Rollup of 5 pull requests by JonathanBrouwer · Pull Request #161347 · rust-lang/rust

JonathanBrouwer · 2026-08-19T08:53:05Z

Successful merges:

Revert "Rollup merge of #161006 - GuillaumeGomez:gcc-binutils, r=Kobzol" #161218 (Revert "Rollup merge of [CI] Build newer binutils before building gcc #161006 - GuillaumeGomez:gcc-binutils, r=Kobzol")
Make const eval return normalized ty #160526 (Make const eval return normalized ty)
Fix a couple of links in AVR target documentation #160460 (Fix a couple of links in AVR target documentation)
compiler: Account for default_sanitizers when comparing target modifiers #161333 (compiler: Account for default_sanitizers when comparing target modifiers)
rustc-dev-guide subtree update #161343 (rustc-dev-guide subtree update)

Signed-off-by: Aland <158173939+aland-omed@users.noreply.github.com>

- Update a link to MCU list in the code and make it an actual link - Make avr-tester link point to the crate page (which is more expected and informative) instead of a repository (which has also moved)

`./x` was duplicated; the explanation of when to use alternatives was not quite correct; and the intro sentence was also slightly inaccurate.

Give better examples of how to run `x`

fix some typos and update some links

This makes it easy for us to see as maintainers what needs an owner, and helps people reading the guide a little bit so they don't get excited then disappointed.

…ir-macro-docs Add documentation for some `rustc_type_ir` macros

Explicitly mark stub chapters in the table of contents

- delete `inline-asm` and redirect it to `asm` - rename `optional-x86_64-gnu-parallel-frontend` to include the `optional-`, matching rl/r - add a redirect from `/llm-guidance/` to `/llm-guidance`, i think there's some docs floating around that accidentally suggest the former.

Fix orphaned chapters

- Remove duplicate "chicken-and-egg" explanation. It only needs to be in one place. - Change most references from `x.py` to `./x`, "bootstrap", or `bootstrap.py` as appropriate. Keep the ones where `x.py` is load-bearing. - Remove over-long and duplicated instructions around the bootstrap wrappers

Cleanup bootstrap references

Update offload docs for macro and third pass

This updates the rust-version file to 2c39ff4.

Pull recent changes from https://github.com/rust-lang/rust via Josh. Upstream ref: rust-lang/rust@2c39ff4 Filtered ref: rust-lang/rustc-dev-guide@52b5831 Upstream diff: rust-lang/rust@e64c8a6...2c39ff4 This merge was created using https://github.com/rust-lang/josh-sync.

bump `mdbook-linkcheck2` in CI

Rustc pull update

md links work on both Github and in the published site, whereas html links only work on the published site. Update `mdbook-linkcheck2` to the latest version, which supports a new `require-md-extension` option; enable that option; then fix all the errors.

Use .md links consistently

…s, r=Kobzol" This reverts commit 5d4e11e, reversing changes made to 71b938c.

Document debuginfo `repr` directive

…ce-folder-2473 docs: Clarify Neovim workspace path setup

Add a hint about unflatten and an internal link to MIR outlives graphs to advertise them better.

@lcnr

…malized-ty-return, r=khyperia Make const eval return normalized ty closes: rust-lang/trait-system-refactor-initiative#286 closes: rust-lang#156294 r? @lcnr

…h726 Fix a couple of links in AVR target documentation - Update a link to MCU list in the code and make it an actual link - Make avr-tester link point to the crate page (which is more expected and informative) instead of a repository (which has also moved)

…anitizers, r=mu001999 compiler: Account for default_sanitizers when comparing target modifiers Prior to this PR, rustc would complain about mismatched ABIs if crates built with -Zsanitizer=shadow-call-stack were mixed with crates not built with -Zsanitizer=shadow-call-stack for the exact same target where SCS is one of the default_sanitizers. Rustc should also take into account default_sanitizers before doing the target modifiers checks. AI: Gemini was used to initially help write tests for this PR. I edited some of it and reviewed it to the best of my ability before submitting.

@ghost

rustc-dev-guide subtree update Subtree update of `rustc-dev-guide` to rust-lang/rustc-dev-guide@5613bfe. Created using https://github.com/rust-lang/josh-sync. r? @ghost

JonathanBrouwer · 2026-08-19T08:53:14Z

@bors r+ p=5

rust-bors · 2026-08-19T08:53:17Z

📌 Commit 07337b4 has been approved by JonathanBrouwer

It is now in the queue for this repository.

rust-bors · 2026-08-19T12:08:11Z

☀️ Test successful - CI
Approved by: JonathanBrouwer
Duration: 3h 6m 14s
Pushing f7d782a to main...

github-actions · 2026-08-19T12:11:42Z

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 407371f (parent) -> f7d782a (this PR)

Test differences

Show 36 test diffs

Stage 1

[ui (polonius)] tests/ui/target_modifiers/sanitizer_default.rs#explicit_default: [missing] -> pass (J1)
[ui (polonius)] tests/ui/target_modifiers/sanitizer_default.rs#explicit_mismatch: [missing] -> pass (J1)
[ui (polonius)] tests/ui/target_modifiers/sanitizer_default.rs#implicit_default: [missing] -> pass (J1)
[ui (polonius)] tests/ui/target_modifiers/sanitizer_default.rs#implicit_mismatch: [missing] -> pass (J1)
[ui (polonius)] tests/ui/traits/next-solver/adt-const-param-projection.rs#next: [missing] -> pass (J1)
[ui (polonius)] tests/ui/traits/next-solver/adt-const-param-projection.rs#old: [missing] -> pass (J1)
[ui (polonius)] tests/ui/traits/next-solver/normalize-const-item-type.rs: [missing] -> pass (J1)
[ui] tests/ui/target_modifiers/sanitizer_default.rs#explicit_default: [missing] -> pass (J3)
[ui] tests/ui/target_modifiers/sanitizer_default.rs#explicit_mismatch: [missing] -> pass (J3)
[ui] tests/ui/target_modifiers/sanitizer_default.rs#implicit_default: [missing] -> pass (J3)
[ui] tests/ui/target_modifiers/sanitizer_default.rs#implicit_mismatch: [missing] -> pass (J3)
[ui] tests/ui/traits/next-solver/adt-const-param-projection.rs#next: [missing] -> pass (J3)
[ui] tests/ui/traits/next-solver/adt-const-param-projection.rs#old: [missing] -> pass (J3)
[ui] tests/ui/traits/next-solver/normalize-const-item-type.rs: [missing] -> pass (J3)

Stage 2

[ui] tests/ui/target_modifiers/sanitizer_default.rs#explicit_default: [missing] -> pass (J0)
[ui] tests/ui/target_modifiers/sanitizer_default.rs#explicit_mismatch: [missing] -> pass (J0)
[ui] tests/ui/target_modifiers/sanitizer_default.rs#implicit_default: [missing] -> pass (J0)
[ui] tests/ui/target_modifiers/sanitizer_default.rs#implicit_mismatch: [missing] -> pass (J0)
[ui] tests/ui/target_modifiers/sanitizer_default.rs#explicit_default: [missing] -> ignore (gcc backend is marked as ignore) (J2)
[ui] tests/ui/target_modifiers/sanitizer_default.rs#explicit_mismatch: [missing] -> ignore (gcc backend is marked as ignore) (J2)
[ui] tests/ui/target_modifiers/sanitizer_default.rs#implicit_default: [missing] -> ignore (gcc backend is marked as ignore) (J2)
[ui] tests/ui/target_modifiers/sanitizer_default.rs#implicit_mismatch: [missing] -> ignore (gcc backend is marked as ignore) (J2)
[ui] tests/ui/traits/next-solver/adt-const-param-projection.rs#next: [missing] -> pass (J4)
[ui] tests/ui/traits/next-solver/adt-const-param-projection.rs#old: [missing] -> pass (J4)
[ui] tests/ui/traits/next-solver/normalize-const-item-type.rs: [missing] -> pass (J4)

Additionally, 11 doctest diffs were found. These are ignored, as they are noisy.

Job group index

Test dashboard

Run

cargo run --manifest-path src/ci/citool/Cargo.toml -- \
    test-dashboard f7d782a3be46d6bb4b9792fe69a61db389ba1769 --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

i686-msvc-1: 1h 43m -> 3h 4m (+77.8%)
x86_64-gnu-stdlib-semver-check: 10m 35s -> 18m 49s (+77.8%)
x86_64-gnu-llvm-22-3: 1h 16m -> 1h 54m (+50.4%)
dist-sparcv9-solaris: 1h 8m -> 1h 41m (+47.7%)
dist-i686-msvc: 2h 18m -> 1h 35m (-30.9%)
x86_64-msvc-2: 1h 28m -> 1h 54m (+30.3%)
i686-msvc-2: 2h 12m -> 1h 37m (-26.8%)
x86_64-gnu-llvm-21-3: 1h 24m -> 1h 46m (+25.0%)
test-various: 1h 57m -> 1h 29m (-23.8%)
x86_64-gnu-parallel-frontend: 1h 38m -> 2h 1m (+23.5%)

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 · 2026-08-19T12:51:00Z

Finished benchmarking commit (f7d782a): comparison URL.

Overall result: ❌ regressions - no action needed

@rustbot label: -perf-regression

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
Regressions ❌ (secondary)	1.1%	[1.1%, 1.1%]	1
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	-	-	0

Max RSS (memory usage)

Results (secondary 3.0%)

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)	3.0%	[3.0%, 3.0%]	1
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	-	-	0

Cycles

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

Binary size

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)	-	-	0
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-0.0%	[-0.0%, -0.0%]	2
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	-0.0%	[-0.0%, -0.0%]	2

Bootstrap: 458.213s -> 456.256s (-0.43%)
Artifact size: 399.03 MiB -> 398.95 MiB (-0.02%)

rust-bors · 2026-08-19T13:13:53Z

📌 Perf builds for each rolled up PR:

PR#	Message	Perf Build Sha
#161218	Revert "Rollup merge of #161006 - GuillaumeGomez:gcc-binuti…	`c15176be2a8b59d11e4062959c72cf273cd33c77` (link)
#160526	Make const eval return normalized ty	`8d188b533e2753afc10a2b6490b71739c2882d78` (link)
#160460	Fix a couple of links in AVR target documentation	`3ea726e28e44fd1c90c58902ababd38da63d12c6` (link)
#161333	compiler: Account for default_sanitizers when comparing tar…	`f1f6ef39b5b3d8de61f99d0086b7976af904a548` (link)
#161343	rustc-dev-guide subtree update	`1ba4d77b30fc0d66885a35149658f511d2511c01` (link)

parent commit: 407371fb75

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

aland-omed and others added 30 commits July 22, 2026 03:59

docs: Clarify Neovim workspace path setup

7e6f472

Signed-off-by: Aland <158173939+aland-omed@users.noreply.github.com>

Fix a couple of links in AVR target documentation

a19d2de

- Update a link to MCU list in the code and make it an actual link - Make avr-tester link point to the crate page (which is more expected and informative) instead of a repository (which has also moved)

Add documentation for some rustc_type_ir macros

fcd6175

ordering of sections, typos and removed incorrect statement

45eb8ca

Give better examples of how to run x

23016c0

`./x` was duplicated; the explanation of when to use alternatives was not quite correct; and the intro sentence was also slightly inaccurate.

Merge pull request rust-lang#2964 from jyn514/x-fixups

38d3100

Give better examples of how to run `x`

fix some typos and update some links

93ea5ae

Merge pull request rust-lang#2965 from jyn514/typo-fixes

97869b0

fix some typos and update some links

Explicitly mark stub chapters in the table of contents

7d2d9ca

This makes it easy for us to see as maintainers what needs an owner, and helps people reading the guide a little bit so they don't get excited then disappointed.

Merge pull request rust-lang#2939 from Jamesbarford/chore/rustc_type_…

1f9f694

…ir-macro-docs Add documentation for some `rustc_type_ir` macros

Merge pull request rust-lang#2967 from jyn514/stubs

c9aea25

Explicitly mark stub chapters in the table of contents

Merge pull request rust-lang#2968 from jyn514/orphaned-chapters

86a906c

Fix orphaned chapters

Merge pull request rust-lang#2966 from jyn514/bootstrap-docs

8e4a9b8

Cleanup bootstrap references

Update offload docs for macro and third pass

e2332ad

Merge pull request rust-lang#2969 from Sa4dUs/offload-generic-example

8a88516

Update offload docs for macro and third pass

Prepare for merging from rust-lang/rust

05a0dff

This updates the rust-version file to 2c39ff4.

bump mdbook-linkcheck2 in CI

8fcce54

Merge pull request rust-lang#2971 from Walnut356/linkcheck_bump

0f19fec

bump `mdbook-linkcheck2` in CI

Merge pull request rust-lang#2970 from rust-lang/rustc-pull

7ba4564

Rustc pull update

Use .md links consistently

bee090e

md links work on both Github and in the published site, whereas html links only work on the published site. Update `mdbook-linkcheck2` to the latest version, which supports a new `require-md-extension` option; enable that option; then fix all the errors.

Document debuginfo repr directive

5d0b6b6

Merge pull request rust-lang#2972 from jyn514/md-links

3d4e2be

Use .md links consistently

Revert "Rollup merge of rust-lang#161006 - GuillaumeGomez:gcc-binutil…

8c4b741

…s, r=Kobzol" This reverts commit 5d4e11e, reversing changes made to 71b938c.

Merge pull request rust-lang#2947 from Walnut356/di_test

ee19916

Document debuginfo `repr` directive

Merge pull request rust-lang#2938 from aland-omed/docs/neovim-workspa…

0d0d69a

…ce-folder-2473 docs: Clarify Neovim workspace path setup

Update compiler-debugging.md

e649400

Add a hint about unflatten and an internal link to MIR outlives graphs to advertise them better.

Update dataflow.md to mention region graphs

f1605e7

JonathanBrouwer added 4 commits August 19, 2026 10:53

Rollup merge of rust-lang#160526 - bit-aloo:2026-08-04-const-eval-nor…

769863b

…malized-ty-return, r=khyperia Make const eval return normalized ty closes: rust-lang/trait-system-refactor-initiative#286 closes: rust-lang#156294 r? @lcnr

Rollup merge of rust-lang#161343 - tshepang:rdg-sync, r=tshepang

07337b4

rustc-dev-guide subtree update Subtree update of `rustc-dev-guide` to rust-lang/rustc-dev-guide@5613bfe. Created using https://github.com/rust-lang/josh-sync. r? @ghost

rust-bors Bot added the rollup A PR which is a rollup label Aug 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 Aug 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 Aug 19, 2026

rust-bors Bot merged commit f7d782a into rust-lang:main Aug 19, 2026
14 checks passed

rustbot added this to the 1.100.0 milestone Aug 19, 2026

This was referenced Aug 19, 2026

check wf before const-evaluating #160237

Open

sess: target modifiers under -T #160167

Open

Check associated const binding types #161131

Open

weihanglo mentioned this pull request Aug 20, 2026

chore: bump to cc@1.4.3 for rustc_llvm and library #161260

Open

JonathanBrouwer deleted the rollup-uv2vd9y branch August 21, 2026 07:55

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Rollup of 5 pull requests - #161347

Rollup of 5 pull requests#161347
rust-bors[bot] merged 81 commits into
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Test differences

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Job duration changes

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rust-timer commented Aug 19, 2026

Overall result: ❌ regressions - no action needed

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