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this is technically possible if someone sticks rustdoc in
an iframe, i think?
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Update cargo
22 commits in 2622e844bc1e2e6123e54e94e4706f7b6195ce3d..ab1463d632528e39daf35f263e10c14cbe590ce8
2025-02-28 12:33:57 +0000 to 2025-03-08 01:45:05 +0000
- test: redact host target when comparing CARGO_ENV path (rust-lang/cargo#15279)
- feat: add completions for install --path (rust-lang/cargo#15266)
- fix(package): report lockfile / workspace manifest is dirty (rust-lang/cargo#15276)
- feat(tree): Add `--depth public` behind `-Zunstable-options` (rust-lang/cargo#15243)
- Don't use `$CARGO_BUILD_TARGET` in `cargo metadata` (rust-lang/cargo#15271)
- feat: show extra build description from bootstrap (rust-lang/cargo#15269)
- Upgrade to `rustc-stable-hash v0.1.2` (rust-lang/cargo#15268)
- fix: Respect --frozen everywhere --offline or --locked is accepted (rust-lang/cargo#15263)
- feat(tree): Color the output (rust-lang/cargo#15242)
- fix(vendor): dont remove non-cached source (rust-lang/cargo#15260)
- docs: lockfile is always included since 1.84 (rust-lang/cargo#15257)
- Remove `Cargo.toml` from `package.include` in example (rust-lang/cargo#15253)
- Small cleanup: remove unneeded result (rust-lang/cargo#15256)
- Fix typo in build-scripts.md (rust-lang/cargo#15254)
- chore(deps): update rust crate pulldown-cmark to 0.13.0 (rust-lang/cargo#15250)
- chore(deps): update compatible (rust-lang/cargo#15249)
- feat(cli): forward bash completions of third party subcommands (rust-lang/cargo#15247)
- feat: add completions for `--lockfile-path` (rust-lang/cargo#15238)
- fix: reset $CARGO if the running program is real `cargo[.exe]` (rust-lang/cargo#15208)
- Get all members as `available targets` even though default-members was specified. (rust-lang/cargo#15199)
- refactor: control byte display precision with std::fmt options (rust-lang/cargo#15246)
- fix(package): Ensure we can package directories ending with '.rs' (rust-lang/cargo#15240)
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std: move stdio to `sys`
As per #117276, this moves the platform definitions of `Stdout` and friends into `sys`. This PR also unifies the UNIX and Hermit implementations and moves the `__rust_print_err` function needed by libunwind on SGX into the dedicated module for such helper functions.
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r=fmease,GuillaumeGomez
doctests: fix merging on stable
Fixes #137898
The generated multi-test harness relies on nightly-only APIs, so the only way to run it on stable is to enable them.
To prevent the executing test case from getting at any of the stuff that the harness uses, they're built as two separate crates. The test bundle isn't built with RUSTC_BOOTSTRAP, while the runner harness is.
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This prevents the included test case from getting at nightly-only
features when run on stable. The harness builds with
RUSTC_BOOTSTRAP, but the bundle doesn't.
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Fixes #137898
The generated multi-test harness relies on nightly-only APIs,
so the only way to run it on stable is to enable them. Since
tests that use crate attrs don't be merged, there's no way to use
nightly-only features on it anyway.
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As per #117276, this moves the platform definitions of `Stdout` and friends into `sys`. This PR also unifies the UNIX and Hermit implementations and moves the `__rust_print_err` function needed by libunwind on SGX into the dedicated module for such helper functions.
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Always inline `query_get_at`.
r? `@saethlin`
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Rollup of 7 pull requests
Successful merges:
- #122790 (Apply dllimport in ThinLTO)
- #137650 (Move `fs` into `sys`)
- #138228 (Use `disjoint_bitor` inside `borrowing_sub`)
- #138233 (Windows: Don't link std (and run-make) against advapi32, except on win7)
- #138253 (Continue to check attr if meet empty repr for adt)
- #138263 (Fix `repr128-dwarf` test)
- #138276 (Lazy load NtOpenFile for UWP)
r? `@ghost`
`@rustbot` modify labels: rollup
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Lazy load NtOpenFile for UWP
Lazily load `NtOpenFile` to allow libraries targeting UWP to build and link.
Fixes #138257 .
r? `@ChrisDenton`
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Fix `repr128-dwarf` test
The test now correctly ignores enums from `std`.
Fixes #138254
Unblocks #138200
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Continue to check attr if meet empty repr for adt
Fixes #138241
Returning while checking ReprEmpty results in missing the check for the next repr
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Windows: Don't link std (and run-make) against advapi32, except on win7
Std no longer depends on any functionality provided by advapi32, so we can remove it from the list of external libraries we link against. Except, the win7 targets do still rely on advapi32-provided functionality. This PR therefore moves linking against it to only occur on win7 targets, so that no new uses of it slip in without being noticed.
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Use `disjoint_bitor` inside `borrowing_sub`
This makes the definition of `borrowing_sub` consistent with that of `carrying_add`.
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Move `fs` into `sys`
Move platform definitions of `fs` into `std::sys`, as part of https://github.com/rust-lang/rust/issues/117276.
cc `@joboet`
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Apply dllimport in ThinLTO
This partially reverts https://github.com/rust-lang/rust/pull/103353 by properly applying `dllimport` if `-Z dylib-lto` is passed. That PR should probably fully be reverted as it looks quite sketchy. We don't know locally if the entire crate graph would be statically linked.
This should hopefully be sufficient to make ThinLTO work for rustc on Windows.
r? ``@wesleywiser``
---
Edit: This PR is changed to just generally revert https://github.com/rust-lang/rust/pull/103353.
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Split the `Edges` iterator.
Some nice performance wins here, mostly on the `wg-grammar` benchmark.
r? `@lcnr`
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Rollup of 12 pull requests
Successful merges:
- #136127 (Allow `*const W<dyn A> -> *const dyn A` ptr cast)
- #136968 (Turn order dependent trait objects future incompat warning into a hard error)
- #137319 (Stabilize `const_vec_string_slice`)
- #137885 (tidy: add triagebot checks)
- #138040 (compiler: Use `size_of` from the prelude instead of imported)
- #138084 (Use workspace lints for crates in `compiler/`)
- #138158 (Move more layouting logic to `rustc_abi`)
- #138160 (depend more on attr_data_structures and move find_attr! there)
- #138192 (crashes: couple more tests)
- #138216 (bootstrap: Fix stack printing when a step cycle is detected)
- #138232 (Reduce verbosity of GCC build log)
- #138242 (Revert "Don't test new error messages with the stage 0 compiler")
r? `@ghost`
`@rustbot` modify labels: rollup
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Revert "Don't test new error messages with the stage 0 compiler"
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Reduce verbosity of GCC build log
It was a bit too spammy before.
Fixes: https://github.com/rust-lang/rust/issues/138213
r? ``@GuillaumeGomez``
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bootstrap: Fix stack printing when a step cycle is detected
When bootstrap detects a step dependency cycle (which represents a bootstrap bug), it is supposed to print out the contents of the step stack as part of its panic message.
However, while investigating #138205 it was found that bootstrap was actually printing out several copies of `Any { .. }`, because that is the Debug implementation for `dyn Any`. This is sadly not very helpful.
This PR fixes that problem by introducing a `trait AnyDebug: Any + Debug` that delegates to the underlying type's Debug implementation, while still allowing downcasting via Any.
---
The fixed behaviour can be verified manually (and is tested automatically) via a new dummy command, `./x run cyclic-step`:
```
$ x run cyclic-step
Building bootstrap
Finished `dev` profile [unoptimized] target(s) in 0.02s
thread 'main' panicked at src/bootstrap/src/core/builder/mod.rs:1521:17:
Cycle in build detected when adding CyclicStep { n: 0 }
CyclicStep { n: 0 }
CyclicStep { n: 1 }
CyclicStep { n: 2 }
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
Build completed unsuccessfully in 0:00:00
```
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crashes: couple more tests
try-job: aarch64-apple
try-job: x86_64-msvc-1
try-job: x86_64-gnu
try-job: dist-i586-gnu-i586-i686-musl
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depend more on attr_data_structures and move find_attr! there
r? ``@oli-obk``
This should be an easy one. It just moves some imports around. This is necessary for other changes that I'm working on not to have import cycles. However, it's an easy one to just merge on its own.
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Move more layouting logic to `rustc_abi`
Move all `LayoutData`-constructing code to `rustc_abi`:
- Infaillible operations get a new `LayoutData` constructor method;
- Faillible ones get a new method on `LayoutCalculator`.
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Use workspace lints for crates in `compiler/`
This is nicer and hopefully less error prone than specifying lints via bootstrap.
r? ``@jieyouxu``
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r=compiler-errors
compiler: Use `size_of` from the prelude instead of imported
Use `std::mem::{size_of, size_of_val, align_of, align_of_val}` from the prelude instead of importing or qualifying them. Apply this change across the compiler.
These functions were added to all preludes in Rust 1.80.
r? ``@compiler-errors``
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tidy: add triagebot checks
Validates triagebot.toml to have existing paths:
`[mentions."*"]` sections, i.e.
```toml
[mentions."compiler/rustc_const_eval/src/"]
```
or
```toml
[assign.owners]
"/.github/workflows" = ["infra-ci"]
```
or
```toml
trigger_files = [
"src/librustdoc/html/static/js/search.js",
"tests/rustdoc-js",
"tests/rustdoc-js-std",
]
```
Looked at #137876 and implemented check.
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Stabilize `const_vec_string_slice`
This feature was approved for stabilization in
https://github.com/rust-lang/rust/issues/129041#issuecomment-2508940661 so this change stabilizes it.
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Turn order dependent trait objects future incompat warning into a hard error
fixes #56484
r? ``@ghost``
will FCP when we have a crater result
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Allow `*const W<dyn A> -> *const dyn A` ptr cast
Followup of https://github.com/rust-lang/rust/pull/120248#discussion_r1487936000.
This PR allows casting pointers from something wrapping a trait object, to the trait object, i.e. `*const W<dyn A> -> *const dyn A` where `W` is `struct W<T: ?Sized>(T);`.
r? compiler-errors
Fixes https://github.com/rust-lang/rust/issues/128625
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Change TaskDeps to start preallocated with 128 capacity
This is a tiny change that makes `TaskDeps::read_set` start preallocated with capacity for 128 elements.
From local profiling, it looks like `TaskDeps::read_set` is one of the most-often resized hash-sets in `rustc`.
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add `tool::CargoClippy` and `tool::Cargofmt` binary to target sysroot
When running `x build clippy`, we expect `stage1-tool-bin/cargo-clippy` and `stage2/bin/cargo-clippy` to be the same, but they aren't. This happens because `tool::CargoClippy` doesn't place its binary in the `stage2` directory. As a result, `stage1-tool-bin/cargo-clippy` comes from `tool::CargoClippy`, while `stage2/bin/cargo-clippy` comes from `tool::Cargo`. Same applies for `tool::Cargofmt`.
This PR fixes the issue by adding `tool::CargoClippy` and ``tool::Cargofmt`` binaries to the expected sysroot and makes sure both directories share the same binary.
To test this, run `x build --stage 2 compiler clippy rustfmt`, link the stage2 sysroot with rustup, and then call `cargo +stage2 fmt` and `cargo +stage2 clippy` on any rust project (it wouldn't work without this PR).
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Don't re-`assume` in `transmute`s that don't change niches
I noticed in nightly 2025-02-21 that `transmute` is emitting way more `assume`s than necessary for newtypes.
For example, the three transmutes in <https://rust.godbolt.org/z/fW1KaTc4o> emits
```rust
define noundef range(i32 1, 0) i32 `@repeatedly_transparent_transmute(i32` noundef range(i32 1, 0) %_1) unnamed_addr {
start:
%0 = sub i32 %_1, 1
%1 = icmp ule i32 %0, -2
call void `@llvm.assume(i1` %1)
%2 = sub i32 %_1, 1
%3 = icmp ule i32 %2, -2
call void `@llvm.assume(i1` %3)
%4 = sub i32 %_1, 1
%5 = icmp ule i32 %4, -2
call void `@llvm.assume(i1` %5)
%6 = sub i32 %_1, 1
%7 = icmp ule i32 %6, -2
call void `@llvm.assume(i1` %7)
%8 = sub i32 %_1, 1
%9 = icmp ule i32 %8, -2
call void `@llvm.assume(i1` %9)
%10 = sub i32 %_1, 1
%11 = icmp ule i32 %10, -2
call void `@llvm.assume(i1` %11)
ret i32 %_1
}
```
But those are all just newtypes that don't change size or niches, so none of it's needed.
After this PR it's down to just
```rust
define noundef range(i32 1, 0) i32 `@repeatedly_transparent_transmute(i32` noundef range(i32 1, 0) %_1) unnamed_addr {
start:
ret i32 %_1
}
```
because none of those `assume`s in the original actually did anything.
(Transmuting to something with a difference niche, though, still has the assumes -- the other tests continue to pass checking that.)
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Don't include global asm in `mir_keys`, fix error body synthesis
r? oli-obk
Fixes #137470
Fixes #137471
Fixes #137472
Fixes #137473
try-job: test-various
try-job: x86_64-apple-2
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This reverts commit ae428141f7b99511e327ad28daf988978a376d86.
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Use `trunc nuw`+`br` for 0/1 branches even in optimized builds
Rather than needing to use `switch` for them to include the `unreachable` arm.
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