Rollup of 4 pull requests #151352

Zalathar · 2026-01-19T04:28:04Z

Successful merges:

fix(build-manifest): enable docs target fallback for rustc-docs #151080 (fix(build-manifest): enable docs target fallback for rustc-docs)
Fix capitalization of diag messages #151328 (Fix capitalization of diag messages)
miri subtree update #151341 (miri subtree update)
Add myself to the review rotation #151349 (Add myself to the review rotation)

r? @ghost

Create a similar rollup

Convert Windows to use check_shim_sig instead of check_shim_sig_lenient

…iting inline byte slices for data writes Refactor socketpair tests to use utility functions for reading and writing

add `pmaddwd` shim

Add miri specific extern functions for managing threads

…ests/libc-socketpair Refactor socketpair tests to use utility functions for reading/writing

…ests/libc-affinity Refactor CPU affinity tests to use errno_check for error handling

…ests/libc-time Refactor libc time tests to use errno_check for error handling

readme: clarify 'single-threaded interpreter'

This updates the rust-version file to 44a5b55.

Pull recent changes from https://github.com/rust-lang/rust via Josh. Upstream ref: rust-lang/rust@44a5b55 Filtered ref: rust-lang/miri@6df126d Upstream diff: rust-lang/rust@f57b9e6...44a5b55 This merge was created using https://github.com/rust-lang/josh-sync.

Automatic Rustup

This updates the rust-version file to b6fdaf2.

Pull recent changes from https://github.com/rust-lang/rust via Josh. Upstream ref: rust-lang/rust@b6fdaf2 Filtered ref: rust-lang/miri@f982e90 Upstream diff: rust-lang/rust@44a5b55...b6fdaf2 This merge was created using https://github.com/rust-lang/josh-sync.

Automatic Rustup

…ests/libc-epoll-blocking Refactor epoll tests to use errno_result and improve notification checks

shims: add FIXME for missing direct tests

…ests/libc-fs-symlink Refactor `libc-fs-symlink` tests to use errno_result

…tructions add avx512 `pack*` family of instructions to shims

…=clubby789 fix(build-manifest): enable docs target fallback for `rustc-docs`

Fix capitalization of diag messages Per https://rustc-dev-guide.rust-lang.org/diagnostics.html#diagnostic-output-style-guide > Error, Warning, Note, and Help messages start with a lowercase letter and do not end with punctuation.

@ghost

miri subtree update Subtree update of `miri` to rust-lang/miri@2d0a4f4. Created using https://github.com/rust-lang/josh-sync. r? @ghost

Add myself to the review rotation I was mildly confused about why I never got randomly assigned PR and procrastinated on it 😆 It's time to do it.

Zalathar · 2026-01-19T04:30:05Z

Rollup of everything.

@bors r+ rollup=never p=5

rust-bors · 2026-01-19T04:30:09Z

📌 Commit 1eb8961 has been approved by Zalathar

It is now in the queue for this repository.

rust-bors · 2026-01-19T09:40:00Z

☀️ Test successful - CI
Approved by: Zalathar
Pushing 53b6f89 to main...

rust-timer · 2026-01-19T09:41:11Z

📌 Perf builds for each rolled up PR:

PR#	Message	Perf Build Sha
#151080	fix(build-manifest): enable docs target fallback for `rustc…	`8b4679b4cc2754c357eed7268802cbc1cd282f4b` (link)
#151328	Fix capitalization of diag messages	`905035bb04028668e2f00796a7ad0f5e09fe9cfe` (link)
#151341	miri subtree update	`9e250ecf36d0777b144eb1c5fc5b7b726e0ac96d` (link)
#151349	Add myself to the review rotation	`1c960cd8c12376dca79d00abc68db7835be7accd` (link)

previous master: 3d087e6044

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 · 2026-01-19T09:43:07Z

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 3d087e6 (parent) -> 53b6f89 (this PR)

Test differences

Show 4 test diffs

4 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 53b6f89be2772d910da39b8e9968712e3ce3f9f8 --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

dist-aarch64-linux: 6540.7s -> 8862.6s (+35.5%)
dist-apple-various: 3425.8s -> 4229.7s (+23.5%)
i686-gnu-1: 8100.5s -> 6946.8s (-14.2%)
dist-sparcv9-solaris: 5671.7s -> 5080.3s (-10.4%)
aarch64-apple: 9379.5s -> 10341.3s (+10.3%)
i686-gnu-2: 5756.7s -> 5208.6s (-9.5%)
aarch64-msvc-2: 5656.4s -> 6144.4s (+8.6%)
x86_64-gnu-llvm-21-3: 7291.7s -> 6680.5s (-8.4%)
dist-ohos-x86_64: 4411.9s -> 4063.8s (-7.9%)
dist-arm-linux-musl: 5890.5s -> 5430.6s (-7.8%)

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 · 2026-01-19T10:20:56Z

Finished benchmarking commit (53b6f89): 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 1.8%)

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)	3.7%	[2.9%, 4.4%]	2
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-2.1%	[-2.1%, -2.1%]	1
All ❌✅ (primary)	-	-	0

Cycles

Results (secondary -4.2%)

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)	-4.2%	[-4.3%, -4.0%]	3
All ❌✅ (primary)	-	-	0

Binary size

Results (primary 0.0%, secondary 0.0%)

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

	mean	range	count
Regressions ❌ (primary)	0.0%	[0.0%, 0.0%]	13
Regressions ❌ (secondary)	0.0%	[0.0%, 0.1%]	6
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	0.0%	[0.0%, 0.0%]	13

Bootstrap: 473.646s -> 475.784s (0.45%)
Artifact size: 383.28 MiB -> 383.30 MiB (0.01%)

hulxv and others added 30 commits December 17, 2025 22:54

Refactor CPU affinity tests to use errno_check for error handling

fd1a753

Refactor libc time tests to use errno_check for error handling

d5d605a

Refactor libc-fs-symlink tests to use errno_result

cecc26b

Convert Windows to use check_shim_sig instead of check_shim_sig_lenient

c5f6783

tweak shim_sig

00693a8

Merge pull request rust-lang#4779 from CraftSpider/windows-shim-sig

078712b

Convert Windows to use check_shim_sig instead of check_shim_sig_lenient

add pmaddwd shim

6750919

Refactor socketpair tests to use utility functions for reading and wr…

fb9b6bd

…iting inline byte slices for data writes Refactor socketpair tests to use utility functions for reading and writing

Refactor epoll tests to use errno_result and improve notification checks

ffaf76a

Merge pull request rust-lang#4808 from folkertdev/pmaddwd

7dc7942

add `pmaddwd` shim

Add miri specific shims for managing threads in no_std projects

1caf7b2

Merge pull request rust-lang#4807 from loftyinclination/master

fab0a65

Add miri specific extern functions for managing threads

use io::Result for read/write helpers, and add read_until_eof_into_slice

bd31b9d

Merge pull request rust-lang#4770 from hulxv/refactor/simplify-libc-t…

ded9a2b

…ests/libc-socketpair Refactor socketpair tests to use utility functions for reading/writing

readme: clarify 'single-threaded interpreter'

03ad5b0

Merge pull request rust-lang#4771 from hulxv/refactor/simplify-libc-t…

7a1b8bf

…ests/libc-affinity Refactor CPU affinity tests to use errno_check for error handling

Merge pull request rust-lang#4773 from hulxv/refactor/simplify-libc-t…

8029c44

…ests/libc-time Refactor libc time tests to use errno_check for error handling

Merge pull request rust-lang#4811 from RalfJung/readme

decd472

readme: clarify 'single-threaded interpreter'

Prepare for merging from rust-lang/rust

199aa68

This updates the rust-version file to 44a5b55.

test closing std streams separately, and in two configurations

41939ae

Merge pull request rust-lang#4814 from rust-lang/rustup-2026-01-12

c947436

Automatic Rustup

fix(build-manifest): enable docs target fallback for rustc-docs

596ea17

Prepare for merging from rust-lang/rust

d59c47c

This updates the rust-version file to b6fdaf2.

Merge pull request rust-lang#4815 from rust-lang/rustup-2026-01-15

b184dd9

Automatic Rustup

use epoll_ctl_add more often

2ef85d7

Merge pull request rust-lang#4772 from hulxv/refactor/simplify-libc-t…

255b483

…ests/libc-epoll-blocking Refactor epoll tests to use errno_result and improve notification checks

shims: add FIXME for missing direct tests

c367dfd

Merge pull request rust-lang#4817 from RalfJung/missing-tests

bf8091e

shims: add FIXME for missing direct tests

ChillFish8 and others added 10 commits January 18, 2026 18:31

Add avx512 pack* family of instructions

43fb39f

Merge pull request rust-lang#4800 from hulxv/refactor/simplify-libc-t…

41204bf

…ests/libc-fs-symlink Refactor `libc-fs-symlink` tests to use errno_result

Merge pull request rust-lang#4813 from ChillFish8/avx512/add-pack-ins…

e582ac3

…tructions add avx512 `pack*` family of instructions to shims

Fix capitalization of error messages

e668836

Update uitests

f5a1fc7

Add myself to the review rotation

40691d0

Rollup merge of rust-lang#151080 - dist/rustc-docs-target-fallback, r…

c7e2864

…=clubby789 fix(build-manifest): enable docs target fallback for `rustc-docs`

Rollup merge of rust-lang#151328 - diag-case, r=Urgau

82db63b

Fix capitalization of diag messages Per https://rustc-dev-guide.rust-lang.org/diagnostics.html#diagnostic-output-style-guide > Error, Warning, Note, and Help messages start with a lowercase letter and do not end with punctuation.

Rollup merge of rust-lang#151341 - miri, r=RalfJung

20b39b8

miri subtree update Subtree update of `miri` to rust-lang/miri@2d0a4f4. Created using https://github.com/rust-lang/josh-sync. r? @ghost

Rollup merge of rust-lang#151349 - join-it, r=tiif

1eb8961

Add myself to the review rotation I was mildly confused about why I never got randomly assigned PR and procrastinated on it 😆 It's time to do it.

rust-bors bot added the rollup A PR which is a rollup label Jan 19, 2026

rust-bors bot added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Jan 19, 2026

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rust-bors bot added merged-by-bors This PR was explicitly merged by bors. and removed S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. labels Jan 19, 2026

rust-bors bot merged commit 53b6f89 into rust-lang:main Jan 19, 2026
12 checks passed

rustbot added this to the 1.95.0 milestone Jan 19, 2026

Zalathar deleted the rollup-nUIzD3P branch January 19, 2026 09:50

rust-bors bot mentioned this pull request Jan 19, 2026

Switch the destructors implementation for thread locals on Windows to use FLS #148799

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Test differences

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rust-timer commented Jan 19, 2026

Overall result: no relevant changes - no action needed

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