Rollup of 7 pull requests

[Urgau]

Successful merges:

• Sync relnotes for stable 1.93.1 #152505 (Sync relnotes for stable 1.93.1)
• Stabilize assert_matches #137487 (Stabilize assert_matches)
• borrowck: suggest &mut *x for pattern reborrows #152281 (borrowck: suggest &mut *x for pattern reborrows)
• Support ADT types in type info reflection #151142 (Support ADT types in type info reflection)
• rustc-dev-guide subtree update #152477 (rustc-dev-guide subtree update)
• allow deprecated(since = "CURRENT_RUSTC_VERSION") #152488 (allow deprecated(since = "CURRENT_RUSTC_VERSION"))
• Remove unused fluent-syntax dependency from tidy #152491 (Remove unused fluent-syntax dependency from tidy)

r? @ghost

Create a similar rollup

[Urgau]

@bors r+ rollup=never p=5

[rust-bors]

📌 Commit 452e85a has been approved by Urgau

It is now in the queue for this repository.

[rust-bors]

☀️ Test successful - CI
Approved by: Urgau
Duration: 3h 12m 27s
Pushing 605f49b to main...

[rust-timer]

📌 Perf builds for each rolled up PR:

PR#	Message	Perf Build Sha
#137487	Stabilize assert_matches	9a42ca30e44f8f2ef329232d6aac94bb9411f9ac (link)
#151142	Support ADT types in type info reflection	a12724e6e29146086236ab9517377906412519ff (link)
#152281	borrowck: suggest &mut *x for pattern reborrows	c6e0cda63a3d006a4b65fa6404c8f069e17b1843 (link)
#152477	rustc-dev-guide subtree update	af8d821cef667653cd5a933529a78408806e29ec (link)
#152488	allow deprecated(since = "CURRENT_RUSTC_VERSION")	159701b01ae3a641b78b7df2f3e3d206189abcd6 (link)
#152491	Remove unused fluent-syntax dependency from tidy	d9d94a252e932577048cc130b247c9eadeeedf10 (link)
#152505	Sync relnotes for stable 1.93.1	1f63a60ae50afa1af77a83374dc2134dc8d61f72 (link)

previous master: 5fdff787e6

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]

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 5fdff78 (parent) -> 605f49b (this PR)

Test differences

Show 186 test diffs

Stage 1

• mem::type_info::test_enums: [missing] -> pass (J1)
• mem::type_info::test_structs: [missing] -> pass (J1)
• mem::type_info::test_unions: [missing] -> pass (J1)
• [ui] tests/ui/borrowck/reborrow-in-match-suggest-deref.rs: [missing] -> pass (J2)
• [ui] tests/ui/reflection/dump.rs#bit32: ignore (only executed when the pointer width is 32bit) -> [missing] (J2)
• [ui] tests/ui/reflection/dump.rs#bit64: pass -> [missing] (J2)

Stage 2

• mem::type_info::test_enums: [missing] -> pass (J0)
• mem::type_info::test_structs: [missing] -> pass (J0)
• mem::type_info::test_unions: [missing] -> pass (J0)
• [ui] tests/ui/reflection/dump.rs#bit32: ignore (only executed when the pointer width is 32bit) -> [missing] (J3)
• [ui] tests/ui/reflection/dump.rs#bit64: pass -> [missing] (J3)
• [ui] tests/ui/reflection/dump.rs#bit32: pass -> [missing] (J4)
• [ui] tests/ui/reflection/dump.rs#bit64: ignore (only executed when the pointer width is 64bit) -> [missing] (J4)
• [ui] tests/ui/borrowck/reborrow-in-match-suggest-deref.rs: [missing] -> pass (J5)

Additionally, 172 doctest diffs were found. These are ignored, as they are noisy.

Job group index

• J0: aarch64-apple, aarch64-gnu, aarch64-gnu-llvm-20-1, aarch64-msvc-1, arm-android, armhf-gnu, dist-i586-gnu-i586-i686-musl, i686-gnu-1, i686-gnu-nopt-1, i686-msvc-1, test-various, x86_64-gnu, x86_64-gnu-aux, x86_64-gnu-llvm-20-2, x86_64-gnu-llvm-21-2, x86_64-gnu-nopt, x86_64-gnu-stable, x86_64-mingw-1, x86_64-msvc-1
• J1: pr-check-2, x86_64-gnu-llvm-20-3, x86_64-gnu-llvm-21-3
• J2: x86_64-gnu-llvm-20-3, x86_64-gnu-llvm-21-3
• J3: aarch64-apple, aarch64-gnu, aarch64-gnu-llvm-20-1, aarch64-msvc-1, test-various, x86_64-gnu, x86_64-gnu-debug, x86_64-gnu-gcc, x86_64-gnu-nopt, x86_64-gnu-stable, x86_64-mingw-1, x86_64-msvc-1
• J4: arm-android, armhf-gnu, dist-i586-gnu-i586-i686-musl, i686-gnu-1, i686-gnu-nopt-1, i686-msvc-1, x86_64-gnu-llvm-20, x86_64-gnu-llvm-20-2, x86_64-gnu-llvm-21-2
• J5: aarch64-apple, aarch64-gnu, aarch64-gnu-llvm-20-1, aarch64-msvc-1, arm-android, armhf-gnu, dist-i586-gnu-i586-i686-musl, i686-gnu-1, i686-gnu-nopt-1, i686-msvc-1, test-various, x86_64-gnu, x86_64-gnu-debug, x86_64-gnu-gcc, x86_64-gnu-llvm-20, x86_64-gnu-llvm-20-2, x86_64-gnu-llvm-21-2, x86_64-gnu-nopt, x86_64-gnu-stable, x86_64-mingw-1, x86_64-msvc-1

Test dashboard

Run

cargo run --manifest-path src/ci/citool/Cargo.toml -- \
    test-dashboard 605f49b27444a738ea4032cb77e3bdc4eb811bab --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

1. aarch64-apple: 5h 27m -> 2h 58m (-45.7%)
2. dist-apple-various: 1h 52m -> 1h 35m (-15.2%)
3. dist-powerpc-linux: 1h 21m -> 1h 31m (+11.9%)
4. x86_64-msvc-ext2: 1h 33m -> 1h 43m (+10.9%)
5. i686-gnu-nopt-1: 2h 18m -> 2h 3m (-10.8%)
6. dist-x86_64-msvc-alt: 2h 32m -> 2h 47m (+9.8%)
7. x86_64-gnu-distcheck: 2h 7m -> 2h 18m (+8.5%)
8. pr-check-1: 30m 49s -> 33m 22s (+8.3%)
9. test-various: 2h 3m -> 1h 53m (-8.0%)
10. dist-aarch64-llvm-mingw: 1h 52m -> 2h 1m (+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]

Finished benchmarking commit (605f49b): comparison URL.

Overall result: ❌✅ regressions and improvements - 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)	0.2%	[0.2%, 0.2%]	1
Regressions ❌ (secondary)	0.2%	[0.1%, 0.2%]	3
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-0.1%	[-0.2%, -0.1%]	2
All ❌✅ (primary)	0.2%	[0.2%, 0.2%]	1

Max RSS (memory usage)

Results (primary 1.0%, secondary -2.8%)

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

	mean	range	count
Regressions ❌ (primary)	1.0%	[0.6%, 1.7%]	3
Regressions ❌ (secondary)	1.2%	[1.2%, 1.2%]	1
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-4.8%	[-5.2%, -4.4%]	2
All ❌✅ (primary)	1.0%	[0.6%, 1.7%]	3

Cycles

Results (primary -2.3%, secondary -0.6%)

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)	7.5%	[2.5%, 12.4%]	2
Improvements ✅ (primary)	-2.3%	[-2.3%, -2.3%]	1
Improvements ✅ (secondary)	-4.7%	[-7.4%, -2.1%]	4
All ❌✅ (primary)	-2.3%	[-2.3%, -2.3%]	1

Binary size

Results (primary -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
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-0.1%	[-0.1%, -0.1%]	8
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	-0.1%	[-0.1%, -0.1%]	8

Bootstrap: 476.59s -> 473.252s (-0.70%)
Artifact size: 397.90 MiB -> 395.87 MiB (-0.51%)