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Toolchain upgrade to nightly-2026-10-09 - #1811
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- `rustc_hir::attrs` re-exports were removed (rust-lang/rust 564f208ba9);
use the `rustc_attr_ir` crate directly for `LangItem`, `AttrArgs`,
`AttrItem`, `AttributeKind` and `Attribute`.
- `hir::MutTy` was removed; `TyKind::Ref`/`TyKind::Ptr` now carry the
type and mutability inline. Mirror this in fhir by removing
`fhir::MutTy` and making `fhir::TyKind::Ref` carry the type and
mutability directly.
- `ItemKind::Use` now holds a `UseTree`, and nested imports are no longer
lowered to separate `use` items. Walk the tree recursively in the
resolver, accumulating prefix segments so nested globs resolve. Since
nested paths are relative, rustc no longer strips a trailing `self` in
`use foo::{self}`; use the last segment of the enclosing prefix as the
defined name instead.
- Drop the now-stable `unwrap_infallible` feature gate.
- Add tests for deeply nested imports and nested `self` imports.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012gtPpddAzPz35KFV4dnZxz
`rustc_driver::run_compiler` was renamed to `compiler_entrypoint`. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_012gtPpddAzPz35KFV4dnZxz
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- `TerminatorKind::Goto` gained a `loop_hint_attrs` field; ignore it when lowering. - `BlobDecoder` gained a required `decode_local_def_id` method. Our encoder uses the default `encode_local_def_id`, which writes a full `DefId`, so decode it the same way rustc's on-disk cache does: read a `DefId` and `expect_local`. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_011bViu84sVjSqcUXB6S8fn3
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This is an automated PR to update the Rust toolchain to nightly-2026-10-09
Update failed when going from nightly-2026-10-08 to nightly-2026-10-09.
The failed automated run can be found here.
Please review the changes from rust-lang/rust@1d81eb4 up to rust-lang/rust@a30aa90
Log for this commit range
bf16to arm features rust-lang/rust#163979RustaceansAreAwesomesatisfy trait clauses rust-lang/rust#163958Complex<T>ABI match GCC rust-lang/rust#163617rustc::missing_generic_type_visitablelint rust-lang/rust#163538x86_64-mingwrust-lang/rust#163861-Z stack-protectorby default in all editions rust-lang/rust#157941repr(C)ZSTs from others in ABI computation rust-lang/rust#156112thin-vecto 0.2.21, including fix for.collect()capacity rust-lang/rust#163959WellFormedLoc::HirIdforoffset_of!Sizedobligation cause codeWellFormedLocrepr(C)ZSTs from others in ABI computationLocalDefIdas an index in metadata encoding rust-lang/rust#163321bf16to arm featuresincoherent_impllinking rust-lang/rust#163841loop_hint_attrsfromTerminatorintoTerminatorKind::Gotorust-lang/rust#163931tests/debuginfoonx86_64-mingwhas_reliable_f16bfor Arm rust-lang/rust#163807as_c_char_ptrin several places rust-lang/rust#163789rustdoc-htmltests in the right location rust-lang/rust#163768unitand[1 x unit]layouts are incompatible on big-endian targets rust-lang/rust#163343optimizeattribute rust-lang/rust#157273is_readyrust-lang/rust#152557consttypo and avoid unnecessary second error rust-lang/rust#149753PartialResand its alignment rust-lang/rust#163916Selfin constructor paths again rust-lang/rust#163863target_family = "wasm"instead oftarget_arch = "wasm32"rust-lang/rust#163794rustc_on_unimplementedattribute. rust-lang/rust#163508tests/crashesmigration for-Znext-solverrust-lang/rust#163806x86_64-pc-windows-msvcin CI rust-lang/rust#163090