Rollup of 5 pull requests

[JonathanBrouwer]

Successful merges:

• Reformat top_level_options! and options! macro declarations #155331 (Reformat top_level_options! and options! macro declarations)
• bump std libc to 0.2.185 #155332 (bump std libc to 0.2.185)
• attribute cleanup: rustc_confusables #155286 (attribute cleanup: rustc_confusables)
• CValue::zst() - add missing "ZST" in docs #155306 (CValue::zst() - add missing "ZST" in docs)
• various small rustc_expand cleanups #155311 (various small rustc_expand cleanups)

r? @ghost

Create a similar rollup

[JonathanBrouwer]

@bors r+ rollup=never p=5

[rust-bors]

📌 Commit 439410f has been approved by JonathanBrouwer

It is now in the queue for this repository.

[rust-bors]

💔 Test for 71f4f54 failed: CI. Failed job:

• auto - x86_64-gnu-llvm-22-1 (web logs, enhanced plaintext logs)

[rust-log-analyzer]

A job failed! Check out the build log: (web) (plain enhanced) (plain)

Click to see the possible cause of the failure (guessed by this bot)

##[endgroup]
Image input checksum 8808edb3604b1e929c1d2316d5912ca04329fa4b79e352f54c4425ff2e75e3d082c6d57477973c2148874869471a5a7aa49b7e66acae5d358298ea79ea409354
##[group]Building docker image for x86_64-gnu-llvm-22
Docker version 28.0.4, build b8034c0
Error response from daemon: Get "https://ghcr.io/v2/": dial tcp: lookup ghcr.io on 127.0.0.53:53: read udp 127.0.0.1:46511->127.0.0.53:53: i/o timeout
##[error]Process completed with exit code 1.
##[group]Run echo "disk usage:"
echo "disk usage:"
df -h
shell: /usr/bin/bash --noprofile --norc -e -o pipefail {0}

[JonathanBrouwer]

@bors retry

[rust-bors]

☀️ Test successful - CI
Approved by: JonathanBrouwer
Duration: 3h 14m 24s
Pushing 9620eae to main...

[rust-timer]

📌 Perf builds for each rolled up PR:

PR#	Message	Perf Build Sha
#155286	attribute cleanup: rustc_confusables	0a44ccd3a2ff698404577b41b179de996ca468ea (link)
#155306	CValue::zst() - add missing "ZST" in docs	b5ac24530910388894ad51efe5857c811a12a870 (link)
#155311	various small rustc_expand cleanups	94ff1e79e9ca946743225174017061f24c4b03ee (link)
#155331	Reformat top_level_options! and options! macro declarat…	15274c78307f6162427fc4583aedb21988dc7ac1 (link)
#155332	bump std libc to 0.2.185	bde168c7593ef3c81a2b81c78b0611bc7acef784 (link)

previous master: 32e4c0ecbd

In the case of a perf regression, run the following command for each PR you suspect might be the cause: @rust-timer build $SHA

[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 32e4c0e (parent) -> 9620eae (this PR)

Test differences

Show 2 test diffs

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

Test dashboard

Run

cargo run --manifest-path src/ci/citool/Cargo.toml -- \
    test-dashboard 9620eae30ab7614dcb72d44c4ce1dac497f6ae18 --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: 2h 11m -> 1h 21m (-37.4%)
2. x86_64-gnu-miri: 1h 8m -> 1h 33m (+36.1%)
3. i686-gnu-nopt-2: 2h 20m -> 1h 47m (-23.7%)
4. dist-i686-mingw: 2h 53m -> 2h 12m (-23.5%)
5. dist-x86_64-apple: 2h 11m -> 1h 42m (-21.9%)
6. dist-aarch64-apple: 1h 55m -> 1h 29m (-21.8%)
7. dist-powerpc64-linux-musl: 1h 40m -> 1h 20m (-19.7%)
8. x86_64-msvc-2: 2h 32m -> 2h 5m (-18.0%)
9. dist-aarch64-msvc: 1h 49m -> 1h 33m (-15.0%)
10. dist-x86_64-freebsd: 1h 9m -> 1h 19m (+13.9%)

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 (9620eae): comparison URL.

Overall result: no relevant changes - no action needed

@rustbot label: -perf-regression

Instruction count

This perf run didn't have relevant results for this metric.

Max RSS (memory usage)

Results (primary -1.8%, secondary 2.9%)

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)	2.9%	[2.9%, 2.9%]	1
Improvements ✅ (primary)	-1.8%	[-1.8%, -1.8%]	1
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	-1.8%	[-1.8%, -1.8%]	1

Cycles

Results (secondary -2.8%)

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)	-2.8%	[-2.8%, -2.8%]	1
All ❌✅ (primary)	-	-	0

Binary size

This perf run didn't have relevant results for this metric.

Bootstrap: 490.627s -> 489.918s (-0.14%)
Artifact size: 394.10 MiB -> 394.13 MiB (0.01%)