Rollup of 2 pull requests #150633

JonathanBrouwer · 2026-01-03T00:28:41Z

Successful merges:

Add diagnostic items for without_provenance and without_provenance_mut #150627 (Add diagnostic items for without_provenance and without_provenance_mut)
rustc-dev-guide subtree update #150632 (rustc-dev-guide subtree update)

r? @ghost
@rustbot modify labels: rollup

Create a similar rollup

Fix function formatting in src/overview.md

Update 'Working groups' to 'Working areas' in docs

…heck-entries-clickable make date-check entries clickable

…eck-links make ci step more simple

This updates the rust-version file to 7fefa09.

Pull recent changes from https://github.com/rust-lang/rust via Josh. Upstream ref: 7fefa09 Filtered ref: 002cd53664b0eb50c44ed23284c3ced2a6eaa6d9 Upstream diff: rust-lang/rust@2dc3024...7fefa09 This merge was created using https://github.com/rust-lang/josh-sync.

Add guidance on suppressing warnings in tests

Rustc pull update

Add link for perf run Zulip channel

…_mut` Adds diagnostic items for `core::ptr::without_provenance` and `core::ptr::without_provenance_mut`. Will be used to enhance clippy lint `transmuting_null`, see rust-lang/rust-clippy#16336.

This updates the rust-version file to 85c8ff6.

Pull recent changes from https://github.com/rust-lang/rust via Josh. Upstream ref: 85c8ff6 Filtered ref: 7940f951867cc2e07cc21c36c56c0775db6951e9 Upstream diff: rust-lang/rust@7fefa09...85c8ff6 This merge was created using https://github.com/rust-lang/josh-sync.

Rustc pull update

…tics, r=Urgau Add diagnostic items for `without_provenance` and `without_provenance_mut` Adds diagnostic items for `core::ptr::without_provenance` and `core::ptr::without_provenance_mut`. Will be used to enhance clippy lint `transmuting_null`, see rust-lang/rust-clippy#16336.

rustc-dev-guide subtree update Subtree update of `rustc-dev-guide` to rust-lang/rustc-dev-guide@545f281. Created using https://github.com/rust-lang/josh-sync. r? `@ghost`

JonathanBrouwer · 2026-01-03T00:28:53Z

@bors r+ rollup=never p=5

bors · 2026-01-03T00:28:56Z

📌 Commit d00729b has been approved by JonathanBrouwer

It is now in the queue for this repository.

bors · 2026-01-03T04:03:12Z

⌛ Testing commit d00729b with merge 50d5940...

bors · 2026-01-03T07:25:21Z

☀️ Test successful - checks-actions
Approved by: JonathanBrouwer
Pushing 50d5940 to main...

rust-timer · 2026-01-03T07:25:59Z

📌 Perf builds for each rolled up PR:

PR#	Message	Perf Build Sha
#150627	Add diagnostic items for `without_provenance` and `without_…	`f413bd3a17055bf7a11a59e3f13a9de91ee1d76f` (link)
#150632	rustc-dev-guide subtree update	`3b768d0cafec77c80d52277ea47b4f16824fddc7` (link)

previous master: e8f3cfc0de

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 · 2026-01-03T07:28:36Z

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 e8f3cfc (parent) -> 50d5940 (this PR)

Test differences

Show 144 test diffs

144 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 50d59402bfb82a7fcdf542ed418affe425ff867e --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-mingw-1: 17441.7s -> 10022.2s (-42.5%)
dist-x86_64-apple: 9385.8s -> 7605.4s (-19.0%)
aarch64-apple: 10875.4s -> 8822.3s (-18.9%)
x86_64-gnu-stable: 7852.1s -> 8850.4s (+12.7%)
x86_64-msvc-ext1: 7836.6s -> 7163.4s (-8.6%)
x86_64-gnu-llvm-20: 4762.3s -> 4400.3s (-7.6%)
i686-msvc-2: 7356.8s -> 7901.2s (+7.4%)
dist-aarch64-apple: 6834.3s -> 6363.1s (-6.9%)
dist-apple-various: 3568.3s -> 3339.0s (-6.4%)
dist-x86_64-musl: 7353.0s -> 7809.3s (+6.2%)

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 · 2026-01-03T08:06:14Z

Finished benchmarking commit (50d5940): comparison URL.

Overall result: ❌✅ regressions and improvements - 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)	0.2%	[0.2%, 0.2%]	1
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-0.0%	[-0.0%, -0.0%]	1
All ❌✅ (primary)	-	-	0

Max RSS (memory usage)

Results (primary 1.7%, secondary -3.3%)

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

	mean	range	count
Regressions ❌ (primary)	1.7%	[0.6%, 3.3%]	3
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-3.3%	[-3.3%, -3.3%]	1
All ❌✅ (primary)	1.7%	[0.6%, 3.3%]	3

Cycles

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)	2.6%	[2.6%, 2.6%]	1
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-2.7%	[-2.7%, -2.7%]	1
All ❌✅ (primary)	-	-	0

Binary size

Results (primary 0.1%, secondary 0.1%)

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

	mean	range	count
Regressions ❌ (primary)	0.1%	[0.0%, 0.1%]	49
Regressions ❌ (secondary)	0.1%	[0.0%, 0.1%]	24
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	0.1%	[0.0%, 0.1%]	49

Bootstrap: 472.421s -> 470.889s (-0.32%)
Artifact size: 390.71 MiB -> 390.82 MiB (0.03%)

tshepang and others added 24 commits December 17, 2025 21:03

make date-check entries clickable

d5061a8

Fix function formatting in src/overview.md

5fbb39c

Merge pull request rust-lang#2707 from reddevilmidzy/fix

f61c7f7

Fix function formatting in src/overview.md

Update 'Working groups' to 'Working areas' in docs

611bece

Merge pull request rust-lang#2708 from reddevilmidzy/wa

db48a24

Update 'Working groups' to 'Working areas' in docs

put back line numbers

5a4f1c3

Merge pull request rust-lang#2702 from rust-lang/tshepang/make-date-c…

a7bdf0d

…heck-entries-clickable make date-check entries clickable

make ci step more simple

287d4df

Merge pull request rust-lang#2710 from rust-lang/tshepang/fix-date-ch…

e671d41

…eck-links make ci step more simple

stop checking if PRs are behind

61a8b6b

Prepare for merging from rust-lang/rust

cfd4d09

This updates the rust-version file to 7fefa09.

Add link for perf run Zulip channel

dc85816

Add guidance on suppressing warnings in tests

866598d

Merge pull request rust-lang#2715 from reddevilmidzy/warn

ed66fcb

Add guidance on suppressing warnings in tests

Merge pull request rust-lang#2713 from rust-lang/rustc-pull

5076810

Rustc pull update

Merge pull request rust-lang#2714 from reddevilmidzy/perf-run

90e5a5d

Add link for perf run Zulip channel

Merge pull request rust-lang#2712 from rust-lang/tshepang-patch-1

da0ad30

Add diagnostic items for without_provenance and `without_provenance…

7061adc

…_mut` Adds diagnostic items for `core::ptr::without_provenance` and `core::ptr::without_provenance_mut`. Will be used to enhance clippy lint `transmuting_null`, see rust-lang/rust-clippy#16336.

Prepare for merging from rust-lang/rust

c27addb

This updates the rust-version file to 85c8ff6.

Merge pull request rust-lang#2717 from rust-lang/rustc-pull

085d6b8

Rustc pull update

Rollup merge of rust-lang#150632 - tshepang:rdg-sync, r=tshepang

d00729b

rustc-dev-guide subtree update Subtree update of `rustc-dev-guide` to rust-lang/rustc-dev-guide@545f281. Created using https://github.com/rust-lang/josh-sync. r? `@ghost`

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 Jan 3, 2026

bors added the merged-by-bors This PR was explicitly merged by bors. label Jan 3, 2026

bors merged commit 50d5940 into rust-lang:main Jan 3, 2026
12 checks passed

rustbot added this to the 1.94.0 milestone Jan 3, 2026

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Rollup of 2 pull requests #150633

Rollup of 2 pull requests #150633

JonathanBrouwer commented Jan 3, 2026 •

edited by rustbot

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Test differences

Job duration changes

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rust-timer commented Jan 3, 2026

Overall result: ❌✅ regressions and improvements - no action needed

Instruction count

Max RSS (memory usage)

Cycles

Binary size

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JonathanBrouwer commented Jan 3, 2026 •

edited by rustbot

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