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LLVM removed the size parameter from the lifetime format.
Tolerate not having that size parameter.
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This is a technically a breaking change for what can be parsed in
`#[cfg(false)]`.
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`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.
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`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.
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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.
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This reverts commit 289688ca494ddc45bcd0b0706dc173c19fbb7caa.
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Co-authored-by: zachs18 <8355914+zachs18@users.noreply.github.com>
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This will run all tests for `riscv64a23-unknown-linux-gnu` in a QEMU instance.
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To allow using zig-cc or similar as the compiler driver.
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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`.
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This is a documentation-only deprecation for now.
Over time, we can
- warn and then remove on use of unstable environment variables
- warn on use of stable environment variables (no plan to remove due to
compatibility)
Longer term, we expect test runners, like `cargo test`, to provide the
necessary mechanisms for environmental or persistent configuration (e.g.
using cargo config which supports `.cargo/config.toml` as well as
environment variables).
This would include:
- `RUST_TEST_THREADS`
- `RUST_TEST_NOCAPTURE`
- `RUST_TEST_SHUFFLE` (unstable)
- `RUST_TEST_SHUFFLE_SEED` (unstable)
The primary outcomes for this change are
- Reducing the scope of what is expected for custom test harnesses to
implement
- Reduce the mechanisms that test runners, like `cargo test`, are
expected to track when they are being bypassed to protect against
negative interactions, e.g. `RUST_TEST_NOCAPTURE=1` when json output
is being read.
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Reduce indentation and avoid needless checks (checking the target OS and
vendor is unnecessary).
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Rollup of 4 pull requests
Successful merges:
- rust-lang/rust#144966 ( Improve suggestion for "missing function argument" on multiline call)
- rust-lang/rust#145111 (remove some unused private trait impls)
- rust-lang/rust#145221 (Fix Cargo cross-compilation (take two))
- rust-lang/rust#145247 (Update `sysinfo` version to `0.37.0`)
r? `@ghost`
`@rustbot` modify labels: rollup
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see https://github.com/rust-lang/rust/pull/145253 for reference.
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Update
[actions/checkouts](https://github.com/actions/checkout?tab=readme-ov-file#usage)
to v5
changelog: none
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r? ghost
changelog: none
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They could easily get out of sync and miss some fields. Now all steps are instrumented automatically.
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When verbose mode is enabled, it is very hard to see the actually executed steps.
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So that it is easier to see which was the last started step when a failure happens on CI.
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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.
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Ship correct Cranelift library in its dist component
The first commit adds a post-dist UI test to check that Cranelift can be used with the extracted dist x64 Linux archive.
The original codegen copy logic in the Cranelift dist step was a bit redundant, and I didn't notice in https://github.com/rust-lang/rust/pull/144787 that it's copying the codegen backend from the build compiler's sysroot, rather than the target compiler's sysroot. The second commit modifies the logic to directly access the built codegen file (there is no need to search for it in the compiler's sysroot, in fact when you run just `x dist rustc_codegen_cranelift`, it shouldn't "taint" the sysroot with the codegen backend! Which it did before https://github.com/rust-lang/rust/pull/144787) and copy it to the tarball under a normalized name. Thus we get around any similar potential issues in the future, and make previously implicit logic more explicit.
This also fixes running just `x dist rustc_codegen_cranelift` without enabling `cranelift` in `rust.codegen-backends`, which should have been enabled by https://github.com/rust-lang/rust/pull/144787, but it didn't work fully, because the dist step tried to copy the codegen backend from the compiler's sysroot, but it didn't contain the codegen backend if it was not enabled by `rust.codegen-backends`.
Fixes: https://github.com/rust-lang/rust/issues/145201
try-job: dist-x86_64-linux
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`NamedValueStr`
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
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LL | #[used(compiler, linker)]
| ^^^^^^------------------^
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| expected a single argument here
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help: try changing it to one of the following valid forms of the attribute
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LL - #[used(compiler, linker)]
LL + #[used(compiler)]
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LL - #[used(compiler, linker)]
LL + #[used(linker)]
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LL - #[used(compiler, linker)]
LL + #[used]
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```
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
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LL | #[used(compiler, linker)]
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| expected a single argument here
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help: try changing it to one of the following valid forms of the attribute
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LL - #[used(compiler, linker)]
LL + #[used(compiler|linker)]
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LL - #[used(compiler, linker)]
LL + #[used]
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```
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