Rollup of 11 pull requests #143173

matthiaskrgr · 2025-06-29T04:59:33Z

Successful merges:

Doc: clarify priority of lint level sources #142021 (Doc: clarify priority of lint level sources)
Add regression test for #137857 to ensure that we generate intra doc links for extern crate items. #142367 (Add regression test for Rust docs: Crate root link points to "folder" and not index page #137857 to ensure that we generate intra doc links for extern crate items.)
Generate symbols.o for proc-macros too #142641 (Generate symbols.o for proc-macros too)
Clarify doc comment on unix OpenOptions #142889 (Clarify doc comment on unix OpenOptions)
explain ImportData::imported_module #143063 (explain ImportData::imported_module)
Improve documentation of TagEncoding #143088 (Improve documentation of TagEncoding)
fix typos on some doc comments #143135 (fix typos on some doc comments)
Port #[link_name] to the new attribute parsing infrastructure #143138 (Port #[link_name] to the new attribute parsing infrastructure)
librustdoc house-keeping 🧹 #143155 (librustdoc house-keeping 🧹)
Remove unused feature gates #143169 (Remove unused feature gates)
Fix the span of trait bound modifier [const] #143171 (Fix the span of trait bound modifier [const])

r? @ghost
@rustbot modify labels: rollup

This updates the rustc book to clearly document how conflicting lint configurations are resolved across different sources, including command-line flags, crate-level attributes, in-line attributes, and `--cap-lints`. It also explains the special behavior of `forbid` and `force_warn`.

To ensure used statics are functioning correctly for proc-macros too.

…ntra doc links for extern crate items.

Co-authored-by: Anne Stijns <[email protected]> Signed-off-by: Jonathan Brouwer <[email protected]>

…Drop #![feature(rustc_private)]

…c, r=ehuss Doc: clarify priority of lint level sources This updates the rustc book to clearly document how conflicting lint configurations are resolved across different sources, including command-line flags, crate-level attributes, in-line attributes, and `--cap-lints`. It also explains the special behavior of `forbid` and `force_warn`. Fixes rust-lang#124088

…intra-doc, r=lolbinarycat Add regression test for rust-lang#137857 to ensure that we generate intra doc links for extern crate items. Fixes rust-lang#137857. I checked that linking to extern crates was generating valid links (with the `/index.html` part) and since it's already working, just adding a regression test. r? `@notriddle`

…youxu Generate symbols.o for proc-macros too To ensure used statics are functioning correctly for proc-macros too.

…acrum Clarify doc comment on unix OpenOptions

explain `ImportData::imported_module` r? `@petrochenkov`

…tag, r=RalfJung Improve documentation of `TagEncoding` This PR is follow-up from the [discussion here](https://rust-lang.zulipchat.com/#narrow/channel/182449-t-compiler.2Fhelp/topic/.E2.9C.94.20VariantId.3DDiscriminant.20when.20tag.20is.20niche.20encoded.3F/with/524384295). It aims at making the `TagEncoding` documentation less ambiguous and more detailed with references to relevant implementation sides. It especially clears up the ambiguous use of discriminant/variant index, which sparked the discussion referenced above. PS: While working with layout data, I somehow ended up looking at the docs for `FakeBorrowKind` and noticed that the one example was not in a doc comment. I hope that this is minor enough of a fix for it to be okay in this otherwise unrelated PR.

fix typos on some doc comments

…r=jdonszelmann Port `#[link_name]` to the new attribute parsing infrastructure Ports `link_name` to the new attribute parsing infrastructure for rust-lang#131229 (comment) r? `@jdonszelmann`

… r=GuillaumeGomez `librustdoc` house-keeping 🧹 This PR mostly removes a bunch of crate-level attributes that were added at some point, but then later on became unnecessary: - some `#[feature]` gates - some `#[allow]`s - a `#[recursion_limit]` Then I went ahead and sprinkled some tidy sorting on the remaining attrs, and `Cargo.toml`. Trying to give my anal retentiveness some peace of mind 😅

…compiler-errors Remove unused feature gates After finding some unused feature gates in rust-lang#143155 , I wrote a small script to see if I can find any others. And I did. Not a lot, but still a small win 😁 Contains a few instances of `iter_from_coroutine` that can be removed due to rust-lang#142801 (I guess).

…, r=compiler-errors Fix the span of trait bound modifier `[const]` r? project-const-traits or anyone

matthiaskrgr · 2025-06-29T05:00:33Z

@bors r+ rollup=never p=5

bors · 2025-06-29T05:00:36Z

📌 Commit a262c00 has been approved by matthiaskrgr

It is now in the queue for this repository.

bors · 2025-06-29T07:22:42Z

⌛ Testing commit a262c00 with merge 5ca574e...

bors · 2025-06-29T10:23:15Z

☀️ Test successful - checks-actions
Approved by: matthiaskrgr
Pushing 5ca574e to master...

rust-timer · 2025-06-29T10:26:22Z

📌 Perf builds for each rolled up PR:

PR#	Message	Perf Build Sha
#142021	Doc: clarify priority of lint level sources	`adcd17f92d8340bc53ede4e9b7576c1efaceaa70` (link)
#142367	Add regression test for #137857 to ensure that we generate …	`434805f2965fa4d259c890d0a43e6f1d8ce4a005` (link)
#142641	Generate symbols.o for proc-macros too	`291d09f374f4ac159422c4d96cc642a1eb338f39` (link)
#142889	Clarify doc comment on unix OpenOptions	`b548d114eb1d33a97b6d4dd2c469990444c62084` (link)
#143063	explain `ImportData::imported_module`	`d82e5e6b319839ce4f214db2cafc6c1498f7a1e2` (link)
#143088	Improve documentation of `TagEncoding`	`4806f921ae5a119beeb1e0522814dc46ceab92f2` (link)
#143135	fix typos on some doc comments	`740f607069e41ffe6a80ae391b5566065f029a60` (link)
#143138	Port `#[link_name]` to the new attribute parsing infrastruc…	`ebfadf2b9383c86d0ce5e3dcc7522ca19f5fbeb1` (link)
#143155	`librustdoc` house-keeping 🧹	`aedaa7f7af513671c7dfb557d162ce57dd0f0743` (link)
#143169	Remove unused feature gates	`039a981d6459f4b7ff90374f46a6f729d9536d2c` (link)
#143171	Fix the span of trait bound modifier `[const]`	`8dddde42417f73446585ba27a5f4edba75ae0e22` (link)

previous master: dddd7ab962

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 · 2025-06-29T10:26:32Z

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 dddd7ab (parent) -> 5ca574e (this PR)

Test differences

Show 71 test diffs

Stage 1

[run-make] tests/run-make/used-proc-macro: [missing] -> pass (J0)
[rustdoc] tests/rustdoc/intra-doc/deps.rs: [missing] -> pass (J0)

Stage 2

[run-make] tests/run-make/used-proc-macro: [missing] -> ignore (ignored when cross-compiling) (J1)
[run-make] tests/run-make/used-proc-macro: [missing] -> pass (J2)
[run-make] tests/run-make/used-proc-macro: [missing] -> ignore (skipping test as target does not support all of the crate types ["proc-macro"]) (J3)
[run-make] tests/run-make/used-proc-macro: [missing] -> ignore (ignored when the operating system is windows (llvm-readobj --all doesn't show local symbols on Windows)) (J4)
[rustdoc] tests/rustdoc/intra-doc/deps.rs: [missing] -> pass (J5)
[run-make] tests/run-make/used-proc-macro: [missing] -> ignore (ignored when the target environment is musl ((FIXME: can't find -lunwind))) (J6)

Additionally, 63 doctest diffs were found. These are ignored, as they are noisy.

Job group index

J0: x86_64-gnu-llvm-19-3, x86_64-gnu-llvm-20-3
J1: arm-android, armhf-gnu
J2: aarch64-apple, aarch64-gnu, aarch64-gnu-debug, i686-gnu-1, i686-gnu-nopt-1, x86_64-apple-1, x86_64-gnu, x86_64-gnu-debug, x86_64-gnu-llvm-19-2, x86_64-gnu-llvm-20-2, x86_64-gnu-nopt, x86_64-gnu-stable
J3: dist-various-1
J4: i686-msvc-1, x86_64-mingw-1, x86_64-msvc-1
J5: aarch64-apple, aarch64-gnu, i686-gnu-1, i686-gnu-nopt-1, i686-msvc-1, x86_64-apple-2, x86_64-gnu, x86_64-gnu-llvm-19-2, x86_64-gnu-llvm-20-2, x86_64-gnu-nopt, x86_64-gnu-stable, x86_64-mingw-1, x86_64-msvc-1
J6: dist-i586-gnu-i586-i686-musl, test-various

Test dashboard

Run

cargo run --manifest-path src/ci/citool/Cargo.toml -- \
    test-dashboard 5ca574e85b67cec0a6fc3fddfe398cbe676c9c69 --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

x86_64-apple-1: 6112.5s -> 8427.5s (37.9%)
mingw-check-1: 1539.1s -> 1833.9s (19.2%)
dist-apple-various: 6955.3s -> 5639.8s (-18.9%)
x86_64-rust-for-linux: 2545.2s -> 2978.0s (17.0%)
mingw-check-2: 1827.2s -> 2120.7s (16.1%)
x86_64-apple-2: 4627.2s -> 5362.2s (15.9%)
dist-x86_64-apple: 8626.6s -> 9840.5s (14.1%)
i686-gnu-2: 5412.1s -> 6133.2s (13.3%)
i686-gnu-nopt-1: 7012.4s -> 7891.5s (12.5%)
x86_64-gnu-tools: 3248.4s -> 3628.3s (11.7%)

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 · 2025-06-29T11:50:12Z

Finished benchmarking commit (5ca574e): comparison URL.

Overall result: ❌ regressions - please read the text below

Our benchmarks found a performance regression caused by this PR.
This might be an actual regression, but it can also be just noise.

Next Steps:

If the regression was expected or you think it can be justified,
please write a comment with sufficient written justification, and add
@rustbot label: +perf-regression-triaged to it, to mark the regression as triaged.
If you think that you know of a way to resolve the regression, try to create
a new PR with a fix for the regression.
If you do not understand the regression or you think that it is just noise,
you can ask the @rust-lang/wg-compiler-performance working group for help (members of this group
were already notified of this PR).

@rustbot label: +perf-regression
cc @rust-lang/wg-compiler-performance

Instruction count

Our most reliable metric. Used to determine the overall result above. However, even this metric can be noisy.

	mean	range	count
Regressions ❌ (primary)	0.5%	[0.3%, 0.7%]	2
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	0.5%	[0.3%, 0.7%]	2

Max RSS (memory usage)

Results (primary 1.4%)

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

	mean	range	count
Regressions ❌ (primary)	2.7%	[1.6%, 3.7%]	3
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-2.5%	[-2.5%, -2.5%]	1
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	1.4%	[-2.5%, 3.7%]	4

Cycles

Results (secondary -2.4%)

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)	-2.4%	[-3.5%, -1.8%]	11
All ❌✅ (primary)	-	-	0

Binary size

Results (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
Regressions ❌ (secondary)	0.0%	[0.0%, 0.0%]	1
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	-	-	0

Bootstrap: 696.482s -> 695.013s (-0.21%)
Artifact size: 371.74 MiB -> 371.77 MiB (0.01%)

matthiaskrgr · 2025-06-29T15:26:10Z

probably due to #142641 we are doing a little more work now ?

Mark-Simulacrum · 2025-07-01T00:03:03Z

@rust-timer build 291d09f

@bjorn3 if that comes back negative maybe there's an opportunity to cache the symbols in incremental? Looks like the regressed benchmarks are incr-unchanged...

rust-timer · 2025-07-01T04:20:44Z

Finished benchmarking commit (291d09f): comparison URL.

Overall result: ❌ regressions - please read the text below

Instruction count

Our most reliable metric. Used to determine the overall result above. However, even this metric can be noisy.

	mean	range	count
Regressions ❌ (primary)	0.5%	[0.4%, 0.7%]	2
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	0.5%	[0.4%, 0.7%]	2

Max RSS (memory usage)

Results (primary 0.0%)

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

	mean	range	count
Regressions ❌ (primary)	2.9%	[2.9%, 2.9%]	1
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-2.8%	[-2.8%, -2.8%]	1
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	0.0%	[-2.8%, 2.9%]	2

Cycles

Results (primary -0.9%, secondary -2.7%)

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)	-0.9%	[-0.9%, -0.9%]	1
Improvements ✅ (secondary)	-2.7%	[-3.3%, -1.9%]	7
All ❌✅ (primary)	-0.9%	[-0.9%, -0.9%]	1

Binary size

Results (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
Regressions ❌ (secondary)	0.0%	[0.0%, 0.0%]	1
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	-	-	0

Bootstrap: 696.482s -> 693.992s (-0.36%)
Artifact size: 371.74 MiB -> 371.71 MiB (-0.01%)

HamidrezaSK and others added 27 commits June 19, 2025 09:26

Generate symbols.o for proc-macros too

2bb98e2

To ensure used statics are functioning correctly for proc-macros too.

Add regression test for rust-lang#137857 to ensure that we generate i…

1052ddd

…ntra doc links for extern crate items.

fix typos on some doc comments

bc00a63

Port #[link_name] to the new attribute parsing infrastructure

1249c14

Co-authored-by: Anne Stijns <[email protected]> Signed-off-by: Jonathan Brouwer <[email protected]>

improve TagEncoding docs

ac6cfde

fix docs of FakeBorrowKind

3d96897

move discr=varid check to layout_sanity_check

1c25bfb

"set by Rusts options". Remove misleading always-true if cfg!(unix). …

45204ef

…Drop #![feature(rustc_private)]

explain ImportData::imported_module

f99cdf8

librustdoc: remove unneeded #[allow]s

09e4ee5

librustdoc: remove unneeded #[recursion_limit]

bcb287d

librustdoc: remove unused feature gates

96fcd06

librustdoc: use tidy for sorting attrs and deps

581cb11

Remove unused feature gates

8429c99

Fix the span of trait bound modifier [const]

f77fead

Rollup merge of rust-lang#142641 - bjorn3:proc_macro_symbols_o, r=jie…

e68f13c

…youxu Generate symbols.o for proc-macros too To ensure used statics are functioning correctly for proc-macros too.

Rollup merge of rust-lang#142889 - nabijaczleweli:rusts, r=Mark-Simul…

eef87fd

…acrum Clarify doc comment on unix OpenOptions

Rollup merge of rust-lang#143063 - bvanjoi:docs-resolve, r=petrochenkov

fd0062c

explain `ImportData::imported_module` r? `@petrochenkov`

Rollup merge of rust-lang#143135 - tshepang:typos, r=compiler-errors

170fd43

fix typos on some doc comments

Rollup merge of rust-lang#143138 - JonathanBrouwer:link_name_parser, …

5fc48ff

…r=jdonszelmann Port `#[link_name]` to the new attribute parsing infrastructure Ports `link_name` to the new attribute parsing infrastructure for rust-lang#131229 (comment) r? `@jdonszelmann`

Rollup merge of rust-lang#143171 - fmease:fix-span-of-maybe-const-mod…

a262c00

…, r=compiler-errors Fix the span of trait bound modifier `[const]` r? project-const-traits or anyone

rustbot added A-attributes Area: Attributes (`#[…]`, `#![…]`) A-run-make Area: port run-make Makefiles to rmake.rs A-translation Area: Translation infrastructure, and migrating existing diagnostics to SessionDiagnostic labels Jun 29, 2025

bors 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 Jun 29, 2025

bors added the merged-by-bors This PR was explicitly merged by bors. label Jun 29, 2025

bors merged commit 5ca574e into rust-lang:master Jun 29, 2025
11 checks passed

rustbot added this to the 1.90.0 milestone Jun 29, 2025

rustbot added the perf-regression Performance regression. label Jun 29, 2025

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Rollup of 11 pull requests #143173

Rollup of 11 pull requests #143173

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matthiaskrgr commented Jun 29, 2025 •

edited by rustbot

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Rollup of 11 pull requests #143173

Rollup of 11 pull requests #143173

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Test differences

Stage 1

Stage 2

Job duration changes

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rust-timer commented Jun 29, 2025

Overall result: ❌ regressions - please read the text below

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Overall result: ❌ regressions - please read the text below

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