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Zalathar
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@Zalathar Zalathar commented Aug 12, 2025

Successful merges:

r? @ghost
@rustbot modify labels: rollup

Create a similar rollup

notJoon and others added 30 commits August 10, 2025 22:50
_span could possibly be confused with the Span type in rustc
Use a time representation with 1900-01-01-00:00:00 at timezone -1440 min as
anchor. This is the earliest time supported in UEFI.

Signed-off-by: Ayush Singh <[email protected]>
Add tests to ensure that extream system times are still representable.

Signed-off-by: Ayush Singh <[email protected]>
…medValueStr`

Modify `AttributeTemplate` to support list of alternatives for list and name value attribute styles.

Suggestions now provide more correct suggested code:

```
error[E0805]: malformed `used` attribute input
  --> $DIR/used_with_multi_args.rs:3:1
   |
LL | #[used(compiler, linker)]
   | ^^^^^^------------------^
   |       |
   |       expected a single argument here
   |
help: try changing it to one of the following valid forms of the attribute
   |
LL - #[used(compiler, linker)]
LL + #[used(compiler)]
   |
LL - #[used(compiler, linker)]
LL + #[used(linker)]
   |
LL - #[used(compiler, linker)]
LL + #[used]
   |
```

instead of the prior "masking" of the lack of this feature by suggesting pipe-separated lists:

```
error[E0805]: malformed `used` attribute input
  --> $DIR/used_with_multi_args.rs:3:1
   |
LL | #[used(compiler, linker)]
   | ^^^^^^------------------^
   |       |
   |       expected a single argument here
   |
help: try changing it to one of the following valid forms of the attribute
   |
LL - #[used(compiler, linker)]
LL + #[used(compiler|linker)]
   |
LL - #[used(compiler, linker)]
LL + #[used]
   |
```
This commit amends the documentation of `Vec::as_mut_ptr` and
`Vec::into_raw_parts` to make it explicit that such calls may be paired
with calls to `dealloc` with a suitable layout. This guarantee was
effectively already provided by the docs of `Vec::from_raw_parts`
mentioning `alloc`.

Additionally, we copy-paste and adjust the “Memory layout” section from
the documentation of `std::boxed` to `std::vec`. This explains the allocator
guarantees in more detail.
Reduce indentation and avoid needless checks (checking the target OS and
vendor is unnecessary).
This is more in-line with what Apple's tooling expects, and allows us to
better support custom compiler drivers (such as certain Homebrew and
Nixpkgs compilers) that prefer their own `-isysroot` flag.

Effectively, we now invoke the compiler driver as-if it was invoked as
`xcrun -sdk $sdk_name $tool`.
To allow using zig-cc or similar as the compiler driver.
The exact reasoning why we do not always pass the SDK root when linking
on macOS eludes me, but I suspect it's because we want to support
compiler drivers which do not support the `-isysroot` option.

Since we now pass the SDK root via the environment variable SDKROOT,
compiler drivers that don't support it can just ignore it.

Similarly, since we only warn when xcrun fails, users that expect their
compiler driver to provide the SDK location can do so now.
`rustc` is going to change the desugaring of `assert!` to be

```rust
match condition {
    true => {}
    _ => panic!(),
}
```
which will make the edge-case of `condition` being `impl Not<Output = bool>`
while not being `bool` itself no longer a straightforward suggestion,
but `!!condition` will coerce the expression to be `bool`, so it can be
machine applicable.
This is a technically a breaking change for what can be parsed in
`#[cfg(false)]`.
@rustbot rustbot added A-run-make Area: port run-make Makefiles to rmake.rs A-rustc-dev-guide Area: rustc-dev-guide A-testsuite Area: The testsuite used to check the correctness of rustc O-apple Operating system: Apple (macOS, iOS, tvOS, visionOS, watchOS) O-unix Operating system: Unix-like S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) T-clippy Relevant to the Clippy team. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-infra Relevant to the infrastructure team, which will review and decide on the PR/issue. T-libs Relevant to the library team, which will review and decide on the PR/issue. T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue. T-rustdoc-frontend Relevant to the rustdoc-frontend team, which will review and decide on the web UI/UX output. rollup A PR which is a rollup labels Aug 12, 2025
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@bors r+ rollup=never p=5

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bors commented Aug 12, 2025

📌 Commit 3755901 has been approved by Zalathar

It is now in the queue for this repository.

@bors 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 Aug 12, 2025
@Zalathar
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Replacement for #145285, in an attempt to fast-track #145291. I ended up rolling up everything, because the other added PRs seemed pretty safe anyway.

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bors commented Aug 12, 2025

⌛ Testing commit 3755901 with merge 1c7121c...

bors added a commit that referenced this pull request Aug 12, 2025
Rollup of 17 pull requests

Successful merges:

 - #131477 (Apple: Always pass SDK root when linking with `cc`, and pass it via `SDKROOT` env var)
 - #139806 (std: sys: pal: uefi: Overhaul Time)
 - #144210 (std: thread: Return error if setting thread stack size fails)
 - #144386 (Extract TraitImplHeader in AST/HIR)
 - #144921 (Don't emit `rustdoc::broken_intra_doc_links` for GitHub-flavored Markdown admonitions like `[!NOTE]`)
 - #145155 (Port `#[allow_internal_unsafe]` to the new attribute system (attempt 2))
 - #145214 (fix: re-enable self-assignment)
 - #145216 (rustdoc: correct negative-to-implicit discriminant display)
 - #145238 (Tweak invalid builtin attribute output)
 - #145249 (Rename entered trace span variables from `_span` to  `_trace`)
 - #145251 (Support using #[unstable_feature_bound] on trait)
 - #145253 (Document compiler and stdlib in stage1 in `pr-check-2` CI job)
 - #145260 (Make explicit guarantees about `Vec`’s allocator)
 - #145263 (Update books)
 - #145273 (Account for new `assert!` desugaring in `!condition` suggestion)
 - #145283 (Make I-miscompile imply I-prioritize)
 - #145291 (bootstrap: Only warn about `rust.debug-assertions` if downloading rustc)

r? `@ghost`
`@rustbot` modify labels: rollup
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The job x86_64-gnu-aux failed! Check out the build log: (web) (plain enhanced) (plain)

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

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bors commented Aug 12, 2025

💔 Test failed - checks-actions

@bors bors added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. and removed S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. labels Aug 12, 2025
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This PR: #145299 want to make the CI pass, it fix the doctest.

@Zalathar Zalathar closed this Aug 12, 2025
@rustbot rustbot removed the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Aug 12, 2025
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A-attributes Area: Attributes (`#[…]`, `#![…]`) A-CI Area: Our Github Actions CI A-meta Area: Issues & PRs about the rust-lang/rust repository itself A-run-make Area: port run-make Makefiles to rmake.rs A-rustc-dev-guide Area: rustc-dev-guide A-testsuite Area: The testsuite used to check the correctness of rustc O-apple Operating system: Apple (macOS, iOS, tvOS, visionOS, watchOS) O-unix Operating system: Unix-like rollup A PR which is a rollup T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) T-clippy Relevant to the Clippy team. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-infra Relevant to the infrastructure team, which will review and decide on the PR/issue. T-libs Relevant to the library team, which will review and decide on the PR/issue. T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue. T-rustdoc-frontend Relevant to the rustdoc-frontend team, which will review and decide on the web UI/UX output.
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