Rollup of 17 pull requests by JonathanBrouwer · Pull Request #158389 · rust-lang/rust

JonathanBrouwer · 2026-06-25T06:37:19Z

Successful merges:

Add arg splat experiment initial tuple impl #153697 (Add arg splat experiment initial tuple impl)
Use .drectve for MSVC DLL exports #158294 (Use .drectve for MSVC DLL exports)
codegen_ssa: multiply scalable vec size by vscale #158253 (codegen_ssa: multiply scalable vec size by vscale)
Avoid parser panics bubbling out to proc macros #158256 (Avoid parser panics bubbling out to proc macros)
Fix bug when rustdoc "go to only result" setting is not working as expected" #158308 (Fix bug when rustdoc "go to only result" setting is not working as expected")
Use transmute_neo in assume_init #158345 (Use transmute_neo in assume_init)
std: abort when resume_unwind is called inside the panic hook #158369 (std: abort when resume_unwind is called inside the panic hook)
Revert "rebuild LLVM when bootstrap.toml config changes" #158380 (Revert "rebuild LLVM when bootstrap.toml config changes")
Add test for async Send with PhantomData<*mut ()> + unsafe impl Send + dyn Trait #154398 (Add test for async Send with PhantomData<*mut ()> + unsafe impl Send + dyn Trait)
autodiff: stop always needing an alloca #157181 (autodiff: stop always needing an alloca)
autodiff - typtree cleanups #158278 (autodiff - typtree cleanups)
doc(unstable-book): fix typo "earier" -> "earlier" in default-visibility flag #158311 (doc(unstable-book): fix typo "earier" -> "earlier" in default-visibility flag)
Make normalization in a test case resilient to dist compilation #158318 (Make normalization in a test case resilient to dist compilation)
Move attribute and keyword docs from std to core #158327 (Move attribute and keyword docs from std to core)
Reorganize tests/ui/issues [14/N] #158338 (Reorganize tests/ui/issues [14/N])
Include Item::const_stability info in rustdoc JSON. #158343 (Include Item::const_stability info in rustdoc JSON.)
Fixup the refactoring errors in #156246 #158355 (Fixup the refactoring errors in Introduce a RerunNonErased error type mirroring NoSolution, to better track when we're bailing #156246)

Failed merges:

export symbols: support macos/windows(32/64) #155535 (export symbols: support macos/windows(32/64))

…impl Send + dyn Trait Add a regression test covering the case where a type uses PhantomData<*mut ()> to opt out of Sync, restores Send via an unsafe impl, and is then captured across an .await point with a trait object type parameter (Box<dyn Trait>). The compiler currently erases lifetimes in MIR coroutine witnesses, losing the 'static bound needed to apply the unsafe impl Send. The test verifies this is fixed by -Zhigher-ranked-assumptions and documents the PhantomData<Cell<()>> workaround as a comparison. See the PR description for links to the relevant issues. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

There will still be one for things that aren't just scalars or scalar pairs.

When emitting a `memcpy` for a scalable vector, the size computed by rustc (`num_vectors * element_count * element_ty`), since rust-lang#157915, needs to be multiplied by `vscale`.

Currently, rustc can emit a FatalError diagnostic during parsing of literals and tokenstreams. These are handled under the hood as a panic, which means that proc-macro code needed to catch_unwind if it wanted to fallibly parse some code. These still emit diagnostics, so in practice this isn't a full fix, but it at least makes the interface on the macro side a bit more uniform. This is primarily motivated by wasm proc macros which can't use catch_unwind and so this lets the test's output be the same with and without them.

And remove redundant const fn

While it would be reasonable to expect the Windows linker to handle linker args in the .drectve section identical to cli arguments, as it turns out exporting weak symbols only works when the /EXPORT is in the .drectve section, not when it is a linker argument or when a .DEF file is used.

- const, async, and unsafe functions - const generics, complex types, and where clauses (including impl Tuple)

…pected"

…ity.md The sentence in `src/doc/unstable-book/src/compiler-flags/default-visibility.md` contained the misspelling "earier" where "earlier" was meant. ``` -shared objects earier in the load order. +shared objects earlier in the load order. ``` This is detected by the project's typos configuration; `./x test tidy --extra-checks=spellcheck` would flag it on the next run. Signed-off-by: Dodothereal <129273127+Dodothereal@users.noreply.github.com>

The new normalization regex is taken from many existing test cases, see: https://github.com/search?q=repo%3Arust-lang%2Frust+%2Fthread+%27rustc%27%5C.%5C*panicked%2F&type=code which includes files such as `tests/ui/treat-err-as-bug/span_delayed_bug.rs` or `tests/ui/treat-err-as-bug/err.rs`

@lcnr

Fixup the refactoring errors in rust-lang#156246 r? @lcnr

JonathanBrouwer · 2026-06-25T06:37:31Z

@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 · 2026-06-25T06:37:36Z

📌 Commit 7418fd5 has been approved by JonathanBrouwer

It is now in the queue for this repository.

rust-bors · 2026-06-25T06:37:41Z

⌛ Trying commit 7418fd5 with merge 029f50a…

To cancel the try build, run the command @bors try cancel.

Workflow: https://github.com/rust-lang/rust/actions/runs/28151766626

Rollup of 17 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-log-analyzer · 2026-06-25T07:40:11Z

The job test-various failed! Check out the build log: (web) (plain enhanced) (plain)

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

test [ui] tests/ui/limits/type-length-limit-enforcement.rs ... ok
test [ui] tests/ui/linkage-attr/unstable-flavor.rs#bpf ... ok
test [ui] tests/ui/linking/cdylib-no-mangle.rs ... ignored, only executed when the target vendor is Apple
test [ui] tests/ui/linkage-attr/unstable-flavor.rs#llbc ... ok
test [ui] tests/ui/linking/dll-weak-definition.rs#link_exe ... ignored, only executed when the target environment is msvc
test [ui] tests/ui/linking/dll-weak-definition.rs#lld ... ignored, ignored on targets without Rust's LLD
test [ui] tests/ui/linking/crate-type-invalid-flag-error.rs ... ok
test [ui] tests/ui/linking/executable-no-mangle-strip.rs ... ignored, ignored when the target family is wasm (wasm, for better or worse, exports all #[no_mangle])
test [ui] tests/ui/linking/export-executable-symbols.rs ... ignored, ignored when cross-compiling
test [ui] tests/ui/linking/ld64-cross-compilation.rs ... ignored, only executed when the target is x86_64-apple-darwin
test [ui] tests/ui/linking/link-self-contained-consistency.rs#many ... ok
---
test library/core/src/iter/mod.rs - iter (line 173) ... ok
test library/core/src/iter/mod.rs - iter (line 217) ... ok
test library/core/src/iter/mod.rs - iter (line 234) ... ok
test library/core/src/iter/mod.rs - iter (line 281) ... ok
Error: failed to run main module `/tmp/rustdoctestwL48hA/rust_out.wasm`

Caused by:
    0: failed to invoke command default
    1: error while executing at wasm backtrace:
    0: 0x3aaf9c - rust_out.wasm!abort
    1: 0x3a5c2d - rust_out.wasm!std[a9f54a7248b18c]::sys::pal::wasi::abort_internal
    2: 0x3a11c1 - rust_out.wasm!std[a9f54a7248b18c]::process::abort
    3: 0x3a1839 - rust_out.wasm!__rustc[f059b171a6379533]::__rust_abort
    4: 0x39f10b - rust_out.wasm!__rustc[f059b171a6379533]::__rust_start_panic
    5: 0x3a167e - rust_out.wasm!__rustc[f059b171a6379533]::rust_panic
    6: 0x3a07da - rust_out.wasm!std[a9f54a7248b18c]::panicking::panic_with_hook
    7: 0x3a02f0 - rust_out.wasm!std[a9f54a7248b18c]::panicking::panic_handler::{closure#0}
    8: 0x3a0258 - rust_out.wasm!std[a9f54a7248b18c]::sys::backtrace::__rust_end_short_backtrace::<std[a9f54a7248b18c]::panicking::panic_handler::{closure#0}, !>
    9: 0x3a191c - rust_out.wasm!__rustc[f059b171a6379533]::rust_begin_unwind
   10: 0x3b6c33 - rust_out.wasm!core[af6a84f9a41b2760]::panicking::panic_fmt
   11: 0x3befea - rust_out.wasm!core[af6a84f9a41b2760]::result::unwrap_failed
   12: 0x16cbe1 - rust_out.wasm!std[a9f54a7248b18c]::thread::functions::spawn::<doctest_bundle_2024[e5f05bfeb86a2296]::__doctest_758::main::{closure#0}, ()>
   13: 0x246eaf - rust_out.wasm!doctest_bundle_2024[e5f05bfeb86a2296]::__doctest_758::main
   14: 0x246f4f - rust_out.wasm!doctest_bundle_2024[e5f05bfeb86a2296]::__doctest_758::__main_fn
   15:  0x268b1 - rust_out.wasm!doctest_runner_2024[3f85b7bd688c354f]::__doctest_758::TEST::{closure#0}
   16:  0xe6c68 - rust_out.wasm!<doctest_runner_2024[3f85b7bd688c354f]::__doctest_758::TEST::{closure#0} as core[af6a84f9a41b2760]::ops::function::FnOnce<()>>::call_once
   17: 0x367dcd - rust_out.wasm!test[82f9d4560c36714a]::__rust_begin_short_backtrace::<core[af6a84f9a41b2760]::result::Result<(), alloc[1f88d17ad3be912f]::string::String>, fn() -> core[af6a84f9a41b2760]::result::Result<(), alloc[1f88d17ad3be912f]::string::String>>
   18: 0x37f581 - rust_out.wasm!<test[82f9d4560c36714a]::types::RunnableTest>::run
   19: 0x380929 - rust_out.wasm!test[82f9d4560c36714a]::run_test
note: using the `WASMTIME_BACKTRACE_DETAILS=1` environment variable may show more debugging information
    2: wasm trap: wasm `unreachable` instruction executed

Stack backtrace:
test library/core/src/iter/mod.rs - iter (line 299) ... ok
test library/core/src/iter/mod.rs - iter (line 322) ... ok
test library/core/src/iter/mod.rs - iter (line 329) ... ok
---
test library/core/src/iter/traits/iterator.rs - iter::traits::iterator::Iterator::take_while (line 1225) ... ok
test library/core/src/iter/traits/iterator.rs - iter::traits::iterator::Iterator::take_while (line 1241) ... ok
test library/core/src/iter/traits/iterator.rs - iter::traits::iterator::Iterator::try_fold (line 2435) ... ok
   0: wasmtime_internal_core::error::backtrace::capture
   1: <wasmtime_internal_core::error::error::Error as core::convert::From<E>>::from
   2: wasmtime::runtime::trap::from_runtime_box
   3: wasmtime::runtime::vm::traphandlers::catch_traps
   4: wasmtime::runtime::func::Func::call_unchecked_raw
   5: wasmtime::runtime::func::Func::call_impl_do_call
   6: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
   7: wasmtime_internal_fiber::unix::fiber_start
   8: wasmtime_internal_fiber::stackswitch::x86_64::wasmtime_fiber_start
   9: wasmtime_internal_fiber::Fiber<Resume,Yield,Return>::resume
  10: wasmtime::runtime::fiber::resume_fiber
  11: <wasmtime::runtime::fiber::FiberFuture as core::future::future::Future>::poll
  12: wasmtime_cli::commands::run::RunCommand::load_main_module::{{closure}}
  13: wasmtime_cli::commands::run::RunCommand::instantiate_and_run::{{closure}}
  14: wasmtime_cli::commands::run::RunCommand::execute::{{closure}}
  15: tokio::runtime::park::CachedParkThread::block_on
  16: tokio::runtime::runtime::Runtime::block_on
  17: wasmtime_cli::commands::run::RunCommand::execute
  18: wasmtime::main
  19: std::sys::backtrace::__rust_begin_short_backtrace
  20: std::rt::lang_start::{{closure}}
  21: std::rt::lang_start_internal
---
test library/core/src/time.rs - time::Duration::mul_f64 (line 1022) ... ok

failures:

---- library/core/src/keyword_docs.rs - become_keyword (line 1350) stdout ----
error: <unknown>:0:0: in function _RNvNvNvCsaZ5XgyRFL98_8rust_out4main53__doctest_main_library_core_src_keyword_docs_rs_1350_08dispatch i32 (ptr, i32, i32): WebAssembly 'tail-call' feature not enabled
       

error: aborting due to 1 previous error

Couldn't compile the test.

rust-bors · 2026-06-25T07:55:16Z

PR #158327, which is a member of this rollup, was unapproved.

This rollup was thus unapproved.

JonathanBrouwer · 2026-06-25T07:55:29Z

@bors try cancel

rust-bors · 2026-06-25T07:55:40Z

Try build cancelled. Cancelled workflows:

https://github.com/rust-lang/rust/actions/runs/28151766626

sandersaares and others added 30 commits May 11, 2026 15:37

autodiff: stop always needing an alloca

2f10fd2

There will still be one for things that aren't just scalars or scalar pairs.

codegen_ssa: multiply scalable vec size by vscale

cfc4211

When emitting a `memcpy` for a scalable vector, the size computed by rustc (`num_vectors * element_count * element_ty`), since rust-lang#157915, needs to be multiplied by `vscale`.

move typetree logic into a new file

b9d55eb

Limit splat AST and FnDecl to 255 args

e4bb0e1

And remove redundant const fn

Impl HIR FnSig for #[splat]

ade9fa3

Impl HIR typeck for #[splat]

cfd9e33

Remove a leftover direct call to fn_ctxt.label_generic_mismatches

ad77eda

Fix ICE in label_fn_like when splatted arg index is out of bounds

ac47723

Impl MIR lowering side-tables for #[splat]

c29f2db

Impl actual MIR lowering for #[splat]

4cb4e0c

Impl TypeInfo for splat

6c7c69c

Add UI tests for #[splat] unhappy path, generics, fn colors

c3593c1

- const, async, and unsafe functions - const generics, complex types, and where clauses (including impl Tuple)

Add failing test for #[splat] with dyn AsRef<T> where T: Tuple

28b3d02

Add splat UI tests for 255 splatted arg limit

b23bbed

UI test arg diffs greater than u8::MAX

9b44c23

Fix bug when rustdoc "go to only result" setting is not working as ex…

2262b8e

…pected"

simplify call chains, fix assertions

d9038db

refactor: move attribute and keywords docs files to core

1bfcfc6

fix references to std

f50c075

tidy fixes

e5d79ed

move batch

6f9f78c

bless batch

19f2cef

Fix MSVC drectve exports for decorated symbols

4051560

Include Item::const_stability info in rustdoc JSON.

f8973b7

fixup the refactoring errors in 156246

2625886

Rollup merge of rust-lang#158355 - jdonszelmann:fixuop, r=lcnr

7418fd5

Fixup the refactoring errors in rust-lang#156246 r? @lcnr

rust-bors Bot added the rollup A PR which is a rollup label Jun 25, 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 Jun 25, 2026

JonathanBrouwer mentioned this pull request Jun 25, 2026

Move attribute and keyword docs from std to core #158327

Open

rust-bors Bot added S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. and removed S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. labels Jun 25, 2026

JonathanBrouwer closed this Jun 25, 2026

rustbot removed the S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. label Jun 25, 2026

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Uh oh!

Uh oh!

Rollup of 17 pull requests#158389

Rollup of 17 pull requests#158389
JonathanBrouwer wants to merge 50 commits into
rust-lang:mainfrom
JonathanBrouwer:rollup-2sggIHu

JonathanBrouwer commented Jun 25, 2026 •

edited by rustbot

Loading

Uh oh!

JonathanBrouwer commented Jun 25, 2026

Uh oh!

rust-bors Bot commented Jun 25, 2026

Uh oh!

rust-bors Bot commented Jun 25, 2026 •

edited

Loading

Uh oh!

rust-log-analyzer commented Jun 25, 2026

Uh oh!

rust-bors Bot commented Jun 25, 2026

Uh oh!

JonathanBrouwer commented Jun 25, 2026

Uh oh!

rust-bors Bot commented Jun 25, 2026

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

20 participants

Uh oh!

Uh oh!

Conversation

JonathanBrouwer commented Jun 25, 2026 • edited by rustbot Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Uh oh!

JonathanBrouwer commented Jun 25, 2026

Uh oh!

rust-bors Bot commented Jun 25, 2026

Uh oh!

rust-bors Bot commented Jun 25, 2026 • edited Loading Uh oh! There was an error while loading. Please reload this page.

Uh oh!

Uh oh!

rust-log-analyzer commented Jun 25, 2026

Uh oh!

rust-bors Bot commented Jun 25, 2026

Uh oh!

JonathanBrouwer commented Jun 25, 2026

Uh oh!

rust-bors Bot commented Jun 25, 2026

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

Uh oh!

20 participants

JonathanBrouwer commented Jun 25, 2026 •

edited by rustbot

Loading

rust-bors Bot commented Jun 25, 2026 •

edited

Loading