Rollup of 7 pull requests #149085

matthiaskrgr · 2025-11-19T08:48:12Z

Successful merges:

recommend using a HashMap if a HashSet's second generic parameter doesn't implement BuildHasher #147171 (recommend using a HashMap if a HashSet's second generic parameter doesn't implement BuildHasher)
Add check if span is from macro expansion #147421 (Add check if span is from macro expansion)
Make SIMD intrinsics available in const-contexts #147521 (Make SIMD intrinsics available in const-contexts)
Start documenting autodiff activities #148201 (Start documenting autodiff activities)
feat: Add bit_width for unsigned NonZero<T> #148797 (feat: Add bit_width for unsigned NonZero<T>)
Match <OsString as Debug>::fmt to that of str #148798 (Match ::fmt to that of str)
autodiff: update formating, improve examples for the unstable-book #149082 (autodiff: update formating, improve examples for the unstable-book)

r? @ghost
@rustbot modify labels: rollup

…sn't implement BuildHasher

819247f changed <str as Debug>::fmt such that it does not escape single quotes, but neglected to apply the same choice to OsString. This commit does that.

Return `NonZero<u32>` instead of `u32`.

recommend using a HashMap if a HashSet's second generic parameter doesn't implement BuildHasher closes rust-lang#147147 ~The suggestion span is wrong, but I'm not sure how to find the right one.~ fixed I'm relatively new to the diagnostics ecosystem, so I'm not sure if `span_help` is the right choice. `span_suggestion_*` might be better, but the output from `x test` looks weird in that case.

Add check if span is from macro expansion The same thing I did in rust-lang#147416, actually the same bug but in another place, I'm not really sure how this method is good for fixing such ICEs, but, it does work and not conflicting with any existing tests, so I guess, it's fine Fixes rust-lang#147408 r? compiler

…adsmtm Make SIMD intrinsics available in `const`-contexts successor to rust-lang#146568, this PR actually makes the SIMD intrinsics `const`, and modifies the tests to test the const-eval implementations r? `@tgross35` ig (although feel free to reassign, this is not anything targeted really)

…li-obk Start documenting autodiff activities Some initial documentation of the autodiff macros and usage examples

…bit-width, r=scottmcm feat: Add `bit_width` for unsigned `NonZero<T>` - Tracking issue: rust-lang#142326 This pull request adds a method to the unsigned `NonZero<T>` that return the minimum number of bits required to represent a value. This can be achieved by using the `get` method and the methods added in rust-lang#142328, but I think adding the `NonZero::bit_width` method is useful because it accomplishes the same thing a little more succinctly.

Match <OsString as Debug>::fmt to that of str Fixes rust-lang#114583.

… r=chenyukang autodiff: update formating, improve examples for the unstable-book r? compiler

matthiaskrgr · 2025-11-19T08:50:53Z

@bors r+ rollup=never p=5

bors · 2025-11-19T08:50:56Z

📌 Commit fd88e61 has been approved by matthiaskrgr

It is now in the queue for this repository.

bors · 2025-11-19T08:54:10Z

⌛ Testing commit fd88e61 with merge 140044c...

bors · 2025-11-19T12:05:04Z

☀️ Test successful - checks-actions
Approved by: matthiaskrgr
Pushing 140044c to main...

rust-timer · 2025-11-19T12:07:10Z

📌 Perf builds for each rolled up PR:

PR#	Message	Perf Build Sha
#147171	recommend using a HashMap if a HashSet's second generic par…	`7a75fb021b6eef9391719f37928c4ea4acadb00e` (link)
#147421	Add check if span is from macro expansion	`c2c8315455ae96adbd98ce0751c295d0a9dcf10e` (link)
#147521	Make SIMD intrinsics available in `const`-contexts	`b759fb0827ffa131f4ad97cf2e5dab3c2c4bdd07` (link)
#148201	Start documenting autodiff activities	`6a5b6cc962123b9483f5b49207c363a424f3f9a1` (link)
#148797	feat: Add `bit_width` for unsigned `NonZero<T>`	`0da935011855a0284e9a29f2c0194fc86181d491` (link)
#148798	Match ::fmt to that of str	`0457dad57e4f8b380157d5324b82a6dbb660146a` (link)
#149082	autodiff: update formating, improve examples for the unstab…	`6bd972a0444ad5444e00b027d713504087065ff3` (link)

previous master: a591113c0a

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 · 2025-11-19T12:07:54Z

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 a591113 (parent) -> 140044c (this PR)

Test differences

Show 412 test diffs

Stage 1

nonzero::test_nonzero_bit_width: [missing] -> pass (J0)
[ui] tests/ui/hashmap/hashset_generics.rs: [missing] -> pass (J3)
[ui] tests/ui/macros/macro-expansion-empty-span-147408.rs: [missing] -> pass (J3)
ffi::os_str::tests::debug: [missing] -> pass (J4)

Stage 2

[ui] tests/ui/hashmap/hashset_generics.rs: [missing] -> pass (J1)
[ui] tests/ui/macros/macro-expansion-empty-span-147408.rs: [missing] -> pass (J1)
ffi::os_str::tests::debug: [missing] -> pass (J2)
nonzero::test_nonzero_bit_width: [missing] -> pass (J2)

Additionally, 404 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 140044cffad5ff8bad8d4a5d2d936bd1ed578db2 --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-gnu-llvm-20: 2517.3s -> 3170.9s (+26.0%)
aarch64-gnu-llvm-20-2: 2122.8s -> 2586.4s (+21.8%)
dist-apple-various: 3834.0s -> 3063.4s (-20.1%)
x86_64-rust-for-linux: 2633.8s -> 3086.9s (+17.2%)
aarch64-apple: 7545.2s -> 8794.4s (+16.6%)
dist-aarch64-apple: 6556.0s -> 7286.3s (+11.1%)
x86_64-msvc-2: 6623.3s -> 7354.4s (+11.0%)
x86_64-gnu-miri: 4374.9s -> 4852.9s (+10.9%)
x86_64-gnu-tools: 3377.4s -> 3744.4s (+10.9%)
i686-gnu-2: 5500.6s -> 6041.6s (+9.8%)

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.

ZuseZ4 and others added 18 commits October 28, 2025 00:47

Start documenting autodiff activities

a2dce77

feat: Add bit_width for unsigned NonZero<T>

f4efc37

Make SIMD intrinsics available in const-contexts

740b8ba

add check for when span is from macro expansion

47384f7

add autodiff examples

f5892da

Enable const-testing for the ported SIMD intrinsics

82ff614

recommend using a HashMap if a HashSet's second generic parameter doe…

754a82d

…sn't implement BuildHasher

Match <OsString as Debug>::fmt to that of str

1cfd0b7

819247f changed <str as Debug>::fmt such that it does not escape single quotes, but neglected to apply the same choice to OsString. This commit does that.

Remove <os::Vars as Debug> workaround

eb84efc

feat: Change return type of NonZero::bit_width

a25950d

Return `NonZero<u32>` instead of `u32`.

autodiff: update formating, improve examples for the unstable-book

0b2e02f

Rollup merge of rust-lang#148201 - ZuseZ4:autodiff-activity-docs, r=o…

3732c3c

…li-obk Start documenting autodiff activities Some initial documentation of the autodiff macros and usage examples

Rollup merge of rust-lang#148798 - tamird:esc-single-quote, r=Amanieu

48fa913

Match <OsString as Debug>::fmt to that of str Fixes rust-lang#114583.

Rollup merge of rust-lang#149082 - ZuseZ4:autodiff-unstable-book-fmt,…

fd88e61

… r=chenyukang autodiff: update formating, improve examples for the unstable-book r? compiler

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 Nov 19, 2025

bors added the merged-by-bors This PR was explicitly merged by bors. label Nov 19, 2025

bors merged commit 140044c into rust-lang:main Nov 19, 2025
12 checks passed

rustbot added this to the 1.93.0 milestone Nov 19, 2025

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Rollup of 7 pull requests #149085

Rollup of 7 pull requests #149085

matthiaskrgr commented Nov 19, 2025 •

edited by rustbot

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Rollup of 7 pull requests #149085

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matthiaskrgr commented Nov 19, 2025 •

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