[slashmo]

We previously silently re-threw target-based errors in apply(). Now, we add a final error log line to let operators know that the migration run failed. The PR also adds extensive unit testing for all log entries across the library.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ All tests successful. No failed tests found.

📢 Thoughts on this report? Let us know!

[github-actions]

✅ Pull request no significant performance differences ✅

Summary

�[33mWarning: this project depends on the benchmark package using its legacy
identifier 'package-benchmark'. The repository has been renamed; please update
your Package.swift to use the new URL and identifier:

.package(url: "https://github.com/ordo-one/benchmark", ...)
.product(name: "Benchmark", package: "benchmark"),
.plugin(name: "BenchmarkPlugin", package: "benchmark"),

Support for the legacy 'package-benchmark' identifier will be removed in a
future release.�[0m

�[33mWarning: running with the Swift runtime interposer on Linux to avoid the Swift 6.3 runtime hook crash. See https://github.com/ordo-one/benchmark/issues/349�[0m

New baseline 'pull_request' is WITHIN the 'main' baseline thresholds.

Full Benchmark Comparison

�[33mWarning: this project depends on the benchmark package using its legacy
identifier 'package-benchmark'. The repository has been renamed; please update
your Package.swift to use the new URL and identifier:

.package(url: "https://github.com/ordo-one/benchmark", ...)
.product(name: "Benchmark", package: "benchmark"),
.plugin(name: "BenchmarkPlugin", package: "benchmark"),

Support for the legacy 'package-benchmark' identifier will be removed in a
future release.�[0m

�[33mWarning: running with the Swift runtime interposer on Linux to avoid the Swift 6.3 runtime hook crash. See https://github.com/ordo-one/benchmark/issues/349�[0m

Comparing results between 'main' and 'pull_request'

Host 'f744ecb461d6' with 4 'x86_64' processors with 15 GB memory, running:
#13~24.04.1-Ubuntu SMP Wed Apr 15 16:52:17 UTC 2026

CraneBenchmarks

FileSystemMigrationResolver: Read SQL Script metrics

Time (wall clock): results within specified thresholds, fold down for details.

Time (wall clock) (μs) *	p0	p25	p50	p75	p90	p99	p100	Samples
main	11	11	11	11	11	13	13	88
pull_request	11	11	11	11	11	13	13	89
Δ	0	0	0	0	0	0	0	1
Improvement %	0	0	0	0	0	0	0	1

Time (total CPU): results within specified thresholds, fold down for details.

Time (total CPU) (μs) *	p0	p25	p50	p75	p90	p99	p100	Samples
main	0	10	10	10	20	20	20	88
pull_request	0	10	10	10	20	20	20	89
Δ	0	0	0	0	0	0	0	1
Improvement %	0	0	0	0	0	0	0	1

Throughput (# / s): results within specified thresholds, fold down for details.

Throughput (# / s) (K)	p0	p25	p50	p75	p90	p99	p100	Samples
main	93	92	92	92	91	76	76	88
pull_request	93	93	92	92	91	79	79	89
Δ	0	1	0	0	0	3	3	1
Improvement %	0	1	0	0	0	4	4	1

Memory (resident peak): results within specified thresholds, fold down for details.

Memory (resident peak) (M)	p0	p25	p50	p75	p90	p99	p100	Samples
main	49	50	50	50	50	50	50	88
pull_request	49	49	49	49	49	49	49	89
Δ	0	-1	-1	-1	-1	-1	-1	1
Improvement %	0	2	2	2	2	2	2	1

Malloc (total): results within specified thresholds, fold down for details.

Malloc (total) *	p0	p25	p50	p75	p90	p99	p100	Samples
main	9	9	9	9	9	9	9	88
pull_request	9	9	9	9	9	9	9	89
Δ	0	0	0	0	0	0	0	1
Improvement %	0	0	0	0	0	0	0	1

FileSystemMigrationResolver: Resolve metrics

Time (wall clock): results within specified thresholds, fold down for details.

Time (wall clock) (ms) *	p0	p25	p50	p75	p90	p99	p100	Samples
main	73	73	74	74	74	74	74	14
pull_request	72	72	72	72	73	73	73	14
Δ	-1	-1	-2	-2	-1	-1	-1	0
Improvement %	1	1	3	3	1	1	1	0

Time (total CPU): results within specified thresholds, fold down for details.

Time (total CPU) (ms) *	p0	p25	p50	p75	p90	p99	p100	Samples
main	70	70	70	80	80	80	80	14
pull_request	60	70	70	80	80	80	80	14
Δ	-10	0	0	0	0	0	0	0
Improvement %	14	0	0	0	0	0	0	0

Throughput (# / s): results within specified thresholds, fold down for details.

Throughput (# / s) (#)	p0	p25	p50	p75	p90	p99	p100	Samples
main	14	14	14	14	14	14	14	14
pull_request	14	14	14	14	14	14	14	14
Δ	0	0	0	0	0	0	0	0
Improvement %	0	0	0	0	0	0	0	0

Memory (resident peak): results within specified thresholds, fold down for details.

Memory (resident peak) (M)	p0	p25	p50	p75	p90	p99	p100	Samples
main	49	49	49	49	49	49	49	14
pull_request	49	49	49	49	49	49	49	14
Δ	0	0	0	0	0	0	0	0
Improvement %	0	0	0	0	0	0	0	0

Malloc (total): results within specified thresholds, fold down for details.

Malloc (total) (K) *	p0	p25	p50	p75	p90	p99	p100	Samples
main	75	75	75	75	75	75	75	14
pull_request	75	75	75	75	75	75	75	14
Δ	0	0	0	0	0	0	0	0
Improvement %	0	0	0	0	0	0	0	0

FileSystemMigrationResolver: Resolve recursively metrics

Time (wall clock): results within specified thresholds, fold down for details.

Time (wall clock) (ms) *	p0	p25	p50	p75	p90	p99	p100	Samples
main	75	76	76	76	76	88	88	13
pull_request	75	75	75	75	76	77	77	14
Δ	0	-1	-1	-1	0	-11	-11	1
Improvement %	0	1	1	1	0	12	12	1

Time (total CPU): results within specified thresholds, fold down for details.

Time (total CPU) (ms) *	p0	p25	p50	p75	p90	p99	p100	Samples
main	60	70	80	80	90	90	90	13
pull_request	70	70	80	80	80	90	90	14
Δ	10	0	0	0	-10	0	0	1
Improvement %	-17	0	0	0	11	0	0	1

Throughput (# / s): results within specified thresholds, fold down for details.

Throughput (# / s) (#)	p0	p25	p50	p75	p90	p99	p100	Samples
main	13	13	13	13	13	11	11	13
pull_request	13	13	13	13	13	13	13	14
Δ	0	0	0	0	0	2	2	1
Improvement %	0	0	0	0	0	18	18	1

Memory (resident peak): results within specified thresholds, fold down for details.

Memory (resident peak) (M)	p0	p25	p50	p75	p90	p99	p100	Samples
main	49	49	49	49	49	49	49	13
pull_request	49	49	49	49	49	49	49	14
Δ	0	0	0	0	0	0	0	1
Improvement %	0	0	0	0	0	0	0	1

Malloc (total): results within specified thresholds, fold down for details.

Malloc (total) (K) *	p0	p25	p50	p75	p90	p99	p100	Samples
main	76	76	76	76	76	76	76	13
pull_request	76	76	76	76	76	76	76	14
Δ	0	0	0	0	0	0	0	1
Improvement %	0	0	0	0	0	0	0	1