-path .
+            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/release/test/lib/lib.core ./target/wasm-gc/release/test/main/main.internal_test.core -main username/hello/main -o ./target/wasm-gc/release/test/main/main.internal_test.wasm -test-mode -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -exported_functions moonbit_test_driver_internal_execute,moonbit_test_driver_finish -target wasm-gc -g -source-map
+            moonc build-package ./main/main.mbt -o ./target/wasm-gc/release/test/main/main.core -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/test/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm-gc -g -source-map -workspace-path .
             moon generate-test-driver --output-driver ./target/wasm-gc/release/test/main/__generated_driver_for_blackbox_test.mbt --output-metadata ./target/wasm-gc/release/test/main/__blackbox_test_info.json --doctest-only ./main/main.mbt --target wasm-gc --pkg-name username/hello/main --driver-kind blackbox
-            moonc build-package ./target/wasm-gc/release/test/main/__generated_driver_for_blackbox_test.mbt -doctest-only ./main/main.mbt -o ./target/wasm-gc/release/test/main/main.blackbox_test.core -pkg username/hello/main_blackbox_test -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/test/main/main.mi:main -i ./target/wasm-gc/release/test/lib/lib.mi:lib -pkg-sources username/hello/main_blackbox_test:./main -target wasm-gc -source-map -blackbox-test -include-doctests -no-mi -test-mode -workspace-path .
-            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/release/test/lib/lib.core ./target/wasm-gc/release/test/main/main.core ./target/wasm-gc/release/test/main/main.blackbox_test.core -main username/hello/main_blackbox_test -o ./target/wasm-gc/release/test/main/main.blackbox_test.wasm -test-mode -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/main:./main -pkg-sources username/hello/main_blackbox_test:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -exported_functions moonbit_test_driver_internal_execute,moonbit_test_driver_finish -target wasm-gc -source-map
+            moonc build-package ./target/wasm-gc/release/test/main/__generated_driver_for_blackbox_test.mbt -doctest-only ./main/main.mbt -o ./target/wasm-gc/release/test/main/main.blackbox_test.core -pkg username/hello/main_blackbox_test -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/test/main/main.mi:main -i ./target/wasm-gc/release/test/lib/lib.mi:lib -pkg-sources username/hello/main_blackbox_test:./main -target wasm-gc -g -source-map -blackbox-test -include-doctests -no-mi -test-mode -workspace-path .
+            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/release/test/lib/lib.core ./target/wasm-gc/release/test/main/main.core ./target/wasm-gc/release/test/main/main.blackbox_test.core -main username/hello/main_blackbox_test -o ./target/wasm-gc/release/test/main/main.blackbox_test.wasm -test-mode -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/main:./main -pkg-sources username/hello/main_blackbox_test:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -exported_functions moonbit_test_driver_internal_execute,moonbit_test_driver_finish -target wasm-gc -g -source-map
             moon generate-test-driver --output-driver ./target/wasm-gc/release/test/lib/__generated_driver_for_whitebox_test.mbt --output-metadata ./target/wasm-gc/release/test/lib/__whitebox_test_info.json ./lib/hello_wbtest.mbt --target wasm-gc --pkg-name username/hello/lib --driver-kind whitebox
-            moonc build-package ./lib/hello.mbt ./lib/hello_wbtest.mbt ./target/wasm-gc/release/test/lib/__generated_driver_for_whitebox_test.mbt -o ./target/wasm-gc/release/test/lib/lib.whitebox_test.core -pkg username/hello/lib -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./lib -target wasm-gc -source-map -whitebox-test -no-mi -test-mode -workspace-path .
-            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/release/test/lib/lib.whitebox_test.core -main username/hello/lib -o ./target/wasm-gc/release/test/lib/lib.whitebox_test.wasm -test-mode -pkg-config-path ./lib/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -exported_functions moonbit_test_driver_internal_execute,moonbit_test_driver_finish -target wasm-gc -source-map
+            moonc build-package ./lib/hello.mbt ./lib/hello_wbtest.mbt ./target/wasm-gc/release/test/lib/__generated_driver_for_whitebox_test.mbt -o ./target/wasm-gc/release/test/lib/lib.whitebox_test.core -pkg username/hello/lib -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./lib -target wasm-gc -g -source-map -whitebox-test -no-mi -test-mode -workspace-path .
+            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/release/test/lib/lib.whitebox_test.core -main username/hello/lib -o ./target/wasm-gc/release/test/lib/lib.whitebox_test.wasm -test-mode -pkg-config-path ./lib/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -exported_functions moonbit_test_driver_internal_execute,moonbit_test_driver_finish -target wasm-gc -g -source-map
             moon generate-test-driver --output-driver ./target/wasm-gc/release/test/lib/__generated_driver_for_internal_test.mbt --output-metadata ./target/wasm-gc/release/test/lib/__internal_test_info.json ./lib/hello.mbt --target wasm-gc --pkg-name username/hello/lib --driver-kind internal
-            moonc build-package ./lib/hello.mbt ./target/wasm-gc/release/test/lib/__generated_driver_for_internal_test.mbt -o ./target/wasm-gc/release/test/lib/lib.internal_test.core -pkg username/hello/lib -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./lib -target wasm-gc -source-map -no-mi -test-mode -workspace-path .
-            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/release/test/lib/lib.internal_test.core -main username/hello/lib -o ./target/wasm-gc/release/test/lib/lib.internal_test.wasm -test-mode -pkg-config-path ./lib/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -exported_functions moonbit_test_driver_internal_execute,moonbit_test_driver_finish -target wasm-gc -source-map
+            moonc build-package ./lib/hello.mbt ./target/wasm-gc/release/test/lib/__generated_driver_for_internal_test.mbt -o ./target/wasm-gc/release/test/lib/lib.internal_test.core -pkg username/hello/lib -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./lib -target wasm-gc -g -source-map -no-mi -test-mode -workspace-path .
+            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/release/test/lib/lib.internal_test.core -main username/hello/lib -o ./target/wasm-gc/release/test/lib/lib.internal_test.wasm -test-mode -pkg-config-path ./lib/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -exported_functions moonbit_test_driver_internal_execute,moonbit_test_driver_finish -target wasm-gc -g -source-map
             moon generate-test-driver --output-driver ./target/wasm-gc/release/test/lib/__generated_driver_for_blackbox_test.mbt --output-metadata ./target/wasm-gc/release/test/lib/__blackbox_test_info.json --doctest-only ./lib/hello.mbt --target wasm-gc --pkg-name username/hello/lib --driver-kind blackbox
-            moonc build-package ./target/wasm-gc/release/test/lib/__generated_driver_for_blackbox_test.mbt -doctest-only ./lib/hello.mbt -o ./target/wasm-gc/release/test/lib/lib.blackbox_test.core -pkg username/hello/lib_blackbox_test -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/test/lib/lib.mi:lib -pkg-sources username/hello/lib_blackbox_test:./lib -target wasm-gc -source-map -blackbox-test -include-doctests -no-mi -test-mode -workspace-path .
-            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/release/test/lib/lib.core ./target/wasm-gc/release/test/lib/lib.blackbox_test.core -main username/hello/lib_blackbox_test -o ./target/wasm-gc/release/test/lib/lib.blackbox_test.wasm -test-mode -pkg-config-path ./lib/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/lib_blackbox_test:./lib -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -exported_functions moonbit_test_driver_internal_execute,moonbit_test_driver_finish -target wasm-gc -source-map
+            moonc build-package ./target/wasm-gc/release/test/lib/__generated_driver_for_blackbox_test.mbt -doctest-only ./lib/hello.mbt -o ./target/wasm-gc/release/test/lib/lib.blackbox_test.core -pkg username/hello/lib_blackbox_test -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/test/lib/lib.mi:lib -pkg-sources username/hello/lib_blackbox_test:./lib -target wasm-gc -g -source-map -blackbox-test -include-doctests -no-mi -test-mode -workspace-path .
+            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/release/test/lib/lib.core ./target/wasm-gc/release/test/lib/lib.blackbox_test.core -main username/hello/lib_blackbox_test -o ./target/wasm-gc/release/test/lib/lib.blackbox_test.wasm -test-mode -pkg-config-path ./lib/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/lib_blackbox_test:./lib -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -exported_functions moonbit_test_driver_internal_execute,moonbit_test_driver_finish -target wasm-gc -g -source-map
         "#]],
     );
 
@@ -162,11 +162,11 @@ fn test_moon_test_release() {
 fn test_backtrace() {
     let dir = TestDir::new("backtrace.in");
 
-    let out = get_err_stderr(&dir, ["run", "main"]);
-    assert!(!out.contains("main.foo"));
-    assert!(!out.contains("main.bar"));
+    let out = get_err_stderr(&dir, ["run", "main", "--release"]);
+    assert!(out.contains("main.foo"));
+    assert!(out.contains("main.bar"));
 
-    let out = get_err_stderr(&dir, ["run", "main", "--debug"]);
+    let out = get_err_stderr(&dir, ["run", "main"]);
     assert!(out.contains("main.foo"));
     assert!(out.contains("main.bar"));
 }
@@ -178,7 +178,7 @@ fn test_export_memory_name() {
     let content = std::fs::read_to_string(
         dir.join("target")
             .join("wasm-gc")
-            .join("release")
+            .join("debug")
             .join("build")
             .join("main")
             .join("main.wat"),
@@ -189,9 +189,9 @@ fn test_export_memory_name() {
     check(
         get_stdout(&dir, ["build", "--dry-run", "--sort-input"]),
         expect![[r#"
-            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/release/build/lib/lib.core -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./lib -target wasm-gc -workspace-path .
-            moonc build-package ./main/main.mbt -o ./target/wasm-gc/release/build/main/main.core -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/build/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm-gc -workspace-path .
-            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/release/build/lib/lib.core ./target/wasm-gc/release/build/main/main.core -main username/hello/main -o ./target/wasm-gc/release/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc -export-memory-name awesome_memory
+            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/debug/build/lib/lib.core -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./lib -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./main/main.mbt -o ./target/wasm-gc/debug/build/main/main.core -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/build/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/debug/build/lib/lib.core ./target/wasm-gc/debug/build/main/main.core -main username/hello/main -o ./target/wasm-gc/debug/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc -g -O0 -source-map -export-memory-name awesome_memory
         "#]],
     );
 
@@ -201,9 +201,9 @@ fn test_export_memory_name() {
             ["build", "--dry-run", "--sort-input", "--target", "wasm"],
         ),
         expect![[r#"
-            moonc build-package ./lib/hello.mbt -o ./target/wasm/release/build/lib/lib.core -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm/release/bundle -pkg-sources username/hello/lib:./lib -target wasm -workspace-path .
-            moonc build-package ./main/main.mbt -o ./target/wasm/release/build/main/main.core -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm/release/bundle -i ./target/wasm/release/build/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm -workspace-path .
-            moonc link-core $MOON_HOME/lib/core/target/wasm/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm/release/bundle/core.core ./target/wasm/release/build/lib/lib.core ./target/wasm/release/build/main/main.core -main username/hello/main -o ./target/wasm/release/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm -export-memory-name awesome_memory
+            moonc build-package ./lib/hello.mbt -o ./target/wasm/debug/build/lib/lib.core -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm/release/bundle -pkg-sources username/hello/lib:./lib -target wasm -g -O0 -workspace-path .
+            moonc build-package ./main/main.mbt -o ./target/wasm/debug/build/main/main.core -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm/release/bundle -i ./target/wasm/debug/build/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm -g -O0 -workspace-path .
+            moonc link-core $MOON_HOME/lib/core/target/wasm/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm/release/bundle/core.core ./target/wasm/debug/build/lib/lib.core ./target/wasm/debug/build/main/main.core -main username/hello/main -o ./target/wasm/debug/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm -g -O0 -export-memory-name awesome_memory
         "#]],
     );
 
@@ -213,9 +213,9 @@ fn test_export_memory_name() {
             ["build", "--dry-run", "--sort-input", "--target", "js"],
         ),
         expect![[r#"
-            moonc build-package ./lib/hello.mbt -o ./target/js/release/build/lib/lib.core -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/js/release/bundle -pkg-sources username/hello/lib:./lib -target js -workspace-path .
-            moonc build-package ./main/main.mbt -o ./target/js/release/build/main/main.core -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/js/release/bundle -i ./target/js/release/build/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target js -workspace-path .
-            moonc link-core $MOON_HOME/lib/core/target/js/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/js/release/bundle/core.core ./target/js/release/build/lib/lib.core ./target/js/release/build/main/main.core -main username/hello/main -o ./target/js/release/build/main/main.js -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target js
+            moonc build-package ./lib/hello.mbt -o ./target/js/debug/build/lib/lib.core -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/js/release/bundle -pkg-sources username/hello/lib:./lib -target js -g -O0 -source-map -workspace-path .
+            moonc build-package ./main/main.mbt -o ./target/js/debug/build/main/main.core -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/js/release/bundle -i ./target/js/debug/build/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target js -g -O0 -source-map -workspace-path .
+            moonc link-core $MOON_HOME/lib/core/target/js/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/js/release/bundle/core.core ./target/js/debug/build/lib/lib.core ./target/js/debug/build/main/main.core -main username/hello/main -o ./target/js/debug/build/main/main.js -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target js -g -O0 -source-map
         "#]],
     );
 }
@@ -226,9 +226,9 @@ fn test_no_block_params() {
     check(
         get_stdout(&dir, ["build", "--dry-run", "--sort-input"]),
         expect![[r#"
-            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/release/build/lib/lib.core -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./lib -target wasm-gc -workspace-path .
-            moonc build-package ./main/main.mbt -o ./target/wasm-gc/release/build/main/main.core -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/build/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm-gc -workspace-path .
-            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/release/build/lib/lib.core ./target/wasm-gc/release/build/main/main.core -main username/hello/main -o ./target/wasm-gc/release/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc -no-block-params
+            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/debug/build/lib/lib.core -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./lib -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./main/main.mbt -o ./target/wasm-gc/debug/build/main/main.core -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/build/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/debug/build/lib/lib.core ./target/wasm-gc/debug/build/main/main.core -main username/hello/main -o ./target/wasm-gc/debug/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc -g -O0 -source-map -no-block-params
         "#]],
     );
 
@@ -238,9 +238,9 @@ fn test_no_block_params() {
             ["build", "--dry-run", "--sort-input", "--target", "wasm"],
         ),
         expect![[r#"
-            moonc build-package ./lib/hello.mbt -o ./target/wasm/release/build/lib/lib.core -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm/release/bundle -pkg-sources username/hello/lib:./lib -target wasm -workspace-path .
-            moonc build-package ./main/main.mbt -o ./target/wasm/release/build/main/main.core -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm/release/bundle -i ./target/wasm/release/build/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm -workspace-path .
-            moonc link-core $MOON_HOME/lib/core/target/wasm/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm/release/bundle/core.core ./target/wasm/release/build/lib/lib.core ./target/wasm/release/build/main/main.core -main username/hello/main -o ./target/wasm/release/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm -no-block-params
+            moonc build-package ./lib/hello.mbt -o ./target/wasm/debug/build/lib/lib.core -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm/release/bundle -pkg-sources username/hello/lib:./lib -target wasm -g -O0 -workspace-path .
+            moonc build-package ./main/main.mbt -o ./target/wasm/debug/build/main/main.core -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm/release/bundle -i ./target/wasm/debug/build/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm -g -O0 -workspace-path .
+            moonc link-core $MOON_HOME/lib/core/target/wasm/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm/release/bundle/core.core ./target/wasm/debug/build/lib/lib.core ./target/wasm/debug/build/main/main.core -main username/hello/main -o ./target/wasm/debug/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm -g -O0 -no-block-params
         "#]],
     );
 
@@ -250,9 +250,9 @@ fn test_no_block_params() {
             ["build", "--dry-run", "--sort-input", "--target", "js"],
         ),
         expect![[r#"
-            moonc build-package ./lib/hello.mbt -o ./target/js/release/build/lib/lib.core -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/js/release/bundle -pkg-sources username/hello/lib:./lib -target js -workspace-path .
-            moonc build-package ./main/main.mbt -o ./target/js/release/build/main/main.core -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/js/release/bundle -i ./target/js/release/build/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target js -workspace-path .
-            moonc link-core $MOON_HOME/lib/core/target/js/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/js/release/bundle/core.core ./target/js/release/build/lib/lib.core ./target/js/release/build/main/main.core -main username/hello/main -o ./target/js/release/build/main/main.js -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target js
+            moonc build-package ./lib/hello.mbt -o ./target/js/debug/build/lib/lib.core -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/js/release/bundle -pkg-sources username/hello/lib:./lib -target js -g -O0 -source-map -workspace-path .
+            moonc build-package ./main/main.mbt -o ./target/js/debug/build/main/main.core -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/js/release/bundle -i ./target/js/debug/build/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target js -g -O0 -source-map -workspace-path .
+            moonc link-core $MOON_HOME/lib/core/target/js/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/js/release/bundle/core.core ./target/js/debug/build/lib/lib.core ./target/js/debug/build/main/main.core -main username/hello/main -o ./target/js/debug/build/main/main.js -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target js -g -O0 -source-map
         "#]],
     );
 }
@@ -544,9 +544,9 @@ fn whitespace_test() {
     check(
         get_stdout(&dir, ["build", "--dry-run", "--nostd"]),
         expect![[r#"
-            moonc build-package "./main lib/hello.mbt" -o "./target/wasm-gc/release/build/main lib/main lib.core" -pkg "username/hello/main lib" -pkg-sources "username/hello/main lib:./main lib" -target wasm-gc -workspace-path .
-            moonc build-package "./main exe/main.mbt" -o "./target/wasm-gc/release/build/main exe/main exe.core" -pkg "username/hello/main exe" -is-main -i "./target/wasm-gc/release/build/main lib/main lib.mi:lib" -pkg-sources "username/hello/main exe:./main exe" -target wasm-gc -workspace-path .
-            moonc link-core "./target/wasm-gc/release/build/main lib/main lib.core" "./target/wasm-gc/release/build/main exe/main exe.core" -main "username/hello/main exe" -o "./target/wasm-gc/release/build/main exe/main exe.wasm" -pkg-config-path "./main exe/moon.pkg.json" -pkg-sources "username/hello/main lib:./main lib" -pkg-sources "username/hello/main exe:./main exe" -target wasm-gc
+            moonc build-package "./main lib/hello.mbt" -o "./target/wasm-gc/debug/build/main lib/main lib.core" -pkg "username/hello/main lib" -pkg-sources "username/hello/main lib:./main lib" -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package "./main exe/main.mbt" -o "./target/wasm-gc/debug/build/main exe/main exe.core" -pkg "username/hello/main exe" -is-main -i "./target/wasm-gc/debug/build/main lib/main lib.mi:lib" -pkg-sources "username/hello/main exe:./main exe" -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core "./target/wasm-gc/debug/build/main lib/main lib.core" "./target/wasm-gc/debug/build/main exe/main exe.core" -main "username/hello/main exe" -o "./target/wasm-gc/debug/build/main exe/main exe.wasm" -pkg-config-path "./main exe/moon.pkg.json" -pkg-sources "username/hello/main lib:./main lib" -pkg-sources "username/hello/main exe:./main exe" -target wasm-gc -g -O0 -source-map
         "#]],
     );
 
@@ -562,10 +562,10 @@ fn whitespace_test() {
     check(
         get_stdout(&dir, ["run", "main exe", "--dry-run", "--nostd"]),
         expect![[r#"
-            moonc build-package "./main lib/hello.mbt" -o "./target/wasm-gc/release/build/main lib/main lib.core" -pkg "username/hello/main lib" -pkg-sources "username/hello/main lib:./main lib" -target wasm-gc -workspace-path .
-            moonc build-package "./main exe/main.mbt" -o "./target/wasm-gc/release/build/main exe/main exe.core" -pkg "username/hello/main exe" -is-main -i "./target/wasm-gc/release/build/main lib/main lib.mi:lib" -pkg-sources "username/hello/main exe:./main exe" -target wasm-gc -workspace-path .
-            moonc link-core "./target/wasm-gc/release/build/main lib/main lib.core" "./target/wasm-gc/release/build/main exe/main exe.core" -main "username/hello/main exe" -o "./target/wasm-gc/release/build/main exe/main exe.wasm" -pkg-config-path "./main exe/moon.pkg.json" -pkg-sources "username/hello/main lib:./main lib" -pkg-sources "username/hello/main exe:./main exe" -target wasm-gc
-            moonrun ./target/wasm-gc/release/build/main exe/main exe.wasm
+            moonc build-package "./main lib/hello.mbt" -o "./target/wasm-gc/debug/build/main lib/main lib.core" -pkg "username/hello/main lib" -pkg-sources "username/hello/main lib:./main lib" -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package "./main exe/main.mbt" -o "./target/wasm-gc/debug/build/main exe/main exe.core" -pkg "username/hello/main exe" -is-main -i "./target/wasm-gc/debug/build/main lib/main lib.mi:lib" -pkg-sources "username/hello/main exe:./main exe" -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core "./target/wasm-gc/debug/build/main lib/main lib.core" "./target/wasm-gc/debug/build/main exe/main exe.core" -main "username/hello/main exe" -o "./target/wasm-gc/debug/build/main exe/main exe.wasm" -pkg-config-path "./main exe/moon.pkg.json" -pkg-sources "username/hello/main lib:./main lib" -pkg-sources "username/hello/main exe:./main exe" -target wasm-gc -g -O0 -source-map
+            moonrun ./target/wasm-gc/debug/build/main exe/main exe.wasm
         "#]],
     );
 
@@ -584,9 +584,9 @@ fn whitespace_test() {
             ["build", "--target", "wasm-gc", "--dry-run", "--nostd"],
         ),
         expect![[r#"
-            moonc build-package "./main lib/hello.mbt" -o "./target/wasm-gc/release/build/main lib/main lib.core" -pkg "username/hello/main lib" -pkg-sources "username/hello/main lib:./main lib" -target wasm-gc -workspace-path .
-            moonc build-package "./main exe/main.mbt" -o "./target/wasm-gc/release/build/main exe/main exe.core" -pkg "username/hello/main exe" -is-main -i "./target/wasm-gc/release/build/main lib/main lib.mi:lib" -pkg-sources "username/hello/main exe:./main exe" -target wasm-gc -workspace-path .
-            moonc link-core "./target/wasm-gc/release/build/main lib/main lib.core" "./target/wasm-gc/release/build/main exe/main exe.core" -main "username/hello/main exe" -o "./target/wasm-gc/release/build/main exe/main exe.wasm" -pkg-config-path "./main exe/moon.pkg.json" -pkg-sources "username/hello/main lib:./main lib" -pkg-sources "username/hello/main exe:./main exe" -target wasm-gc
+            moonc build-package "./main lib/hello.mbt" -o "./target/wasm-gc/debug/build/main lib/main lib.core" -pkg "username/hello/main lib" -pkg-sources "username/hello/main lib:./main lib" -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package "./main exe/main.mbt" -o "./target/wasm-gc/debug/build/main exe/main exe.core" -pkg "username/hello/main exe" -is-main -i "./target/wasm-gc/debug/build/main lib/main lib.mi:lib" -pkg-sources "username/hello/main exe:./main exe" -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core "./target/wasm-gc/debug/build/main lib/main lib.core" "./target/wasm-gc/debug/build/main exe/main exe.core" -main "username/hello/main exe" -o "./target/wasm-gc/debug/build/main exe/main exe.wasm" -pkg-config-path "./main exe/moon.pkg.json" -pkg-sources "username/hello/main lib:./main lib" -pkg-sources "username/hello/main exe:./main exe" -target wasm-gc -g -O0 -source-map
         "#]],
     );
     check(
@@ -621,10 +621,10 @@ fn whitespace_test() {
             ],
         ),
         expect![[r#"
-            moonc build-package "./main lib/hello.mbt" -o "./target/wasm-gc/release/build/main lib/main lib.core" -pkg "username/hello/main lib" -pkg-sources "username/hello/main lib:./main lib" -target wasm-gc -workspace-path .
-            moonc build-package "./main exe/main.mbt" -o "./target/wasm-gc/release/build/main exe/main exe.core" -pkg "username/hello/main exe" -is-main -i "./target/wasm-gc/release/build/main lib/main lib.mi:lib" -pkg-sources "username/hello/main exe:./main exe" -target wasm-gc -workspace-path .
-            moonc link-core "./target/wasm-gc/release/build/main lib/main lib.core" "./target/wasm-gc/release/build/main exe/main exe.core" -main "username/hello/main exe" -o "./target/wasm-gc/release/build/main exe/main exe.wasm" -pkg-config-path "./main exe/moon.pkg.json" -pkg-sources "username/hello/main lib:./main lib" -pkg-sources "username/hello/main exe:./main exe" -target wasm-gc
-            moonrun ./target/wasm-gc/release/build/main exe/main exe.wasm
+            moonc build-package "./main lib/hello.mbt" -o "./target/wasm-gc/debug/build/main lib/main lib.core" -pkg "username/hello/main lib" -pkg-sources "username/hello/main lib:./main lib" -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package "./main exe/main.mbt" -o "./target/wasm-gc/debug/build/main exe/main exe.core" -pkg "username/hello/main exe" -is-main -i "./target/wasm-gc/debug/build/main lib/main lib.mi:lib" -pkg-sources "username/hello/main exe:./main exe" -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core "./target/wasm-gc/debug/build/main lib/main lib.core" "./target/wasm-gc/debug/build/main exe/main exe.core" -main "username/hello/main exe" -o "./target/wasm-gc/debug/build/main exe/main exe.wasm" -pkg-config-path "./main exe/moon.pkg.json" -pkg-sources "username/hello/main lib:./main lib" -pkg-sources "username/hello/main exe:./main exe" -target wasm-gc -g -O0 -source-map
+            moonrun ./target/wasm-gc/debug/build/main exe/main exe.wasm
         "#]],
     );
 
@@ -693,9 +693,9 @@ fn test_whitespace_parent_space() -> anyhow::Result<()> {
     check(
         &out,
         expect![[r#"
-            moonc build-package "./main lib/hello.mbt" -o "./target/wasm-gc/release/build/main lib/main lib.core" -pkg "username/hello/main lib" -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources "username/hello/main lib:./main lib" -target wasm-gc -workspace-path "."
-            moonc build-package "./main exe/main.mbt" -o "./target/wasm-gc/release/build/main exe/main exe.core" -pkg "username/hello/main exe" -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i "./target/wasm-gc/release/build/main lib/main lib.mi:lib" -pkg-sources "username/hello/main exe:./main exe" -target wasm-gc -workspace-path "."
-            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core "./target/wasm-gc/release/build/main lib/main lib.core" "./target/wasm-gc/release/build/main exe/main exe.core" -main "username/hello/main exe" -o "./target/wasm-gc/release/build/main exe/main exe.wasm" -pkg-config-path "./main exe/moon.pkg.json" -pkg-sources "username/hello/main lib:./main lib" -pkg-sources "username/hello/main exe:./main exe" -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc
+            moonc build-package "./main lib/hello.mbt" -o "./target/wasm-gc/debug/build/main lib/main lib.core" -pkg "username/hello/main lib" -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources "username/hello/main lib:./main lib" -target wasm-gc -g -O0 -source-map -workspace-path "."
+            moonc build-package "./main exe/main.mbt" -o "./target/wasm-gc/debug/build/main exe/main exe.core" -pkg "username/hello/main exe" -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i "./target/wasm-gc/debug/build/main lib/main lib.mi:lib" -pkg-sources "username/hello/main exe:./main exe" -target wasm-gc -g -O0 -source-map -workspace-path "."
+            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core "./target/wasm-gc/debug/build/main lib/main lib.core" "./target/wasm-gc/debug/build/main exe/main exe.core" -main "username/hello/main exe" -o "./target/wasm-gc/debug/build/main exe/main exe.wasm" -pkg-config-path "./main exe/moon.pkg.json" -pkg-sources "username/hello/main lib:./main lib" -pkg-sources "username/hello/main exe:./main exe" -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc -g -O0 -source-map
         "#]],
     );
 
@@ -738,19 +738,19 @@ fn debug_flag_test() {
     check(
         get_stdout(&dir, ["check", "--dry-run", "--nostd"]),
         expect![[r#"
-            moonc check ./lib/hello.mbt -o ./target/wasm-gc/release/check/lib/lib.mi -pkg hello/lib -pkg-sources hello/lib:./lib -target wasm-gc -workspace-path .
-            moonc check ./main/main.mbt -o ./target/wasm-gc/release/check/main/main.mi -pkg hello/main -is-main -i ./target/wasm-gc/release/check/lib/lib.mi:lib -pkg-sources hello/main:./main -target wasm-gc -workspace-path .
-            moonc check -doctest-only ./main/main.mbt -include-doctests -o ./target/wasm-gc/release/check/main/main.blackbox_test.mi -pkg hello/main_blackbox_test -i ./target/wasm-gc/release/check/main/main.mi:main -i ./target/wasm-gc/release/check/lib/lib.mi:lib -pkg-sources hello/main_blackbox_test:./main -target wasm-gc -blackbox-test -workspace-path .
-            moonc check -doctest-only ./lib/hello.mbt -include-doctests -o ./target/wasm-gc/release/check/lib/lib.blackbox_test.mi -pkg hello/lib_blackbox_test -i ./target/wasm-gc/release/check/lib/lib.mi:lib -pkg-sources hello/lib_blackbox_test:./lib -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./lib/hello.mbt -o ./target/wasm-gc/debug/check/lib/lib.mi -pkg hello/lib -pkg-sources hello/lib:./lib -target wasm-gc -workspace-path .
+            moonc check ./main/main.mbt -o ./target/wasm-gc/debug/check/main/main.mi -pkg hello/main -is-main -i ./target/wasm-gc/debug/check/lib/lib.mi:lib -pkg-sources hello/main:./main -target wasm-gc -workspace-path .
+            moonc check -doctest-only ./main/main.mbt -include-doctests -o ./target/wasm-gc/debug/check/main/main.blackbox_test.mi -pkg hello/main_blackbox_test -i ./target/wasm-gc/debug/check/main/main.mi:main -i ./target/wasm-gc/debug/check/lib/lib.mi:lib -pkg-sources hello/main_blackbox_test:./main -target wasm-gc -blackbox-test -workspace-path .
+            moonc check -doctest-only ./lib/hello.mbt -include-doctests -o ./target/wasm-gc/debug/check/lib/lib.blackbox_test.mi -pkg hello/lib_blackbox_test -i ./target/wasm-gc/debug/check/lib/lib.mi:lib -pkg-sources hello/lib_blackbox_test:./lib -target wasm-gc -blackbox-test -workspace-path .
         "#]],
     );
 
     check(
         get_stdout(&dir, ["build", "--dry-run", "--nostd"]),
         expect![[r#"
-            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/release/build/lib/lib.core -pkg hello/lib -pkg-sources hello/lib:./lib -target wasm-gc -workspace-path .
-            moonc build-package ./main/main.mbt -o ./target/wasm-gc/release/build/main/main.core -pkg hello/main -is-main -i ./target/wasm-gc/release/build/lib/lib.mi:lib -pkg-sources hello/main:./main -target wasm-gc -workspace-path .
-            moonc link-core ./target/wasm-gc/release/build/lib/lib.core ./target/wasm-gc/release/build/main/main.core -main hello/main -o ./target/wasm-gc/release/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources hello/lib:./lib -pkg-sources hello/main:./main -target wasm-gc
+            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/debug/build/lib/lib.core -pkg hello/lib -pkg-sources hello/lib:./lib -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./main/main.mbt -o ./target/wasm-gc/debug/build/main/main.core -pkg hello/main -is-main -i ./target/wasm-gc/debug/build/lib/lib.mi:lib -pkg-sources hello/main:./main -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core ./target/wasm-gc/debug/build/lib/lib.core ./target/wasm-gc/debug/build/main/main.core -main hello/main -o ./target/wasm-gc/debug/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources hello/lib:./lib -pkg-sources hello/main:./main -target wasm-gc -g -O0 -source-map
         "#]],
     );
 
@@ -766,10 +766,10 @@ fn debug_flag_test() {
     check(
         get_stdout(&dir, ["run", "main", "--dry-run", "--nostd"]),
         expect![[r#"
-            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/release/build/lib/lib.core -pkg hello/lib -pkg-sources hello/lib:./lib -target wasm-gc -workspace-path .
-            moonc build-package ./main/main.mbt -o ./target/wasm-gc/release/build/main/main.core -pkg hello/main -is-main -i ./target/wasm-gc/release/build/lib/lib.mi:lib -pkg-sources hello/main:./main -target wasm-gc -workspace-path .
-            moonc link-core ./target/wasm-gc/release/build/lib/lib.core ./target/wasm-gc/release/build/main/main.core -main hello/main -o ./target/wasm-gc/release/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources hello/lib:./lib -pkg-sources hello/main:./main -target wasm-gc
-            moonrun ./target/wasm-gc/release/build/main/main.wasm
+            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/debug/build/lib/lib.core -pkg hello/lib -pkg-sources hello/lib:./lib -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./main/main.mbt -o ./target/wasm-gc/debug/build/main/main.core -pkg hello/main -is-main -i ./target/wasm-gc/debug/build/lib/lib.mi:lib -pkg-sources hello/main:./main -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core ./target/wasm-gc/debug/build/lib/lib.core ./target/wasm-gc/debug/build/main/main.core -main hello/main -o ./target/wasm-gc/debug/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources hello/lib:./lib -pkg-sources hello/main:./main -target wasm-gc -g -O0 -source-map
+            moonrun ./target/wasm-gc/debug/build/main/main.wasm
         "#]],
     );
 
@@ -788,9 +788,9 @@ fn debug_flag_test() {
             ["build", "--target", "wasm-gc", "--dry-run", "--nostd"],
         ),
         expect![[r#"
-            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/release/build/lib/lib.core -pkg hello/lib -pkg-sources hello/lib:./lib -target wasm-gc -workspace-path .
-            moonc build-package ./main/main.mbt -o ./target/wasm-gc/release/build/main/main.core -pkg hello/main -is-main -i ./target/wasm-gc/release/build/lib/lib.mi:lib -pkg-sources hello/main:./main -target wasm-gc -workspace-path .
-            moonc link-core ./target/wasm-gc/release/build/lib/lib.core ./target/wasm-gc/release/build/main/main.core -main hello/main -o ./target/wasm-gc/release/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources hello/lib:./lib -pkg-sources hello/main:./main -target wasm-gc
+            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/debug/build/lib/lib.core -pkg hello/lib -pkg-sources hello/lib:./lib -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./main/main.mbt -o ./target/wasm-gc/debug/build/main/main.core -pkg hello/main -is-main -i ./target/wasm-gc/debug/build/lib/lib.mi:lib -pkg-sources hello/main:./main -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core ./target/wasm-gc/debug/build/lib/lib.core ./target/wasm-gc/debug/build/main/main.core -main hello/main -o ./target/wasm-gc/debug/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources hello/lib:./lib -pkg-sources hello/main:./main -target wasm-gc -g -O0 -source-map
         "#]],
     );
     check(
@@ -818,10 +818,10 @@ fn debug_flag_test() {
             ["run", "main", "--target", "wasm-gc", "--dry-run", "--nostd"],
         ),
         expect![[r#"
-            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/release/build/lib/lib.core -pkg hello/lib -pkg-sources hello/lib:./lib -target wasm-gc -workspace-path .
-            moonc build-package ./main/main.mbt -o ./target/wasm-gc/release/build/main/main.core -pkg hello/main -is-main -i ./target/wasm-gc/release/build/lib/lib.mi:lib -pkg-sources hello/main:./main -target wasm-gc -workspace-path .
-            moonc link-core ./target/wasm-gc/release/build/lib/lib.core ./target/wasm-gc/release/build/main/main.core -main hello/main -o ./target/wasm-gc/release/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources hello/lib:./lib -pkg-sources hello/main:./main -target wasm-gc
-            moonrun ./target/wasm-gc/release/build/main/main.wasm
+            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/debug/build/lib/lib.core -pkg hello/lib -pkg-sources hello/lib:./lib -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./main/main.mbt -o ./target/wasm-gc/debug/build/main/main.core -pkg hello/main -is-main -i ./target/wasm-gc/debug/build/lib/lib.mi:lib -pkg-sources hello/main:./main -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core ./target/wasm-gc/debug/build/lib/lib.core ./target/wasm-gc/debug/build/main/main.core -main hello/main -o ./target/wasm-gc/debug/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources hello/lib:./lib -pkg-sources hello/main:./main -target wasm-gc -g -O0 -source-map
+            moonrun ./target/wasm-gc/debug/build/main/main.wasm
         "#]],
     );
 
@@ -915,9 +915,9 @@ fn test_moon_run_with_cli_args() {
     check(
         get_stdout(&dir, ["run", "main", "--dry-run"]),
         expect![[r#"
-            moonc build-package ./main/main_wasm.mbt -o ./target/wasm-gc/release/build/main/main.core -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/main:./main -target wasm-gc -workspace-path .
-            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/release/build/main/main.core -main username/hello/main -o ./target/wasm-gc/release/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc
-            moonrun ./target/wasm-gc/release/build/main/main.wasm
+            moonc build-package ./main/main_wasm.mbt -o ./target/wasm-gc/debug/build/main/main.core -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/main:./main -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/debug/build/main/main.core -main username/hello/main -o ./target/wasm-gc/debug/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc -g -O0 -source-map
+            moonrun ./target/wasm-gc/debug/build/main/main.wasm
         "#]],
     );
 
@@ -936,9 +936,9 @@ fn test_moon_run_with_cli_args() {
             ],
         ),
         expect![[r#"
-            moonc build-package ./main/main_wasm.mbt -o ./target/wasm-gc/release/build/main/main.core -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/main:./main -target wasm-gc -workspace-path .
-            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/release/build/main/main.core -main username/hello/main -o ./target/wasm-gc/release/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc
-            moonrun ./target/wasm-gc/release/build/main/main.wasm -- 中文 😄👍 hello 1242
+            moonc build-package ./main/main_wasm.mbt -o ./target/wasm-gc/debug/build/main/main.core -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/main:./main -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/debug/build/main/main.core -main username/hello/main -o ./target/wasm-gc/debug/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc -g -O0 -source-map
+            moonrun ./target/wasm-gc/debug/build/main/main.wasm -- 中文 😄👍 hello 1242
         "#]],
     );
 
@@ -1030,10 +1030,10 @@ fn test_moonbitlang_x() {
     check(
         &build_output,
         expect![[r#"
-            moonc build-package ./.mooncakes/moonbitlang/x/stack/deprecated.mbt ./.mooncakes/moonbitlang/x/stack/stack.mbt ./.mooncakes/moonbitlang/x/stack/types.mbt -w -a -alert -all -o ./target/wasm-gc/release/build/.mooncakes/moonbitlang/x/stack/stack.core -pkg moonbitlang/x/stack -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources moonbitlang/x/stack:./.mooncakes/moonbitlang/x/stack -target wasm-gc -workspace-path ./.mooncakes/moonbitlang/x
-            moonc build-package ./src/lib/hello.mbt -o ./target/wasm-gc/release/build/lib/lib.core -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/build/.mooncakes/moonbitlang/x/stack/stack.mi:stack -pkg-sources username/hello/lib:./src/lib -target wasm-gc -workspace-path .
-            moonc build-package ./src/main/main.mbt -o ./target/wasm-gc/release/build/main/main.core -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/build/lib/lib.mi:lib -i ./target/wasm-gc/release/build/.mooncakes/moonbitlang/x/stack/stack.mi:stack -pkg-sources username/hello/main:./src/main -target wasm-gc -workspace-path .
-            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/release/build/.mooncakes/moonbitlang/x/stack/stack.core ./target/wasm-gc/release/build/lib/lib.core ./target/wasm-gc/release/build/main/main.core -main username/hello/main -o ./target/wasm-gc/release/build/main/main.wasm -pkg-config-path ./src/main/moon.pkg.json -pkg-sources moonbitlang/x/stack:./.mooncakes/moonbitlang/x/stack -pkg-sources username/hello/lib:./src/lib -pkg-sources username/hello/main:./src/main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc
+            moonc build-package ./.mooncakes/moonbitlang/x/stack/deprecated.mbt ./.mooncakes/moonbitlang/x/stack/stack.mbt ./.mooncakes/moonbitlang/x/stack/types.mbt -w -a -alert -all -o ./target/wasm-gc/debug/build/.mooncakes/moonbitlang/x/stack/stack.core -pkg moonbitlang/x/stack -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources moonbitlang/x/stack:./.mooncakes/moonbitlang/x/stack -target wasm-gc -g -O0 -source-map -workspace-path ./.mooncakes/moonbitlang/x
+            moonc build-package ./src/lib/hello.mbt -o ./target/wasm-gc/debug/build/lib/lib.core -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/build/.mooncakes/moonbitlang/x/stack/stack.mi:stack -pkg-sources username/hello/lib:./src/lib -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./src/main/main.mbt -o ./target/wasm-gc/debug/build/main/main.core -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/build/lib/lib.mi:lib -i ./target/wasm-gc/debug/build/.mooncakes/moonbitlang/x/stack/stack.mi:stack -pkg-sources username/hello/main:./src/main -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/debug/build/.mooncakes/moonbitlang/x/stack/stack.core ./target/wasm-gc/debug/build/lib/lib.core ./target/wasm-gc/debug/build/main/main.core -main username/hello/main -o ./target/wasm-gc/debug/build/main/main.wasm -pkg-config-path ./src/main/moon.pkg.json -pkg-sources moonbitlang/x/stack:./.mooncakes/moonbitlang/x/stack -pkg-sources username/hello/lib:./src/lib -pkg-sources username/hello/main:./src/main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc -g -O0 -source-map
         "#]],
     );
 
@@ -1139,17 +1139,17 @@ fn test_blackbox_success() {
     check(
         get_stdout(&dir, ["check", "--sort-input", "--dry-run"]),
         expect![[r#"
-            moonc check ./main/main.mbt -o ./target/wasm-gc/release/check/main/main.mi -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/main:./main -target wasm-gc -workspace-path .
-            moonc check -doctest-only ./main/main.mbt -include-doctests -o ./target/wasm-gc/release/check/main/main.blackbox_test.mi -pkg username/hello/main_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/main/main.mi:main -pkg-sources username/hello/main_blackbox_test:./main -target wasm-gc -blackbox-test -workspace-path .
-            moonc check ./D/hello.mbt -o ./target/wasm-gc/release/check/D/D.mi -pkg username/hello/D -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/D:./D -target wasm-gc -workspace-path .
-            moonc check -doctest-only ./D/hello.mbt -include-doctests -o ./target/wasm-gc/release/check/D/D.blackbox_test.mi -pkg username/hello/D_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/D/D.mi:D -pkg-sources username/hello/D_blackbox_test:./D -target wasm-gc -blackbox-test -workspace-path .
-            moonc check ./C/hello.mbt -o ./target/wasm-gc/release/check/C/C.mi -pkg username/hello/C -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/C:./C -target wasm-gc -workspace-path .
-            moonc check -doctest-only ./C/hello.mbt -include-doctests -o ./target/wasm-gc/release/check/C/C.blackbox_test.mi -pkg username/hello/C_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/C/C.mi:C -pkg-sources username/hello/C_blackbox_test:./C -target wasm-gc -blackbox-test -workspace-path .
-            moonc check ./B/hello.mbt -o ./target/wasm-gc/release/check/B/B.mi -pkg username/hello/B -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/B:./B -target wasm-gc -workspace-path .
-            moonc check -doctest-only ./B/hello.mbt -include-doctests -o ./target/wasm-gc/release/check/B/B.blackbox_test.mi -pkg username/hello/B_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/B/B.mi:B -pkg-sources username/hello/B_blackbox_test:./B -target wasm-gc -blackbox-test -workspace-path .
-            moonc check ./A/hello.mbt ./A/hello_wbtest.mbt -o ./target/wasm-gc/release/check/A/A.whitebox_test.mi -pkg username/hello/A -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/D/D.mi:D -i ./target/wasm-gc/release/check/B/B.mi:B -pkg-sources username/hello/A:./A -target wasm-gc -whitebox-test -workspace-path .
-            moonc check ./A/hello.mbt -o ./target/wasm-gc/release/check/A/A.mi -pkg username/hello/A -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/D/D.mi:D -pkg-sources username/hello/A:./A -target wasm-gc -workspace-path .
-            moonc check ./A/hello_test.mbt -doctest-only ./A/hello.mbt -include-doctests -o ./target/wasm-gc/release/check/A/A.blackbox_test.mi -pkg username/hello/A_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/A/A.mi:A -i ./target/wasm-gc/release/check/D/D.mi:D -i ./target/wasm-gc/release/check/C/C.mi:C -pkg-sources username/hello/A_blackbox_test:./A -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./main/main.mbt -o ./target/wasm-gc/debug/check/main/main.mi -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/main:./main -target wasm-gc -workspace-path .
+            moonc check -doctest-only ./main/main.mbt -include-doctests -o ./target/wasm-gc/debug/check/main/main.blackbox_test.mi -pkg username/hello/main_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/main/main.mi:main -pkg-sources username/hello/main_blackbox_test:./main -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./D/hello.mbt -o ./target/wasm-gc/debug/check/D/D.mi -pkg username/hello/D -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/D:./D -target wasm-gc -workspace-path .
+            moonc check -doctest-only ./D/hello.mbt -include-doctests -o ./target/wasm-gc/debug/check/D/D.blackbox_test.mi -pkg username/hello/D_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/D/D.mi:D -pkg-sources username/hello/D_blackbox_test:./D -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./C/hello.mbt -o ./target/wasm-gc/debug/check/C/C.mi -pkg username/hello/C -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/C:./C -target wasm-gc -workspace-path .
+            moonc check -doctest-only ./C/hello.mbt -include-doctests -o ./target/wasm-gc/debug/check/C/C.blackbox_test.mi -pkg username/hello/C_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/C/C.mi:C -pkg-sources username/hello/C_blackbox_test:./C -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./B/hello.mbt -o ./target/wasm-gc/debug/check/B/B.mi -pkg username/hello/B -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/B:./B -target wasm-gc -workspace-path .
+            moonc check -doctest-only ./B/hello.mbt -include-doctests -o ./target/wasm-gc/debug/check/B/B.blackbox_test.mi -pkg username/hello/B_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/B/B.mi:B -pkg-sources username/hello/B_blackbox_test:./B -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./A/hello.mbt ./A/hello_wbtest.mbt -o ./target/wasm-gc/debug/check/A/A.whitebox_test.mi -pkg username/hello/A -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/D/D.mi:D -i ./target/wasm-gc/debug/check/B/B.mi:B -pkg-sources username/hello/A:./A -target wasm-gc -whitebox-test -workspace-path .
+            moonc check ./A/hello.mbt -o ./target/wasm-gc/debug/check/A/A.mi -pkg username/hello/A -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/D/D.mi:D -pkg-sources username/hello/A:./A -target wasm-gc -workspace-path .
+            moonc check ./A/hello_test.mbt -doctest-only ./A/hello.mbt -include-doctests -o ./target/wasm-gc/debug/check/A/A.blackbox_test.mi -pkg username/hello/A_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/A/A.mi:A -i ./target/wasm-gc/debug/check/D/D.mi:D -i ./target/wasm-gc/debug/check/C/C.mi:C -pkg-sources username/hello/A_blackbox_test:./A -target wasm-gc -blackbox-test -workspace-path .
         "#]],
     );
 
@@ -1242,7 +1242,7 @@ fn test_blackbox_success() {
                           "fspath": "$ROOT/C"
                         }
                       ],
-                      "artifact": "$ROOT/target/wasm-gc/release/check/A/A.mi"
+                      "artifact": "$ROOT/target/wasm-gc/debug/check/A/A.mi"
                     },
                     {
                       "is-main": false,
@@ -1271,7 +1271,7 @@ fn test_blackbox_success() {
                       "deps": [],
                       "wbtest-deps": [],
                       "test-deps": [],
-                      "artifact": "$ROOT/target/wasm-gc/release/check/B/B.mi"
+                      "artifact": "$ROOT/target/wasm-gc/debug/check/B/B.mi"
                     },
                     {
                       "is-main": false,
@@ -1300,7 +1300,7 @@ fn test_blackbox_success() {
                       "deps": [],
                       "wbtest-deps": [],
                       "test-deps": [],
-                      "artifact": "$ROOT/target/wasm-gc/release/check/C/C.mi"
+                      "artifact": "$ROOT/target/wasm-gc/debug/check/C/C.mi"
                     },
                     {
                       "is-main": false,
@@ -1329,7 +1329,7 @@ fn test_blackbox_success() {
                       "deps": [],
                       "wbtest-deps": [],
                       "test-deps": [],
-                      "artifact": "$ROOT/target/wasm-gc/release/check/D/D.mi"
+                      "artifact": "$ROOT/target/wasm-gc/debug/check/D/D.mi"
                     },
                     {
                       "is-main": true,
@@ -1358,12 +1358,12 @@ fn test_blackbox_success() {
                       "deps": [],
                       "wbtest-deps": [],
                       "test-deps": [],
-                      "artifact": "$ROOT/target/wasm-gc/release/check/main/main.mi"
+                      "artifact": "$ROOT/target/wasm-gc/debug/check/main/main.mi"
                     }
                   ],
                   "deps": [],
                   "backend": "wasm-gc",
-                  "opt_level": "release",
+                  "opt_level": "debug",
                   "source": null
                 }"#]],
         );
@@ -1498,9 +1498,9 @@ fn test_import_memory_and_heap_start() {
             ],
         ),
         expect![[r#"
-            moonc build-package ./lib/hello.mbt -o ./target/wasm/release/build/lib/lib.core -pkg username/hello/lib -pkg-sources username/hello/lib:./lib -target wasm -workspace-path .
-            moonc build-package ./main/main.mbt -o ./target/wasm/release/build/main/main.core -pkg username/hello/main -is-main -i ./target/wasm/release/build/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm -workspace-path .
-            moonc link-core ./target/wasm/release/build/lib/lib.core ./target/wasm/release/build/main/main.core -main username/hello/main -o ./target/wasm/release/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/main:./main -target wasm -import-memory-module xxx -import-memory-name yyy -heap-start-address 65536
+            moonc build-package ./lib/hello.mbt -o ./target/wasm/debug/build/lib/lib.core -pkg username/hello/lib -pkg-sources username/hello/lib:./lib -target wasm -g -O0 -workspace-path .
+            moonc build-package ./main/main.mbt -o ./target/wasm/debug/build/main/main.core -pkg username/hello/main -is-main -i ./target/wasm/debug/build/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm -g -O0 -workspace-path .
+            moonc link-core ./target/wasm/debug/build/lib/lib.core ./target/wasm/debug/build/main/main.core -main username/hello/main -o ./target/wasm/debug/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/main:./main -target wasm -g -O0 -import-memory-module xxx -import-memory-name yyy -heap-start-address 65536
         "#]],
     );
 
@@ -1518,9 +1518,9 @@ fn test_import_memory_and_heap_start() {
             ],
         ),
         expect![[r#"
-            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/release/build/lib/lib.core -pkg username/hello/lib -pkg-sources username/hello/lib:./lib -target wasm-gc -workspace-path .
-            moonc build-package ./main/main.mbt -o ./target/wasm-gc/release/build/main/main.core -pkg username/hello/main -is-main -i ./target/wasm-gc/release/build/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm-gc -workspace-path .
-            moonc link-core ./target/wasm-gc/release/build/lib/lib.core ./target/wasm-gc/release/build/main/main.core -main username/hello/main -o ./target/wasm-gc/release/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/main:./main -target wasm-gc -import-memory-module xxx -import-memory-name yyy
+            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/debug/build/lib/lib.core -pkg username/hello/lib -pkg-sources username/hello/lib:./lib -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./main/main.mbt -o ./target/wasm-gc/debug/build/main/main.core -pkg username/hello/main -is-main -i ./target/wasm-gc/debug/build/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core ./target/wasm-gc/debug/build/lib/lib.core ./target/wasm-gc/debug/build/main/main.core -main username/hello/main -o ./target/wasm-gc/debug/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/main:./main -target wasm-gc -g -O0 -source-map -import-memory-module xxx -import-memory-name yyy
         "#]],
     );
 }
@@ -1541,9 +1541,9 @@ fn test_import_shared_memory() {
             ],
         ),
         expect![[r#"
-            moonc build-package ./lib/hello.mbt -o ./target/wasm/release/build/lib/lib.core -pkg username/hello/lib -pkg-sources username/hello/lib:./lib -target wasm -workspace-path .
-            moonc build-package ./main/main.mbt -o ./target/wasm/release/build/main/main.core -pkg username/hello/main -is-main -i ./target/wasm/release/build/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm -workspace-path .
-            moonc link-core ./target/wasm/release/build/lib/lib.core ./target/wasm/release/build/main/main.core -main username/hello/main -o ./target/wasm/release/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/main:./main -target wasm -import-memory-module xxx -import-memory-name yyy -memory-limits-min 1 -memory-limits-max 65536 -shared-memory -heap-start-address 65536
+            moonc build-package ./lib/hello.mbt -o ./target/wasm/debug/build/lib/lib.core -pkg username/hello/lib -pkg-sources username/hello/lib:./lib -target wasm -g -O0 -workspace-path .
+            moonc build-package ./main/main.mbt -o ./target/wasm/debug/build/main/main.core -pkg username/hello/main -is-main -i ./target/wasm/debug/build/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm -g -O0 -workspace-path .
+            moonc link-core ./target/wasm/debug/build/lib/lib.core ./target/wasm/debug/build/main/main.core -main username/hello/main -o ./target/wasm/debug/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/main:./main -target wasm -g -O0 -import-memory-module xxx -import-memory-name yyy -memory-limits-min 1 -memory-limits-max 65536 -shared-memory -heap-start-address 65536
         "#]],
     );
 
@@ -1561,9 +1561,9 @@ fn test_import_shared_memory() {
             ],
         ),
         expect![[r#"
-            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/release/build/lib/lib.core -pkg username/hello/lib -pkg-sources username/hello/lib:./lib -target wasm-gc -workspace-path .
-            moonc build-package ./main/main.mbt -o ./target/wasm-gc/release/build/main/main.core -pkg username/hello/main -is-main -i ./target/wasm-gc/release/build/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm-gc -workspace-path .
-            moonc link-core ./target/wasm-gc/release/build/lib/lib.core ./target/wasm-gc/release/build/main/main.core -main username/hello/main -o ./target/wasm-gc/release/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/main:./main -target wasm-gc -import-memory-module xxx -import-memory-name yyy -memory-limits-min 1 -memory-limits-max 65535 -shared-memory
+            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/debug/build/lib/lib.core -pkg username/hello/lib -pkg-sources username/hello/lib:./lib -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./main/main.mbt -o ./target/wasm-gc/debug/build/main/main.core -pkg username/hello/main -is-main -i ./target/wasm-gc/debug/build/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core ./target/wasm-gc/debug/build/lib/lib.core ./target/wasm-gc/debug/build/main/main.core -main username/hello/main -o ./target/wasm-gc/debug/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/main:./main -target wasm-gc -g -O0 -source-map -import-memory-module xxx -import-memory-name yyy -memory-limits-min 1 -memory-limits-max 65535 -shared-memory
         "#]],
     );
 }
@@ -1580,8 +1580,8 @@ fn test_moon_run_native() {
     check(
         &output,
         expect![[r#"
-            moonc build-package $ROOT/a/b/single.mbt -o $ROOT/a/b/target/single.core -std-path $MOON_HOME/lib/core/target/native/release/bundle -is-main -pkg moon/run/single -g -O0 -source-map -target native
-            moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core $ROOT/a/b/target/single.core -o $ROOT/a/b/target/single.c -pkg-sources moon/run/single:$ROOT/a/b -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -g -O0 -source-map -target native
+            moonc build-package $ROOT/a/b/single.mbt -o $ROOT/a/b/target/single.core -std-path $MOON_HOME/lib/core/target/native/release/bundle -is-main -pkg moon/run/single -target native -g -source-map -O0
+            moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core $ROOT/a/b/target/single.core -o $ROOT/a/b/target/single.c -pkg-sources moon/run/single:$ROOT/a/b -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target native -g -source-map -O0
             $MOON_HOME/bin/internal/tcc -I$MOON_HOME/include -L$MOON_HOME/lib $MOON_HOME/lib/runtime.c -lm -DMOONBIT_NATIVE_NO_SYS_HEADER -run $ROOT/a/b/target/single.c
         "#]],
     );
@@ -1600,9 +1600,9 @@ fn test_moon_run_native() {
     check(
         &output,
         expect![[r#"
-            moonc build-package $ROOT/a/b/single.mbt -o $ROOT/a/b/target/single.core -std-path $MOON_HOME/lib/core/target/native/release/bundle -is-main -pkg moon/run/single -g -O0 -source-map -target native
-            moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core $ROOT/a/b/target/single.core -o $ROOT/a/b/target/single.c -pkg-sources moon/run/single:$ROOT/a/b -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -g -O0 -source-map -target native
-            cc -o $ROOT/a/b/target/single.exe -I$MOON_HOME/include -fwrapv -fno-strict-aliasing -O0 $MOON_HOME/lib/runtime.c $ROOT/a/b/target/single.c -lm
+            moonc build-package $ROOT/a/b/single.mbt -o $ROOT/a/b/target/single.core -std-path $MOON_HOME/lib/core/target/native/release/bundle -is-main -pkg moon/run/single -target native -g -source-map
+            moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core $ROOT/a/b/target/single.core -o $ROOT/a/b/target/single.c -pkg-sources moon/run/single:$ROOT/a/b -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target native -g -source-map
+            cc -o $ROOT/a/b/target/single.exe -I$MOON_HOME/include -g -fwrapv -fno-strict-aliasing -O0 $MOON_HOME/lib/runtime.c $ROOT/a/b/target/single.c -lm
             $ROOT/a/b/target/single.exe
         "#]],
     );
@@ -1626,8 +1626,8 @@ fn test_moon_run_single_mbt_file() {
     check(
         &output,
         expect![[r#"
-            moonc build-package $ROOT/a/b/single.mbt -o $ROOT/a/b/target/single.core -std-path $MOON_HOME/lib/core/target/js/release/bundle -is-main -pkg moon/run/single -g -O0 -source-map -target js
-            moonc link-core $MOON_HOME/lib/core/target/js/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/js/release/bundle/core.core $ROOT/a/b/target/single.core -o $ROOT/a/b/target/single.js -pkg-sources moon/run/single:$ROOT/a/b -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -g -O0 -source-map -target js
+            moonc build-package $ROOT/a/b/single.mbt -o $ROOT/a/b/target/single.core -std-path $MOON_HOME/lib/core/target/js/release/bundle -is-main -pkg moon/run/single -target js -g -source-map -O0
+            moonc link-core $MOON_HOME/lib/core/target/js/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/js/release/bundle/core.core $ROOT/a/b/target/single.core -o $ROOT/a/b/target/single.js -pkg-sources moon/run/single:$ROOT/a/b -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target js -g -source-map -O0
         "#]],
     );
 
@@ -1647,8 +1647,8 @@ fn test_moon_run_single_mbt_file() {
     check(
         &output,
         expect![[r#"
-            moonc build-package $ROOT/a/b/single.mbt -o $ROOT/a/b/target/single.core -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -is-main -pkg moon/run/single -g -O0 -source-map -target wasm-gc
-            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core $ROOT/a/b/target/single.core -o $ROOT/a/b/target/single.wasm -pkg-sources moon/run/single:$ROOT/a/b -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -g -O0 -source-map -target wasm-gc
+            moonc build-package $ROOT/a/b/single.mbt -o $ROOT/a/b/target/single.core -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -is-main -pkg moon/run/single -target wasm-gc -g -source-map -O0
+            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core $ROOT/a/b/target/single.core -o $ROOT/a/b/target/single.wasm -pkg-sources moon/run/single:$ROOT/a/b -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc -g -source-map -O0
             moonrun $ROOT/a/b/target/single.wasm
         "#]],
     );
@@ -1660,8 +1660,8 @@ fn test_moon_run_single_mbt_file() {
     check(
         &output,
         expect![[r#"
-            moonc build-package $ROOT/a/b/single.mbt -o $ROOT/a/b/target/single.core -std-path $MOON_HOME/lib/core/target/js/release/bundle -is-main -pkg moon/run/single -g -O0 -source-map -target js
-            moonc link-core $MOON_HOME/lib/core/target/js/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/js/release/bundle/core.core $ROOT/a/b/target/single.core -o $ROOT/a/b/target/single.js -pkg-sources moon/run/single:$ROOT/a/b -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -g -O0 -source-map -target js
+            moonc build-package $ROOT/a/b/single.mbt -o $ROOT/a/b/target/single.core -std-path $MOON_HOME/lib/core/target/js/release/bundle -is-main -pkg moon/run/single -target js -g -source-map -O0
+            moonc link-core $MOON_HOME/lib/core/target/js/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/js/release/bundle/core.core $ROOT/a/b/target/single.core -o $ROOT/a/b/target/single.js -pkg-sources moon/run/single:$ROOT/a/b -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target js -g -source-map -O0
             node $ROOT/a/b/target/single.js
         "#]],
     );
@@ -1804,18 +1804,18 @@ fn test_specify_source_dir_001() {
     check(
         get_stdout(&dir, ["check", "--dry-run", "--sort-input"]),
         expect![[r#"
-            moonc check ./src/lib/hello.mbt -o ./target/wasm-gc/release/check/lib/lib.mi -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./src/lib -target wasm-gc -workspace-path .
-            moonc check ./src/main/main.mbt -o ./target/wasm-gc/release/check/main/main.mi -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib/lib.mi:lib -pkg-sources username/hello/main:./src/main -target wasm-gc -workspace-path .
-            moonc check -doctest-only ./src/main/main.mbt -include-doctests -o ./target/wasm-gc/release/check/main/main.blackbox_test.mi -pkg username/hello/main_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/main/main.mi:main -i ./target/wasm-gc/release/check/lib/lib.mi:lib -pkg-sources username/hello/main_blackbox_test:./src/main -target wasm-gc -blackbox-test -workspace-path .
-            moonc check ./src/lib/hello_test.mbt -doctest-only ./src/lib/hello.mbt -include-doctests -o ./target/wasm-gc/release/check/lib/lib.blackbox_test.mi -pkg username/hello/lib_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib/lib.mi:lib -pkg-sources username/hello/lib_blackbox_test:./src/lib -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./src/lib/hello.mbt -o ./target/wasm-gc/debug/check/lib/lib.mi -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./src/lib -target wasm-gc -workspace-path .
+            moonc check ./src/main/main.mbt -o ./target/wasm-gc/debug/check/main/main.mi -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib/lib.mi:lib -pkg-sources username/hello/main:./src/main -target wasm-gc -workspace-path .
+            moonc check -doctest-only ./src/main/main.mbt -include-doctests -o ./target/wasm-gc/debug/check/main/main.blackbox_test.mi -pkg username/hello/main_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/main/main.mi:main -i ./target/wasm-gc/debug/check/lib/lib.mi:lib -pkg-sources username/hello/main_blackbox_test:./src/main -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./src/lib/hello_test.mbt -doctest-only ./src/lib/hello.mbt -include-doctests -o ./target/wasm-gc/debug/check/lib/lib.blackbox_test.mi -pkg username/hello/lib_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib/lib.mi:lib -pkg-sources username/hello/lib_blackbox_test:./src/lib -target wasm-gc -blackbox-test -workspace-path .
         "#]],
     );
     check(
         get_stdout(&dir, ["build", "--dry-run", "--sort-input"]),
         expect![[r#"
-            moonc build-package ./src/lib/hello.mbt -o ./target/wasm-gc/release/build/lib/lib.core -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./src/lib -target wasm-gc -workspace-path .
-            moonc build-package ./src/main/main.mbt -o ./target/wasm-gc/release/build/main/main.core -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/build/lib/lib.mi:lib -pkg-sources username/hello/main:./src/main -target wasm-gc -workspace-path .
-            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/release/build/lib/lib.core ./target/wasm-gc/release/build/main/main.core -main username/hello/main -o ./target/wasm-gc/release/build/main/main.wasm -pkg-config-path ./src/main/moon.pkg.json -pkg-sources username/hello/lib:./src/lib -pkg-sources username/hello/main:./src/main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc
+            moonc build-package ./src/lib/hello.mbt -o ./target/wasm-gc/debug/build/lib/lib.core -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./src/lib -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./src/main/main.mbt -o ./target/wasm-gc/debug/build/main/main.core -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/build/lib/lib.mi:lib -pkg-sources username/hello/main:./src/main -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/debug/build/lib/lib.core ./target/wasm-gc/debug/build/main/main.core -main username/hello/main -o ./target/wasm-gc/debug/build/main/main.wasm -pkg-config-path ./src/main/moon.pkg.json -pkg-sources username/hello/lib:./src/lib -pkg-sources username/hello/main:./src/main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc -g -O0 -source-map
         "#]],
     );
     check(
@@ -1894,7 +1894,7 @@ fn test_specify_source_dir_001() {
                       "deps": [],
                       "wbtest-deps": [],
                       "test-deps": [],
-                      "artifact": "$ROOT/target/wasm-gc/release/check/lib/lib.mi"
+                      "artifact": "$ROOT/target/wasm-gc/debug/check/lib/lib.mi"
                     },
                     {
                       "is-main": true,
@@ -1929,12 +1929,12 @@ fn test_specify_source_dir_001() {
                       ],
                       "wbtest-deps": [],
                       "test-deps": [],
-                      "artifact": "$ROOT/target/wasm-gc/release/check/main/main.mi"
+                      "artifact": "$ROOT/target/wasm-gc/debug/check/main/main.mi"
                     }
                   ],
                   "deps": [],
                   "backend": "wasm-gc",
-                  "opt_level": "release",
+                  "opt_level": "debug",
                   "source": "src"
                 }"#]],
         )
@@ -2023,10 +2023,10 @@ fn test_specify_source_dir_004() {
             ["run", "nes/t/ed/src/main", "--target", "js", "--build-only"],
         ),
         expect![[r#"
-            {"artifacts_path":["$ROOT/target/js/release/build/main/main.js"]}
+            {"artifacts_path":["$ROOT/target/js/debug/build/main/main.js"]}
         "#]],
     );
-    assert!(dir.join("target/js/release/build/main/main.js").exists());
+    assert!(dir.join("target/js/debug/build/main/main.js").exists());
 
     check(
         get_stdout(&dir, ["run", "nes/t/ed/src/main"]),
@@ -2057,22 +2057,22 @@ fn test_specify_source_dir_with_deps() {
     check(
         get_stdout(&dir, ["check", "--dry-run", "--sort-input"]),
         expect![[r#"
-            moonc check ./anyhow/lib/hello.mbt -o ./target/wasm-gc/release/check/lib/lib.mi -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./anyhow/lib -target wasm-gc -workspace-path .
-            moonc check ./deps/hello19/source/lib/hello.mbt -w -a -alert -all -o ./target/wasm-gc/release/check/.mooncakes/just/hello19/lib/lib.mi -pkg just/hello19/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources just/hello19/lib:./deps/hello19/source/lib -target wasm-gc -workspace-path ./deps/hello19
-            moonc check ./deps/hello19/source/top.mbt -w -a -alert -all -o ./target/wasm-gc/release/check/.mooncakes/just/hello19/hello19.mi -pkg just/hello19 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources just/hello19:./deps/hello19/source -target wasm-gc -workspace-path ./deps/hello19
-            moonc check ./anyhow/main/main.mbt -o ./target/wasm-gc/release/check/main/main.mi -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib/lib.mi:emmm -i ./target/wasm-gc/release/check/.mooncakes/just/hello19/hello19.mi:hello19 -i ./target/wasm-gc/release/check/.mooncakes/just/hello19/lib/lib.mi:lib -pkg-sources username/hello/main:./anyhow/main -target wasm-gc -workspace-path .
-            moonc check -doctest-only ./anyhow/main/main.mbt -include-doctests -o ./target/wasm-gc/release/check/main/main.blackbox_test.mi -pkg username/hello/main_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/main/main.mi:main -i ./target/wasm-gc/release/check/lib/lib.mi:emmm -i ./target/wasm-gc/release/check/.mooncakes/just/hello19/hello19.mi:hello19 -i ./target/wasm-gc/release/check/.mooncakes/just/hello19/lib/lib.mi:lib -pkg-sources username/hello/main_blackbox_test:./anyhow/main -target wasm-gc -blackbox-test -workspace-path .
-            moonc check ./anyhow/lib/hello_test.mbt -doctest-only ./anyhow/lib/hello.mbt -include-doctests -o ./target/wasm-gc/release/check/lib/lib.blackbox_test.mi -pkg username/hello/lib_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib/lib.mi:lib -pkg-sources username/hello/lib_blackbox_test:./anyhow/lib -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./anyhow/lib/hello.mbt -o ./target/wasm-gc/debug/check/lib/lib.mi -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./anyhow/lib -target wasm-gc -workspace-path .
+            moonc check ./deps/hello19/source/lib/hello.mbt -w -a -alert -all -o ./target/wasm-gc/debug/check/.mooncakes/just/hello19/lib/lib.mi -pkg just/hello19/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources just/hello19/lib:./deps/hello19/source/lib -target wasm-gc -workspace-path ./deps/hello19
+            moonc check ./deps/hello19/source/top.mbt -w -a -alert -all -o ./target/wasm-gc/debug/check/.mooncakes/just/hello19/hello19.mi -pkg just/hello19 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources just/hello19:./deps/hello19/source -target wasm-gc -workspace-path ./deps/hello19
+            moonc check ./anyhow/main/main.mbt -o ./target/wasm-gc/debug/check/main/main.mi -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib/lib.mi:emmm -i ./target/wasm-gc/debug/check/.mooncakes/just/hello19/hello19.mi:hello19 -i ./target/wasm-gc/debug/check/.mooncakes/just/hello19/lib/lib.mi:lib -pkg-sources username/hello/main:./anyhow/main -target wasm-gc -workspace-path .
+            moonc check -doctest-only ./anyhow/main/main.mbt -include-doctests -o ./target/wasm-gc/debug/check/main/main.blackbox_test.mi -pkg username/hello/main_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/main/main.mi:main -i ./target/wasm-gc/debug/check/lib/lib.mi:emmm -i ./target/wasm-gc/debug/check/.mooncakes/just/hello19/hello19.mi:hello19 -i ./target/wasm-gc/debug/check/.mooncakes/just/hello19/lib/lib.mi:lib -pkg-sources username/hello/main_blackbox_test:./anyhow/main -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./anyhow/lib/hello_test.mbt -doctest-only ./anyhow/lib/hello.mbt -include-doctests -o ./target/wasm-gc/debug/check/lib/lib.blackbox_test.mi -pkg username/hello/lib_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib/lib.mi:lib -pkg-sources username/hello/lib_blackbox_test:./anyhow/lib -target wasm-gc -blackbox-test -workspace-path .
         "#]],
     );
     check(
         get_stdout(&dir, ["build", "--dry-run", "--sort-input"]),
         expect![[r#"
-            moonc build-package ./anyhow/lib/hello.mbt -o ./target/wasm-gc/release/build/lib/lib.core -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./anyhow/lib -target wasm-gc -workspace-path .
-            moonc build-package ./deps/hello19/source/lib/hello.mbt -w -a -alert -all -o ./target/wasm-gc/release/build/.mooncakes/just/hello19/lib/lib.core -pkg just/hello19/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources just/hello19/lib:./deps/hello19/source/lib -target wasm-gc -workspace-path ./deps/hello19
-            moonc build-package ./deps/hello19/source/top.mbt -w -a -alert -all -o ./target/wasm-gc/release/build/.mooncakes/just/hello19/hello19.core -pkg just/hello19 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources just/hello19:./deps/hello19/source -target wasm-gc -workspace-path ./deps/hello19
-            moonc build-package ./anyhow/main/main.mbt -o ./target/wasm-gc/release/build/main/main.core -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/build/lib/lib.mi:emmm -i ./target/wasm-gc/release/build/.mooncakes/just/hello19/hello19.mi:hello19 -i ./target/wasm-gc/release/build/.mooncakes/just/hello19/lib/lib.mi:lib -pkg-sources username/hello/main:./anyhow/main -target wasm-gc -workspace-path .
-            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/release/build/lib/lib.core ./target/wasm-gc/release/build/.mooncakes/just/hello19/hello19.core ./target/wasm-gc/release/build/.mooncakes/just/hello19/lib/lib.core ./target/wasm-gc/release/build/main/main.core -main username/hello/main -o ./target/wasm-gc/release/build/main/main.wasm -pkg-config-path ./anyhow/main/moon.pkg.json -pkg-sources username/hello/lib:./anyhow/lib -pkg-sources just/hello19:./deps/hello19/source -pkg-sources just/hello19/lib:./deps/hello19/source/lib -pkg-sources username/hello/main:./anyhow/main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc
+            moonc build-package ./anyhow/lib/hello.mbt -o ./target/wasm-gc/debug/build/lib/lib.core -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./anyhow/lib -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./deps/hello19/source/lib/hello.mbt -w -a -alert -all -o ./target/wasm-gc/debug/build/.mooncakes/just/hello19/lib/lib.core -pkg just/hello19/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources just/hello19/lib:./deps/hello19/source/lib -target wasm-gc -g -O0 -source-map -workspace-path ./deps/hello19
+            moonc build-package ./deps/hello19/source/top.mbt -w -a -alert -all -o ./target/wasm-gc/debug/build/.mooncakes/just/hello19/hello19.core -pkg just/hello19 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources just/hello19:./deps/hello19/source -target wasm-gc -g -O0 -source-map -workspace-path ./deps/hello19
+            moonc build-package ./anyhow/main/main.mbt -o ./target/wasm-gc/debug/build/main/main.core -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/build/lib/lib.mi:emmm -i ./target/wasm-gc/debug/build/.mooncakes/just/hello19/hello19.mi:hello19 -i ./target/wasm-gc/debug/build/.mooncakes/just/hello19/lib/lib.mi:lib -pkg-sources username/hello/main:./anyhow/main -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/debug/build/lib/lib.core ./target/wasm-gc/debug/build/.mooncakes/just/hello19/hello19.core ./target/wasm-gc/debug/build/.mooncakes/just/hello19/lib/lib.core ./target/wasm-gc/debug/build/main/main.core -main username/hello/main -o ./target/wasm-gc/debug/build/main/main.wasm -pkg-config-path ./anyhow/main/moon.pkg.json -pkg-sources username/hello/lib:./anyhow/lib -pkg-sources just/hello19:./deps/hello19/source -pkg-sources just/hello19/lib:./deps/hello19/source/lib -pkg-sources username/hello/main:./anyhow/main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc -g -O0 -source-map
         "#]],
     );
     check(
@@ -2572,7 +2572,7 @@ fn test_failed_to_fill_whole_buffer() {
             Finished. moon: ran 2 tasks, now up to date
         "#]],
     );
-    let moon_db_path = dir.join("./target/wasm-gc/release/check/check.moon_db");
+    let moon_db_path = dir.join("./target/wasm-gc/debug/check/check.moon_db");
     if moon_db_path.exists() {
         std::fs::remove_file(&moon_db_path).unwrap();
     }
@@ -2584,7 +2584,7 @@ fn test_failed_to_fill_whole_buffer() {
 
             Caused by:
                 0: failed to open n2 database
-                1: failed to open $ROOT/target/wasm-gc/release/check/check.moon_db
+                1: failed to open $ROOT/target/wasm-gc/debug/check/check.moon_db
                 2: failed to read
                 3: failed to fill whole buffer
         "#]],
@@ -2670,8 +2670,8 @@ fn test_trace_001() {
         expect![[r#"
             [
                 "moonbit::build::read",
-                "moonc build-package -error-format json $ROOT/main/main.mbt -o $ROOT/target/wasm-gc/release/build/main/main.core -pkg hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources hello/main:$ROOT/main -target wasm-gc -workspace-path $ROOT",
-                "moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core $ROOT/target/wasm-gc/release/build/main/main.core -main hello/main -o $ROOT/target/wasm-gc/release/build/main/main.wasm -pkg-config-path $ROOT/main/moon.pkg.json -pkg-sources hello/main:$ROOT/main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc",
+                "moonc build-package -error-format json $ROOT/main/main.mbt -o $ROOT/target/wasm-gc/debug/build/main/main.core -pkg hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources hello/main:$ROOT/main -target wasm-gc -g -O0 -source-map -workspace-path $ROOT",
+                "moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core $ROOT/target/wasm-gc/debug/build/main/main.core -main hello/main -o $ROOT/target/wasm-gc/debug/build/main/main.wasm -pkg-config-path $ROOT/main/moon.pkg.json -pkg-sources hello/main:$ROOT/main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc -g -O0 -source-map",
                 "work.run",
                 "main",
             ]"#]],
@@ -2685,12 +2685,12 @@ fn test_trace_001() {
 fn no_main_just_init() {
     let dir = TestDir::new("no_main_just_init.in");
     get_stdout(&dir, ["build"]);
-    let file = dir.join("target/wasm-gc/release/build/lib/lib.wasm");
+    let file = dir.join("target/wasm-gc/debug/build/lib/lib.wasm");
     assert!(file.exists());
 
     let out = snapbox::cmd::Command::new("moonrun")
         .current_dir(&dir)
-        .args(["./target/wasm-gc/release/build/lib/lib.wasm"])
+        .args(["./target/wasm-gc/debug/build/lib/lib.wasm"])
         .assert()
         .success()
         .get_output()
@@ -2898,9 +2898,9 @@ fn test_use_cc_for_native_release() {
             ),
             expect![[r#"
                 cc -o ./target/native/release/build/runtime.o -I$MOON_HOME/include -g -c -fwrapv -fno-strict-aliasing -O2 $MOON_HOME/lib/runtime.c
-                moonc build-package ./lib/hello.mbt -o ./target/native/release/build/lib/lib.core -pkg moonbitlang/hello/lib -std-path $MOON_HOME/lib/core/target/native/release/bundle -pkg-sources moonbitlang/hello/lib:./lib -target native -workspace-path .
-                moonc build-package ./main/main.mbt -o ./target/native/release/build/main/main.core -pkg moonbitlang/hello/main -is-main -std-path $MOON_HOME/lib/core/target/native/release/bundle -i ./target/native/release/build/lib/lib.mi:lib -pkg-sources moonbitlang/hello/main:./main -target native -workspace-path .
-                moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/release/build/lib/lib.core ./target/native/release/build/main/main.core -main moonbitlang/hello/main -o ./target/native/release/build/main/main.c -pkg-config-path ./main/moon.pkg.json -pkg-sources moonbitlang/hello/lib:./lib -pkg-sources moonbitlang/hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target native
+                moonc build-package ./lib/hello.mbt -o ./target/native/release/build/lib/lib.core -pkg moonbitlang/hello/lib -std-path $MOON_HOME/lib/core/target/native/release/bundle -pkg-sources moonbitlang/hello/lib:./lib -target native -g -workspace-path .
+                moonc build-package ./main/main.mbt -o ./target/native/release/build/main/main.core -pkg moonbitlang/hello/main -is-main -std-path $MOON_HOME/lib/core/target/native/release/bundle -i ./target/native/release/build/lib/lib.mi:lib -pkg-sources moonbitlang/hello/main:./main -target native -g -workspace-path .
+                moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/release/build/lib/lib.core ./target/native/release/build/main/main.core -main moonbitlang/hello/main -o ./target/native/release/build/main/main.c -pkg-config-path ./main/moon.pkg.json -pkg-sources moonbitlang/hello/lib:./lib -pkg-sources moonbitlang/hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target native -g
                 cc -o ./target/native/release/build/main/main.exe -I$MOON_HOME/include -fwrapv -fno-strict-aliasing -O2 $MOON_HOME/lib/libmoonbitrun.o ./target/native/release/build/main/main.c ./target/native/release/build/runtime.o -lm
             "#]],
         );
@@ -2911,11 +2911,11 @@ fn test_use_cc_for_native_release() {
                 ["build", "--target", "native", "--sort-input", "--dry-run"],
             ),
             expect![[r#"
-                cc -o ./target/native/release/build/runtime.o -I$MOON_HOME/include -g -c -fwrapv -fno-strict-aliasing -O2 $MOON_HOME/lib/runtime.c
-                moonc build-package ./lib/hello.mbt -o ./target/native/release/build/lib/lib.core -pkg moonbitlang/hello/lib -std-path $MOON_HOME/lib/core/target/native/release/bundle -pkg-sources moonbitlang/hello/lib:./lib -target native -workspace-path .
-                moonc build-package ./main/main.mbt -o ./target/native/release/build/main/main.core -pkg moonbitlang/hello/main -is-main -std-path $MOON_HOME/lib/core/target/native/release/bundle -i ./target/native/release/build/lib/lib.mi:lib -pkg-sources moonbitlang/hello/main:./main -target native -workspace-path .
-                moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/release/build/lib/lib.core ./target/native/release/build/main/main.core -main moonbitlang/hello/main -o ./target/native/release/build/main/main.c -pkg-config-path ./main/moon.pkg.json -pkg-sources moonbitlang/hello/lib:./lib -pkg-sources moonbitlang/hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target native
-                cc -o ./target/native/release/build/main/main.exe -I$MOON_HOME/include -fwrapv -fno-strict-aliasing -O2 $MOON_HOME/lib/libmoonbitrun.o ./target/native/release/build/main/main.c ./target/native/release/build/runtime.o -lm
+                cc -o ./target/native/debug/build/runtime.o -I$MOON_HOME/include -g -c -fwrapv -fno-strict-aliasing -O2 $MOON_HOME/lib/runtime.c
+                moonc build-package ./lib/hello.mbt -o ./target/native/debug/build/lib/lib.core -pkg moonbitlang/hello/lib -std-path $MOON_HOME/lib/core/target/native/release/bundle -pkg-sources moonbitlang/hello/lib:./lib -target native -g -O0 -workspace-path .
+                moonc build-package ./main/main.mbt -o ./target/native/debug/build/main/main.core -pkg moonbitlang/hello/main -is-main -std-path $MOON_HOME/lib/core/target/native/release/bundle -i ./target/native/debug/build/lib/lib.mi:lib -pkg-sources moonbitlang/hello/main:./main -target native -g -O0 -workspace-path .
+                moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/debug/build/lib/lib.core ./target/native/debug/build/main/main.core -main moonbitlang/hello/main -o ./target/native/debug/build/main/main.c -pkg-config-path ./main/moon.pkg.json -pkg-sources moonbitlang/hello/lib:./lib -pkg-sources moonbitlang/hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target native -g -O0
+                cc -o ./target/native/debug/build/main/main.exe -I$MOON_HOME/include -g -fwrapv -fno-strict-aliasing -Og $MOON_HOME/lib/libmoonbitrun.o ./target/native/debug/build/main/main.c ./target/native/debug/build/runtime.o -lm
             "#]],
         );
         check(
@@ -2957,9 +2957,9 @@ fn test_use_cc_for_native_release() {
             ),
             expect![[r#"
                 cc -o ./target/native/release/build/runtime.o -I$MOON_HOME/include -g -c -fwrapv -fno-strict-aliasing -O2 $MOON_HOME/lib/runtime.c
-                moonc build-package ./lib/hello.mbt -o ./target/native/release/build/lib/lib.core -pkg moonbitlang/hello/lib -std-path $MOON_HOME/lib/core/target/native/release/bundle -pkg-sources moonbitlang/hello/lib:./lib -target native -workspace-path .
-                moonc build-package ./main/main.mbt -o ./target/native/release/build/main/main.core -pkg moonbitlang/hello/main -is-main -std-path $MOON_HOME/lib/core/target/native/release/bundle -i ./target/native/release/build/lib/lib.mi:lib -pkg-sources moonbitlang/hello/main:./main -target native -workspace-path .
-                moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/release/build/lib/lib.core ./target/native/release/build/main/main.core -main moonbitlang/hello/main -o ./target/native/release/build/main/main.c -pkg-config-path ./main/moon.pkg.json -pkg-sources moonbitlang/hello/lib:./lib -pkg-sources moonbitlang/hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target native
+                moonc build-package ./lib/hello.mbt -o ./target/native/release/build/lib/lib.core -pkg moonbitlang/hello/lib -std-path $MOON_HOME/lib/core/target/native/release/bundle -pkg-sources moonbitlang/hello/lib:./lib -target native -g -workspace-path .
+                moonc build-package ./main/main.mbt -o ./target/native/release/build/main/main.core -pkg moonbitlang/hello/main -is-main -std-path $MOON_HOME/lib/core/target/native/release/bundle -i ./target/native/release/build/lib/lib.mi:lib -pkg-sources moonbitlang/hello/main:./main -target native -g -workspace-path .
+                moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/release/build/lib/lib.core ./target/native/release/build/main/main.core -main moonbitlang/hello/main -o ./target/native/release/build/main/main.c -pkg-config-path ./main/moon.pkg.json -pkg-sources moonbitlang/hello/lib:./lib -pkg-sources moonbitlang/hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target native -g
                 cc -o ./target/native/release/build/main/main.exe -I$MOON_HOME/include -fwrapv -fno-strict-aliasing -O2 $MOON_HOME/lib/libmoonbitrun.o ./target/native/release/build/main/main.c ./target/native/release/build/runtime.o -lm
                 ./target/native/release/build/main/main.exe
             "#]],
@@ -2978,12 +2978,12 @@ fn test_use_cc_for_native_release() {
                 ],
             ),
             expect![[r#"
-                cc -o ./target/native/release/build/runtime.o -I$MOON_HOME/include -g -c -fwrapv -fno-strict-aliasing -O2 $MOON_HOME/lib/runtime.c
-                moonc build-package ./lib/hello.mbt -o ./target/native/release/build/lib/lib.core -pkg moonbitlang/hello/lib -std-path $MOON_HOME/lib/core/target/native/release/bundle -pkg-sources moonbitlang/hello/lib:./lib -target native -workspace-path .
-                moonc build-package ./main/main.mbt -o ./target/native/release/build/main/main.core -pkg moonbitlang/hello/main -is-main -std-path $MOON_HOME/lib/core/target/native/release/bundle -i ./target/native/release/build/lib/lib.mi:lib -pkg-sources moonbitlang/hello/main:./main -target native -workspace-path .
-                moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/release/build/lib/lib.core ./target/native/release/build/main/main.core -main moonbitlang/hello/main -o ./target/native/release/build/main/main.c -pkg-config-path ./main/moon.pkg.json -pkg-sources moonbitlang/hello/lib:./lib -pkg-sources moonbitlang/hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target native
-                cc -o ./target/native/release/build/main/main.exe -I$MOON_HOME/include -fwrapv -fno-strict-aliasing -O2 $MOON_HOME/lib/libmoonbitrun.o ./target/native/release/build/main/main.c ./target/native/release/build/runtime.o -lm
-                ./target/native/release/build/main/main.exe
+                cc -o ./target/native/debug/build/runtime.o -I$MOON_HOME/include -g -c -fwrapv -fno-strict-aliasing -O2 $MOON_HOME/lib/runtime.c
+                moonc build-package ./lib/hello.mbt -o ./target/native/debug/build/lib/lib.core -pkg moonbitlang/hello/lib -std-path $MOON_HOME/lib/core/target/native/release/bundle -pkg-sources moonbitlang/hello/lib:./lib -target native -g -O0 -workspace-path .
+                moonc build-package ./main/main.mbt -o ./target/native/debug/build/main/main.core -pkg moonbitlang/hello/main -is-main -std-path $MOON_HOME/lib/core/target/native/release/bundle -i ./target/native/debug/build/lib/lib.mi:lib -pkg-sources moonbitlang/hello/main:./main -target native -g -O0 -workspace-path .
+                moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/debug/build/lib/lib.core ./target/native/debug/build/main/main.core -main moonbitlang/hello/main -o ./target/native/debug/build/main/main.c -pkg-config-path ./main/moon.pkg.json -pkg-sources moonbitlang/hello/lib:./lib -pkg-sources moonbitlang/hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target native -g -O0
+                cc -o ./target/native/debug/build/main/main.exe -I$MOON_HOME/include -g -fwrapv -fno-strict-aliasing -Og $MOON_HOME/lib/libmoonbitrun.o ./target/native/debug/build/main/main.c ./target/native/debug/build/runtime.o -lm
+                ./target/native/debug/build/main/main.exe
             "#]],
         );
         check(
@@ -3026,27 +3026,27 @@ fn test_use_cc_for_native_release() {
             ),
             expect![[r#"
                 cc -o ./target/native/release/test/runtime.o -I$MOON_HOME/include -g -c -fwrapv -fno-strict-aliasing -O2 $MOON_HOME/lib/runtime.c
-                moonc build-package ./lib/hello.mbt -o ./target/native/release/test/lib/lib.core -pkg moonbitlang/hello/lib -std-path $MOON_HOME/lib/core/target/native/release/bundle -pkg-sources moonbitlang/hello/lib:./lib -target native -workspace-path .
+                moonc build-package ./lib/hello.mbt -o ./target/native/release/test/lib/lib.core -pkg moonbitlang/hello/lib -std-path $MOON_HOME/lib/core/target/native/release/bundle -pkg-sources moonbitlang/hello/lib:./lib -target native -g -workspace-path .
                 moon generate-test-driver --output-driver ./target/native/release/test/main/__generated_driver_for_internal_test.mbt --output-metadata ./target/native/release/test/main/__internal_test_info.json ./main/main.mbt --target native --pkg-name moonbitlang/hello/main --driver-kind internal
-                moonc build-package ./main/main.mbt ./target/native/release/test/main/__generated_driver_for_internal_test.mbt -o ./target/native/release/test/main/main.internal_test.core -pkg moonbitlang/hello/main -is-main -std-path $MOON_HOME/lib/core/target/native/release/bundle -i ./target/native/release/test/lib/lib.mi:lib -pkg-sources moonbitlang/hello/main:./main -target native -no-mi -test-mode -workspace-path .
-                moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/release/test/lib/lib.core ./target/native/release/test/main/main.internal_test.core -main moonbitlang/hello/main -o ./target/native/release/test/main/main.internal_test.c -test-mode -pkg-config-path ./main/moon.pkg.json -pkg-sources moonbitlang/hello/lib:./lib -pkg-sources moonbitlang/hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -exported_functions moonbit_test_driver_internal_execute,moonbit_test_driver_finish -target native
+                moonc build-package ./main/main.mbt ./target/native/release/test/main/__generated_driver_for_internal_test.mbt -o ./target/native/release/test/main/main.internal_test.core -pkg moonbitlang/hello/main -is-main -std-path $MOON_HOME/lib/core/target/native/release/bundle -i ./target/native/release/test/lib/lib.mi:lib -pkg-sources moonbitlang/hello/main:./main -target native -g -no-mi -test-mode -workspace-path .
+                moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/release/test/lib/lib.core ./target/native/release/test/main/main.internal_test.core -main moonbitlang/hello/main -o ./target/native/release/test/main/main.internal_test.c -test-mode -pkg-config-path ./main/moon.pkg.json -pkg-sources moonbitlang/hello/lib:./lib -pkg-sources moonbitlang/hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -exported_functions moonbit_test_driver_internal_execute,moonbit_test_driver_finish -target native -g
                 cc -o ./target/native/release/test/main/main.internal_test.exe -I$MOON_HOME/include -fwrapv -fno-strict-aliasing -O2 $MOON_HOME/lib/libmoonbitrun.o ./target/native/release/test/main/main.internal_test.c ./target/native/release/test/runtime.o -lm
-                moonc build-package ./main/main.mbt -o ./target/native/release/test/main/main.core -pkg moonbitlang/hello/main -is-main -std-path $MOON_HOME/lib/core/target/native/release/bundle -i ./target/native/release/test/lib/lib.mi:lib -pkg-sources moonbitlang/hello/main:./main -target native -workspace-path .
+                moonc build-package ./main/main.mbt -o ./target/native/release/test/main/main.core -pkg moonbitlang/hello/main -is-main -std-path $MOON_HOME/lib/core/target/native/release/bundle -i ./target/native/release/test/lib/lib.mi:lib -pkg-sources moonbitlang/hello/main:./main -target native -g -workspace-path .
                 moon generate-test-driver --output-driver ./target/native/release/test/main/__generated_driver_for_blackbox_test.mbt --output-metadata ./target/native/release/test/main/__blackbox_test_info.json --doctest-only ./main/main.mbt --target native --pkg-name moonbitlang/hello/main --driver-kind blackbox
-                moonc build-package ./target/native/release/test/main/__generated_driver_for_blackbox_test.mbt -doctest-only ./main/main.mbt -o ./target/native/release/test/main/main.blackbox_test.core -pkg moonbitlang/hello/main_blackbox_test -is-main -std-path $MOON_HOME/lib/core/target/native/release/bundle -i ./target/native/release/test/main/main.mi:main -i ./target/native/release/test/lib/lib.mi:lib -pkg-sources moonbitlang/hello/main_blackbox_test:./main -target native -blackbox-test -include-doctests -no-mi -test-mode -workspace-path .
-                moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/release/test/lib/lib.core ./target/native/release/test/main/main.core ./target/native/release/test/main/main.blackbox_test.core -main moonbitlang/hello/main_blackbox_test -o ./target/native/release/test/main/main.blackbox_test.c -test-mode -pkg-config-path ./main/moon.pkg.json -pkg-sources moonbitlang/hello/lib:./lib -pkg-sources moonbitlang/hello/main:./main -pkg-sources moonbitlang/hello/main_blackbox_test:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -exported_functions moonbit_test_driver_internal_execute,moonbit_test_driver_finish -target native
+                moonc build-package ./target/native/release/test/main/__generated_driver_for_blackbox_test.mbt -doctest-only ./main/main.mbt -o ./target/native/release/test/main/main.blackbox_test.core -pkg moonbitlang/hello/main_blackbox_test -is-main -std-path $MOON_HOME/lib/core/target/native/release/bundle -i ./target/native/release/test/main/main.mi:main -i ./target/native/release/test/lib/lib.mi:lib -pkg-sources moonbitlang/hello/main_blackbox_test:./main -target native -g -blackbox-test -include-doctests -no-mi -test-mode -workspace-path .
+                moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/release/test/lib/lib.core ./target/native/release/test/main/main.core ./target/native/release/test/main/main.blackbox_test.core -main moonbitlang/hello/main_blackbox_test -o ./target/native/release/test/main/main.blackbox_test.c -test-mode -pkg-config-path ./main/moon.pkg.json -pkg-sources moonbitlang/hello/lib:./lib -pkg-sources moonbitlang/hello/main:./main -pkg-sources moonbitlang/hello/main_blackbox_test:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -exported_functions moonbit_test_driver_internal_execute,moonbit_test_driver_finish -target native -g
                 cc -o ./target/native/release/test/main/main.blackbox_test.exe -I$MOON_HOME/include -fwrapv -fno-strict-aliasing -O2 $MOON_HOME/lib/libmoonbitrun.o ./target/native/release/test/main/main.blackbox_test.c ./target/native/release/test/runtime.o -lm
                 moon generate-test-driver --output-driver ./target/native/release/test/lib/__generated_driver_for_whitebox_test.mbt --output-metadata ./target/native/release/test/lib/__whitebox_test_info.json ./lib/hello_wbtest.mbt --target native --pkg-name moonbitlang/hello/lib --driver-kind whitebox
-                moonc build-package ./lib/hello.mbt ./lib/hello_wbtest.mbt ./target/native/release/test/lib/__generated_driver_for_whitebox_test.mbt -o ./target/native/release/test/lib/lib.whitebox_test.core -pkg moonbitlang/hello/lib -is-main -std-path $MOON_HOME/lib/core/target/native/release/bundle -pkg-sources moonbitlang/hello/lib:./lib -target native -whitebox-test -no-mi -test-mode -workspace-path .
-                moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/release/test/lib/lib.whitebox_test.core -main moonbitlang/hello/lib -o ./target/native/release/test/lib/lib.whitebox_test.c -test-mode -pkg-config-path ./lib/moon.pkg.json -pkg-sources moonbitlang/hello/lib:./lib -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -exported_functions moonbit_test_driver_internal_execute,moonbit_test_driver_finish -target native
+                moonc build-package ./lib/hello.mbt ./lib/hello_wbtest.mbt ./target/native/release/test/lib/__generated_driver_for_whitebox_test.mbt -o ./target/native/release/test/lib/lib.whitebox_test.core -pkg moonbitlang/hello/lib -is-main -std-path $MOON_HOME/lib/core/target/native/release/bundle -pkg-sources moonbitlang/hello/lib:./lib -target native -g -whitebox-test -no-mi -test-mode -workspace-path .
+                moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/release/test/lib/lib.whitebox_test.core -main moonbitlang/hello/lib -o ./target/native/release/test/lib/lib.whitebox_test.c -test-mode -pkg-config-path ./lib/moon.pkg.json -pkg-sources moonbitlang/hello/lib:./lib -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -exported_functions moonbit_test_driver_internal_execute,moonbit_test_driver_finish -target native -g
                 cc -o ./target/native/release/test/lib/lib.whitebox_test.exe -I$MOON_HOME/include -fwrapv -fno-strict-aliasing -O2 $MOON_HOME/lib/libmoonbitrun.o ./target/native/release/test/lib/lib.whitebox_test.c ./target/native/release/test/runtime.o -lm
                 moon generate-test-driver --output-driver ./target/native/release/test/lib/__generated_driver_for_internal_test.mbt --output-metadata ./target/native/release/test/lib/__internal_test_info.json ./lib/hello.mbt --target native --pkg-name moonbitlang/hello/lib --driver-kind internal
-                moonc build-package ./lib/hello.mbt ./target/native/release/test/lib/__generated_driver_for_internal_test.mbt -o ./target/native/release/test/lib/lib.internal_test.core -pkg moonbitlang/hello/lib -is-main -std-path $MOON_HOME/lib/core/target/native/release/bundle -pkg-sources moonbitlang/hello/lib:./lib -target native -no-mi -test-mode -workspace-path .
-                moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/release/test/lib/lib.internal_test.core -main moonbitlang/hello/lib -o ./target/native/release/test/lib/lib.internal_test.c -test-mode -pkg-config-path ./lib/moon.pkg.json -pkg-sources moonbitlang/hello/lib:./lib -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -exported_functions moonbit_test_driver_internal_execute,moonbit_test_driver_finish -target native
+                moonc build-package ./lib/hello.mbt ./target/native/release/test/lib/__generated_driver_for_internal_test.mbt -o ./target/native/release/test/lib/lib.internal_test.core -pkg moonbitlang/hello/lib -is-main -std-path $MOON_HOME/lib/core/target/native/release/bundle -pkg-sources moonbitlang/hello/lib:./lib -target native -g -no-mi -test-mode -workspace-path .
+                moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/release/test/lib/lib.internal_test.core -main moonbitlang/hello/lib -o ./target/native/release/test/lib/lib.internal_test.c -test-mode -pkg-config-path ./lib/moon.pkg.json -pkg-sources moonbitlang/hello/lib:./lib -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -exported_functions moonbit_test_driver_internal_execute,moonbit_test_driver_finish -target native -g
                 cc -o ./target/native/release/test/lib/lib.internal_test.exe -I$MOON_HOME/include -fwrapv -fno-strict-aliasing -O2 $MOON_HOME/lib/libmoonbitrun.o ./target/native/release/test/lib/lib.internal_test.c ./target/native/release/test/runtime.o -lm
                 moon generate-test-driver --output-driver ./target/native/release/test/lib/__generated_driver_for_blackbox_test.mbt --output-metadata ./target/native/release/test/lib/__blackbox_test_info.json --doctest-only ./lib/hello.mbt --target native --pkg-name moonbitlang/hello/lib --driver-kind blackbox
-                moonc build-package ./target/native/release/test/lib/__generated_driver_for_blackbox_test.mbt -doctest-only ./lib/hello.mbt -o ./target/native/release/test/lib/lib.blackbox_test.core -pkg moonbitlang/hello/lib_blackbox_test -is-main -std-path $MOON_HOME/lib/core/target/native/release/bundle -i ./target/native/release/test/lib/lib.mi:lib -pkg-sources moonbitlang/hello/lib_blackbox_test:./lib -target native -blackbox-test -include-doctests -no-mi -test-mode -workspace-path .
-                moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/release/test/lib/lib.core ./target/native/release/test/lib/lib.blackbox_test.core -main moonbitlang/hello/lib_blackbox_test -o ./target/native/release/test/lib/lib.blackbox_test.c -test-mode -pkg-config-path ./lib/moon.pkg.json -pkg-sources moonbitlang/hello/lib:./lib -pkg-sources moonbitlang/hello/lib_blackbox_test:./lib -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -exported_functions moonbit_test_driver_internal_execute,moonbit_test_driver_finish -target native
+                moonc build-package ./target/native/release/test/lib/__generated_driver_for_blackbox_test.mbt -doctest-only ./lib/hello.mbt -o ./target/native/release/test/lib/lib.blackbox_test.core -pkg moonbitlang/hello/lib_blackbox_test -is-main -std-path $MOON_HOME/lib/core/target/native/release/bundle -i ./target/native/release/test/lib/lib.mi:lib -pkg-sources moonbitlang/hello/lib_blackbox_test:./lib -target native -g -blackbox-test -include-doctests -no-mi -test-mode -workspace-path .
+                moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/release/test/lib/lib.core ./target/native/release/test/lib/lib.blackbox_test.core -main moonbitlang/hello/lib_blackbox_test -o ./target/native/release/test/lib/lib.blackbox_test.c -test-mode -pkg-config-path ./lib/moon.pkg.json -pkg-sources moonbitlang/hello/lib:./lib -pkg-sources moonbitlang/hello/lib_blackbox_test:./lib -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -exported_functions moonbit_test_driver_internal_execute,moonbit_test_driver_finish -target native -g
                 cc -o ./target/native/release/test/lib/lib.blackbox_test.exe -I$MOON_HOME/include -fwrapv -fno-strict-aliasing -O2 $MOON_HOME/lib/libmoonbitrun.o ./target/native/release/test/lib/lib.blackbox_test.c ./target/native/release/test/runtime.o -lm
             "#]],
         );
@@ -3287,15 +3287,15 @@ fn test_native_backend_cc_flags_with_env_override() {
             [("MOON_CC", "x86_64-unknown-fake_os-fake_libc-gcc")],
         ),
         expect![[r#"
-            x86_64-unknown-fake_os-fake_libc-gcc -o ./target/native/release/build/lib/stub.o -I$MOON_HOME/include -c -fwrapv -fno-strict-aliasing ./lib/stub.c stubccflags
-            x86_64-unknown-fake_os-fake_libc-gcc -o ./target/native/release/build/runtime.o -I$MOON_HOME/include -g -c -fwrapv -fno-strict-aliasing -O2 $MOON_HOME/lib/runtime.c
-            moonc build-package ./lib/hello.mbt -o ./target/native/release/build/lib/lib.core -pkg moon_new/lib -std-path $MOON_HOME/lib/core/target/native/release/bundle -pkg-sources moon_new/lib:./lib -target native -workspace-path .
-            moonc build-package ./main/main.mbt -o ./target/native/release/build/main/main.core -pkg moon_new/main -is-main -std-path $MOON_HOME/lib/core/target/native/release/bundle -i ./target/native/release/build/lib/lib.mi:lib -pkg-sources moon_new/main:./main -target native -workspace-path .
-            moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/release/build/lib/lib.core ./target/native/release/build/main/main.core -main moon_new/main -o ./target/native/release/build/main/main.c -pkg-config-path ./main/moon.pkg.json -pkg-sources moon_new/lib:./lib -pkg-sources moon_new/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target native
-            x86_64-unknown-fake_os-fake_libc-ar -r -c -s ./target/native/release/build/lib/liblib.a ./target/native/release/build/lib/stub.o
-            x86_64-unknown-fake_os-fake_libc-gcc -o ./target/native/release/build/main/main.exe -I$MOON_HOME/include -fwrapv -fno-strict-aliasing ./target/native/release/build/main/main.c ./target/native/release/build/runtime.o ./target/native/release/build/lib/liblib.a -lm ccflags fasd cclinkflags
-            moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/release/build/lib/lib.core -main moon_new/lib -o ./target/native/release/build/lib/lib.c -pkg-config-path ./lib/moon.pkg.json -pkg-sources moon_new/lib:./lib -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target native
-            x86_64-unknown-fake_os-fake_libc-gcc -o ./target/native/release/build/lib/lib.exe -I$MOON_HOME/include -fwrapv -fno-strict-aliasing ./target/native/release/build/lib/lib.c ./target/native/release/build/runtime.o ./target/native/release/build/lib/liblib.a -lm ccflags fasd cclinkflags
+            x86_64-unknown-fake_os-fake_libc-gcc -o ./target/native/debug/build/lib/stub.o -I$MOON_HOME/include -g -c -fwrapv -fno-strict-aliasing ./lib/stub.c stubccflags
+            x86_64-unknown-fake_os-fake_libc-gcc -o ./target/native/debug/build/runtime.o -I$MOON_HOME/include -g -c -fwrapv -fno-strict-aliasing -O2 $MOON_HOME/lib/runtime.c
+            moonc build-package ./lib/hello.mbt -o ./target/native/debug/build/lib/lib.core -pkg moon_new/lib -std-path $MOON_HOME/lib/core/target/native/release/bundle -pkg-sources moon_new/lib:./lib -target native -g -O0 -workspace-path .
+            moonc build-package ./main/main.mbt -o ./target/native/debug/build/main/main.core -pkg moon_new/main -is-main -std-path $MOON_HOME/lib/core/target/native/release/bundle -i ./target/native/debug/build/lib/lib.mi:lib -pkg-sources moon_new/main:./main -target native -g -O0 -workspace-path .
+            moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/debug/build/lib/lib.core ./target/native/debug/build/main/main.core -main moon_new/main -o ./target/native/debug/build/main/main.c -pkg-config-path ./main/moon.pkg.json -pkg-sources moon_new/lib:./lib -pkg-sources moon_new/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target native -g -O0
+            x86_64-unknown-fake_os-fake_libc-ar -r -c -s ./target/native/debug/build/lib/liblib.a ./target/native/debug/build/lib/stub.o
+            x86_64-unknown-fake_os-fake_libc-gcc -o ./target/native/debug/build/main/main.exe -I$MOON_HOME/include -g -fwrapv -fno-strict-aliasing ./target/native/debug/build/main/main.c ./target/native/debug/build/runtime.o ./target/native/debug/build/lib/liblib.a -lm ccflags fasd cclinkflags
+            moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/debug/build/lib/lib.core -main moon_new/lib -o ./target/native/debug/build/lib/lib.c -pkg-config-path ./lib/moon.pkg.json -pkg-sources moon_new/lib:./lib -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target native -g -O0
+            x86_64-unknown-fake_os-fake_libc-gcc -o ./target/native/debug/build/lib/lib.exe -I$MOON_HOME/include -g -fwrapv -fno-strict-aliasing ./target/native/debug/build/lib/lib.c ./target/native/debug/build/runtime.o ./target/native/debug/build/lib/liblib.a -lm ccflags fasd cclinkflags
         "#]],
     );
 
@@ -3344,17 +3344,17 @@ fn test_native_backend_cc_flags_with_env_override() {
             [("MOON_CC", "x86_64-unknown-fake_os-fake_libc-gcc")],
         ),
         expect![[r#"
-            x86_64-unknown-fake_os-fake_libc-gcc -o ./target/native/release/build/lib/stub.o -I$MOON_HOME/include -c -fwrapv -fno-strict-aliasing ./lib/stub.c stubccflags
-            x86_64-unknown-fake_os-fake_libc-gcc -o ./target/native/release/build/runtime.o -I$MOON_HOME/include -g -c -fwrapv -fno-strict-aliasing -O2 $MOON_HOME/lib/runtime.c
-            moonc build-package ./lib/hello.mbt -o ./target/native/release/build/lib/lib.core -pkg moon_new/lib -std-path $MOON_HOME/lib/core/target/native/release/bundle -pkg-sources moon_new/lib:./lib -target native -workspace-path .
-            moonc build-package ./main/main.mbt -o ./target/native/release/build/main/main.core -pkg moon_new/main -is-main -std-path $MOON_HOME/lib/core/target/native/release/bundle -i ./target/native/release/build/lib/lib.mi:lib -pkg-sources moon_new/main:./main -target native -workspace-path .
-            moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/release/build/lib/lib.core ./target/native/release/build/main/main.core -main moon_new/main -o ./target/native/release/build/main/main.c -pkg-config-path ./main/moon.pkg.json -pkg-sources moon_new/lib:./lib -pkg-sources moon_new/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target native
-            x86_64-unknown-fake_os-fake_libc-ar -r -c -s ./target/native/release/build/lib/liblib.a ./target/native/release/build/lib/stub.o
-            x86_64-unknown-fake_os-fake_libc-gcc -o ./target/native/release/build/main/main.exe -I$MOON_HOME/include -fwrapv -fno-strict-aliasing ./target/native/release/build/main/main.c ./target/native/release/build/runtime.o ./target/native/release/build/lib/liblib.a -lm ccflags fasd cclinkflags
-            moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/release/build/lib/lib.core -main moon_new/lib -o ./target/native/release/build/lib/lib.c -pkg-config-path ./lib/moon.pkg.json -pkg-sources moon_new/lib:./lib -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target native
-            x86_64-unknown-fake_os-fake_libc-gcc -o ./target/native/release/build/lib/lib.exe -I$MOON_HOME/include -fwrapv -fno-strict-aliasing ./target/native/release/build/lib/lib.c ./target/native/release/build/runtime.o ./target/native/release/build/lib/liblib.a -lm ccflags fasd cclinkflags
-            ./target/native/release/build/lib/lib.exe
-            ./target/native/release/build/main/main.exe
+            x86_64-unknown-fake_os-fake_libc-gcc -o ./target/native/debug/build/lib/stub.o -I$MOON_HOME/include -g -c -fwrapv -fno-strict-aliasing ./lib/stub.c stubccflags
+            x86_64-unknown-fake_os-fake_libc-gcc -o ./target/native/debug/build/runtime.o -I$MOON_HOME/include -g -c -fwrapv -fno-strict-aliasing -O2 $MOON_HOME/lib/runtime.c
+            moonc build-package ./lib/hello.mbt -o ./target/native/debug/build/lib/lib.core -pkg moon_new/lib -std-path $MOON_HOME/lib/core/target/native/release/bundle -pkg-sources moon_new/lib:./lib -target native -g -O0 -workspace-path .
+            moonc build-package ./main/main.mbt -o ./target/native/debug/build/main/main.core -pkg moon_new/main -is-main -std-path $MOON_HOME/lib/core/target/native/release/bundle -i ./target/native/debug/build/lib/lib.mi:lib -pkg-sources moon_new/main:./main -target native -g -O0 -workspace-path .
+            moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/debug/build/lib/lib.core ./target/native/debug/build/main/main.core -main moon_new/main -o ./target/native/debug/build/main/main.c -pkg-config-path ./main/moon.pkg.json -pkg-sources moon_new/lib:./lib -pkg-sources moon_new/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target native -g -O0
+            x86_64-unknown-fake_os-fake_libc-ar -r -c -s ./target/native/debug/build/lib/liblib.a ./target/native/debug/build/lib/stub.o
+            x86_64-unknown-fake_os-fake_libc-gcc -o ./target/native/debug/build/main/main.exe -I$MOON_HOME/include -g -fwrapv -fno-strict-aliasing ./target/native/debug/build/main/main.c ./target/native/debug/build/runtime.o ./target/native/debug/build/lib/liblib.a -lm ccflags fasd cclinkflags
+            moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/debug/build/lib/lib.core -main moon_new/lib -o ./target/native/debug/build/lib/lib.c -pkg-config-path ./lib/moon.pkg.json -pkg-sources moon_new/lib:./lib -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target native -g -O0
+            x86_64-unknown-fake_os-fake_libc-gcc -o ./target/native/debug/build/lib/lib.exe -I$MOON_HOME/include -g -fwrapv -fno-strict-aliasing ./target/native/debug/build/lib/lib.c ./target/native/debug/build/runtime.o ./target/native/debug/build/lib/liblib.a -lm ccflags fasd cclinkflags
+            ./target/native/debug/build/lib/lib.exe
+            ./target/native/debug/build/main/main.exe
         "#]],
     );
 
@@ -3374,15 +3374,15 @@ fn test_native_backend_cc_flags_with_env_override() {
             ],
         ),
         expect![[r#"
-            /some/path/A/x86_64-unknown-fake_os-fake_libc-gcc -o ./target/native/release/build/lib/stub.o -I$MOON_HOME/include -c -fwrapv -fno-strict-aliasing ./lib/stub.c stubccflags
-            /some/path/A/x86_64-unknown-fake_os-fake_libc-gcc -o ./target/native/release/build/runtime.o -I$MOON_HOME/include -g -c -fwrapv -fno-strict-aliasing -O2 $MOON_HOME/lib/runtime.c
-            moonc build-package ./lib/hello.mbt -o ./target/native/release/build/lib/lib.core -pkg moon_new/lib -std-path $MOON_HOME/lib/core/target/native/release/bundle -pkg-sources moon_new/lib:./lib -target native -workspace-path .
-            moonc build-package ./main/main.mbt -o ./target/native/release/build/main/main.core -pkg moon_new/main -is-main -std-path $MOON_HOME/lib/core/target/native/release/bundle -i ./target/native/release/build/lib/lib.mi:lib -pkg-sources moon_new/main:./main -target native -workspace-path .
-            moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/release/build/lib/lib.core ./target/native/release/build/main/main.core -main moon_new/main -o ./target/native/release/build/main/main.c -pkg-config-path ./main/moon.pkg.json -pkg-sources moon_new/lib:./lib -pkg-sources moon_new/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target native
-            /other/path/B/x86_64-unknown-fake_os-fake_libc-ar -r -c -s ./target/native/release/build/lib/liblib.a ./target/native/release/build/lib/stub.o
-            /some/path/A/x86_64-unknown-fake_os-fake_libc-gcc -o ./target/native/release/build/main/main.exe -I$MOON_HOME/include -fwrapv -fno-strict-aliasing ./target/native/release/build/main/main.c ./target/native/release/build/runtime.o ./target/native/release/build/lib/liblib.a -lm ccflags fasd cclinkflags
-            moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/release/build/lib/lib.core -main moon_new/lib -o ./target/native/release/build/lib/lib.c -pkg-config-path ./lib/moon.pkg.json -pkg-sources moon_new/lib:./lib -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target native
-            /some/path/A/x86_64-unknown-fake_os-fake_libc-gcc -o ./target/native/release/build/lib/lib.exe -I$MOON_HOME/include -fwrapv -fno-strict-aliasing ./target/native/release/build/lib/lib.c ./target/native/release/build/runtime.o ./target/native/release/build/lib/liblib.a -lm ccflags fasd cclinkflags
+            /some/path/A/x86_64-unknown-fake_os-fake_libc-gcc -o ./target/native/debug/build/lib/stub.o -I$MOON_HOME/include -g -c -fwrapv -fno-strict-aliasing ./lib/stub.c stubccflags
+            /some/path/A/x86_64-unknown-fake_os-fake_libc-gcc -o ./target/native/debug/build/runtime.o -I$MOON_HOME/include -g -c -fwrapv -fno-strict-aliasing -O2 $MOON_HOME/lib/runtime.c
+            moonc build-package ./lib/hello.mbt -o ./target/native/debug/build/lib/lib.core -pkg moon_new/lib -std-path $MOON_HOME/lib/core/target/native/release/bundle -pkg-sources moon_new/lib:./lib -target native -g -O0 -workspace-path .
+            moonc build-package ./main/main.mbt -o ./target/native/debug/build/main/main.core -pkg moon_new/main -is-main -std-path $MOON_HOME/lib/core/target/native/release/bundle -i ./target/native/debug/build/lib/lib.mi:lib -pkg-sources moon_new/main:./main -target native -g -O0 -workspace-path .
+            moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/debug/build/lib/lib.core ./target/native/debug/build/main/main.core -main moon_new/main -o ./target/native/debug/build/main/main.c -pkg-config-path ./main/moon.pkg.json -pkg-sources moon_new/lib:./lib -pkg-sources moon_new/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target native -g -O0
+            /other/path/B/x86_64-unknown-fake_os-fake_libc-ar -r -c -s ./target/native/debug/build/lib/liblib.a ./target/native/debug/build/lib/stub.o
+            /some/path/A/x86_64-unknown-fake_os-fake_libc-gcc -o ./target/native/debug/build/main/main.exe -I$MOON_HOME/include -g -fwrapv -fno-strict-aliasing ./target/native/debug/build/main/main.c ./target/native/debug/build/runtime.o ./target/native/debug/build/lib/liblib.a -lm ccflags fasd cclinkflags
+            moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/debug/build/lib/lib.core -main moon_new/lib -o ./target/native/debug/build/lib/lib.c -pkg-config-path ./lib/moon.pkg.json -pkg-sources moon_new/lib:./lib -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target native -g -O0
+            /some/path/A/x86_64-unknown-fake_os-fake_libc-gcc -o ./target/native/debug/build/lib/lib.exe -I$MOON_HOME/include -g -fwrapv -fno-strict-aliasing ./target/native/debug/build/lib/lib.c ./target/native/debug/build/runtime.o ./target/native/debug/build/lib/liblib.a -lm ccflags fasd cclinkflags
         "#]],
     );
 
@@ -3449,17 +3449,17 @@ fn test_native_backend_cc_flags_with_env_override() {
             ],
         ),
         expect![[r#"
-            /some/path/A/x86_64-unknown-fake_os-fake_libc-gcc -o ./target/native/release/build/lib/stub.o -I$MOON_HOME/include -c -fwrapv -fno-strict-aliasing ./lib/stub.c stubccflags
-            /some/path/A/x86_64-unknown-fake_os-fake_libc-gcc -o ./target/native/release/build/runtime.o -I$MOON_HOME/include -g -c -fwrapv -fno-strict-aliasing -O2 $MOON_HOME/lib/runtime.c
-            moonc build-package ./lib/hello.mbt -o ./target/native/release/build/lib/lib.core -pkg moon_new/lib -std-path $MOON_HOME/lib/core/target/native/release/bundle -pkg-sources moon_new/lib:./lib -target native -workspace-path .
-            moonc build-package ./main/main.mbt -o ./target/native/release/build/main/main.core -pkg moon_new/main -is-main -std-path $MOON_HOME/lib/core/target/native/release/bundle -i ./target/native/release/build/lib/lib.mi:lib -pkg-sources moon_new/main:./main -target native -workspace-path .
-            moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/release/build/lib/lib.core ./target/native/release/build/main/main.core -main moon_new/main -o ./target/native/release/build/main/main.c -pkg-config-path ./main/moon.pkg.json -pkg-sources moon_new/lib:./lib -pkg-sources moon_new/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target native
-            /other/path/B/x86_64-unknown-fake_os-fake_libc-ar -r -c -s ./target/native/release/build/lib/liblib.a ./target/native/release/build/lib/stub.o
-            /some/path/A/x86_64-unknown-fake_os-fake_libc-gcc -o ./target/native/release/build/main/main.exe -I$MOON_HOME/include -fwrapv -fno-strict-aliasing ./target/native/release/build/main/main.c ./target/native/release/build/runtime.o ./target/native/release/build/lib/liblib.a -lm ccflags fasd cclinkflags
-            moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/release/build/lib/lib.core -main moon_new/lib -o ./target/native/release/build/lib/lib.c -pkg-config-path ./lib/moon.pkg.json -pkg-sources moon_new/lib:./lib -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target native
-            /some/path/A/x86_64-unknown-fake_os-fake_libc-gcc -o ./target/native/release/build/lib/lib.exe -I$MOON_HOME/include -fwrapv -fno-strict-aliasing ./target/native/release/build/lib/lib.c ./target/native/release/build/runtime.o ./target/native/release/build/lib/liblib.a -lm ccflags fasd cclinkflags
-            ./target/native/release/build/lib/lib.exe
-            ./target/native/release/build/main/main.exe
+            /some/path/A/x86_64-unknown-fake_os-fake_libc-gcc -o ./target/native/debug/build/lib/stub.o -I$MOON_HOME/include -g -c -fwrapv -fno-strict-aliasing ./lib/stub.c stubccflags
+            /some/path/A/x86_64-unknown-fake_os-fake_libc-gcc -o ./target/native/debug/build/runtime.o -I$MOON_HOME/include -g -c -fwrapv -fno-strict-aliasing -O2 $MOON_HOME/lib/runtime.c
+            moonc build-package ./lib/hello.mbt -o ./target/native/debug/build/lib/lib.core -pkg moon_new/lib -std-path $MOON_HOME/lib/core/target/native/release/bundle -pkg-sources moon_new/lib:./lib -target native -g -O0 -workspace-path .
+            moonc build-package ./main/main.mbt -o ./target/native/debug/build/main/main.core -pkg moon_new/main -is-main -std-path $MOON_HOME/lib/core/target/native/release/bundle -i ./target/native/debug/build/lib/lib.mi:lib -pkg-sources moon_new/main:./main -target native -g -O0 -workspace-path .
+            moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/debug/build/lib/lib.core ./target/native/debug/build/main/main.core -main moon_new/main -o ./target/native/debug/build/main/main.c -pkg-config-path ./main/moon.pkg.json -pkg-sources moon_new/lib:./lib -pkg-sources moon_new/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target native -g -O0
+            /other/path/B/x86_64-unknown-fake_os-fake_libc-ar -r -c -s ./target/native/debug/build/lib/liblib.a ./target/native/debug/build/lib/stub.o
+            /some/path/A/x86_64-unknown-fake_os-fake_libc-gcc -o ./target/native/debug/build/main/main.exe -I$MOON_HOME/include -g -fwrapv -fno-strict-aliasing ./target/native/debug/build/main/main.c ./target/native/debug/build/runtime.o ./target/native/debug/build/lib/liblib.a -lm ccflags fasd cclinkflags
+            moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/debug/build/lib/lib.core -main moon_new/lib -o ./target/native/debug/build/lib/lib.c -pkg-config-path ./lib/moon.pkg.json -pkg-sources moon_new/lib:./lib -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target native -g -O0
+            /some/path/A/x86_64-unknown-fake_os-fake_libc-gcc -o ./target/native/debug/build/lib/lib.exe -I$MOON_HOME/include -g -fwrapv -fno-strict-aliasing ./target/native/debug/build/lib/lib.c ./target/native/debug/build/runtime.o ./target/native/debug/build/lib/liblib.a -lm ccflags fasd cclinkflags
+            ./target/native/debug/build/lib/lib.exe
+            ./target/native/debug/build/main/main.exe
         "#]],
     );
 }
@@ -3474,13 +3474,13 @@ fn test_native_backend_tcc_run() {
             ["build", "--target", "native", "--dry-run", "--sort-input"],
         ),
         expect![[r#"
-            stubcc -o ./target/native/release/build/lib/stub.o -I$MOON_HOME/include -c -fwrapv -fno-strict-aliasing ./lib/stub.c stubccflags
-            cc -o ./target/native/release/build/runtime.o -I$MOON_HOME/include -g -c -fwrapv -fno-strict-aliasing -O2 $MOON_HOME/lib/runtime.c
-            moonc build-package ./lib/hello.mbt -o ./target/native/release/build/lib/lib.core -pkg moon_new/lib -std-path $MOON_HOME/lib/core/target/native/release/bundle -pkg-sources moon_new/lib:./lib -target native -workspace-path .
-            moonc build-package ./main/main.mbt -o ./target/native/release/build/main/main.core -pkg moon_new/main -is-main -std-path $MOON_HOME/lib/core/target/native/release/bundle -i ./target/native/release/build/lib/lib.mi:lib -pkg-sources moon_new/main:./main -target native -workspace-path .
-            moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/release/build/lib/lib.core ./target/native/release/build/main/main.core -main moon_new/main -o ./target/native/release/build/main/main.c -pkg-config-path ./main/moon.pkg.json -pkg-sources moon_new/lib:./lib -pkg-sources moon_new/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target native
-            stubar -r -c -s ./target/native/release/build/lib/liblib.a ./target/native/release/build/lib/stub.o
-            cc -o ./target/native/release/build/main/main.exe -I$MOON_HOME/include -fwrapv -fno-strict-aliasing -O2 $MOON_HOME/lib/libmoonbitrun.o ./target/native/release/build/main/main.c ./target/native/release/build/runtime.o ./target/native/release/build/lib/liblib.a -lm
+            stubcc -o ./target/native/debug/build/lib/stub.o -I$MOON_HOME/include -g -c -fwrapv -fno-strict-aliasing ./lib/stub.c stubccflags
+            cc -o ./target/native/debug/build/runtime.o -I$MOON_HOME/include -g -c -fwrapv -fno-strict-aliasing -O2 $MOON_HOME/lib/runtime.c
+            moonc build-package ./lib/hello.mbt -o ./target/native/debug/build/lib/lib.core -pkg moon_new/lib -std-path $MOON_HOME/lib/core/target/native/release/bundle -pkg-sources moon_new/lib:./lib -target native -g -O0 -workspace-path .
+            moonc build-package ./main/main.mbt -o ./target/native/debug/build/main/main.core -pkg moon_new/main -is-main -std-path $MOON_HOME/lib/core/target/native/release/bundle -i ./target/native/debug/build/lib/lib.mi:lib -pkg-sources moon_new/main:./main -target native -g -O0 -workspace-path .
+            moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/debug/build/lib/lib.core ./target/native/debug/build/main/main.core -main moon_new/main -o ./target/native/debug/build/main/main.c -pkg-config-path ./main/moon.pkg.json -pkg-sources moon_new/lib:./lib -pkg-sources moon_new/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target native -g -O0
+            stubar -r -c -s ./target/native/debug/build/lib/liblib.a ./target/native/debug/build/lib/stub.o
+            cc -o ./target/native/debug/build/main/main.exe -I$MOON_HOME/include -g -fwrapv -fno-strict-aliasing -Og $MOON_HOME/lib/libmoonbitrun.o ./target/native/debug/build/main/main.c ./target/native/debug/build/runtime.o ./target/native/debug/build/lib/liblib.a -lm
         "#]],
     );
 
@@ -3546,31 +3546,31 @@ fn test_moon_check_filter_package() {
     check(
         get_stdout(&dir, ["check", "-p", "A", "--dry-run", "--sort-input"]),
         expect![[r#"
-            moonc check ./A/hello.mbt ./A/test.mbt ./A/hello_wbtest.mbt -o ./target/wasm-gc/release/check/A/A.whitebox_test.mi -pkg username/hello/A -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/A:./A -target wasm-gc -whitebox-test -workspace-path .
-            moonc check ./A/hello.mbt ./A/test.mbt -o ./target/wasm-gc/release/check/A/A.mi -pkg username/hello/A -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/A:./A -target wasm-gc -workspace-path .
-            moonc check ./A/hello_test.mbt -doctest-only ./A/hello.mbt -doctest-only ./A/test.mbt -include-doctests -o ./target/wasm-gc/release/check/A/A.blackbox_test.mi -pkg username/hello/A_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/A/A.mi:A -pkg-sources username/hello/A_blackbox_test:./A -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./A/hello.mbt ./A/test.mbt ./A/hello_wbtest.mbt -o ./target/wasm-gc/debug/check/A/A.whitebox_test.mi -pkg username/hello/A -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/A:./A -target wasm-gc -whitebox-test -workspace-path .
+            moonc check ./A/hello.mbt ./A/test.mbt -o ./target/wasm-gc/debug/check/A/A.mi -pkg username/hello/A -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/A:./A -target wasm-gc -workspace-path .
+            moonc check ./A/hello_test.mbt -doctest-only ./A/hello.mbt -doctest-only ./A/test.mbt -include-doctests -o ./target/wasm-gc/debug/check/A/A.blackbox_test.mi -pkg username/hello/A_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/A/A.mi:A -pkg-sources username/hello/A_blackbox_test:./A -target wasm-gc -blackbox-test -workspace-path .
         "#]],
     );
 
     check(
         get_stdout(&dir, ["check", "-p", "main", "--dry-run", "--sort-input"]),
         expect![[r#"
-            moonc check ./lib2/lib.mbt -o ./target/wasm-gc/release/check/lib2/lib2.mi -pkg username/hello/lib2 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib2:./lib2 -target wasm-gc -workspace-path .
-            moonc check ./lib/hello.mbt -o ./target/wasm-gc/release/check/lib/lib.mi -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib2/lib2.mi:lib2 -pkg-sources username/hello/lib:./lib -target wasm-gc -workspace-path .
-            moonc check ./main/main.mbt -o ./target/wasm-gc/release/check/main/main.mi -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm-gc -workspace-path .
-            moonc check -doctest-only ./main/main.mbt -include-doctests -o ./target/wasm-gc/release/check/main/main.blackbox_test.mi -pkg username/hello/main_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/main/main.mi:main -i ./target/wasm-gc/release/check/lib/lib.mi:lib -pkg-sources username/hello/main_blackbox_test:./main -target wasm-gc -blackbox-test -workspace-path .
-            moonc check -doctest-only ./lib2/lib.mbt -include-doctests -o ./target/wasm-gc/release/check/lib2/lib2.blackbox_test.mi -pkg username/hello/lib2_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib2/lib2.mi:lib2 -pkg-sources username/hello/lib2_blackbox_test:./lib2 -target wasm-gc -blackbox-test -workspace-path .
-            moonc check -doctest-only ./lib/hello.mbt -include-doctests -o ./target/wasm-gc/release/check/lib/lib.blackbox_test.mi -pkg username/hello/lib_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib/lib.mi:lib -i ./target/wasm-gc/release/check/lib2/lib2.mi:lib2 -pkg-sources username/hello/lib_blackbox_test:./lib -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./lib2/lib.mbt -o ./target/wasm-gc/debug/check/lib2/lib2.mi -pkg username/hello/lib2 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib2:./lib2 -target wasm-gc -workspace-path .
+            moonc check ./lib/hello.mbt -o ./target/wasm-gc/debug/check/lib/lib.mi -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib2/lib2.mi:lib2 -pkg-sources username/hello/lib:./lib -target wasm-gc -workspace-path .
+            moonc check ./main/main.mbt -o ./target/wasm-gc/debug/check/main/main.mi -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm-gc -workspace-path .
+            moonc check -doctest-only ./main/main.mbt -include-doctests -o ./target/wasm-gc/debug/check/main/main.blackbox_test.mi -pkg username/hello/main_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/main/main.mi:main -i ./target/wasm-gc/debug/check/lib/lib.mi:lib -pkg-sources username/hello/main_blackbox_test:./main -target wasm-gc -blackbox-test -workspace-path .
+            moonc check -doctest-only ./lib2/lib.mbt -include-doctests -o ./target/wasm-gc/debug/check/lib2/lib2.blackbox_test.mi -pkg username/hello/lib2_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib2/lib2.mi:lib2 -pkg-sources username/hello/lib2_blackbox_test:./lib2 -target wasm-gc -blackbox-test -workspace-path .
+            moonc check -doctest-only ./lib/hello.mbt -include-doctests -o ./target/wasm-gc/debug/check/lib/lib.blackbox_test.mi -pkg username/hello/lib_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib/lib.mi:lib -i ./target/wasm-gc/debug/check/lib2/lib2.mi:lib2 -pkg-sources username/hello/lib_blackbox_test:./lib -target wasm-gc -blackbox-test -workspace-path .
         "#]],
     );
 
     check(
         get_stdout(&dir, ["check", "-p", "lib", "--dry-run", "--sort-input"]),
         expect![[r#"
-            moonc check ./lib2/lib.mbt -o ./target/wasm-gc/release/check/lib2/lib2.mi -pkg username/hello/lib2 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib2:./lib2 -target wasm-gc -workspace-path .
-            moonc check -doctest-only ./lib2/lib.mbt -include-doctests -o ./target/wasm-gc/release/check/lib2/lib2.blackbox_test.mi -pkg username/hello/lib2_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib2/lib2.mi:lib2 -pkg-sources username/hello/lib2_blackbox_test:./lib2 -target wasm-gc -blackbox-test -workspace-path .
-            moonc check ./lib/hello.mbt -o ./target/wasm-gc/release/check/lib/lib.mi -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib2/lib2.mi:lib2 -pkg-sources username/hello/lib:./lib -target wasm-gc -workspace-path .
-            moonc check -doctest-only ./lib/hello.mbt -include-doctests -o ./target/wasm-gc/release/check/lib/lib.blackbox_test.mi -pkg username/hello/lib_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib/lib.mi:lib -i ./target/wasm-gc/release/check/lib2/lib2.mi:lib2 -pkg-sources username/hello/lib_blackbox_test:./lib -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./lib2/lib.mbt -o ./target/wasm-gc/debug/check/lib2/lib2.mi -pkg username/hello/lib2 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib2:./lib2 -target wasm-gc -workspace-path .
+            moonc check -doctest-only ./lib2/lib.mbt -include-doctests -o ./target/wasm-gc/debug/check/lib2/lib2.blackbox_test.mi -pkg username/hello/lib2_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib2/lib2.mi:lib2 -pkg-sources username/hello/lib2_blackbox_test:./lib2 -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./lib/hello.mbt -o ./target/wasm-gc/debug/check/lib/lib.mi -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib2/lib2.mi:lib2 -pkg-sources username/hello/lib:./lib -target wasm-gc -workspace-path .
+            moonc check -doctest-only ./lib/hello.mbt -include-doctests -o ./target/wasm-gc/debug/check/lib/lib.blackbox_test.mi -pkg username/hello/lib_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib/lib.mi:lib -i ./target/wasm-gc/debug/check/lib2/lib2.mi:lib2 -pkg-sources username/hello/lib_blackbox_test:./lib -target wasm-gc -blackbox-test -workspace-path .
         "#]],
     );
 }
@@ -3594,9 +3594,9 @@ fn test_moon_check_package_with_patch() {
             ],
         ),
         expect![[r#"
-            moonc check ./A/hello.mbt ./A/test.mbt ./A/hello_wbtest.mbt -o ./target/wasm-gc/release/check/A/A.whitebox_test.mi -pkg username/hello/A -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/A:./A -target wasm-gc -whitebox-test -workspace-path .
-            moonc check -patch-file /path/to/patch.json ./A/hello.mbt ./A/test.mbt -o ./target/wasm-gc/release/check/A/A.mi -pkg username/hello/A -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/A:./A -target wasm-gc -workspace-path .
-            moonc check ./A/hello_test.mbt -doctest-only ./A/hello.mbt -doctest-only ./A/test.mbt -include-doctests -o ./target/wasm-gc/release/check/A/A.blackbox_test.mi -pkg username/hello/A_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/A/A.mi:A -pkg-sources username/hello/A_blackbox_test:./A -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./A/hello.mbt ./A/test.mbt ./A/hello_wbtest.mbt -o ./target/wasm-gc/debug/check/A/A.whitebox_test.mi -pkg username/hello/A -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/A:./A -target wasm-gc -whitebox-test -workspace-path .
+            moonc check -patch-file /path/to/patch.json ./A/hello.mbt ./A/test.mbt -o ./target/wasm-gc/debug/check/A/A.mi -pkg username/hello/A -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/A:./A -target wasm-gc -workspace-path .
+            moonc check ./A/hello_test.mbt -doctest-only ./A/hello.mbt -doctest-only ./A/test.mbt -include-doctests -o ./target/wasm-gc/debug/check/A/A.blackbox_test.mi -pkg username/hello/A_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/A/A.mi:A -pkg-sources username/hello/A_blackbox_test:./A -target wasm-gc -blackbox-test -workspace-path .
         "#]],
     );
     check(
@@ -3613,9 +3613,9 @@ fn test_moon_check_package_with_patch() {
             ],
         ),
         expect![[r#"
-            moonc check -patch-file /path/to/patch_wbtest.json ./A/hello.mbt ./A/test.mbt ./A/hello_wbtest.mbt -o ./target/wasm-gc/release/check/A/A.whitebox_test.mi -pkg username/hello/A -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/A:./A -target wasm-gc -whitebox-test -workspace-path .
-            moonc check ./A/hello.mbt ./A/test.mbt -o ./target/wasm-gc/release/check/A/A.mi -pkg username/hello/A -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/A:./A -target wasm-gc -workspace-path .
-            moonc check ./A/hello_test.mbt -doctest-only ./A/hello.mbt -doctest-only ./A/test.mbt -include-doctests -o ./target/wasm-gc/release/check/A/A.blackbox_test.mi -pkg username/hello/A_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/A/A.mi:A -pkg-sources username/hello/A_blackbox_test:./A -target wasm-gc -blackbox-test -workspace-path .
+            moonc check -patch-file /path/to/patch_wbtest.json ./A/hello.mbt ./A/test.mbt ./A/hello_wbtest.mbt -o ./target/wasm-gc/debug/check/A/A.whitebox_test.mi -pkg username/hello/A -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/A:./A -target wasm-gc -whitebox-test -workspace-path .
+            moonc check ./A/hello.mbt ./A/test.mbt -o ./target/wasm-gc/debug/check/A/A.mi -pkg username/hello/A -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/A:./A -target wasm-gc -workspace-path .
+            moonc check ./A/hello_test.mbt -doctest-only ./A/hello.mbt -doctest-only ./A/test.mbt -include-doctests -o ./target/wasm-gc/debug/check/A/A.blackbox_test.mi -pkg username/hello/A_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/A/A.mi:A -pkg-sources username/hello/A_blackbox_test:./A -target wasm-gc -blackbox-test -workspace-path .
         "#]],
     );
     check(
@@ -3632,9 +3632,9 @@ fn test_moon_check_package_with_patch() {
             ],
         ),
         expect![[r#"
-            moonc check ./A/hello.mbt ./A/test.mbt ./A/hello_wbtest.mbt -o ./target/wasm-gc/release/check/A/A.whitebox_test.mi -pkg username/hello/A -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/A:./A -target wasm-gc -whitebox-test -workspace-path .
-            moonc check ./A/hello.mbt ./A/test.mbt -o ./target/wasm-gc/release/check/A/A.mi -pkg username/hello/A -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/A:./A -target wasm-gc -workspace-path .
-            moonc check -patch-file /path/to/patch_test.json ./A/hello_test.mbt -doctest-only ./A/hello.mbt -doctest-only ./A/test.mbt -include-doctests -o ./target/wasm-gc/release/check/A/A.blackbox_test.mi -pkg username/hello/A_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/A/A.mi:A -pkg-sources username/hello/A_blackbox_test:./A -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./A/hello.mbt ./A/test.mbt ./A/hello_wbtest.mbt -o ./target/wasm-gc/debug/check/A/A.whitebox_test.mi -pkg username/hello/A -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/A:./A -target wasm-gc -whitebox-test -workspace-path .
+            moonc check ./A/hello.mbt ./A/test.mbt -o ./target/wasm-gc/debug/check/A/A.mi -pkg username/hello/A -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/A:./A -target wasm-gc -workspace-path .
+            moonc check -patch-file /path/to/patch_test.json ./A/hello_test.mbt -doctest-only ./A/hello.mbt -doctest-only ./A/test.mbt -include-doctests -o ./target/wasm-gc/debug/check/A/A.blackbox_test.mi -pkg username/hello/A_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/A/A.mi:A -pkg-sources username/hello/A_blackbox_test:./A -target wasm-gc -blackbox-test -workspace-path .
         "#]],
     );
 
@@ -3653,10 +3653,10 @@ fn test_moon_check_package_with_patch() {
             ],
         ),
         expect![[r#"
-            moonc check ./lib2/lib.mbt -o ./target/wasm-gc/release/check/lib2/lib2.mi -pkg username/hello/lib2 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib2:./lib2 -target wasm-gc -workspace-path .
-            moonc check -doctest-only ./lib2/lib.mbt -include-doctests -o ./target/wasm-gc/release/check/lib2/lib2.blackbox_test.mi -pkg username/hello/lib2_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib2/lib2.mi:lib2 -pkg-sources username/hello/lib2_blackbox_test:./lib2 -target wasm-gc -blackbox-test -workspace-path .
-            moonc check -patch-file /path/to/patch.json ./lib/hello.mbt -o ./target/wasm-gc/release/check/lib/lib.mi -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib2/lib2.mi:lib2 -pkg-sources username/hello/lib:./lib -target wasm-gc -workspace-path .
-            moonc check -doctest-only ./lib/hello.mbt -include-doctests -o ./target/wasm-gc/release/check/lib/lib.blackbox_test.mi -pkg username/hello/lib_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib/lib.mi:lib -i ./target/wasm-gc/release/check/lib2/lib2.mi:lib2 -pkg-sources username/hello/lib_blackbox_test:./lib -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./lib2/lib.mbt -o ./target/wasm-gc/debug/check/lib2/lib2.mi -pkg username/hello/lib2 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib2:./lib2 -target wasm-gc -workspace-path .
+            moonc check -doctest-only ./lib2/lib.mbt -include-doctests -o ./target/wasm-gc/debug/check/lib2/lib2.blackbox_test.mi -pkg username/hello/lib2_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib2/lib2.mi:lib2 -pkg-sources username/hello/lib2_blackbox_test:./lib2 -target wasm-gc -blackbox-test -workspace-path .
+            moonc check -patch-file /path/to/patch.json ./lib/hello.mbt -o ./target/wasm-gc/debug/check/lib/lib.mi -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib2/lib2.mi:lib2 -pkg-sources username/hello/lib:./lib -target wasm-gc -workspace-path .
+            moonc check -doctest-only ./lib/hello.mbt -include-doctests -o ./target/wasm-gc/debug/check/lib/lib.blackbox_test.mi -pkg username/hello/lib_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib/lib.mi:lib -i ./target/wasm-gc/debug/check/lib2/lib2.mi:lib2 -pkg-sources username/hello/lib_blackbox_test:./lib -target wasm-gc -blackbox-test -workspace-path .
         "#]],
     );
     check(
@@ -3673,10 +3673,10 @@ fn test_moon_check_package_with_patch() {
             ],
         ),
         expect![[r#"
-            moonc check ./lib2/lib.mbt -o ./target/wasm-gc/release/check/lib2/lib2.mi -pkg username/hello/lib2 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib2:./lib2 -target wasm-gc -workspace-path .
-            moonc check -doctest-only ./lib2/lib.mbt -include-doctests -o ./target/wasm-gc/release/check/lib2/lib2.blackbox_test.mi -pkg username/hello/lib2_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib2/lib2.mi:lib2 -pkg-sources username/hello/lib2_blackbox_test:./lib2 -target wasm-gc -blackbox-test -workspace-path .
-            moonc check ./lib/hello.mbt -o ./target/wasm-gc/release/check/lib/lib.mi -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib2/lib2.mi:lib2 -pkg-sources username/hello/lib:./lib -target wasm-gc -workspace-path .
-            moonc check -patch-file /path/to/patch_test.json -doctest-only ./lib/hello.mbt -include-doctests -o ./target/wasm-gc/release/check/lib/lib.blackbox_test.mi -pkg username/hello/lib_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib/lib.mi:lib -i ./target/wasm-gc/release/check/lib2/lib2.mi:lib2 -pkg-sources username/hello/lib_blackbox_test:./lib -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./lib2/lib.mbt -o ./target/wasm-gc/debug/check/lib2/lib2.mi -pkg username/hello/lib2 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib2:./lib2 -target wasm-gc -workspace-path .
+            moonc check -doctest-only ./lib2/lib.mbt -include-doctests -o ./target/wasm-gc/debug/check/lib2/lib2.blackbox_test.mi -pkg username/hello/lib2_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib2/lib2.mi:lib2 -pkg-sources username/hello/lib2_blackbox_test:./lib2 -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./lib/hello.mbt -o ./target/wasm-gc/debug/check/lib/lib.mi -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib2/lib2.mi:lib2 -pkg-sources username/hello/lib:./lib -target wasm-gc -workspace-path .
+            moonc check -patch-file /path/to/patch_test.json -doctest-only ./lib/hello.mbt -include-doctests -o ./target/wasm-gc/debug/check/lib/lib.blackbox_test.mi -pkg username/hello/lib_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib/lib.mi:lib -i ./target/wasm-gc/debug/check/lib2/lib2.mi:lib2 -pkg-sources username/hello/lib_blackbox_test:./lib -target wasm-gc -blackbox-test -workspace-path .
         "#]],
     );
 
@@ -3696,12 +3696,12 @@ fn test_moon_check_package_with_patch() {
             ],
         ),
         expect![[r#"
-            moonc check ./lib2/lib.mbt -o ./target/wasm-gc/release/check/lib2/lib2.mi -pkg username/hello/lib2 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib2:./lib2 -target wasm-gc -workspace-path .
-            moonc check ./lib/hello.mbt -o ./target/wasm-gc/release/check/lib/lib.mi -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib2/lib2.mi:lib2 -pkg-sources username/hello/lib:./lib -target wasm-gc -workspace-path .
-            moonc check -patch-file /path/to/patch.json -no-mi ./main/main.mbt -o ./target/wasm-gc/release/check/main/main.mi -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm-gc -workspace-path .
-            moonc check -no-mi -doctest-only ./main/main.mbt -include-doctests -o ./target/wasm-gc/release/check/main/main.blackbox_test.mi -pkg username/hello/main_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/main/main.mi:main -i ./target/wasm-gc/release/check/lib/lib.mi:lib -pkg-sources username/hello/main_blackbox_test:./main -target wasm-gc -blackbox-test -workspace-path .
-            moonc check -doctest-only ./lib2/lib.mbt -include-doctests -o ./target/wasm-gc/release/check/lib2/lib2.blackbox_test.mi -pkg username/hello/lib2_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib2/lib2.mi:lib2 -pkg-sources username/hello/lib2_blackbox_test:./lib2 -target wasm-gc -blackbox-test -workspace-path .
-            moonc check -doctest-only ./lib/hello.mbt -include-doctests -o ./target/wasm-gc/release/check/lib/lib.blackbox_test.mi -pkg username/hello/lib_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib/lib.mi:lib -i ./target/wasm-gc/release/check/lib2/lib2.mi:lib2 -pkg-sources username/hello/lib_blackbox_test:./lib -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./lib2/lib.mbt -o ./target/wasm-gc/debug/check/lib2/lib2.mi -pkg username/hello/lib2 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib2:./lib2 -target wasm-gc -workspace-path .
+            moonc check ./lib/hello.mbt -o ./target/wasm-gc/debug/check/lib/lib.mi -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib2/lib2.mi:lib2 -pkg-sources username/hello/lib:./lib -target wasm-gc -workspace-path .
+            moonc check -patch-file /path/to/patch.json -no-mi ./main/main.mbt -o ./target/wasm-gc/debug/check/main/main.mi -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm-gc -workspace-path .
+            moonc check -no-mi -doctest-only ./main/main.mbt -include-doctests -o ./target/wasm-gc/debug/check/main/main.blackbox_test.mi -pkg username/hello/main_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/main/main.mi:main -i ./target/wasm-gc/debug/check/lib/lib.mi:lib -pkg-sources username/hello/main_blackbox_test:./main -target wasm-gc -blackbox-test -workspace-path .
+            moonc check -doctest-only ./lib2/lib.mbt -include-doctests -o ./target/wasm-gc/debug/check/lib2/lib2.blackbox_test.mi -pkg username/hello/lib2_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib2/lib2.mi:lib2 -pkg-sources username/hello/lib2_blackbox_test:./lib2 -target wasm-gc -blackbox-test -workspace-path .
+            moonc check -doctest-only ./lib/hello.mbt -include-doctests -o ./target/wasm-gc/debug/check/lib/lib.blackbox_test.mi -pkg username/hello/lib_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib/lib.mi:lib -i ./target/wasm-gc/debug/check/lib2/lib2.mi:lib2 -pkg-sources username/hello/lib_blackbox_test:./lib -target wasm-gc -blackbox-test -workspace-path .
         "#]],
     );
 }
@@ -4076,14 +4076,14 @@ fn test_add_mi_if_self_not_set_in_test_imports() {
     check(
         get_stdout(&dir, ["check", "--dry-run", "--sort-input"]),
         expect![[r#"
-            moonc check ./lib/hello.mbt -o ./target/wasm-gc/release/check/lib/lib.mi -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./lib -target wasm-gc -workspace-path .
-            moonc check ./main/main.mbt -o ./target/wasm-gc/release/check/main/main.mi -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm-gc -workspace-path .
-            moonc check -doctest-only ./main/main.mbt -include-doctests -o ./target/wasm-gc/release/check/main/main.blackbox_test.mi -pkg username/hello/main_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/main/main.mi:main -i ./target/wasm-gc/release/check/lib/lib.mi:lib -pkg-sources username/hello/main_blackbox_test:./main -target wasm-gc -blackbox-test -workspace-path .
-            moonc check ./lib3/hello.mbt -o ./target/wasm-gc/release/check/lib3/lib3.mi -pkg username/hello/lib3 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib3:./lib3 -target wasm-gc -workspace-path .
-            moonc check ./lib3/hello_test.mbt -doctest-only ./lib3/hello.mbt -include-doctests -o ./target/wasm-gc/release/check/lib3/lib3.blackbox_test.mi -pkg username/hello/lib3_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib3/lib3.mi:lib3 -pkg-sources username/hello/lib3_blackbox_test:./lib3 -target wasm-gc -blackbox-test -workspace-path .
-            moonc check ./lib2/hello.mbt -o ./target/wasm-gc/release/check/lib2/lib2.mi -pkg username/hello/lib2 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib2:./lib2 -target wasm-gc -workspace-path .
-            moonc check ./lib2/hello_test.mbt -doctest-only ./lib2/hello.mbt -include-doctests -o ./target/wasm-gc/release/check/lib2/lib2.blackbox_test.mi -pkg username/hello/lib2_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib2/lib2.mi:lib2 -pkg-sources username/hello/lib2_blackbox_test:./lib2 -target wasm-gc -blackbox-test -workspace-path .
-            moonc check ./lib/hello_test.mbt -doctest-only ./lib/hello.mbt -include-doctests -o ./target/wasm-gc/release/check/lib/lib.blackbox_test.mi -pkg username/hello/lib_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib/lib.mi:lll -pkg-sources username/hello/lib_blackbox_test:./lib -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./lib/hello.mbt -o ./target/wasm-gc/debug/check/lib/lib.mi -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./lib -target wasm-gc -workspace-path .
+            moonc check ./main/main.mbt -o ./target/wasm-gc/debug/check/main/main.mi -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm-gc -workspace-path .
+            moonc check -doctest-only ./main/main.mbt -include-doctests -o ./target/wasm-gc/debug/check/main/main.blackbox_test.mi -pkg username/hello/main_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/main/main.mi:main -i ./target/wasm-gc/debug/check/lib/lib.mi:lib -pkg-sources username/hello/main_blackbox_test:./main -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./lib3/hello.mbt -o ./target/wasm-gc/debug/check/lib3/lib3.mi -pkg username/hello/lib3 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib3:./lib3 -target wasm-gc -workspace-path .
+            moonc check ./lib3/hello_test.mbt -doctest-only ./lib3/hello.mbt -include-doctests -o ./target/wasm-gc/debug/check/lib3/lib3.blackbox_test.mi -pkg username/hello/lib3_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib3/lib3.mi:lib3 -pkg-sources username/hello/lib3_blackbox_test:./lib3 -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./lib2/hello.mbt -o ./target/wasm-gc/debug/check/lib2/lib2.mi -pkg username/hello/lib2 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib2:./lib2 -target wasm-gc -workspace-path .
+            moonc check ./lib2/hello_test.mbt -doctest-only ./lib2/hello.mbt -include-doctests -o ./target/wasm-gc/debug/check/lib2/lib2.blackbox_test.mi -pkg username/hello/lib2_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib2/lib2.mi:lib2 -pkg-sources username/hello/lib2_blackbox_test:./lib2 -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./lib/hello_test.mbt -doctest-only ./lib/hello.mbt -include-doctests -o ./target/wasm-gc/debug/check/lib/lib.blackbox_test.mi -pkg username/hello/lib_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib/lib.mi:lll -pkg-sources username/hello/lib_blackbox_test:./lib -target wasm-gc -blackbox-test -workspace-path .
         "#]],
     );
 
@@ -4422,10 +4422,10 @@ fn test_tracing_value_for_main_func() {
             ],
         ),
         expect![[r#"
-            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/release/build/lib/lib.core -pkg moon_new/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources moon_new/lib:./lib -target wasm-gc -workspace-path .
-            moonc build-package ./main/main.mbt -o ./target/wasm-gc/release/build/main/main.core -pkg moon_new/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/build/lib/lib.mi:lib -pkg-sources moon_new/main:./main -target wasm-gc -enable-value-tracing -workspace-path .
-            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/release/build/lib/lib.core ./target/wasm-gc/release/build/main/main.core -main moon_new/main -o ./target/wasm-gc/release/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources moon_new/lib:./lib -pkg-sources moon_new/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc
-            moonrun ./target/wasm-gc/release/build/main/main.wasm
+            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/debug/build/lib/lib.core -pkg moon_new/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources moon_new/lib:./lib -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./main/main.mbt -o ./target/wasm-gc/debug/build/main/main.core -pkg moon_new/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/build/lib/lib.mi:lib -pkg-sources moon_new/main:./main -target wasm-gc -g -O0 -source-map -enable-value-tracing -workspace-path .
+            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/debug/build/lib/lib.core ./target/wasm-gc/debug/build/main/main.core -main moon_new/main -o ./target/wasm-gc/debug/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources moon_new/lib:./lib -pkg-sources moon_new/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc -g -O0 -source-map
+            moonrun ./target/wasm-gc/debug/build/main/main.wasm
         "#]],
     );
     let content = get_stdout(&dir, ["run", "./main/main.mbt", "--enable-value-tracing"])
@@ -4469,8 +4469,8 @@ fn test_tracing_value_for_main_func() {
             ["run", "./main.mbt", "--enable-value-tracing", "--dry-run"],
         ),
         expect![[r#"
-            moonc build-package $ROOT/main.mbt -o $ROOT/target/main.core -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -is-main -pkg moon/run/single -g -O0 -source-map -target wasm-gc -enable-value-tracing
-            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core $ROOT/target/main.core -o $ROOT/target/main.wasm -pkg-sources moon/run/single:$ROOT -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -g -O0 -source-map -target wasm-gc
+            moonc build-package $ROOT/main.mbt -o $ROOT/target/main.core -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -is-main -pkg moon/run/single -target wasm-gc -g -source-map -O0 -enable-value-tracing
+            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core $ROOT/target/main.core -o $ROOT/target/main.wasm -pkg-sources moon/run/single:$ROOT -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc -g -source-map -O0
             moonrun $ROOT/target/main.wasm
         "#]],
     );
@@ -4606,7 +4606,7 @@ fn test_exports_in_native_backend() {
     assert!(
         !dir.join("target")
             .join("native")
-            .join("release")
+            .join("debug")
             .join("build")
             .join("lib")
             .join("lib.c")
@@ -4615,7 +4615,7 @@ fn test_exports_in_native_backend() {
     let lib2_c = read(
         dir.join("target")
             .join("native")
-            .join("release")
+            .join("debug")
             .join("build")
             .join("lib2")
             .join("lib2.c"),
@@ -4626,7 +4626,7 @@ fn test_exports_in_native_backend() {
     let lib3_c = read(
         dir.join("target")
             .join("native")
-            .join("release")
+            .join("debug")
             .join("build")
             .join("lib3")
             .join("lib3.c"),
@@ -4662,8 +4662,8 @@ fn test_dont_link_third_party() {
     check(
         get_stdout(&dir, ["build", "--dry-run", "--sort-input"]),
         expect![[r#"
-            moonc build-package ./main/main.mbt -o ./target/wasm-gc/release/build/main/main.core -pkg hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources hello/main:./main -target wasm-gc -workspace-path .
-            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/release/build/main/main.core -main hello/main -o ./target/wasm-gc/release/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc
+            moonc build-package ./main/main.mbt -o ./target/wasm-gc/debug/build/main/main.core -pkg hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources hello/main:./main -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/debug/build/main/main.core -main hello/main -o ./target/wasm-gc/debug/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc -g -O0 -source-map
         "#]],
     );
 }
@@ -5017,7 +5017,7 @@ fn test_run_md_test() {
                       "deps": [],
                       "wbtest-deps": [],
                       "test-deps": [],
-                      "artifact": "$ROOT/target/wasm-gc/release/check/lib/lib.mi"
+                      "artifact": "$ROOT/target/wasm-gc/debug/check/lib/lib.mi"
                     },
                     {
                       "is-main": true,
@@ -5052,12 +5052,12 @@ fn test_run_md_test() {
                       ],
                       "wbtest-deps": [],
                       "test-deps": [],
-                      "artifact": "$ROOT/target/wasm-gc/release/check/main/main.mi"
+                      "artifact": "$ROOT/target/wasm-gc/debug/check/main/main.mi"
                     }
                   ],
                   "deps": [],
                   "backend": "wasm-gc",
-                  "opt_level": "release",
+                  "opt_level": "debug",
                   "source": "src"
                 }"#]],
         );
@@ -5342,14 +5342,14 @@ fn test_virtual_pkg() {
     check(
         get_stdout(&virtual_pkg, ["run", "main", "--dry-run"]),
         expect![[r#"
-            moonc build-interface ./lib3/pkg.mbti -o ./target/wasm-gc/release/build/lib3/lib3.mi -pkg username/hello/lib3 -pkg-sources username/hello/lib3:./lib3 -virtual -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -error-format=json
-            moonc build-interface ./lib1/pkg.mbti -o ./target/wasm-gc/release/build/lib1/lib1.mi -pkg username/hello/lib1 -pkg-sources username/hello/lib1:./lib1 -virtual -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -error-format=json
-            moonc build-package ./main/main.mbt -o ./target/wasm-gc/release/build/main/main.core -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/build/lib1/lib1.mi:lib1 -i ./target/wasm-gc/release/build/lib3/lib3.mi:lib3 -pkg-sources username/hello/main:./main -target wasm-gc -workspace-path .
-            moonc build-package ./lib4/hello.mbt -o ./target/wasm-gc/release/build/lib4/lib4.core -pkg username/hello/lib4 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib4:./lib4 -target wasm-gc -check-mi ./target/wasm-gc/release/build/lib3/lib3.mi -impl-virtual -no-mi -pkg-sources username/hello/lib3:./lib3 -workspace-path .
-            moonc build-package ./dummy_lib/hello.mbt -o ./target/wasm-gc/release/build/dummy_lib/dummy_lib.core -pkg username/hello/dummy_lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/dummy_lib:./dummy_lib -target wasm-gc -workspace-path .
-            moonc build-package ./lib2/hello.mbt -o ./target/wasm-gc/release/build/lib2/lib2.core -pkg username/hello/lib2 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/build/dummy_lib/dummy_lib.mi:dummy_lib -pkg-sources username/hello/lib2:./lib2 -target wasm-gc -check-mi ./target/wasm-gc/release/build/lib1/lib1.mi -impl-virtual -no-mi -pkg-sources username/hello/lib1:./lib1 -workspace-path .
-            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/release/build/dummy_lib/dummy_lib.core ./target/wasm-gc/release/build/lib2/lib2.core ./target/wasm-gc/release/build/lib4/lib4.core ./target/wasm-gc/release/build/main/main.core -main username/hello/main -o ./target/wasm-gc/release/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/dummy_lib:./dummy_lib -pkg-sources username/hello/lib2:./lib2 -pkg-sources username/hello/lib4:./lib4 -pkg-sources username/hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc
-            moonrun ./target/wasm-gc/release/build/main/main.wasm
+            moonc build-interface ./lib3/pkg.mbti -o ./target/wasm-gc/debug/build/lib3/lib3.mi -pkg username/hello/lib3 -pkg-sources username/hello/lib3:./lib3 -virtual -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -error-format=json
+            moonc build-interface ./lib1/pkg.mbti -o ./target/wasm-gc/debug/build/lib1/lib1.mi -pkg username/hello/lib1 -pkg-sources username/hello/lib1:./lib1 -virtual -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -error-format=json
+            moonc build-package ./main/main.mbt -o ./target/wasm-gc/debug/build/main/main.core -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/build/lib1/lib1.mi:lib1 -i ./target/wasm-gc/debug/build/lib3/lib3.mi:lib3 -pkg-sources username/hello/main:./main -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./lib4/hello.mbt -o ./target/wasm-gc/debug/build/lib4/lib4.core -pkg username/hello/lib4 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib4:./lib4 -target wasm-gc -g -O0 -source-map -check-mi ./target/wasm-gc/debug/build/lib3/lib3.mi -impl-virtual -no-mi -pkg-sources username/hello/lib3:./lib3 -workspace-path .
+            moonc build-package ./dummy_lib/hello.mbt -o ./target/wasm-gc/debug/build/dummy_lib/dummy_lib.core -pkg username/hello/dummy_lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/dummy_lib:./dummy_lib -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./lib2/hello.mbt -o ./target/wasm-gc/debug/build/lib2/lib2.core -pkg username/hello/lib2 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/build/dummy_lib/dummy_lib.mi:dummy_lib -pkg-sources username/hello/lib2:./lib2 -target wasm-gc -g -O0 -source-map -check-mi ./target/wasm-gc/debug/build/lib1/lib1.mi -impl-virtual -no-mi -pkg-sources username/hello/lib1:./lib1 -workspace-path .
+            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/debug/build/dummy_lib/dummy_lib.core ./target/wasm-gc/debug/build/lib2/lib2.core ./target/wasm-gc/debug/build/lib4/lib4.core ./target/wasm-gc/debug/build/main/main.core -main username/hello/main -o ./target/wasm-gc/debug/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/dummy_lib:./dummy_lib -pkg-sources username/hello/lib2:./lib2 -pkg-sources username/hello/lib4:./lib4 -pkg-sources username/hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc -g -O0 -source-map
+            moonrun ./target/wasm-gc/debug/build/main/main.wasm
         "#]],
     );
     check(
@@ -5690,44 +5690,44 @@ fn test_sub_package() {
     check(
         get_stdout(&dir, ["check", "--dry-run", "--sort-input"]),
         expect![[r#"
-            moonc check ./dep/hello.mbt -o ./target/wasm-gc/release/check/dep/dep.mi -pkg moon_new/dep -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources moon_new/dep:./dep -target wasm-gc -workspace-path .
-            moonc check ./sub_pkg/111.mbt ./sub_pkg/dir/222.mbt -o ./target/wasm-gc/release/check/sub_pkg/sub_pkg_sub.mi -pkg moon_new/sub_pkg -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/dep/dep.mi:dep -pkg-sources moon_new/sub_pkg:./sub_pkg -target wasm-gc -workspace-path .
-            moonc check ./dep2/hello.mbt -o ./target/wasm-gc/release/check/dep2/dep2.mi -pkg moon_new/dep2 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/sub_pkg/sub_pkg_sub.mi:sub_pkg -pkg-sources moon_new/dep2:./dep2 -target wasm-gc -workspace-path .
-            moonc check ./sub_pkg/111.mbt ./sub_pkg/hello.mbt -o ./target/wasm-gc/release/check/sub_pkg/sub_pkg.mi -pkg moon_new/sub_pkg -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/dep2/dep2.mi:dep2 -pkg-sources moon_new/sub_pkg:./sub_pkg -target wasm-gc -workspace-path .
-            moonc check ./test/hello.mbt ./test/hello_wbtest.mbt -o ./target/wasm-gc/release/check/test/test.whitebox_test.mi -pkg moon_new/test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/sub_pkg/sub_pkg.mi:sub_pkg -pkg-sources moon_new/test:./test -target wasm-gc -whitebox-test -workspace-path .
-            moonc check ./test/hello.mbt -o ./target/wasm-gc/release/check/test/test.mi -pkg moon_new/test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/sub_pkg/sub_pkg_sub.mi:sub_pkg -pkg-sources moon_new/test:./test -target wasm-gc -workspace-path .
-            moonc check ./test/hello_test.mbt -doctest-only ./test/hello.mbt -include-doctests -o ./target/wasm-gc/release/check/test/test.blackbox_test.mi -pkg moon_new/test_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/test/test.mi:test -i ./target/wasm-gc/release/check/sub_pkg/sub_pkg.mi:sub_pkg -pkg-sources moon_new/test_blackbox_test:./test -target wasm-gc -blackbox-test -workspace-path .
-            moonc check -doctest-only ./sub_pkg/111.mbt -doctest-only ./sub_pkg/dir/222.mbt -include-doctests -o ./target/wasm-gc/release/check/sub_pkg/sub_pkg_sub.blackbox_test.mi -pkg moon_new/sub_pkg_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/sub_pkg/sub_pkg_sub.mi:sub_pkg_sub -i ./target/wasm-gc/release/check/dep/dep.mi:dep -pkg-sources moon_new/sub_pkg_blackbox_test:./sub_pkg -target wasm-gc -blackbox-test -workspace-path .
-            moonc check -doctest-only ./sub_pkg/111.mbt -doctest-only ./sub_pkg/hello.mbt -include-doctests -o ./target/wasm-gc/release/check/sub_pkg/sub_pkg.blackbox_test.mi -pkg moon_new/sub_pkg_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/sub_pkg/sub_pkg.mi:sub_pkg -i ./target/wasm-gc/release/check/dep2/dep2.mi:dep2 -pkg-sources moon_new/sub_pkg_blackbox_test:./sub_pkg -target wasm-gc -blackbox-test -workspace-path .
-            moonc check ./main/main.mbt -o ./target/wasm-gc/release/check/main/main.mi -pkg moon_new/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/sub_pkg/sub_pkg_sub.mi:sub_pkg -pkg-sources moon_new/main:./main -target wasm-gc -workspace-path .
-            moonc check -doctest-only ./main/main.mbt -include-doctests -o ./target/wasm-gc/release/check/main/main.blackbox_test.mi -pkg moon_new/main_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/main/main.mi:main -i ./target/wasm-gc/release/check/sub_pkg/sub_pkg_sub.mi:sub_pkg -pkg-sources moon_new/main_blackbox_test:./main -target wasm-gc -blackbox-test -workspace-path .
-            moonc check ./lib/hello.mbt -o ./target/wasm-gc/release/check/lib/lib.mi -pkg moon_new/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/sub_pkg/sub_pkg.mi:sub_pkg -pkg-sources moon_new/lib:./lib -target wasm-gc -workspace-path .
-            moonc check -doctest-only ./lib/hello.mbt -include-doctests -o ./target/wasm-gc/release/check/lib/lib.blackbox_test.mi -pkg moon_new/lib_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib/lib.mi:lib -i ./target/wasm-gc/release/check/sub_pkg/sub_pkg.mi:sub_pkg -pkg-sources moon_new/lib_blackbox_test:./lib -target wasm-gc -blackbox-test -workspace-path .
-            moonc check -doctest-only ./dep2/hello.mbt -include-doctests -o ./target/wasm-gc/release/check/dep2/dep2.blackbox_test.mi -pkg moon_new/dep2_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/dep2/dep2.mi:dep2 -i ./target/wasm-gc/release/check/sub_pkg/sub_pkg_sub.mi:sub_pkg -pkg-sources moon_new/dep2_blackbox_test:./dep2 -target wasm-gc -blackbox-test -workspace-path .
-            moonc check -doctest-only ./dep/hello.mbt -include-doctests -o ./target/wasm-gc/release/check/dep/dep.blackbox_test.mi -pkg moon_new/dep_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/dep/dep.mi:dep -pkg-sources moon_new/dep_blackbox_test:./dep -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./dep/hello.mbt -o ./target/wasm-gc/debug/check/dep/dep.mi -pkg moon_new/dep -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources moon_new/dep:./dep -target wasm-gc -workspace-path .
+            moonc check ./sub_pkg/111.mbt ./sub_pkg/dir/222.mbt -o ./target/wasm-gc/debug/check/sub_pkg/sub_pkg_sub.mi -pkg moon_new/sub_pkg -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/dep/dep.mi:dep -pkg-sources moon_new/sub_pkg:./sub_pkg -target wasm-gc -workspace-path .
+            moonc check ./dep2/hello.mbt -o ./target/wasm-gc/debug/check/dep2/dep2.mi -pkg moon_new/dep2 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/sub_pkg/sub_pkg_sub.mi:sub_pkg -pkg-sources moon_new/dep2:./dep2 -target wasm-gc -workspace-path .
+            moonc check ./sub_pkg/111.mbt ./sub_pkg/hello.mbt -o ./target/wasm-gc/debug/check/sub_pkg/sub_pkg.mi -pkg moon_new/sub_pkg -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/dep2/dep2.mi:dep2 -pkg-sources moon_new/sub_pkg:./sub_pkg -target wasm-gc -workspace-path .
+            moonc check ./test/hello.mbt ./test/hello_wbtest.mbt -o ./target/wasm-gc/debug/check/test/test.whitebox_test.mi -pkg moon_new/test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/sub_pkg/sub_pkg.mi:sub_pkg -pkg-sources moon_new/test:./test -target wasm-gc -whitebox-test -workspace-path .
+            moonc check ./test/hello.mbt -o ./target/wasm-gc/debug/check/test/test.mi -pkg moon_new/test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/sub_pkg/sub_pkg_sub.mi:sub_pkg -pkg-sources moon_new/test:./test -target wasm-gc -workspace-path .
+            moonc check ./test/hello_test.mbt -doctest-only ./test/hello.mbt -include-doctests -o ./target/wasm-gc/debug/check/test/test.blackbox_test.mi -pkg moon_new/test_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/test/test.mi:test -i ./target/wasm-gc/debug/check/sub_pkg/sub_pkg.mi:sub_pkg -pkg-sources moon_new/test_blackbox_test:./test -target wasm-gc -blackbox-test -workspace-path .
+            moonc check -doctest-only ./sub_pkg/111.mbt -doctest-only ./sub_pkg/dir/222.mbt -include-doctests -o ./target/wasm-gc/debug/check/sub_pkg/sub_pkg_sub.blackbox_test.mi -pkg moon_new/sub_pkg_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/sub_pkg/sub_pkg_sub.mi:sub_pkg_sub -i ./target/wasm-gc/debug/check/dep/dep.mi:dep -pkg-sources moon_new/sub_pkg_blackbox_test:./sub_pkg -target wasm-gc -blackbox-test -workspace-path .
+            moonc check -doctest-only ./sub_pkg/111.mbt -doctest-only ./sub_pkg/hello.mbt -include-doctests -o ./target/wasm-gc/debug/check/sub_pkg/sub_pkg.blackbox_test.mi -pkg moon_new/sub_pkg_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/sub_pkg/sub_pkg.mi:sub_pkg -i ./target/wasm-gc/debug/check/dep2/dep2.mi:dep2 -pkg-sources moon_new/sub_pkg_blackbox_test:./sub_pkg -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./main/main.mbt -o ./target/wasm-gc/debug/check/main/main.mi -pkg moon_new/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/sub_pkg/sub_pkg_sub.mi:sub_pkg -pkg-sources moon_new/main:./main -target wasm-gc -workspace-path .
+            moonc check -doctest-only ./main/main.mbt -include-doctests -o ./target/wasm-gc/debug/check/main/main.blackbox_test.mi -pkg moon_new/main_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/main/main.mi:main -i ./target/wasm-gc/debug/check/sub_pkg/sub_pkg_sub.mi:sub_pkg -pkg-sources moon_new/main_blackbox_test:./main -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./lib/hello.mbt -o ./target/wasm-gc/debug/check/lib/lib.mi -pkg moon_new/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/sub_pkg/sub_pkg.mi:sub_pkg -pkg-sources moon_new/lib:./lib -target wasm-gc -workspace-path .
+            moonc check -doctest-only ./lib/hello.mbt -include-doctests -o ./target/wasm-gc/debug/check/lib/lib.blackbox_test.mi -pkg moon_new/lib_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib/lib.mi:lib -i ./target/wasm-gc/debug/check/sub_pkg/sub_pkg.mi:sub_pkg -pkg-sources moon_new/lib_blackbox_test:./lib -target wasm-gc -blackbox-test -workspace-path .
+            moonc check -doctest-only ./dep2/hello.mbt -include-doctests -o ./target/wasm-gc/debug/check/dep2/dep2.blackbox_test.mi -pkg moon_new/dep2_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/dep2/dep2.mi:dep2 -i ./target/wasm-gc/debug/check/sub_pkg/sub_pkg_sub.mi:sub_pkg -pkg-sources moon_new/dep2_blackbox_test:./dep2 -target wasm-gc -blackbox-test -workspace-path .
+            moonc check -doctest-only ./dep/hello.mbt -include-doctests -o ./target/wasm-gc/debug/check/dep/dep.blackbox_test.mi -pkg moon_new/dep_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/dep/dep.mi:dep -pkg-sources moon_new/dep_blackbox_test:./dep -target wasm-gc -blackbox-test -workspace-path .
         "#]],
     );
     check(
         get_stdout(&dir, ["build", "--dry-run", "--sort-input"]),
         expect![[r#"
-            moonc build-package ./dep/hello.mbt -o ./target/wasm-gc/release/build/dep/dep.core -pkg moon_new/dep -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources moon_new/dep:./dep -target wasm-gc -workspace-path .
-            moonc build-package ./sub_pkg/111.mbt ./sub_pkg/dir/222.mbt -o ./target/wasm-gc/release/build/sub_pkg/sub_pkg_sub.core -pkg moon_new/sub_pkg -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/build/dep/dep.mi:dep -pkg-sources moon_new/sub_pkg:./sub_pkg -target wasm-gc -workspace-path .
-            moonc build-package ./dep2/hello.mbt -o ./target/wasm-gc/release/build/dep2/dep2.core -pkg moon_new/dep2 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/build/sub_pkg/sub_pkg_sub.mi:sub_pkg -pkg-sources moon_new/dep2:./dep2 -target wasm-gc -workspace-path .
-            moonc build-package ./sub_pkg/111.mbt ./sub_pkg/hello.mbt -o ./target/wasm-gc/release/build/sub_pkg/sub_pkg.core -pkg moon_new/sub_pkg -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/build/dep2/dep2.mi:dep2 -pkg-sources moon_new/sub_pkg:./sub_pkg -target wasm-gc -workspace-path .
-            moonc build-package ./main/main.mbt -o ./target/wasm-gc/release/build/main/main.core -pkg moon_new/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/build/sub_pkg/sub_pkg_sub.mi:sub_pkg -pkg-sources moon_new/main:./main -target wasm-gc -workspace-path .
-            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/release/build/dep2/dep2.core ./target/wasm-gc/release/build/sub_pkg/sub_pkg.core ./target/wasm-gc/release/build/main/main.core -main moon_new/main -o ./target/wasm-gc/release/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources moon_new/dep2:./dep2 -pkg-sources moon_new/sub_pkg:./sub_pkg -pkg-sources moon_new/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc
+            moonc build-package ./dep/hello.mbt -o ./target/wasm-gc/debug/build/dep/dep.core -pkg moon_new/dep -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources moon_new/dep:./dep -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./sub_pkg/111.mbt ./sub_pkg/dir/222.mbt -o ./target/wasm-gc/debug/build/sub_pkg/sub_pkg_sub.core -pkg moon_new/sub_pkg -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/build/dep/dep.mi:dep -pkg-sources moon_new/sub_pkg:./sub_pkg -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./dep2/hello.mbt -o ./target/wasm-gc/debug/build/dep2/dep2.core -pkg moon_new/dep2 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/build/sub_pkg/sub_pkg_sub.mi:sub_pkg -pkg-sources moon_new/dep2:./dep2 -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./sub_pkg/111.mbt ./sub_pkg/hello.mbt -o ./target/wasm-gc/debug/build/sub_pkg/sub_pkg.core -pkg moon_new/sub_pkg -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/build/dep2/dep2.mi:dep2 -pkg-sources moon_new/sub_pkg:./sub_pkg -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./main/main.mbt -o ./target/wasm-gc/debug/build/main/main.core -pkg moon_new/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/build/sub_pkg/sub_pkg_sub.mi:sub_pkg -pkg-sources moon_new/main:./main -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/debug/build/dep2/dep2.core ./target/wasm-gc/debug/build/sub_pkg/sub_pkg.core ./target/wasm-gc/debug/build/main/main.core -main moon_new/main -o ./target/wasm-gc/debug/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources moon_new/dep2:./dep2 -pkg-sources moon_new/sub_pkg:./sub_pkg -pkg-sources moon_new/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc -g -O0 -source-map
         "#]],
     );
     check(
         get_stdout(&dir, ["run", "main", "--dry-run", "--sort-input"]),
         expect![[r#"
-            moonc build-package ./dep/hello.mbt -o ./target/wasm-gc/release/build/dep/dep.core -pkg moon_new/dep -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources moon_new/dep:./dep -target wasm-gc -workspace-path .
-            moonc build-package ./sub_pkg/111.mbt ./sub_pkg/dir/222.mbt -o ./target/wasm-gc/release/build/sub_pkg/sub_pkg_sub.core -pkg moon_new/sub_pkg -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/build/dep/dep.mi:dep -pkg-sources moon_new/sub_pkg:./sub_pkg -target wasm-gc -workspace-path .
-            moonc build-package ./dep2/hello.mbt -o ./target/wasm-gc/release/build/dep2/dep2.core -pkg moon_new/dep2 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/build/sub_pkg/sub_pkg_sub.mi:sub_pkg -pkg-sources moon_new/dep2:./dep2 -target wasm-gc -workspace-path .
-            moonc build-package ./sub_pkg/111.mbt ./sub_pkg/hello.mbt -o ./target/wasm-gc/release/build/sub_pkg/sub_pkg.core -pkg moon_new/sub_pkg -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/build/dep2/dep2.mi:dep2 -pkg-sources moon_new/sub_pkg:./sub_pkg -target wasm-gc -workspace-path .
-            moonc build-package ./main/main.mbt -o ./target/wasm-gc/release/build/main/main.core -pkg moon_new/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/build/sub_pkg/sub_pkg_sub.mi:sub_pkg -pkg-sources moon_new/main:./main -target wasm-gc -workspace-path .
-            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/release/build/dep2/dep2.core ./target/wasm-gc/release/build/sub_pkg/sub_pkg.core ./target/wasm-gc/release/build/main/main.core -main moon_new/main -o ./target/wasm-gc/release/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources moon_new/dep2:./dep2 -pkg-sources moon_new/sub_pkg:./sub_pkg -pkg-sources moon_new/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc
-            moonrun ./target/wasm-gc/release/build/main/main.wasm
+            moonc build-package ./dep/hello.mbt -o ./target/wasm-gc/debug/build/dep/dep.core -pkg moon_new/dep -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources moon_new/dep:./dep -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./sub_pkg/111.mbt ./sub_pkg/dir/222.mbt -o ./target/wasm-gc/debug/build/sub_pkg/sub_pkg_sub.core -pkg moon_new/sub_pkg -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/build/dep/dep.mi:dep -pkg-sources moon_new/sub_pkg:./sub_pkg -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./dep2/hello.mbt -o ./target/wasm-gc/debug/build/dep2/dep2.core -pkg moon_new/dep2 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/build/sub_pkg/sub_pkg_sub.mi:sub_pkg -pkg-sources moon_new/dep2:./dep2 -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./sub_pkg/111.mbt ./sub_pkg/hello.mbt -o ./target/wasm-gc/debug/build/sub_pkg/sub_pkg.core -pkg moon_new/sub_pkg -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/build/dep2/dep2.mi:dep2 -pkg-sources moon_new/sub_pkg:./sub_pkg -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./main/main.mbt -o ./target/wasm-gc/debug/build/main/main.core -pkg moon_new/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/build/sub_pkg/sub_pkg_sub.mi:sub_pkg -pkg-sources moon_new/main:./main -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/debug/build/dep2/dep2.core ./target/wasm-gc/debug/build/sub_pkg/sub_pkg.core ./target/wasm-gc/debug/build/main/main.core -main moon_new/main -o ./target/wasm-gc/debug/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources moon_new/dep2:./dep2 -pkg-sources moon_new/sub_pkg:./sub_pkg -pkg-sources moon_new/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc -g -O0 -source-map
+            moonrun ./target/wasm-gc/debug/build/main/main.wasm
         "#]],
     );
 }
diff --git a/crates/moon/tests/test_cases/moon_build_package.in/moon.test b/crates/moon/tests/test_cases/moon_build_package.in/moon.test
index 69f83039b..08397c2ed 100644
--- a/crates/moon/tests/test_cases/moon_build_package.in/moon.test
+++ b/crates/moon/tests/test_cases/moon_build_package.in/moon.test
@@ -1,32 +1,32 @@
   $ moon build --dry-run
-  moonc build-package ./src/lib/hello.mbt -o ./target/wasm-gc/release/build/lib/lib.core -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./src/lib -target wasm-gc -workspace-path .
-  moonc build-package ./src/top.mbt -o ./target/wasm-gc/release/build/hello.core -pkg username/hello -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/build/lib/lib.mi:lib -pkg-sources username/hello:./src -target wasm-gc -workspace-path .
+  moonc build-package ./src/lib/hello.mbt -o ./target/wasm-gc/debug/build/lib/lib.core -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./src/lib -target wasm-gc -g -O0 -source-map -workspace-path .
+  moonc build-package ./src/top.mbt -o ./target/wasm-gc/debug/build/hello.core -pkg username/hello -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/build/lib/lib.mi:lib -pkg-sources username/hello:./src -target wasm-gc -g -O0 -source-map -workspace-path .
   
   $ moon build --build-graph --sort-input
   
-  generated build graph: ${WORK_DIR}/target/wasm-gc/release/build/build_graph.dot
+  generated build graph: ${WORK_DIR}/target/wasm-gc/debug/build/build_graph.dot
   Finished. moon: ran 2 tasks, now up to date
   
-  $ xls ./target/wasm-gc/release/build/lib/
+  $ xls ./target/wasm-gc/debug/build/lib/
   lib.core lib.mi
-  $ xls ./target/wasm-gc/release/build/
+  $ xls ./target/wasm-gc/debug/build/
   .moon-lock build.moon_db build.output build_graph.dot hello.core hello.mi lib moon.db
-  $ xcat ./target/wasm-gc/release/build/build_graph.dot
+  $ xcat ./target/wasm-gc/debug/build/build_graph.dot
   digraph BuildGraph {
-      "./target/wasm-gc/release/build/hello.core" [shape=box, style=filled, fillcolor=black, fontcolor=white];
-      "./target/wasm-gc/release/build/hello.mi" [shape=box, color=black, ];
+      "./target/wasm-gc/debug/build/hello.core" [shape=box, style=filled, fillcolor=black, fontcolor=white];
+      "./target/wasm-gc/debug/build/hello.mi" [shape=box, color=black, ];
       "./src/top.mbt" [shape=box, color=black, ];
-      "./target/wasm-gc/release/build/lib/lib.mi" [shape=box, color=black, ];
-      "./target/wasm-gc/release/build/lib/lib.core" [shape=box, style=filled, fillcolor=black, fontcolor=white];
+      "./target/wasm-gc/debug/build/lib/lib.mi" [shape=box, color=black, ];
+      "./target/wasm-gc/debug/build/lib/lib.core" [shape=box, style=filled, fillcolor=black, fontcolor=white];
       "./src/lib/hello.mbt" [shape=box, color=black, ];
       "build-package: username/hello" [shape=ellipse];
       "./src/top.mbt" -> "build-package: username/hello";
-      "./target/wasm-gc/release/build/lib/lib.mi" -> "build-package: username/hello";
-      "build-package: username/hello" -> "./target/wasm-gc/release/build/hello.core";
-      "build-package: username/hello" -> "./target/wasm-gc/release/build/hello.mi";
+      "./target/wasm-gc/debug/build/lib/lib.mi" -> "build-package: username/hello";
+      "build-package: username/hello" -> "./target/wasm-gc/debug/build/hello.core";
+      "build-package: username/hello" -> "./target/wasm-gc/debug/build/hello.mi";
       "build-package: username/hello/lib" [shape=ellipse];
       "./src/lib/hello.mbt" -> "build-package: username/hello/lib";
-      "build-package: username/hello/lib" -> "./target/wasm-gc/release/build/lib/lib.core";
-      "build-package: username/hello/lib" -> "./target/wasm-gc/release/build/lib/lib.mi";
+      "build-package: username/hello/lib" -> "./target/wasm-gc/debug/build/lib/lib.core";
+      "build-package: username/hello/lib" -> "./target/wasm-gc/debug/build/lib/lib.mi";
   }
   
diff --git a/crates/moon/tests/test_cases/moon_bundle/mod.rs b/crates/moon/tests/test_cases/moon_bundle/mod.rs
index 75ccc3475..8adf68d3f 100644
--- a/crates/moon/tests/test_cases/moon_bundle/mod.rs
+++ b/crates/moon/tests/test_cases/moon_bundle/mod.rs
@@ -6,11 +6,11 @@ fn test_moon_bundle() {
     check(
         get_stdout(&dir, ["bundle", "--dry-run", "--sort-input"]),
         expect![[r#"
-            moonc build-package -o ./target/wasm-gc/release/bundle/prelude/prelude.core -pkg moonbitlang/core/prelude -pkg-sources moonbitlang/core/prelude:./prelude -target wasm-gc
-            moonc build-package ./Orphan/lib.mbt -o ./target/wasm-gc/release/bundle/Orphan/Orphan.core -pkg moonbitlang/core/Orphan -pkg-sources moonbitlang/core/Orphan:./Orphan -target wasm-gc
-            moonc build-package ./A/lib.mbt -o ./target/wasm-gc/release/bundle/A/A.core -pkg moonbitlang/core/A -pkg-sources moonbitlang/core/A:./A -target wasm-gc
-            moonc build-package ./C/lib.mbt -o ./target/wasm-gc/release/bundle/C/C.core -pkg moonbitlang/core/C -i ./target/wasm-gc/release/bundle/A/A.mi:A -pkg-sources moonbitlang/core/C:./C -target wasm-gc
-            moonc build-package ./B/lib.mbt -o ./target/wasm-gc/release/bundle/B/B.core -pkg moonbitlang/core/B -i ./target/wasm-gc/release/bundle/A/A.mi:A -pkg-sources moonbitlang/core/B:./B -target wasm-gc
+            moonc build-package -o ./target/wasm-gc/release/bundle/prelude/prelude.core -pkg moonbitlang/core/prelude -pkg-sources moonbitlang/core/prelude:./prelude -target wasm-gc -g -source-map
+            moonc build-package ./Orphan/lib.mbt -o ./target/wasm-gc/release/bundle/Orphan/Orphan.core -pkg moonbitlang/core/Orphan -pkg-sources moonbitlang/core/Orphan:./Orphan -target wasm-gc -g -source-map
+            moonc build-package ./A/lib.mbt -o ./target/wasm-gc/release/bundle/A/A.core -pkg moonbitlang/core/A -pkg-sources moonbitlang/core/A:./A -target wasm-gc -g -source-map
+            moonc build-package ./C/lib.mbt -o ./target/wasm-gc/release/bundle/C/C.core -pkg moonbitlang/core/C -i ./target/wasm-gc/release/bundle/A/A.mi:A -pkg-sources moonbitlang/core/C:./C -target wasm-gc -g -source-map
+            moonc build-package ./B/lib.mbt -o ./target/wasm-gc/release/bundle/B/B.core -pkg moonbitlang/core/B -i ./target/wasm-gc/release/bundle/A/A.mi:A -pkg-sources moonbitlang/core/B:./B -target wasm-gc -g -source-map
             moonc bundle-core ./target/wasm-gc/release/bundle/A/A.core ./target/wasm-gc/release/bundle/B/B.core ./target/wasm-gc/release/bundle/C/C.core ./target/wasm-gc/release/bundle/Orphan/Orphan.core ./target/wasm-gc/release/bundle/prelude/prelude.core -o ./target/wasm-gc/release/bundle/core.core
         "#]],
     );
diff --git a/crates/moon/tests/test_cases/moon_commands/mod.rs b/crates/moon/tests/test_cases/moon_commands/mod.rs
index f1e324b06..e510ace4e 100644
--- a/crates/moon/tests/test_cases/moon_commands/mod.rs
+++ b/crates/moon/tests/test_cases/moon_commands/mod.rs
@@ -6,12 +6,12 @@ fn test_moon_cmd() {
     check(
         get_stdout(&dir, ["build", "--dry-run", "--nostd", "--sort-input"]),
         expect![[r#"
-            moonc build-package ./lib/list/lib.mbt -o ./target/wasm-gc/release/build/lib/list/list.core -pkg design/lib/list -pkg-sources design/lib/list:./lib/list -target wasm-gc -workspace-path .
-            moonc build-package ./lib/queue/lib.mbt -o ./target/wasm-gc/release/build/lib/queue/queue.core -pkg design/lib/queue -i ./target/wasm-gc/release/build/lib/list/list.mi:list -pkg-sources design/lib/queue:./lib/queue -target wasm-gc -workspace-path .
-            moonc build-package ./main2/main.mbt -o ./target/wasm-gc/release/build/main2/main2.core -pkg design/main2 -is-main -i ./target/wasm-gc/release/build/lib/queue/queue.mi:queue -pkg-sources design/main2:./main2 -target wasm-gc -workspace-path .
-            moonc link-core ./target/wasm-gc/release/build/lib/list/list.core ./target/wasm-gc/release/build/lib/queue/queue.core ./target/wasm-gc/release/build/main2/main2.core -main design/main2 -o ./target/wasm-gc/release/build/main2/main2.wasm -pkg-config-path ./main2/moon.pkg.json -pkg-sources design/lib/list:./lib/list -pkg-sources design/lib/queue:./lib/queue -pkg-sources design/main2:./main2 -target wasm-gc
-            moonc build-package ./main1/main.mbt -o ./target/wasm-gc/release/build/main1/main1.core -pkg design/main1 -is-main -i ./target/wasm-gc/release/build/lib/queue/queue.mi:queue -pkg-sources design/main1:./main1 -target wasm-gc -workspace-path .
-            moonc link-core ./target/wasm-gc/release/build/lib/list/list.core ./target/wasm-gc/release/build/lib/queue/queue.core ./target/wasm-gc/release/build/main1/main1.core -main design/main1 -o ./target/wasm-gc/release/build/main1/main1.wasm -pkg-config-path ./main1/moon.pkg.json -pkg-sources design/lib/list:./lib/list -pkg-sources design/lib/queue:./lib/queue -pkg-sources design/main1:./main1 -target wasm-gc
+            moonc build-package ./lib/list/lib.mbt -o ./target/wasm-gc/debug/build/lib/list/list.core -pkg design/lib/list -pkg-sources design/lib/list:./lib/list -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./lib/queue/lib.mbt -o ./target/wasm-gc/debug/build/lib/queue/queue.core -pkg design/lib/queue -i ./target/wasm-gc/debug/build/lib/list/list.mi:list -pkg-sources design/lib/queue:./lib/queue -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./main2/main.mbt -o ./target/wasm-gc/debug/build/main2/main2.core -pkg design/main2 -is-main -i ./target/wasm-gc/debug/build/lib/queue/queue.mi:queue -pkg-sources design/main2:./main2 -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core ./target/wasm-gc/debug/build/lib/list/list.core ./target/wasm-gc/debug/build/lib/queue/queue.core ./target/wasm-gc/debug/build/main2/main2.core -main design/main2 -o ./target/wasm-gc/debug/build/main2/main2.wasm -pkg-config-path ./main2/moon.pkg.json -pkg-sources design/lib/list:./lib/list -pkg-sources design/lib/queue:./lib/queue -pkg-sources design/main2:./main2 -target wasm-gc -g -O0 -source-map
+            moonc build-package ./main1/main.mbt -o ./target/wasm-gc/debug/build/main1/main1.core -pkg design/main1 -is-main -i ./target/wasm-gc/debug/build/lib/queue/queue.mi:queue -pkg-sources design/main1:./main1 -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core ./target/wasm-gc/debug/build/lib/list/list.core ./target/wasm-gc/debug/build/lib/queue/queue.core ./target/wasm-gc/debug/build/main1/main1.core -main design/main1 -o ./target/wasm-gc/debug/build/main1/main1.wasm -pkg-config-path ./main1/moon.pkg.json -pkg-sources design/lib/list:./lib/list -pkg-sources design/lib/queue:./lib/queue -pkg-sources design/main1:./main1 -target wasm-gc -g -O0 -source-map
         "#]],
     );
 }
diff --git a/crates/moon/tests/test_cases/moon_test/mod.rs b/crates/moon/tests/test_cases/moon_test/mod.rs
index ba7c02dfc..d5d0e13af 100644
--- a/crates/moon/tests/test_cases/moon_test/mod.rs
+++ b/crates/moon/tests/test_cases/moon_test/mod.rs
@@ -199,13 +199,13 @@ fn test_pkg_source_in() {
     check(
         &out,
         expect![[r#"
-            moonc build-package ./mods/lijunchen/mooncake2/src/lib/hello.mbt -w -a -alert -all -o ./target/wasm-gc/release/build/.mooncakes/lijunchen/mooncake2/lib/lib.core -pkg lijunchen/mooncake2/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources lijunchen/mooncake2/lib:./mods/lijunchen/mooncake2/src/lib -target wasm-gc -workspace-path ./mods/lijunchen/mooncake2
-            moonc build-package ./mods/lijunchen/mooncake2/src/top.mbt -w -a -alert -all -o ./target/wasm-gc/release/build/.mooncakes/lijunchen/mooncake2/mooncake2.core -pkg lijunchen/mooncake2 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/build/.mooncakes/lijunchen/mooncake2/lib/lib.mi:lib -pkg-sources lijunchen/mooncake2:./mods/lijunchen/mooncake2/src -target wasm-gc -workspace-path ./mods/lijunchen/mooncake2
-            moonc build-package ./mods/lijunchen/mooncake/lib/hello.mbt -w -a -alert -all -o ./target/wasm-gc/release/build/.mooncakes/lijunchen/mooncake/lib/lib.core -pkg lijunchen/mooncake/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources lijunchen/mooncake/lib:./mods/lijunchen/mooncake/lib -target wasm-gc -workspace-path ./mods/lijunchen/mooncake
-            moonc build-package ./mods/lijunchen/mooncake/top.mbt -w -a -alert -all -o ./target/wasm-gc/release/build/.mooncakes/lijunchen/mooncake/mooncake.core -pkg lijunchen/mooncake -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/build/.mooncakes/lijunchen/mooncake/lib/lib.mi:lib -pkg-sources lijunchen/mooncake:./mods/lijunchen/mooncake -target wasm-gc -workspace-path ./mods/lijunchen/mooncake
-            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/release/build/lib/lib.core -pkg hello31/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources hello31/lib:./lib -target wasm-gc -workspace-path .
-            moonc build-package ./main/main.mbt -o ./target/wasm-gc/release/build/main/main.core -pkg hello31/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/build/lib/lib.mi:lib -i ./target/wasm-gc/release/build/.mooncakes/lijunchen/mooncake/mooncake.mi:mooncake -i ./target/wasm-gc/release/build/.mooncakes/lijunchen/mooncake2/mooncake2.mi:mooncake2 -pkg-sources hello31/main:./main -target wasm-gc -workspace-path .
-            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/release/build/lib/lib.core ./target/wasm-gc/release/build/.mooncakes/lijunchen/mooncake/lib/lib.core ./target/wasm-gc/release/build/.mooncakes/lijunchen/mooncake/mooncake.core ./target/wasm-gc/release/build/.mooncakes/lijunchen/mooncake2/lib/lib.core ./target/wasm-gc/release/build/.mooncakes/lijunchen/mooncake2/mooncake2.core ./target/wasm-gc/release/build/main/main.core -main hello31/main -o ./target/wasm-gc/release/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources hello31/lib:./lib -pkg-sources lijunchen/mooncake/lib:./mods/lijunchen/mooncake/lib -pkg-sources lijunchen/mooncake:./mods/lijunchen/mooncake -pkg-sources lijunchen/mooncake2/lib:./mods/lijunchen/mooncake2/src/lib -pkg-sources lijunchen/mooncake2:./mods/lijunchen/mooncake2/src -pkg-sources hello31/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc
+            moonc build-package ./mods/lijunchen/mooncake2/src/lib/hello.mbt -w -a -alert -all -o ./target/wasm-gc/debug/build/.mooncakes/lijunchen/mooncake2/lib/lib.core -pkg lijunchen/mooncake2/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources lijunchen/mooncake2/lib:./mods/lijunchen/mooncake2/src/lib -target wasm-gc -g -O0 -source-map -workspace-path ./mods/lijunchen/mooncake2
+            moonc build-package ./mods/lijunchen/mooncake2/src/top.mbt -w -a -alert -all -o ./target/wasm-gc/debug/build/.mooncakes/lijunchen/mooncake2/mooncake2.core -pkg lijunchen/mooncake2 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/build/.mooncakes/lijunchen/mooncake2/lib/lib.mi:lib -pkg-sources lijunchen/mooncake2:./mods/lijunchen/mooncake2/src -target wasm-gc -g -O0 -source-map -workspace-path ./mods/lijunchen/mooncake2
+            moonc build-package ./mods/lijunchen/mooncake/lib/hello.mbt -w -a -alert -all -o ./target/wasm-gc/debug/build/.mooncakes/lijunchen/mooncake/lib/lib.core -pkg lijunchen/mooncake/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources lijunchen/mooncake/lib:./mods/lijunchen/mooncake/lib -target wasm-gc -g -O0 -source-map -workspace-path ./mods/lijunchen/mooncake
+            moonc build-package ./mods/lijunchen/mooncake/top.mbt -w -a -alert -all -o ./target/wasm-gc/debug/build/.mooncakes/lijunchen/mooncake/mooncake.core -pkg lijunchen/mooncake -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/build/.mooncakes/lijunchen/mooncake/lib/lib.mi:lib -pkg-sources lijunchen/mooncake:./mods/lijunchen/mooncake -target wasm-gc -g -O0 -source-map -workspace-path ./mods/lijunchen/mooncake
+            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/debug/build/lib/lib.core -pkg hello31/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources hello31/lib:./lib -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./main/main.mbt -o ./target/wasm-gc/debug/build/main/main.core -pkg hello31/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/build/lib/lib.mi:lib -i ./target/wasm-gc/debug/build/.mooncakes/lijunchen/mooncake/mooncake.mi:mooncake -i ./target/wasm-gc/debug/build/.mooncakes/lijunchen/mooncake2/mooncake2.mi:mooncake2 -pkg-sources hello31/main:./main -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/debug/build/lib/lib.core ./target/wasm-gc/debug/build/.mooncakes/lijunchen/mooncake/lib/lib.core ./target/wasm-gc/debug/build/.mooncakes/lijunchen/mooncake/mooncake.core ./target/wasm-gc/debug/build/.mooncakes/lijunchen/mooncake2/lib/lib.core ./target/wasm-gc/debug/build/.mooncakes/lijunchen/mooncake2/mooncake2.core ./target/wasm-gc/debug/build/main/main.core -main hello31/main -o ./target/wasm-gc/debug/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources hello31/lib:./lib -pkg-sources lijunchen/mooncake/lib:./mods/lijunchen/mooncake/lib -pkg-sources lijunchen/mooncake:./mods/lijunchen/mooncake -pkg-sources lijunchen/mooncake2/lib:./mods/lijunchen/mooncake2/src/lib -pkg-sources lijunchen/mooncake2:./mods/lijunchen/mooncake2/src -pkg-sources hello31/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc -g -O0 -source-map
         "#]],
     );
     assert!(out.contains("lijunchen/mooncake:./mods/lijunchen/mooncake"));
diff --git a/crates/moon/tests/test_cases/output_format/mod.rs b/crates/moon/tests/test_cases/output_format/mod.rs
index db2e9f52b..bbc15b19d 100644
--- a/crates/moon/tests/test_cases/output_format/mod.rs
+++ b/crates/moon/tests/test_cases/output_format/mod.rs
@@ -17,14 +17,14 @@ fn test_output_format() {
         .success();
     assert!(
         dir.join(format!(
-            "target/{}/release/build/main/main.wasm",
+            "target/{}/debug/build/main/main.wasm",
             TargetBackend::default().to_backend_ext()
         ))
         .exists()
     );
     assert!(
         !dir.join(format!(
-            "target/{}/release/build/main/main.wat",
+            "target/{}/debug/build/main/main.wat",
             TargetBackend::default().to_backend_ext()
         ))
         .exists()
@@ -43,14 +43,14 @@ fn test_output_format() {
         .success();
     assert!(
         dir.join(format!(
-            "target/{}/release/build/main/main.wat",
+            "target/{}/debug/build/main/main.wat",
             TargetBackend::default().to_backend_ext()
         ))
         .exists()
     );
     assert!(
         !dir.join(format!(
-            "target/{}/release/build/main/main.wasm",
+            "target/{}/debug/build/main/main.wasm",
             TargetBackend::default().to_backend_ext()
         ))
         .exists()
@@ -69,14 +69,14 @@ fn test_output_format() {
         .success();
     assert!(
         !dir.join(format!(
-            "target/{}/release/build/main/main.wat",
+            "target/{}/debug/build/main/main.wat",
             TargetBackend::default().to_backend_ext()
         ))
         .exists()
     );
     assert!(
         dir.join(format!(
-            "target/{}/release/build/main/main.wasm",
+            "target/{}/debug/build/main/main.wasm",
             TargetBackend::default().to_backend_ext()
         ))
         .exists()
diff --git a/crates/moon/tests/test_cases/packages/mod.rs b/crates/moon/tests/test_cases/packages/mod.rs
index 2d68c4af1..5fe7ca074 100644
--- a/crates/moon/tests/test_cases/packages/mod.rs
+++ b/crates/moon/tests/test_cases/packages/mod.rs
@@ -28,11 +28,11 @@ fn test_core_order() {
     check(
         get_stdout(&dir, ["build", "--dry-run", "--nostd"]),
         expect![[r#"
-            moonc build-package ./T/t.mbt -o ./target/wasm-gc/release/build/T/T.core -pkg lijunchen/hello/T -pkg-sources lijunchen/hello/T:./T -target wasm-gc -workspace-path .
-            moonc build-package ./B/b.mbt -o ./target/wasm-gc/release/build/B/B.core -pkg lijunchen/hello/B -i ./target/wasm-gc/release/build/T/T.mi:T -pkg-sources lijunchen/hello/B:./B -target wasm-gc -workspace-path .
-            moonc build-package ./A/a.mbt -o ./target/wasm-gc/release/build/A/A.core -pkg lijunchen/hello/A -i ./target/wasm-gc/release/build/T/T.mi:T -pkg-sources lijunchen/hello/A:./A -target wasm-gc -workspace-path .
-            moonc build-package ./main/main.mbt -o ./target/wasm-gc/release/build/main/main.core -pkg lijunchen/hello/main -is-main -i ./target/wasm-gc/release/build/A/A.mi:A -i ./target/wasm-gc/release/build/B/B.mi:B -pkg-sources lijunchen/hello/main:./main -target wasm-gc -workspace-path .
-            moonc link-core ./target/wasm-gc/release/build/T/T.core ./target/wasm-gc/release/build/A/A.core ./target/wasm-gc/release/build/B/B.core ./target/wasm-gc/release/build/main/main.core -main lijunchen/hello/main -o ./target/wasm-gc/release/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources lijunchen/hello/T:./T -pkg-sources lijunchen/hello/A:./A -pkg-sources lijunchen/hello/B:./B -pkg-sources lijunchen/hello/main:./main -target wasm-gc
+            moonc build-package ./T/t.mbt -o ./target/wasm-gc/debug/build/T/T.core -pkg lijunchen/hello/T -pkg-sources lijunchen/hello/T:./T -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./B/b.mbt -o ./target/wasm-gc/debug/build/B/B.core -pkg lijunchen/hello/B -i ./target/wasm-gc/debug/build/T/T.mi:T -pkg-sources lijunchen/hello/B:./B -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./A/a.mbt -o ./target/wasm-gc/debug/build/A/A.core -pkg lijunchen/hello/A -i ./target/wasm-gc/debug/build/T/T.mi:T -pkg-sources lijunchen/hello/A:./A -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./main/main.mbt -o ./target/wasm-gc/debug/build/main/main.core -pkg lijunchen/hello/main -is-main -i ./target/wasm-gc/debug/build/A/A.mi:A -i ./target/wasm-gc/debug/build/B/B.mi:B -pkg-sources lijunchen/hello/main:./main -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core ./target/wasm-gc/debug/build/T/T.core ./target/wasm-gc/debug/build/A/A.core ./target/wasm-gc/debug/build/B/B.core ./target/wasm-gc/debug/build/main/main.core -main lijunchen/hello/main -o ./target/wasm-gc/debug/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources lijunchen/hello/T:./T -pkg-sources lijunchen/hello/A:./A -pkg-sources lijunchen/hello/B:./B -pkg-sources lijunchen/hello/main:./main -target wasm-gc -g -O0 -source-map
         "#]],
     );
 }
diff --git a/crates/moon/tests/test_cases/prebuild_config_script/mod.rs b/crates/moon/tests/test_cases/prebuild_config_script/mod.rs
index 094b2b63b..39b7b0f3c 100644
--- a/crates/moon/tests/test_cases/prebuild_config_script/mod.rs
+++ b/crates/moon/tests/test_cases/prebuild_config_script/mod.rs
@@ -30,12 +30,12 @@ fn test_prebuild_config_common(dir: TestDir) {
             assert!(line.contains("HELLO=------this-is-added-by-config-script------"));
         }
 
-        if line.contains("cc -o ./target/native/release/build/main/main") && cfg!(unix) {
+        if line.contains("cc -o ./target/native/debug/build/main/main") && cfg!(unix) {
             found_link_flags.set(()).expect("final linking found twice");
             assert!(line.contains("-l______this_is_added_by_config_script_______"));
             assert!(line.contains("-lmylib"));
             assert!(line.contains("-L/my-search-path"));
-        } else if line.contains("cl.exe /Fe./target/native/release/build/main/main.exe")
+        } else if line.contains("cl.exe /Fe./target/native/debug/build/main/main.exe")
             && cfg!(windows)
         {
             found_link_flags.set(()).expect("final linking found twice");
diff --git a/crates/moon/tests/test_cases/specify_source_dir_001.in/moon.test b/crates/moon/tests/test_cases/specify_source_dir_001.in/moon.test
index 116690259..69ba46c7d 100644
--- a/crates/moon/tests/test_cases/specify_source_dir_001.in/moon.test
+++ b/crates/moon/tests/test_cases/specify_source_dir_001.in/moon.test
@@ -1,13 +1,13 @@
   $ moon check --dry-run --sort-input
-  moonc check ./src/lib/hello.mbt -o ./target/wasm-gc/release/check/lib/lib.mi -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./src/lib -target wasm-gc -workspace-path .
-  moonc check ./src/main/main.mbt -o ./target/wasm-gc/release/check/main/main.mi -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib/lib.mi:lib -pkg-sources username/hello/main:./src/main -target wasm-gc -workspace-path .
-  moonc check -doctest-only ./src/main/main.mbt -include-doctests -o ./target/wasm-gc/release/check/main/main.blackbox_test.mi -pkg username/hello/main_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/main/main.mi:main -i ./target/wasm-gc/release/check/lib/lib.mi:lib -pkg-sources username/hello/main_blackbox_test:./src/main -target wasm-gc -blackbox-test -workspace-path .
-  moonc check ./src/lib/hello_test.mbt -doctest-only ./src/lib/hello.mbt -include-doctests -o ./target/wasm-gc/release/check/lib/lib.blackbox_test.mi -pkg username/hello/lib_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib/lib.mi:lib -pkg-sources username/hello/lib_blackbox_test:./src/lib -target wasm-gc -blackbox-test -workspace-path .
+  moonc check ./src/lib/hello.mbt -o ./target/wasm-gc/debug/check/lib/lib.mi -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./src/lib -target wasm-gc -workspace-path .
+  moonc check ./src/main/main.mbt -o ./target/wasm-gc/debug/check/main/main.mi -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib/lib.mi:lib -pkg-sources username/hello/main:./src/main -target wasm-gc -workspace-path .
+  moonc check -doctest-only ./src/main/main.mbt -include-doctests -o ./target/wasm-gc/debug/check/main/main.blackbox_test.mi -pkg username/hello/main_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/main/main.mi:main -i ./target/wasm-gc/debug/check/lib/lib.mi:lib -pkg-sources username/hello/main_blackbox_test:./src/main -target wasm-gc -blackbox-test -workspace-path .
+  moonc check ./src/lib/hello_test.mbt -doctest-only ./src/lib/hello.mbt -include-doctests -o ./target/wasm-gc/debug/check/lib/lib.blackbox_test.mi -pkg username/hello/lib_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib/lib.mi:lib -pkg-sources username/hello/lib_blackbox_test:./src/lib -target wasm-gc -blackbox-test -workspace-path .
   
   $ moon build --dry-run --sort-input
-  moonc build-package ./src/lib/hello.mbt -o ./target/wasm-gc/release/build/lib/lib.core -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./src/lib -target wasm-gc -workspace-path .
-  moonc build-package ./src/main/main.mbt -o ./target/wasm-gc/release/build/main/main.core -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/build/lib/lib.mi:lib -pkg-sources username/hello/main:./src/main -target wasm-gc -workspace-path .
-  moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/release/build/lib/lib.core ./target/wasm-gc/release/build/main/main.core -main username/hello/main -o ./target/wasm-gc/release/build/main/main.wasm -pkg-config-path ./src/main/moon.pkg.json -pkg-sources username/hello/lib:./src/lib -pkg-sources username/hello/main:./src/main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc
+  moonc build-package ./src/lib/hello.mbt -o ./target/wasm-gc/debug/build/lib/lib.core -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./src/lib -target wasm-gc -g -O0 -source-map -workspace-path .
+  moonc build-package ./src/main/main.mbt -o ./target/wasm-gc/debug/build/main/main.core -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/build/lib/lib.mi:lib -pkg-sources username/hello/main:./src/main -target wasm-gc -g -O0 -source-map -workspace-path .
+  moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/debug/build/lib/lib.core ./target/wasm-gc/debug/build/main/main.core -main username/hello/main -o ./target/wasm-gc/debug/build/main/main.wasm -pkg-config-path ./src/main/moon.pkg.json -pkg-sources username/hello/lib:./src/lib -pkg-sources username/hello/main:./src/main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc -g -O0 -source-map
   
   $ moon test --dry-run --sort-input
   moonc build-package ./src/lib/hello.mbt -o ./target/wasm-gc/debug/test/lib/lib.core -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./src/lib -target wasm-gc -g -O0 -source-map -workspace-path .
@@ -75,7 +75,7 @@
         "deps": [],
         "wbtest-deps": [],
         "test-deps": [],
-        "artifact": "${WORK_DIR}/target/wasm-gc/release/check/lib/lib.mi"
+        "artifact": "${WORK_DIR}/target/wasm-gc/debug/check/lib/lib.mi"
       },
       {
         "is-main": true,
@@ -110,12 +110,12 @@
         ],
         "wbtest-deps": [],
         "test-deps": [],
-        "artifact": "${WORK_DIR}/target/wasm-gc/release/check/main/main.mi"
+        "artifact": "${WORK_DIR}/target/wasm-gc/debug/check/main/main.mi"
       }
     ],
     "deps": [],
     "backend": "wasm-gc",
-    "opt_level": "release",
+    "opt_level": "debug",
     "source": "src"
   }
   $ moon build
diff --git a/crates/moon/tests/test_cases/target_backend/mod.rs b/crates/moon/tests/test_cases/target_backend/mod.rs
index 2c2417fb5..1b5cc6aa2 100644
--- a/crates/moon/tests/test_cases/target_backend/mod.rs
+++ b/crates/moon/tests/test_cases/target_backend/mod.rs
@@ -6,9 +6,9 @@ fn test_target_backend() {
     check(
         get_stdout(&dir, ["build", "--dry-run", "--nostd"]),
         expect![[r#"
-            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/release/build/lib/lib.core -pkg hello/lib -pkg-sources hello/lib:./lib -target wasm-gc -workspace-path .
-            moonc build-package ./main/main.mbt -o ./target/wasm-gc/release/build/main/main.core -pkg hello/main -is-main -i ./target/wasm-gc/release/build/lib/lib.mi:lib -pkg-sources hello/main:./main -target wasm-gc -workspace-path .
-            moonc link-core ./target/wasm-gc/release/build/lib/lib.core ./target/wasm-gc/release/build/main/main.core -main hello/main -o ./target/wasm-gc/release/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources hello/lib:./lib -pkg-sources hello/main:./main -target wasm-gc
+            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/debug/build/lib/lib.core -pkg hello/lib -pkg-sources hello/lib:./lib -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./main/main.mbt -o ./target/wasm-gc/debug/build/main/main.core -pkg hello/main -is-main -i ./target/wasm-gc/debug/build/lib/lib.mi:lib -pkg-sources hello/main:./main -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core ./target/wasm-gc/debug/build/lib/lib.core ./target/wasm-gc/debug/build/main/main.core -main hello/main -o ./target/wasm-gc/debug/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources hello/lib:./lib -pkg-sources hello/main:./main -target wasm-gc -g -O0 -source-map
         "#]],
     );
     check(
@@ -17,34 +17,34 @@ fn test_target_backend() {
             ["build", "--dry-run", "--target", "wasm-gc", "--nostd"],
         ),
         expect![[r#"
-            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/release/build/lib/lib.core -pkg hello/lib -pkg-sources hello/lib:./lib -target wasm-gc -workspace-path .
-            moonc build-package ./main/main.mbt -o ./target/wasm-gc/release/build/main/main.core -pkg hello/main -is-main -i ./target/wasm-gc/release/build/lib/lib.mi:lib -pkg-sources hello/main:./main -target wasm-gc -workspace-path .
-            moonc link-core ./target/wasm-gc/release/build/lib/lib.core ./target/wasm-gc/release/build/main/main.core -main hello/main -o ./target/wasm-gc/release/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources hello/lib:./lib -pkg-sources hello/main:./main -target wasm-gc
+            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/debug/build/lib/lib.core -pkg hello/lib -pkg-sources hello/lib:./lib -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./main/main.mbt -o ./target/wasm-gc/debug/build/main/main.core -pkg hello/main -is-main -i ./target/wasm-gc/debug/build/lib/lib.mi:lib -pkg-sources hello/main:./main -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core ./target/wasm-gc/debug/build/lib/lib.core ./target/wasm-gc/debug/build/main/main.core -main hello/main -o ./target/wasm-gc/debug/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources hello/lib:./lib -pkg-sources hello/main:./main -target wasm-gc -g -O0 -source-map
         "#]],
     );
     check(
         get_stdout(&dir, ["build", "--dry-run", "--target", "js", "--nostd"]),
         expect![[r#"
-            moonc build-package ./lib/hello.mbt -o ./target/js/release/build/lib/lib.core -pkg hello/lib -pkg-sources hello/lib:./lib -target js -workspace-path .
-            moonc build-package ./main/main.mbt -o ./target/js/release/build/main/main.core -pkg hello/main -is-main -i ./target/js/release/build/lib/lib.mi:lib -pkg-sources hello/main:./main -target js -workspace-path .
-            moonc link-core ./target/js/release/build/lib/lib.core ./target/js/release/build/main/main.core -main hello/main -o ./target/js/release/build/main/main.js -pkg-config-path ./main/moon.pkg.json -pkg-sources hello/lib:./lib -pkg-sources hello/main:./main -target js
+            moonc build-package ./lib/hello.mbt -o ./target/js/debug/build/lib/lib.core -pkg hello/lib -pkg-sources hello/lib:./lib -target js -g -O0 -source-map -workspace-path .
+            moonc build-package ./main/main.mbt -o ./target/js/debug/build/main/main.core -pkg hello/main -is-main -i ./target/js/debug/build/lib/lib.mi:lib -pkg-sources hello/main:./main -target js -g -O0 -source-map -workspace-path .
+            moonc link-core ./target/js/debug/build/lib/lib.core ./target/js/debug/build/main/main.core -main hello/main -o ./target/js/debug/build/main/main.js -pkg-config-path ./main/moon.pkg.json -pkg-sources hello/lib:./lib -pkg-sources hello/main:./main -target js -g -O0 -source-map
         "#]],
     );
     check(
         get_stdout(&dir, ["build", "--dry-run", "--nostd"]),
         expect![[r#"
-            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/release/build/lib/lib.core -pkg hello/lib -pkg-sources hello/lib:./lib -target wasm-gc -workspace-path .
-            moonc build-package ./main/main.mbt -o ./target/wasm-gc/release/build/main/main.core -pkg hello/main -is-main -i ./target/wasm-gc/release/build/lib/lib.mi:lib -pkg-sources hello/main:./main -target wasm-gc -workspace-path .
-            moonc link-core ./target/wasm-gc/release/build/lib/lib.core ./target/wasm-gc/release/build/main/main.core -main hello/main -o ./target/wasm-gc/release/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources hello/lib:./lib -pkg-sources hello/main:./main -target wasm-gc
+            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/debug/build/lib/lib.core -pkg hello/lib -pkg-sources hello/lib:./lib -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./main/main.mbt -o ./target/wasm-gc/debug/build/main/main.core -pkg hello/main -is-main -i ./target/wasm-gc/debug/build/lib/lib.mi:lib -pkg-sources hello/main:./main -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core ./target/wasm-gc/debug/build/lib/lib.core ./target/wasm-gc/debug/build/main/main.core -main hello/main -o ./target/wasm-gc/debug/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources hello/lib:./lib -pkg-sources hello/main:./main -target wasm-gc -g -O0 -source-map
         "#]],
     );
     check(
         get_stdout(&dir, ["run", "main", "--dry-run", "--nostd"]),
         expect![[r#"
-            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/release/build/lib/lib.core -pkg hello/lib -pkg-sources hello/lib:./lib -target wasm-gc -workspace-path .
-            moonc build-package ./main/main.mbt -o ./target/wasm-gc/release/build/main/main.core -pkg hello/main -is-main -i ./target/wasm-gc/release/build/lib/lib.mi:lib -pkg-sources hello/main:./main -target wasm-gc -workspace-path .
-            moonc link-core ./target/wasm-gc/release/build/lib/lib.core ./target/wasm-gc/release/build/main/main.core -main hello/main -o ./target/wasm-gc/release/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources hello/lib:./lib -pkg-sources hello/main:./main -target wasm-gc
-            moonrun ./target/wasm-gc/release/build/main/main.wasm
+            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/debug/build/lib/lib.core -pkg hello/lib -pkg-sources hello/lib:./lib -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./main/main.mbt -o ./target/wasm-gc/debug/build/main/main.core -pkg hello/main -is-main -i ./target/wasm-gc/debug/build/lib/lib.mi:lib -pkg-sources hello/main:./main -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core ./target/wasm-gc/debug/build/lib/lib.core ./target/wasm-gc/debug/build/main/main.core -main hello/main -o ./target/wasm-gc/debug/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources hello/lib:./lib -pkg-sources hello/main:./main -target wasm-gc -g -O0 -source-map
+            moonrun ./target/wasm-gc/debug/build/main/main.wasm
         "#]],
     );
     check(
@@ -53,10 +53,10 @@ fn test_target_backend() {
             ["run", "main", "--dry-run", "--target", "wasm-gc", "--nostd"],
         ),
         expect![[r#"
-            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/release/build/lib/lib.core -pkg hello/lib -pkg-sources hello/lib:./lib -target wasm-gc -workspace-path .
-            moonc build-package ./main/main.mbt -o ./target/wasm-gc/release/build/main/main.core -pkg hello/main -is-main -i ./target/wasm-gc/release/build/lib/lib.mi:lib -pkg-sources hello/main:./main -target wasm-gc -workspace-path .
-            moonc link-core ./target/wasm-gc/release/build/lib/lib.core ./target/wasm-gc/release/build/main/main.core -main hello/main -o ./target/wasm-gc/release/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources hello/lib:./lib -pkg-sources hello/main:./main -target wasm-gc
-            moonrun ./target/wasm-gc/release/build/main/main.wasm
+            moonc build-package ./lib/hello.mbt -o ./target/wasm-gc/debug/build/lib/lib.core -pkg hello/lib -pkg-sources hello/lib:./lib -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./main/main.mbt -o ./target/wasm-gc/debug/build/main/main.core -pkg hello/main -is-main -i ./target/wasm-gc/debug/build/lib/lib.mi:lib -pkg-sources hello/main:./main -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core ./target/wasm-gc/debug/build/lib/lib.core ./target/wasm-gc/debug/build/main/main.core -main hello/main -o ./target/wasm-gc/debug/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources hello/lib:./lib -pkg-sources hello/main:./main -target wasm-gc -g -O0 -source-map
+            moonrun ./target/wasm-gc/debug/build/main/main.wasm
         "#]],
     );
     check(
@@ -65,10 +65,10 @@ fn test_target_backend() {
             ["run", "main", "--dry-run", "--target", "js", "--nostd"],
         ),
         expect![[r#"
-            moonc build-package ./lib/hello.mbt -o ./target/js/release/build/lib/lib.core -pkg hello/lib -pkg-sources hello/lib:./lib -target js -workspace-path .
-            moonc build-package ./main/main.mbt -o ./target/js/release/build/main/main.core -pkg hello/main -is-main -i ./target/js/release/build/lib/lib.mi:lib -pkg-sources hello/main:./main -target js -workspace-path .
-            moonc link-core ./target/js/release/build/lib/lib.core ./target/js/release/build/main/main.core -main hello/main -o ./target/js/release/build/main/main.js -pkg-config-path ./main/moon.pkg.json -pkg-sources hello/lib:./lib -pkg-sources hello/main:./main -target js
-            node ./target/js/release/build/main/main.js
+            moonc build-package ./lib/hello.mbt -o ./target/js/debug/build/lib/lib.core -pkg hello/lib -pkg-sources hello/lib:./lib -target js -g -O0 -source-map -workspace-path .
+            moonc build-package ./main/main.mbt -o ./target/js/debug/build/main/main.core -pkg hello/main -is-main -i ./target/js/debug/build/lib/lib.mi:lib -pkg-sources hello/main:./main -target js -g -O0 -source-map -workspace-path .
+            moonc link-core ./target/js/debug/build/lib/lib.core ./target/js/debug/build/main/main.core -main hello/main -o ./target/js/debug/build/main/main.js -pkg-config-path ./main/moon.pkg.json -pkg-sources hello/lib:./lib -pkg-sources hello/main:./main -target js -g -O0 -source-map
+            node ./target/js/debug/build/main/main.js
         "#]],
     );
 }
diff --git a/crates/moon/tests/test_cases/targets/mod.rs b/crates/moon/tests/test_cases/targets/mod.rs
index 1d7653cdd..d57d61d0d 100644
--- a/crates/moon/tests/test_cases/targets/mod.rs
+++ b/crates/moon/tests/test_cases/targets/mod.rs
@@ -34,14 +34,14 @@ fn test_many_targets() {
             ],
         ),
         expect![[r#"
-            moonc check ./link/hello.mbt -o ./target/wasm/release/check/link/link.mi -pkg username/hello/link -pkg-sources username/hello/link:./link -target wasm -workspace-path .
-            moonc check -doctest-only ./link/hello.mbt -include-doctests -o ./target/wasm/release/check/link/link.blackbox_test.mi -pkg username/hello/link_blackbox_test -i ./target/wasm/release/check/link/link.mi:link -pkg-sources username/hello/link_blackbox_test:./link -target wasm -blackbox-test -workspace-path .
-            moonc check ./lib/hello.mbt -o ./target/wasm/release/check/lib/lib.mi -pkg username/hello/lib -pkg-sources username/hello/lib:./lib -target wasm -workspace-path .
-            moonc check -doctest-only ./lib/hello.mbt -include-doctests -o ./target/wasm/release/check/lib/lib.blackbox_test.mi -pkg username/hello/lib_blackbox_test -i ./target/wasm/release/check/lib/lib.mi:lib -pkg-sources username/hello/lib_blackbox_test:./lib -target wasm -blackbox-test -workspace-path .
-            moonc check ./link/hello.mbt -o ./target/js/release/check/link/link.mi -pkg username/hello/link -pkg-sources username/hello/link:./link -target js -workspace-path .
-            moonc check -doctest-only ./link/hello.mbt -include-doctests -o ./target/js/release/check/link/link.blackbox_test.mi -pkg username/hello/link_blackbox_test -i ./target/js/release/check/link/link.mi:link -pkg-sources username/hello/link_blackbox_test:./link -target js -blackbox-test -workspace-path .
-            moonc check ./lib/hello.mbt -o ./target/js/release/check/lib/lib.mi -pkg username/hello/lib -pkg-sources username/hello/lib:./lib -target js -workspace-path .
-            moonc check -doctest-only ./lib/hello.mbt -include-doctests -o ./target/js/release/check/lib/lib.blackbox_test.mi -pkg username/hello/lib_blackbox_test -i ./target/js/release/check/lib/lib.mi:lib -pkg-sources username/hello/lib_blackbox_test:./lib -target js -blackbox-test -workspace-path .
+            moonc check ./link/hello.mbt -o ./target/wasm/debug/check/link/link.mi -pkg username/hello/link -pkg-sources username/hello/link:./link -target wasm -workspace-path .
+            moonc check -doctest-only ./link/hello.mbt -include-doctests -o ./target/wasm/debug/check/link/link.blackbox_test.mi -pkg username/hello/link_blackbox_test -i ./target/wasm/debug/check/link/link.mi:link -pkg-sources username/hello/link_blackbox_test:./link -target wasm -blackbox-test -workspace-path .
+            moonc check ./lib/hello.mbt -o ./target/wasm/debug/check/lib/lib.mi -pkg username/hello/lib -pkg-sources username/hello/lib:./lib -target wasm -workspace-path .
+            moonc check -doctest-only ./lib/hello.mbt -include-doctests -o ./target/wasm/debug/check/lib/lib.blackbox_test.mi -pkg username/hello/lib_blackbox_test -i ./target/wasm/debug/check/lib/lib.mi:lib -pkg-sources username/hello/lib_blackbox_test:./lib -target wasm -blackbox-test -workspace-path .
+            moonc check ./link/hello.mbt -o ./target/js/debug/check/link/link.mi -pkg username/hello/link -pkg-sources username/hello/link:./link -target js -workspace-path .
+            moonc check -doctest-only ./link/hello.mbt -include-doctests -o ./target/js/debug/check/link/link.blackbox_test.mi -pkg username/hello/link_blackbox_test -i ./target/js/debug/check/link/link.mi:link -pkg-sources username/hello/link_blackbox_test:./link -target js -blackbox-test -workspace-path .
+            moonc check ./lib/hello.mbt -o ./target/js/debug/check/lib/lib.mi -pkg username/hello/lib -pkg-sources username/hello/lib:./lib -target js -workspace-path .
+            moonc check -doctest-only ./lib/hello.mbt -include-doctests -o ./target/js/debug/check/lib/lib.blackbox_test.mi -pkg username/hello/lib_blackbox_test -i ./target/js/debug/check/lib/lib.mi:lib -pkg-sources username/hello/lib_blackbox_test:./lib -target js -blackbox-test -workspace-path .
         "#]],
     );
 
@@ -59,10 +59,10 @@ fn test_many_targets() {
             ],
         ),
         expect![[r#"
-            moonc build-package ./link/hello.mbt -o ./target/wasm/release/build/link/link.core -pkg username/hello/link -pkg-sources username/hello/link:./link -target wasm -workspace-path .
-            moonc link-core ./target/wasm/release/build/link/link.core -main username/hello/link -o ./target/wasm/release/build/link/link.wasm -pkg-config-path ./link/moon.pkg.json -pkg-sources username/hello/link:./link -target wasm
-            moonc build-package ./link/hello.mbt -o ./target/js/release/build/link/link.core -pkg username/hello/link -pkg-sources username/hello/link:./link -target js -workspace-path .
-            moonc link-core ./target/js/release/build/link/link.core -main username/hello/link -o ./target/js/release/build/link/link.js -pkg-config-path ./link/moon.pkg.json -pkg-sources username/hello/link:./link -target js
+            moonc build-package ./link/hello.mbt -o ./target/wasm/debug/build/link/link.core -pkg username/hello/link -pkg-sources username/hello/link:./link -target wasm -g -O0 -workspace-path .
+            moonc link-core ./target/wasm/debug/build/link/link.core -main username/hello/link -o ./target/wasm/debug/build/link/link.wasm -pkg-config-path ./link/moon.pkg.json -pkg-sources username/hello/link:./link -target wasm -g -O0
+            moonc build-package ./link/hello.mbt -o ./target/js/debug/build/link/link.core -pkg username/hello/link -pkg-sources username/hello/link:./link -target js -g -O0 -source-map -workspace-path .
+            moonc link-core ./target/js/debug/build/link/link.core -main username/hello/link -o ./target/js/debug/build/link/link.js -pkg-config-path ./link/moon.pkg.json -pkg-sources username/hello/link:./link -target js -g -O0 -source-map
         "#]],
     );
 
@@ -80,11 +80,11 @@ fn test_many_targets() {
             ],
         ),
         expect![[r#"
-            moonc build-package ./link/hello.mbt -o ./target/wasm/release/bundle/link/link.core -pkg username/hello/link -pkg-sources username/hello/link:./link -target wasm
-            moonc build-package ./lib/hello.mbt -o ./target/wasm/release/bundle/lib/lib.core -pkg username/hello/lib -pkg-sources username/hello/lib:./lib -target wasm
+            moonc build-package ./link/hello.mbt -o ./target/wasm/release/bundle/link/link.core -pkg username/hello/link -pkg-sources username/hello/link:./link -target wasm -g
+            moonc build-package ./lib/hello.mbt -o ./target/wasm/release/bundle/lib/lib.core -pkg username/hello/lib -pkg-sources username/hello/lib:./lib -target wasm -g
             moonc bundle-core ./target/wasm/release/bundle/lib/lib.core ./target/wasm/release/bundle/link/link.core -o ./target/wasm/release/bundle/hello.core
-            moonc build-package ./link/hello.mbt -o ./target/js/release/bundle/link/link.core -pkg username/hello/link -pkg-sources username/hello/link:./link -target js
-            moonc build-package ./lib/hello.mbt -o ./target/js/release/bundle/lib/lib.core -pkg username/hello/lib -pkg-sources username/hello/lib:./lib -target js
+            moonc build-package ./link/hello.mbt -o ./target/js/release/bundle/link/link.core -pkg username/hello/link -pkg-sources username/hello/link:./link -target js -g -source-map
+            moonc build-package ./lib/hello.mbt -o ./target/js/release/bundle/lib/lib.core -pkg username/hello/lib -pkg-sources username/hello/lib:./lib -target js -g -source-map
             moonc bundle-core ./target/js/release/bundle/lib/lib.core ./target/js/release/bundle/link/link.core -o ./target/js/release/bundle/hello.core
         "#]],
     );
diff --git a/crates/moon/tests/test_cases/test_dot_source.in/moon.test b/crates/moon/tests/test_cases/test_dot_source.in/moon.test
index 242114b41..9da234508 100644
--- a/crates/moon/tests/test_cases/test_dot_source.in/moon.test
+++ b/crates/moon/tests/test_cases/test_dot_source.in/moon.test
@@ -1,6 +1,6 @@
   $ moon check --dry-run --sort-input
-  moonc check ./lib/hello.mbt -o ./target/wasm-gc/release/check/lib/lib.mi -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./lib -target wasm-gc -workspace-path .
-  moonc check ./main/main.mbt -o ./target/wasm-gc/release/check/main/main.mi -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm-gc -workspace-path .
-  moonc check -doctest-only ./main/main.mbt -include-doctests -o ./target/wasm-gc/release/check/main/main.blackbox_test.mi -pkg username/hello/main_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/main/main.mi:main -i ./target/wasm-gc/release/check/lib/lib.mi:lib -pkg-sources username/hello/main_blackbox_test:./main -target wasm-gc -blackbox-test -workspace-path .
-  moonc check ./lib/hello_test.mbt -doctest-only ./lib/hello.mbt -include-doctests -o ./target/wasm-gc/release/check/lib/lib.blackbox_test.mi -pkg username/hello/lib_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib/lib.mi:lib -pkg-sources username/hello/lib_blackbox_test:./lib -target wasm-gc -blackbox-test -workspace-path .
+  moonc check ./lib/hello.mbt -o ./target/wasm-gc/debug/check/lib/lib.mi -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./lib -target wasm-gc -workspace-path .
+  moonc check ./main/main.mbt -o ./target/wasm-gc/debug/check/main/main.mi -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm-gc -workspace-path .
+  moonc check -doctest-only ./main/main.mbt -include-doctests -o ./target/wasm-gc/debug/check/main/main.blackbox_test.mi -pkg username/hello/main_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/main/main.mi:main -i ./target/wasm-gc/debug/check/lib/lib.mi:lib -pkg-sources username/hello/main_blackbox_test:./main -target wasm-gc -blackbox-test -workspace-path .
+  moonc check ./lib/hello_test.mbt -doctest-only ./lib/hello.mbt -include-doctests -o ./target/wasm-gc/debug/check/lib/lib.blackbox_test.mi -pkg username/hello/lib_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib/lib.mi:lib -pkg-sources username/hello/lib_blackbox_test:./lib -target wasm-gc -blackbox-test -workspace-path .
   
diff --git a/crates/moon/tests/test_cases/virtual_pkg_dep/mod.rs b/crates/moon/tests/test_cases/virtual_pkg_dep/mod.rs
index a4aff5829..892370ef4 100644
--- a/crates/moon/tests/test_cases/virtual_pkg_dep/mod.rs
+++ b/crates/moon/tests/test_cases/virtual_pkg_dep/mod.rs
@@ -11,12 +11,12 @@ fn test_indirect_depend_virtual() {
             .collect::<Vec<_>>()
             .join("\n"),
         expect![[r#"
-            moonc build-interface ./src/virtual/pkg.mbti -o ./target/native/release/build/virtual/virtual.mi -pkg indirect_depend_virtual/virtual -pkg-sources indirect_depend_virtual/virtual:./src/virtual -virtual -std-path $MOON_HOME/lib/core/target/native/release/bundle -error-format=json
-            moonc build-package ./src/middle/p.mbt -o ./target/native/release/build/middle/middle.core -pkg indirect_depend_virtual/middle -std-path $MOON_HOME/lib/core/target/native/release/bundle -i ./target/native/release/build/virtual/virtual.mi:virtual -pkg-sources indirect_depend_virtual/middle:./src/middle -target native -workspace-path .
-            moonc build-package ./src/main/main.mbt -o ./target/native/release/build/main/main.core -pkg indirect_depend_virtual/main -is-main -std-path $MOON_HOME/lib/core/target/native/release/bundle -i ./target/native/release/build/middle/middle.mi:middle -i ./target/native/release/build/virtual/virtual.mi:virtual -pkg-sources indirect_depend_virtual/main:./src/main -target native -workspace-path .
-            moonc build-package ./src/impl/p.mbt -o ./target/native/release/build/impl/impl.core -pkg indirect_depend_virtual/impl -std-path $MOON_HOME/lib/core/target/native/release/bundle -pkg-sources indirect_depend_virtual/impl:./src/impl -target native -check-mi ./target/native/release/build/virtual/virtual.mi -impl-virtual -no-mi -pkg-sources indirect_depend_virtual/virtual:./src/virtual -workspace-path .
-            moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/release/build/impl/impl.core ./target/native/release/build/middle/middle.core ./target/native/release/build/main/main.core -main indirect_depend_virtual/main -o ./target/native/release/build/main/main.c -pkg-config-path ./src/main/moon.pkg.json -pkg-sources indirect_depend_virtual/impl:./src/impl -pkg-sources indirect_depend_virtual/middle:./src/middle -pkg-sources indirect_depend_virtual/main:./src/main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target native
-            ./target/native/release/build/main/main.exe"#]],
+            moonc build-interface ./src/virtual/pkg.mbti -o ./target/native/debug/build/virtual/virtual.mi -pkg indirect_depend_virtual/virtual -pkg-sources indirect_depend_virtual/virtual:./src/virtual -virtual -std-path $MOON_HOME/lib/core/target/native/release/bundle -error-format=json
+            moonc build-package ./src/middle/p.mbt -o ./target/native/debug/build/middle/middle.core -pkg indirect_depend_virtual/middle -std-path $MOON_HOME/lib/core/target/native/release/bundle -i ./target/native/debug/build/virtual/virtual.mi:virtual -pkg-sources indirect_depend_virtual/middle:./src/middle -target native -g -O0 -workspace-path .
+            moonc build-package ./src/main/main.mbt -o ./target/native/debug/build/main/main.core -pkg indirect_depend_virtual/main -is-main -std-path $MOON_HOME/lib/core/target/native/release/bundle -i ./target/native/debug/build/middle/middle.mi:middle -i ./target/native/debug/build/virtual/virtual.mi:virtual -pkg-sources indirect_depend_virtual/main:./src/main -target native -g -O0 -workspace-path .
+            moonc build-package ./src/impl/p.mbt -o ./target/native/debug/build/impl/impl.core -pkg indirect_depend_virtual/impl -std-path $MOON_HOME/lib/core/target/native/release/bundle -pkg-sources indirect_depend_virtual/impl:./src/impl -target native -g -O0 -check-mi ./target/native/debug/build/virtual/virtual.mi -impl-virtual -no-mi -pkg-sources indirect_depend_virtual/virtual:./src/virtual -workspace-path .
+            moonc link-core $MOON_HOME/lib/core/target/native/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/native/release/bundle/core.core ./target/native/debug/build/impl/impl.core ./target/native/debug/build/middle/middle.core ./target/native/debug/build/main/main.core -main indirect_depend_virtual/main -o ./target/native/debug/build/main/main.c -pkg-config-path ./src/main/moon.pkg.json -pkg-sources indirect_depend_virtual/impl:./src/impl -pkg-sources indirect_depend_virtual/middle:./src/middle -pkg-sources indirect_depend_virtual/main:./src/main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target native -g -O0
+            ./target/native/debug/build/main/main.exe"#]],
     );
     check(
         get_stdout(&dir, ["run", "src/main", "--target", "native"]),
diff --git a/crates/moon/tests/test_cases/warns/mod.rs b/crates/moon/tests/test_cases/warns/mod.rs
index 6ebfb223d..a2be56d66 100644
--- a/crates/moon/tests/test_cases/warns/mod.rs
+++ b/crates/moon/tests/test_cases/warns/mod.rs
@@ -7,10 +7,10 @@ fn test_warn_list_dry_run() {
     check(
         get_stdout(&dir, ["build", "--sort-input", "--no-render", "--dry-run"]),
         expect![[r#"
-            moonc build-package ./lib1/hello.mbt -w -1 -o ./target/wasm-gc/release/build/lib1/lib1.core -pkg username/hello/lib1 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib1:./lib1 -target wasm-gc -workspace-path .
-            moonc build-package ./lib/hello.mbt -w -2 -o ./target/wasm-gc/release/build/lib/lib.core -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./lib -target wasm-gc -workspace-path .
-            moonc build-package ./main/main.mbt -w -1-2 -o ./target/wasm-gc/release/build/main/main.core -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/build/lib/lib.mi:lib -i ./target/wasm-gc/release/build/lib1/lib1.mi:lib1 -pkg-sources username/hello/main:./main -target wasm-gc -workspace-path .
-            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/release/build/lib/lib.core ./target/wasm-gc/release/build/lib1/lib1.core ./target/wasm-gc/release/build/main/main.core -main username/hello/main -o ./target/wasm-gc/release/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/lib1:./lib1 -pkg-sources username/hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc
+            moonc build-package ./lib1/hello.mbt -w -1 -o ./target/wasm-gc/debug/build/lib1/lib1.core -pkg username/hello/lib1 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib1:./lib1 -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./lib/hello.mbt -w -2 -o ./target/wasm-gc/debug/build/lib/lib.core -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./lib -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./main/main.mbt -w -1-2 -o ./target/wasm-gc/debug/build/main/main.core -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/build/lib/lib.mi:lib -i ./target/wasm-gc/debug/build/lib1/lib1.mi:lib1 -pkg-sources username/hello/main:./main -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/debug/build/lib/lib.core ./target/wasm-gc/debug/build/lib1/lib1.core ./target/wasm-gc/debug/build/main/main.core -main username/hello/main -o ./target/wasm-gc/debug/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/lib1:./lib1 -pkg-sources username/hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc -g -O0 -source-map
         "#]],
     );
     check(
@@ -26,10 +26,10 @@ fn test_warn_list_dry_run() {
             ],
         ),
         expect![[r#"
-            moonc build-package ./lib1/hello.mbt -w -1-29 -o ./target/wasm-gc/release/build/lib1/lib1.core -pkg username/hello/lib1 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib1:./lib1 -target wasm-gc -workspace-path .
-            moonc build-package ./lib/hello.mbt -w -2-29 -o ./target/wasm-gc/release/build/lib/lib.core -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./lib -target wasm-gc -workspace-path .
-            moonc build-package ./main/main.mbt -w -1-2-29 -o ./target/wasm-gc/release/build/main/main.core -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/build/lib/lib.mi:lib -i ./target/wasm-gc/release/build/lib1/lib1.mi:lib1 -pkg-sources username/hello/main:./main -target wasm-gc -workspace-path .
-            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/release/build/lib/lib.core ./target/wasm-gc/release/build/lib1/lib1.core ./target/wasm-gc/release/build/main/main.core -main username/hello/main -o ./target/wasm-gc/release/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/lib1:./lib1 -pkg-sources username/hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc
+            moonc build-package ./lib1/hello.mbt -w -1-29 -o ./target/wasm-gc/debug/build/lib1/lib1.core -pkg username/hello/lib1 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib1:./lib1 -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./lib/hello.mbt -w -2-29 -o ./target/wasm-gc/debug/build/lib/lib.core -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./lib -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc build-package ./main/main.mbt -w -1-2-29 -o ./target/wasm-gc/debug/build/main/main.core -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/build/lib/lib.mi:lib -i ./target/wasm-gc/debug/build/lib1/lib1.mi:lib1 -pkg-sources username/hello/main:./main -target wasm-gc -g -O0 -source-map -workspace-path .
+            moonc link-core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/abort/abort.core $MOON_HOME/lib/core/target/wasm-gc/release/bundle/core.core ./target/wasm-gc/debug/build/lib/lib.core ./target/wasm-gc/debug/build/lib1/lib1.core ./target/wasm-gc/debug/build/main/main.core -main username/hello/main -o ./target/wasm-gc/debug/build/main/main.wasm -pkg-config-path ./main/moon.pkg.json -pkg-sources username/hello/lib:./lib -pkg-sources username/hello/lib1:./lib1 -pkg-sources username/hello/main:./main -pkg-sources moonbitlang/core:$MOON_HOME/lib/core -target wasm-gc -g -O0 -source-map
         "#]],
     );
 
@@ -43,9 +43,9 @@ fn test_warn_list_dry_run() {
     check(
         get_stdout(&dir, ["bundle", "--sort-input", "--no-render", "--dry-run"]),
         expect![[r#"
-            moonc build-package ./lib1/hello.mbt -w -1 -o ./target/wasm-gc/release/bundle/lib1/lib1.core -pkg username/hello/lib1 -pkg-sources username/hello/lib1:./lib1 -target wasm-gc
-            moonc build-package ./lib/hello.mbt -w -2 -o ./target/wasm-gc/release/bundle/lib/lib.core -pkg username/hello/lib -pkg-sources username/hello/lib:./lib -target wasm-gc
-            moonc build-package ./main/main.mbt -w -1-2 -o ./target/wasm-gc/release/bundle/main/main.core -pkg username/hello/main -is-main -i ./target/wasm-gc/release/bundle/lib/lib.mi:lib -i ./target/wasm-gc/release/bundle/lib1/lib1.mi:lib1 -pkg-sources username/hello/main:./main -target wasm-gc
+            moonc build-package ./lib1/hello.mbt -w -1 -o ./target/wasm-gc/release/bundle/lib1/lib1.core -pkg username/hello/lib1 -pkg-sources username/hello/lib1:./lib1 -target wasm-gc -g -source-map
+            moonc build-package ./lib/hello.mbt -w -2 -o ./target/wasm-gc/release/bundle/lib/lib.core -pkg username/hello/lib -pkg-sources username/hello/lib:./lib -target wasm-gc -g -source-map
+            moonc build-package ./main/main.mbt -w -1-2 -o ./target/wasm-gc/release/bundle/main/main.core -pkg username/hello/main -is-main -i ./target/wasm-gc/release/bundle/lib/lib.mi:lib -i ./target/wasm-gc/release/bundle/lib1/lib1.mi:lib1 -pkg-sources username/hello/main:./main -target wasm-gc -g -source-map
             moonc bundle-core ./target/wasm-gc/release/bundle/lib/lib.core ./target/wasm-gc/release/bundle/lib1/lib1.core ./target/wasm-gc/release/bundle/main/main.core -o ./target/wasm-gc/release/bundle/hello.core
         "#]],
     );
@@ -56,12 +56,12 @@ fn test_warn_list_dry_run() {
     check(
         get_stdout(&dir, ["check", "--sort-input", "--no-render", "--dry-run"]),
         expect![[r#"
-            moonc check ./lib1/hello.mbt -w -1 -o ./target/wasm-gc/release/check/lib1/lib1.mi -pkg username/hello/lib1 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib1:./lib1 -target wasm-gc -workspace-path .
-            moonc check ./lib/hello.mbt -w -2 -o ./target/wasm-gc/release/check/lib/lib.mi -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./lib -target wasm-gc -workspace-path .
-            moonc check ./main/main.mbt -w -1-2 -o ./target/wasm-gc/release/check/main/main.mi -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib/lib.mi:lib -i ./target/wasm-gc/release/check/lib1/lib1.mi:lib1 -pkg-sources username/hello/main:./main -target wasm-gc -workspace-path .
-            moonc check -doctest-only ./main/main.mbt -include-doctests -w -1-2 -o ./target/wasm-gc/release/check/main/main.blackbox_test.mi -pkg username/hello/main_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/main/main.mi:main -i ./target/wasm-gc/release/check/lib/lib.mi:lib -i ./target/wasm-gc/release/check/lib1/lib1.mi:lib1 -pkg-sources username/hello/main_blackbox_test:./main -target wasm-gc -blackbox-test -workspace-path .
-            moonc check -doctest-only ./lib1/hello.mbt -include-doctests -w -1 -o ./target/wasm-gc/release/check/lib1/lib1.blackbox_test.mi -pkg username/hello/lib1_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib1/lib1.mi:lib1 -pkg-sources username/hello/lib1_blackbox_test:./lib1 -target wasm-gc -blackbox-test -workspace-path .
-            moonc check ./lib/hello_test.mbt -doctest-only ./lib/hello.mbt -include-doctests -w -2 -o ./target/wasm-gc/release/check/lib/lib.blackbox_test.mi -pkg username/hello/lib_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib/lib.mi:lib -pkg-sources username/hello/lib_blackbox_test:./lib -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./lib1/hello.mbt -w -1 -o ./target/wasm-gc/debug/check/lib1/lib1.mi -pkg username/hello/lib1 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib1:./lib1 -target wasm-gc -workspace-path .
+            moonc check ./lib/hello.mbt -w -2 -o ./target/wasm-gc/debug/check/lib/lib.mi -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./lib -target wasm-gc -workspace-path .
+            moonc check ./main/main.mbt -w -1-2 -o ./target/wasm-gc/debug/check/main/main.mi -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib/lib.mi:lib -i ./target/wasm-gc/debug/check/lib1/lib1.mi:lib1 -pkg-sources username/hello/main:./main -target wasm-gc -workspace-path .
+            moonc check -doctest-only ./main/main.mbt -include-doctests -w -1-2 -o ./target/wasm-gc/debug/check/main/main.blackbox_test.mi -pkg username/hello/main_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/main/main.mi:main -i ./target/wasm-gc/debug/check/lib/lib.mi:lib -i ./target/wasm-gc/debug/check/lib1/lib1.mi:lib1 -pkg-sources username/hello/main_blackbox_test:./main -target wasm-gc -blackbox-test -workspace-path .
+            moonc check -doctest-only ./lib1/hello.mbt -include-doctests -w -1 -o ./target/wasm-gc/debug/check/lib1/lib1.blackbox_test.mi -pkg username/hello/lib1_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib1/lib1.mi:lib1 -pkg-sources username/hello/lib1_blackbox_test:./lib1 -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./lib/hello_test.mbt -doctest-only ./lib/hello.mbt -include-doctests -w -2 -o ./target/wasm-gc/debug/check/lib/lib.blackbox_test.mi -pkg username/hello/lib_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib/lib.mi:lib -pkg-sources username/hello/lib_blackbox_test:./lib -target wasm-gc -blackbox-test -workspace-path .
         "#]],
     );
     check(
@@ -77,12 +77,12 @@ fn test_warn_list_dry_run() {
             ],
         ),
         expect![[r#"
-            moonc check ./lib1/hello.mbt -w -1-29 -o ./target/wasm-gc/release/check/lib1/lib1.mi -pkg username/hello/lib1 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib1:./lib1 -target wasm-gc -workspace-path .
-            moonc check ./lib/hello.mbt -w -2-29 -o ./target/wasm-gc/release/check/lib/lib.mi -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./lib -target wasm-gc -workspace-path .
-            moonc check ./main/main.mbt -w -1-2-29 -o ./target/wasm-gc/release/check/main/main.mi -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib/lib.mi:lib -i ./target/wasm-gc/release/check/lib1/lib1.mi:lib1 -pkg-sources username/hello/main:./main -target wasm-gc -workspace-path .
-            moonc check -doctest-only ./main/main.mbt -include-doctests -w -1-2-29 -o ./target/wasm-gc/release/check/main/main.blackbox_test.mi -pkg username/hello/main_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/main/main.mi:main -i ./target/wasm-gc/release/check/lib/lib.mi:lib -i ./target/wasm-gc/release/check/lib1/lib1.mi:lib1 -pkg-sources username/hello/main_blackbox_test:./main -target wasm-gc -blackbox-test -workspace-path .
-            moonc check -doctest-only ./lib1/hello.mbt -include-doctests -w -1-29 -o ./target/wasm-gc/release/check/lib1/lib1.blackbox_test.mi -pkg username/hello/lib1_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib1/lib1.mi:lib1 -pkg-sources username/hello/lib1_blackbox_test:./lib1 -target wasm-gc -blackbox-test -workspace-path .
-            moonc check ./lib/hello_test.mbt -doctest-only ./lib/hello.mbt -include-doctests -w -2-29 -o ./target/wasm-gc/release/check/lib/lib.blackbox_test.mi -pkg username/hello/lib_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib/lib.mi:lib -pkg-sources username/hello/lib_blackbox_test:./lib -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./lib1/hello.mbt -w -1-29 -o ./target/wasm-gc/debug/check/lib1/lib1.mi -pkg username/hello/lib1 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib1:./lib1 -target wasm-gc -workspace-path .
+            moonc check ./lib/hello.mbt -w -2-29 -o ./target/wasm-gc/debug/check/lib/lib.mi -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./lib -target wasm-gc -workspace-path .
+            moonc check ./main/main.mbt -w -1-2-29 -o ./target/wasm-gc/debug/check/main/main.mi -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib/lib.mi:lib -i ./target/wasm-gc/debug/check/lib1/lib1.mi:lib1 -pkg-sources username/hello/main:./main -target wasm-gc -workspace-path .
+            moonc check -doctest-only ./main/main.mbt -include-doctests -w -1-2-29 -o ./target/wasm-gc/debug/check/main/main.blackbox_test.mi -pkg username/hello/main_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/main/main.mi:main -i ./target/wasm-gc/debug/check/lib/lib.mi:lib -i ./target/wasm-gc/debug/check/lib1/lib1.mi:lib1 -pkg-sources username/hello/main_blackbox_test:./main -target wasm-gc -blackbox-test -workspace-path .
+            moonc check -doctest-only ./lib1/hello.mbt -include-doctests -w -1-29 -o ./target/wasm-gc/debug/check/lib1/lib1.blackbox_test.mi -pkg username/hello/lib1_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib1/lib1.mi:lib1 -pkg-sources username/hello/lib1_blackbox_test:./lib1 -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./lib/hello_test.mbt -doctest-only ./lib/hello.mbt -include-doctests -w -2-29 -o ./target/wasm-gc/debug/check/lib/lib.blackbox_test.mi -pkg username/hello/lib_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib/lib.mi:lib -pkg-sources username/hello/lib_blackbox_test:./lib -target wasm-gc -blackbox-test -workspace-path .
         "#]],
     );
 }
@@ -142,12 +142,12 @@ fn test_alert_list() {
     check(
         get_stdout(&dir, ["check", "--sort-input", "--dry-run"]),
         expect![[r#"
-            moonc check ./lib/hello.mbt -w -2 -alert -alert_1-alert_2 -o ./target/wasm-gc/release/check/lib/lib.mi -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./lib -target wasm-gc -workspace-path .
-            moonc check ./main/main.mbt -w -1-2 -alert -alert_1 -o ./target/wasm-gc/release/check/main/main.mi -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm-gc -workspace-path .
-            moonc check -doctest-only ./main/main.mbt -include-doctests -w -1-2 -alert -alert_1 -o ./target/wasm-gc/release/check/main/main.blackbox_test.mi -pkg username/hello/main_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/main/main.mi:main -i ./target/wasm-gc/release/check/lib/lib.mi:lib -pkg-sources username/hello/main_blackbox_test:./main -target wasm-gc -blackbox-test -workspace-path .
-            moonc check ./lib2/hello.mbt -o ./target/wasm-gc/release/check/lib2/lib2.mi -pkg username/hello/lib2 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib2:./lib2 -target wasm-gc -workspace-path .
-            moonc check -doctest-only ./lib2/hello.mbt -include-doctests -o ./target/wasm-gc/release/check/lib2/lib2.blackbox_test.mi -pkg username/hello/lib2_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib2/lib2.mi:lib2 -pkg-sources username/hello/lib2_blackbox_test:./lib2 -target wasm-gc -blackbox-test -workspace-path .
-            moonc check -doctest-only ./lib/hello.mbt -include-doctests -w -2 -alert -alert_1-alert_2 -o ./target/wasm-gc/release/check/lib/lib.blackbox_test.mi -pkg username/hello/lib_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib/lib.mi:lib -pkg-sources username/hello/lib_blackbox_test:./lib -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./lib/hello.mbt -w -2 -alert -alert_1-alert_2 -o ./target/wasm-gc/debug/check/lib/lib.mi -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./lib -target wasm-gc -workspace-path .
+            moonc check ./main/main.mbt -w -1-2 -alert -alert_1 -o ./target/wasm-gc/debug/check/main/main.mi -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm-gc -workspace-path .
+            moonc check -doctest-only ./main/main.mbt -include-doctests -w -1-2 -alert -alert_1 -o ./target/wasm-gc/debug/check/main/main.blackbox_test.mi -pkg username/hello/main_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/main/main.mi:main -i ./target/wasm-gc/debug/check/lib/lib.mi:lib -pkg-sources username/hello/main_blackbox_test:./main -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./lib2/hello.mbt -o ./target/wasm-gc/debug/check/lib2/lib2.mi -pkg username/hello/lib2 -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib2:./lib2 -target wasm-gc -workspace-path .
+            moonc check -doctest-only ./lib2/hello.mbt -include-doctests -o ./target/wasm-gc/debug/check/lib2/lib2.blackbox_test.mi -pkg username/hello/lib2_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib2/lib2.mi:lib2 -pkg-sources username/hello/lib2_blackbox_test:./lib2 -target wasm-gc -blackbox-test -workspace-path .
+            moonc check -doctest-only ./lib/hello.mbt -include-doctests -w -2 -alert -alert_1-alert_2 -o ./target/wasm-gc/debug/check/lib/lib.blackbox_test.mi -pkg username/hello/lib_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib/lib.mi:lib -pkg-sources username/hello/lib_blackbox_test:./lib -target wasm-gc -blackbox-test -workspace-path .
         "#]],
     );
 
@@ -187,10 +187,10 @@ fn test_mod_level_warn_alert_list() {
     check(
         get_stdout(&dir, ["check", "--dry-run"]),
         expect![[r#"
-            moonc check ./lib/hello.mbt -w -1 -alert -alert_1 -o ./target/wasm-gc/release/check/lib/lib.mi -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./lib -target wasm-gc -workspace-path .
-            moonc check ./main/main.mbt -w -1-2 -alert -alert_1-alert_2 -o ./target/wasm-gc/release/check/main/main.mi -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm-gc -workspace-path .
-            moonc check -doctest-only ./main/main.mbt -include-doctests -w -1-2 -alert -alert_1-alert_2 -o ./target/wasm-gc/release/check/main/main.blackbox_test.mi -pkg username/hello/main_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/main/main.mi:main -i ./target/wasm-gc/release/check/lib/lib.mi:lib -pkg-sources username/hello/main_blackbox_test:./main -target wasm-gc -blackbox-test -workspace-path .
-            moonc check -doctest-only ./lib/hello.mbt -include-doctests -w -1 -alert -alert_1 -o ./target/wasm-gc/release/check/lib/lib.blackbox_test.mi -pkg username/hello/lib_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/release/check/lib/lib.mi:lib -pkg-sources username/hello/lib_blackbox_test:./lib -target wasm-gc -blackbox-test -workspace-path .
+            moonc check ./lib/hello.mbt -w -1 -alert -alert_1 -o ./target/wasm-gc/debug/check/lib/lib.mi -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:./lib -target wasm-gc -workspace-path .
+            moonc check ./main/main.mbt -w -1-2 -alert -alert_1-alert_2 -o ./target/wasm-gc/debug/check/main/main.mi -pkg username/hello/main -is-main -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib/lib.mi:lib -pkg-sources username/hello/main:./main -target wasm-gc -workspace-path .
+            moonc check -doctest-only ./main/main.mbt -include-doctests -w -1-2 -alert -alert_1-alert_2 -o ./target/wasm-gc/debug/check/main/main.blackbox_test.mi -pkg username/hello/main_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/main/main.mi:main -i ./target/wasm-gc/debug/check/lib/lib.mi:lib -pkg-sources username/hello/main_blackbox_test:./main -target wasm-gc -blackbox-test -workspace-path .
+            moonc check -doctest-only ./lib/hello.mbt -include-doctests -w -1 -alert -alert_1 -o ./target/wasm-gc/debug/check/lib/lib.blackbox_test.mi -pkg username/hello/lib_blackbox_test -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -i ./target/wasm-gc/debug/check/lib/lib.mi:lib -pkg-sources username/hello/lib_blackbox_test:./lib -target wasm-gc -blackbox-test -workspace-path .
         "#]],
     );
 }
@@ -239,7 +239,7 @@ fn test_deny_warn() {
     check(
         get_err_stdout(&dir, ["check", "--deny-warn", "--sort-input"]),
         expect![[r#"
-            failed: moonc check -error-format json -w @a-31-32 -alert @all-raise-throw-unsafe-test_import_all+deprecated $ROOT/lib/hello.mbt -o $ROOT/target/wasm-gc/release/check/lib/lib.mi -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:$ROOT/lib -target wasm-gc -workspace-path $ROOT
+            failed: moonc check -error-format json -w @a-31-32 -alert @all-raise-throw-unsafe-test_import_all+deprecated $ROOT/lib/hello.mbt -o $ROOT/target/wasm-gc/debug/check/lib/lib.mi -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:$ROOT/lib -target wasm-gc -workspace-path $ROOT
         "#]],
     );
 
@@ -281,7 +281,7 @@ fn test_deny_warn() {
     check(
         get_err_stdout(&dir, ["build", "--deny-warn", "--sort-input"]),
         expect![[r#"
-            failed: moonc build-package -error-format json -w @a-31-32 -alert @all-raise-throw-unsafe-test_import_all+deprecated $ROOT/lib/hello.mbt -o $ROOT/target/wasm-gc/release/build/lib/lib.core -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:$ROOT/lib -target wasm-gc -workspace-path $ROOT
+            failed: moonc build-package -error-format json -w @a-31-32 -alert @all-raise-throw-unsafe-test_import_all+deprecated $ROOT/lib/hello.mbt -o $ROOT/target/wasm-gc/debug/build/lib/lib.core -pkg username/hello/lib -std-path $MOON_HOME/lib/core/target/wasm-gc/release/bundle -pkg-sources username/hello/lib:$ROOT/lib -target wasm-gc -g -O0 -source-map -workspace-path $ROOT
         "#]],
     );
 }
diff --git a/crates/moonrun/tests/test.rs b/crates/moonrun/tests/test.rs
index 0df4250d0..73ad47a33 100644
--- a/crates/moonrun/tests/test.rs
+++ b/crates/moonrun/tests/test.rs
@@ -99,7 +99,7 @@ fn test_moonrun_wasm_stack_trace() {
         .assert()
         .success();
 
-    let main_wasm = dir.join("target/wasm-gc/release/build/main/main.wasm");
+    let main_wasm = dir.join("target/wasm-gc/debug/build/main/main.wasm");
 
     let out = snapbox::cmd::Command::new(snapbox::cmd::cargo_bin("moonrun"))
         .arg(&main_wasm)
@@ -113,8 +113,8 @@ fn test_moonrun_wasm_stack_trace() {
         &s,
         expect![[r#"
             RuntimeError: unreachable
-                at wasm://wasm/6bf44e26:wasm-function[1]:0x87
-                at wasm://wasm/6bf44e26:wasm-function[2]:0x93
+                at moonbitlang/core/abort.abort|Unit| (wasm://wasm/2cf5837e:wasm-function[1]:0x87)
+                at *main*/1 (wasm://wasm/2cf5837e:wasm-function[2]:0x93)
         "#]],
     );
 
@@ -145,7 +145,7 @@ fn test_moon_run_with_cli_args() {
         .assert()
         .success();
 
-    let wasm_file = dir.join("target/wasm-gc/release/build/main/main.wasm");
+    let wasm_file = dir.join("target/wasm-gc/debug/build/main/main.wasm");
 
     // `argv` passed to CLI is:
     // <wasm_file> <...rest argv to moonrun>
@@ -206,7 +206,7 @@ fn test_moon_run_with_read_bytes_from_stdin() {
         .assert()
         .success();
 
-    let wasm_file = dir.join("target/wasm-gc/release/build/main/main.wasm");
+    let wasm_file = dir.join("target/wasm-gc/debug/build/main/main.wasm");
 
     let out = snapbox::cmd::Command::new(snapbox::cmd::cargo_bin("moonrun"))
         .arg(&wasm_file)
diff --git a/docs/manual-zh/src/commands.md b/docs/manual-zh/src/commands.md
index 846b4e058..29fab7a92 100644
--- a/docs/manual-zh/src/commands.md
+++ b/docs/manual-zh/src/commands.md
@@ -93,10 +93,12 @@ Build the current package
 
 * `--std` — Enable the standard library (default)
 * `--nostd` — Disable the standard library
-* `-g`, `--debug` — Emit debug information
+* `-g`, `--debug` — Compile in debug mode
 * `--release` — Compile in release mode
-* `--strip` — Enable stripping debug information
-* `--no-strip` — Disable stripping debug information
+* `--strip` — Do not emit debug information
+* `--no-strip` — Emit debug information (no effect)
+
+   This flag currently has no effect, as debug information is emitted by default unless `--strip` is specified.
 * `--target <TARGET>` — Select output target
 
   Possible values: `wasm`, `wasm-gc`, `js`, `native`, `llvm`, `all`
@@ -134,10 +136,12 @@ Check the current package, but don't build object files
 
 * `--std` — Enable the standard library (default)
 * `--nostd` — Disable the standard library
-* `-g`, `--debug` — Emit debug information
+* `-g`, `--debug` — Compile in debug mode
 * `--release` — Compile in release mode
-* `--strip` — Enable stripping debug information
-* `--no-strip` — Disable stripping debug information
+* `--strip` — Do not emit debug information
+* `--no-strip` — Emit debug information (no effect)
+
+   This flag currently has no effect, as debug information is emitted by default unless `--strip` is specified.
 * `--target <TARGET>` — Select output target
 
   Possible values: `wasm`, `wasm-gc`, `js`, `native`, `llvm`, `all`
@@ -181,10 +185,12 @@ Run a main package
 
 * `--std` — Enable the standard library (default)
 * `--nostd` — Disable the standard library
-* `-g`, `--debug` — Emit debug information
+* `-g`, `--debug` — Compile in debug mode
 * `--release` — Compile in release mode
-* `--strip` — Enable stripping debug information
-* `--no-strip` — Disable stripping debug information
+* `--strip` — Do not emit debug information
+* `--no-strip` — Emit debug information (no effect)
+
+   This flag currently has no effect, as debug information is emitted by default unless `--strip` is specified.
 * `--target <TARGET>` — Select output target
 
   Possible values: `wasm`, `wasm-gc`, `js`, `native`, `llvm`, `all`
@@ -222,10 +228,12 @@ Test the current package
 
 * `--std` — Enable the standard library (default)
 * `--nostd` — Disable the standard library
-* `-g`, `--debug` — Emit debug information
+* `-g`, `--debug` — Compile in debug mode
 * `--release` — Compile in release mode
-* `--strip` — Enable stripping debug information
-* `--no-strip` — Disable stripping debug information
+* `--strip` — Do not emit debug information
+* `--no-strip` — Emit debug information (no effect)
+
+   This flag currently has no effect, as debug information is emitted by default unless `--strip` is specified.
 * `--target <TARGET>` — Select output target
 
   Possible values: `wasm`, `wasm-gc`, `js`, `native`, `llvm`, `all`
@@ -336,10 +344,12 @@ Run benchmarks in the current package
 
 * `--std` — Enable the standard library (default)
 * `--nostd` — Disable the standard library
-* `-g`, `--debug` — Emit debug information
+* `-g`, `--debug` — Compile in debug mode
 * `--release` — Compile in release mode
-* `--strip` — Enable stripping debug information
-* `--no-strip` — Disable stripping debug information
+* `--strip` — Do not emit debug information
+* `--no-strip` — Emit debug information (no effect)
+
+   This flag currently has no effect, as debug information is emitted by default unless `--strip` is specified.
 * `--target <TARGET>` — Select output target
 
   Possible values: `wasm`, `wasm-gc`, `js`, `native`, `llvm`, `all`
diff --git a/docs/manual/src/commands.md b/docs/manual/src/commands.md
index 846b4e058..29fab7a92 100644
--- a/docs/manual/src/commands.md
+++ b/docs/manual/src/commands.md
@@ -93,10 +93,12 @@ Build the current package
 
 * `--std` — Enable the standard library (default)
 * `--nostd` — Disable the standard library
-* `-g`, `--debug` — Emit debug information
+* `-g`, `--debug` — Compile in debug mode
 * `--release` — Compile in release mode
-* `--strip` — Enable stripping debug information
-* `--no-strip` — Disable stripping debug information
+* `--strip` — Do not emit debug information
+* `--no-strip` — Emit debug information (no effect)
+
+   This flag currently has no effect, as debug information is emitted by default unless `--strip` is specified.
 * `--target <TARGET>` — Select output target
 
   Possible values: `wasm`, `wasm-gc`, `js`, `native`, `llvm`, `all`
@@ -134,10 +136,12 @@ Check the current package, but don't build object files
 
 * `--std` — Enable the standard library (default)
 * `--nostd` — Disable the standard library
-* `-g`, `--debug` — Emit debug information
+* `-g`, `--debug` — Compile in debug mode
 * `--release` — Compile in release mode
-* `--strip` — Enable stripping debug information
-* `--no-strip` — Disable stripping debug information
+* `--strip` — Do not emit debug information
+* `--no-strip` — Emit debug information (no effect)
+
+   This flag currently has no effect, as debug information is emitted by default unless `--strip` is specified.
 * `--target <TARGET>` — Select output target
 
   Possible values: `wasm`, `wasm-gc`, `js`, `native`, `llvm`, `all`
@@ -181,10 +185,12 @@ Run a main package
 
 * `--std` — Enable the standard library (default)
 * `--nostd` — Disable the standard library
-* `-g`, `--debug` — Emit debug information
+* `-g`, `--debug` — Compile in debug mode
 * `--release` — Compile in release mode
-* `--strip` — Enable stripping debug information
-* `--no-strip` — Disable stripping debug information
+* `--strip` — Do not emit debug information
+* `--no-strip` — Emit debug information (no effect)
+
+   This flag currently has no effect, as debug information is emitted by default unless `--strip` is specified.
 * `--target <TARGET>` — Select output target
 
   Possible values: `wasm`, `wasm-gc`, `js`, `native`, `llvm`, `all`
@@ -222,10 +228,12 @@ Test the current package
 
 * `--std` — Enable the standard library (default)
 * `--nostd` — Disable the standard library
-* `-g`, `--debug` — Emit debug information
+* `-g`, `--debug` — Compile in debug mode
 * `--release` — Compile in release mode
-* `--strip` — Enable stripping debug information
-* `--no-strip` — Disable stripping debug information
+* `--strip` — Do not emit debug information
+* `--no-strip` — Emit debug information (no effect)
+
+   This flag currently has no effect, as debug information is emitted by default unless `--strip` is specified.
 * `--target <TARGET>` — Select output target
 
   Possible values: `wasm`, `wasm-gc`, `js`, `native`, `llvm`, `all`
@@ -336,10 +344,12 @@ Run benchmarks in the current package
 
 * `--std` — Enable the standard library (default)
 * `--nostd` — Disable the standard library
-* `-g`, `--debug` — Emit debug information
+* `-g`, `--debug` — Compile in debug mode
 * `--release` — Compile in release mode
-* `--strip` — Enable stripping debug information
-* `--no-strip` — Disable stripping debug information
+* `--strip` — Do not emit debug information
+* `--no-strip` — Emit debug information (no effect)
+
+   This flag currently has no effect, as debug information is emitted by default unless `--strip` is specified.
 * `--target <TARGET>` — Select output target
 
   Possible values: `wasm`, `wasm-gc`, `js`, `native`, `llvm`, `all`