Rollup of 18 pull requests by jhpratt · Pull Request #158753 · rust-lang/rust

jhpratt · 2026-07-03T22:23:59Z

Successful merges:

Add release notes for 1.96.1 #158692 (Add release notes for 1.96.1)
Implement IntoIterator for [&[mut]] Box<[T; N], A> #134021 (Implement IntoIterator for [&[mut]] Box<[T; N], A>)
Port the without_debuginfo test from backtrace-rs to the testsuite #152860 (Port the without_debuginfo test from backtrace-rs to the testsuite)
MIR Call terminator: evaluate destination place before arguments #155932 (MIR Call terminator: evaluate destination place before arguments)
Add -Zautodiff_post_passes flag to limit which llvm passes to run after enzyme to make autodiff tests more robust #156777 (Add -Zautodiff_post_passes flag to limit which llvm passes to run after enzyme to make autodiff tests more robust)
JSON target specs: remove 'x86-softfloat' compatibility alias #157151 (JSON target specs: remove 'x86-softfloat' compatibility alias)
expand free alias types in the auto-trait orphan check #157835 (expand free alias types in the auto-trait orphan check)
add -Zforce-intrinsic-fallback flag #158377 (add -Zforce-intrinsic-fallback flag)
delegation: refactor AST -> HIR lowering #158434 (delegation: refactor AST -> HIR lowering)
make some tidy errors around python easier to understand #158552 (make some tidy errors around python easier to understand)
borrowck: Introduce BlameConstraint::to_obligation_cause_from_path() #158624 (borrowck: Introduce BlameConstraint::to_obligation_cause_from_path())
Optimize ArrayChunks::try_rfold with DoubleEndedIterator::next_chunk_back #158704 (Optimize ArrayChunks::try_rfold with DoubleEndedIterator::next_chunk_back)
library: Comment on libtest's dicey internal soundness #158711 (library: Comment on libtest's dicey internal soundness)
Move SizeHint and IoHandle to core::io #158539 (Move SizeHint and IoHandle to core::io)
refactor the normalization in coerce_shared_info #158659 (refactor the normalization in coerce_shared_info)
resolver: don't use Finalize when resolving visibilities during AST expansion #158689 (resolver: don't use Finalize when resolving visibilities during AST expansion)
Update TypeVisitable implementation #158698 (Update TypeVisitable implementation)
Tweaks to MIR building scope API #158706 (Tweaks to MIR building scope API)

The compiler is removing the `x86-softfloat` [1], thus temporarily add a patch. As usual, the patch will eventually make it to the Linux kernel so that both sides are good. Cc: Ralf Jung <post@ralfj.de> Cc: Alice Ryhl <aliceryhl@google.com> Link: rust-lang#157151 [1] Signed-off-by: Miguel Ojeda <ojeda@kernel.org>

The auto-trait branch of the orphan check inspected the unexpanded self type, so an impl whose self type was a free (lazy) type alias was rejected even when the alias resolved to an otherwise valid nominal type, e.g. `unsafe impl Sync for Alias {}` with `type Alias = Local;`. Expand free alias types before classifying the self type, mirroring the locality check above. Expansion still reveals genuinely problematic self types (trait objects, opaque types, type parameters), so those keep being rejected.

…s a standalone command - error if RUSTC isn't set, which means it'll fall back to the user-installed default (wrong) - be more specific in `--bless` suggestions that they should use `x test tidy`, not tidy directly.

for non-interactive cases, such as CI, this makes it easier to tell what went wrong without having to interactively debug the problem.

Before this commit, `BlameConstraint` is a bit hard to understand at first, because of its `ObligationCause` field. In practice, `BlameConstraint` is just a slimmed down version of an `OutlivesConstraint` from `Vec<OutlivesConstraint>`. The artificial `ObligationCause` is only needed in one place. Rather than having that exception polute the lower level analysis, bubble it up as much as we can. That way, it becomes clearer what `BlameConstraint` actually is. For reference, `ObligationCause` was introdued by 93ab12e, but the codebase looked quite different back then.

Porting the notes from the stable branch.

…er enzyme

…back Co-authored-by: Vin <betadelphini.py@gmail.com>

All call sites use a static `DropKind` value, and we already have a dedicated named method for lints. Switch to only use dedicated methods for consistency.

This enforces the invariant that `size_hint` should always return `(lower_bound(), upper_bound())`.

Leaving the trait in a better state than it previously was. Co-Authored-By: Clar Fon <15850505+clarfonthey@users.noreply.github.com>

Co-authored-by: Jubilee <workingjubilee@gmail.com>

jhpratt · 2026-07-03T22:24:17Z

@bors r+ rollup=never p=5

Trying commonly failed jobs
@bors try jobs=dist-various-1,test-various,x86_64-gnu-aux,x86_64-gnu-llvm-21-3,x86_64-msvc-1,aarch64-apple,x86_64-mingw-1,i686-msvc-2

rust-bors · 2026-07-03T22:24:20Z

📌 Commit 2e45131 has been approved by jhpratt

It is now in the queue for this repository.

🌲 The tree is currently closed for pull requests below priority 1000. This pull request will be tested once the tree is reopened.

Rollup of 18 pull requests try-job: dist-various-1 try-job: test-various try-job: x86_64-gnu-aux try-job: x86_64-gnu-llvm-21-3 try-job: x86_64-msvc-1 try-job: aarch64-apple try-job: x86_64-mingw-1 try-job: i686-msvc-2

rust-bors · 2026-07-04T01:28:35Z

☀️ Try build successful (CI)
Build commit: b3b06c1 (b3b06c1f4901f280255b189eed8586cc3752211e)
Base parent: c397dae (c397dae808f70caebab1fc4e11b3edf7e59f58c7)

Rollup of 18 pull requests Successful merges: - #158692 (Add release notes for 1.96.1) - #134021 (Implement `IntoIterator` for `[&[mut]] Box<[T; N], A>`) - #152860 (Port the `without_debuginfo` test from `backtrace-rs` to the testsuite) - #155932 (MIR Call terminator: evaluate destination place before arguments) - #156777 (Add -Zautodiff_post_passes flag to limit which llvm passes to run after enzyme to make autodiff tests more robust) - #157151 (JSON target specs: remove 'x86-softfloat' compatibility alias) - #157835 (expand free alias types in the auto-trait orphan check) - #158377 (add `-Zforce-intrinsic-fallback` flag) - #158434 (delegation: refactor AST -> HIR lowering) - #158552 (make some tidy errors around python easier to understand) - #158624 (borrowck: Introduce BlameConstraint::to_obligation_cause_from_path()) - #158704 (Optimize `ArrayChunks::try_rfold` with `DoubleEndedIterator::next_chunk_back`) - #158711 (library: Comment on libtest's dicey internal soundness) - #158539 (Move `SizeHint` and `IoHandle` to `core::io`) - #158659 (refactor the normalization in `coerce_shared_info`) - #158689 (resolver: don't use `Finalize` when resolving visibilities during AST expansion) - #158698 (Update TypeVisitable implementation) - #158706 (Tweaks to MIR building scope API)

rust-log-analyzer · 2026-07-05T07:24:04Z

The job dist-i586-gnu-i586-i686-musl failed! Check out the build log: (web) (plain enhanced) (plain)

Click to see the possible cause of the failure (guessed by this bot)

failures:

---- [ui] tests/ui/backtrace/no_debuginfo/all_frames_have_symbols.rs stdout ----

error: test did not exit with success! code=Some(101) so test would pass with `run-fail`
status: exit status: 101
command: cd "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/backtrace/no_debuginfo/all_frames_have_symbols" && RUSTC="/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" RUST_TEST_THREADS="4" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/backtrace/no_debuginfo/all_frames_have_symbols/a"
stdout: none
--- stderr -------------------------------

thread 'main' (71647) panicked at /checkout/tests/ui/backtrace/no_debuginfo/all_frames_have_symbols.rs:37:9:
assertion failed: missing_symbols < has_symbols && missing_symbols <= 1
stack backtrace:
   0: __rustc::rust_begin_unwind
             at /rustc/02b8c2ee8f37117cbc2b7281e7df321f4b21d391/library/std/src/panicking.rs:679:5
   1: core::panicking::panic_fmt
             at /rustc/02b8c2ee8f37117cbc2b7281e7df321f4b21d391/library/core/src/panicking.rs:80:14

rust-bors · 2026-07-05T07:24:25Z

💔 Test for 02b8c2e failed: CI. Failed job:

auto - dist-i586-gnu-i586-i686-musl (web logs, enhanced plaintext logs)

rust-bors · 2026-07-05T07:27:34Z

PR #152860, which is a member of this rollup, was unapproved.

RalfJung and others added 30 commits May 3, 2026 10:05

MIR Call terminator: evaluate destination place before arguments

752a910

JSON target specs: remove 'x86-softfloat' compatibility alias

f6d98a4

Implement IntoIterator for [&[mut]] Box<[T; N], A>

5b4299f

add -Zforce-intrinsic-fallback flag

69d7670

Move std::io::IoHandle to core::io

cdac740

Move std::io::SizeHint to core::io

4746813

enable TIDY_PRINT_DIFF by default

264bf6d

for non-interactive cases, such as CI, this makes it easier to tell what went wrong without having to interactively debug the problem.

Add release notes for 1.96.1

ab4a014

Porting the notes from the stable branch.

Add -Zautodiff_post_passes flag to limit which llvm passes to run aft…

d7e4edd

…er enzyme

Update LLVM IR checks in codegen-llvm/autodiff tests

2a9e45d

update TypeVisitable implementation

cc7cef5

Refactor delegation AST -> HIR lowering

d42cca5

Optimize ArrayChunks::try_rfold with DoubleEndedIterator::next_chunk_…

841041c

…back Co-authored-by: Vin <betadelphini.py@gmail.com>

Restrict access to DropKind.

8b3fbb7

All call sites use a static `DropKind` value, and we already have a dedicated named method for lints. Switch to only use dedicated methods for consistency.

Simplify API.

28ed28a

Mark SizeHint::size_hint as a final method

5e19794

This enforces the invariant that `size_hint` should always return `(lower_bound(), upper_bound())`.

Add documentation to SizeHint

c2f51ae

Leaving the trait in a better state than it previously was. Co-Authored-By: Clar Fon <15850505+clarfonthey@users.noreply.github.com>

library: Comment on libtest's dicey internal soundness

4e2363a

refactor normalization in coerce_shared_info

23e6ca0

feat: add a nightly feature for Backtrace Frame access

7a498e6

test: port no_debuginfo to the testsuite

10f38ec

chore: update tests/ui/README.md

a970b2f

test: add debug info for the test to find the missing symbols

ee1fdcc

fixup chore: revert formatting changes

29ed3cc

fix: add exception for aarch64-unknown-linux-gnu

739932f

fix: add link to PR in tests/ui/no_debuginfo/all_frames_have_symbols.rs

0e93d64

Co-authored-by: Jubilee <workingjubilee@gmail.com>

rust-bors Bot added the rollup A PR which is a rollup label Jul 3, 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 Jul 3, 2026

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JonathanBrouwer mentioned this pull request Jul 5, 2026

Port the without_debuginfo test from backtrace-rs to the testsuite #152860

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rust-bors Bot added the S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. label Jul 5, 2026

rust-bors Bot removed the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Jul 5, 2026

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rustbot removed the S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. label Jul 5, 2026

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Rollup of 18 pull requests#158753

Rollup of 18 pull requests#158753
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