Update cargo submodule

[weihanglo]

12 commits in 71eb84f21aef43c07580c6aed6f806a6299f5042..623d536836b4cde09ce38609232a024d5b25da81
2025-08-17 17:18:56 +0000 to 2025-08-22 19:05:52 +0000

• test(frontmatter): Match test updates in rustc (test(frontmatter): Match test updates in rustc cargo#15878)
• chore: fix some typos in comment (chore: fix some typos in comment cargo#15877)
• Add Arm64 Windows CI jobs (Add Arm64 Windows CI jobs cargo#15790)
• suggest workspace hints for boolean dependencies (suggest workspace hints for boolean dependencies cargo#15507)
• make UnitGenerator public in cargo-as-a-library (make UnitGenerator public in cargo-as-a-library cargo#15873)
• Linting system (Linting system cargo#15865)
• Switch to using native mdbook fragment redirects (Switch to using native mdbook fragment redirects cargo#15861)
• docs(profile): revert wrong statement of lto options' optimization (docs(profile): revert wrong statement of lto options' optimization cargo#15855)
• docs: avoid ambiguity between update and fetch (docs: avoid ambiguity between update and fetch cargo#15860)
• docs: mention how Cargo fetch git submodules (docs: mention how Cargo fetch git submodules cargo#15853)
• feat(unstable): Added -Zbuild-dir-new-layout unstable feature (feat(unstable): Added -Zbuild-dir-new-layout unstable feature cargo#15848)
• Implement host-target substitution (Implement host-target substitution cargo#15838)

r? ghost

[rustbot]

Some changes occurred in src/tools/cargo

cc @ehuss

[rustbot]

⚠️ Warning ⚠️

• Some commits in this PR modify submodules.

  If this was not intentional, see I changed a submodule on accident in the rustc dev guide.

[weihanglo]

@bors r+ rollup=never p=1

[bors]

📌 Commit 75dc028 has been approved by weihanglo

It is now in the queue for this repository.

[bors]

⌛ Testing commit 75dc028 with merge 6d6a08c...

[bors]

☀️ Test successful - checks-actions
Approved by: weihanglo
Pushing 6d6a08c to master...

[github-actions]

What is this?

This is an experimental post-merge analysis report that shows differences in test outcomes between the merged PR and its parent PR.

Comparing 5b6ceb5 (parent) -> 6d6a08c (this PR)

Test differences

Show 10 test diffs

Stage 2

• bad_config::bad_dependency_true_literal: [missing] -> pass (J0)
• cross_compile::target_host_arg: [missing] -> pass (J0)
• cross_compile::target_host_config: [missing] -> pass (J0)
• util::toml::embedded::test_expand::rustc_frontmatter_inner_hyphens_1: [missing] -> pass (J0)
• util::toml::embedded::test_expand::rustc_frontmatter_inner_hyphens_2: [missing] -> pass (J0)
• util::toml::embedded::test_expand::rustc_hyphen_in_infostring_leading: [missing] -> pass (J0)
• util::toml::embedded::test_expand::rustc_hyphen_in_infostring_non_leading: [missing] -> pass (J0)
• util::toml::embedded::test_expand::rustc_included_frontmatter: [missing] -> pass (J0)

Additionally, 2 doctest diffs were found. These are ignored, as they are noisy.

Job group index

• J0: aarch64-apple, aarch64-gnu, x86_64-gnu-aux, x86_64-msvc-ext1

Test dashboard

Run

cargo run --manifest-path src/ci/citool/Cargo.toml -- \
    test-dashboard 6d6a08cf590ec26296447b8d2cf2329bb64c303a --output-dir test-dashboard

And then open test-dashboard/index.html in your browser to see an overview of all executed tests.

Job duration changes

1. dist-apple-various: 5865.6s -> 4968.2s (-15.3%)
2. dist-x86_64-freebsd: 4911.0s -> 5437.2s (10.7%)
3. test-various: 4675.8s -> 5129.4s (9.7%)
4. i686-msvc-2: 7749.5s -> 8412.6s (8.6%)
5. x86_64-gnu-llvm-19: 2710.7s -> 2499.3s (-7.8%)
6. aarch64-apple: 6714.1s -> 6242.7s (-7.0%)
7. dist-aarch64-apple: 6806.9s -> 6359.3s (-6.6%)
8. pr-check-1: 1345.7s -> 1429.6s (6.2%)
9. tidy: 187.3s -> 177.5s (-5.3%)
10. dist-x86_64-mingw: 8807.3s -> 8345.3s (-5.2%)

How to interpret the job duration changes?

Job durations can vary a lot, based on the actual runner instance
that executed the job, system noise, invalidated caches, etc. The table above is provided
mostly for t-infra members, for simpler debugging of potential CI slow-downs.

[rust-timer]

Finished benchmarking commit (6d6a08c): comparison URL.

Overall result: no relevant changes - no action needed

@rustbot label: -perf-regression

Instruction count

This benchmark run did not return any relevant results for this metric.

Max RSS (memory usage)

Results (secondary -2.3%)

A less reliable metric. May be of interest, but not used to determine the overall result above.

	mean	range	count
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-2.3%	[-2.3%, -2.3%]	1
All ❌✅ (primary)	-	-	0

Cycles

Results (primary -2.3%)

A less reliable metric. May be of interest, but not used to determine the overall result above.

	mean	range	count
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-2.3%	[-2.5%, -2.1%]	2
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	-2.3%	[-2.5%, -2.1%]	2

Binary size

This benchmark run did not return any relevant results for this metric.

Bootstrap: 468.26s -> 468.355s (0.02%)
Artifact size: 378.14 MiB -> 378.17 MiB (0.01%)