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`librustdoc` house-keeping 🧹
This PR mostly removes a bunch of crate-level attributes that were added at some point, but then later on became unnecessary:
- some `#[feature]` gates
- some `#[allow]`s
- a `#[recursion_limit]`
Then I went ahead and sprinkled some tidy sorting on the remaining attrs, and `Cargo.toml`.
Trying to give my anal retentiveness some peace of mind 😅
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Doc: clarify priority of lint level sources
This updates the rustc book to clearly document how conflicting lint configurations are resolved across different sources, including command-line flags, crate-level attributes, in-line attributes, and `--cap-lints`.
It also explains the special behavior of `forbid` and `force_warn`.
Fixes rust-lang/rust#124088
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Update cargo
7 commits in 409fed7dc1553d49cb9a8c0637d12d65571346ce..930b4f62cfcd1f0eabdb30a56d91bf6844b739bf
2025-06-23 15:55:04 +0000 to 2025-06-28 14:58:43 +0000
- Use a different lint for the `fix_only_once_for_duplicates` test (rust-lang/cargo#15713)
- chore: bump to 0.91.0; update changelog (rust-lang/cargo#15710)
- Add `http.proxy-cainfo` config for proxy certs (rust-lang/cargo#15374)
- chore(deps): update msrv (3 versions) to v1.86 (rust-lang/cargo#15709)
- chore(deps): update msrv (1 version) to v1.88 (rust-lang/cargo#15706)
- Rework `cargo-test-support` & `testsuite` to use `CARGO_BIN_EXE_*` for Cargo (rust-lang/cargo#15692)
- fix: Expand error messages around path dependency on `cargo package` and `cargo publish` (rust-lang/cargo#15705)
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Synced rust-analyzer configs
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Minor Documentation Improvements
---
## Description
- Fixed typos and improved clarity in comments and documentation.
---
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Add windows-gnullvm hosts to the manifest
I made a mistake testing https://github.com/rust-lang/rust/pull/140772 only with `rustup-toolchain-install-master` which doesn't care about the manifests.
This means windows-gnullvm self-hosting will have to wait one more release, unless this change is backported to beta and a new beta release is made, which doesn't seem worth the trouble.
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r=GuillaumeGomez
rustdoc: show attributes on enum variants
mostly for #[non_exhaustive]
unsure if there's any attributes we should take care to *not* include, it could use `render_code_attribute` and `is_non_exhaustive` instead, if that is a concern.
fixes rust-lang/rust#142599
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Skip unnecessary components in x64 try builds
We unnecessarily rebuild `wasm-component-ld`, `llvm-bitcode-linker` and Cranelift during the intermediate PGO builds several times times, which is unnecessarily and increases the duration of try builds. This PR also disables some unnecessary dist components.
r? `````@jieyouxu`````
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Insert checks for enum discriminants when debug assertions are enabled
Similar to the existing null-pointer and alignment checks, this checks for valid enum discriminants on creation of enums through unsafe transmutes. Essentially this sanitizes patterns like the following:
```rust
let val: MyEnum = unsafe { std::mem::transmute<u32, MyEnum>(42) };
```
An extension of this check will be done in a follow-up that explicitly sanitizes for extern enum values that come into Rust from e.g. C/C++.
This check is similar to Miri's capabilities of checking for valid construction of enum values.
This PR is inspired by saethlin@'s PR
https://github.com/rust-lang/rust/pull/104862. Thank you so much for keeping this code up and the detailed comments!
I also pair-programmed large parts of this together with vabr-g@.
r? `@saethlin`
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Explain where rdg changes should be submitted
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by default
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Signed-off-by: xizheyin <xizheyin@smail.nju.edu.cn>
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Rollup of 9 pull requests
Successful merges:
- rust-lang/rust#139858 (New const traits syntax)
- rust-lang/rust#140809 (Reduce special casing for the panic runtime)
- rust-lang/rust#142730 (suggest declaring modules when file found but module not defined)
- rust-lang/rust#142806 (Normalize before computing ConstArgHasType goal in new solver)
- rust-lang/rust#143046 (const validation: properly ignore zero-sized UnsafeCell)
- rust-lang/rust#143092 (const checks for lifetime-extended temporaries: avoid 'top-level scope' terminology)
- rust-lang/rust#143096 (tag_for_variant: properly pass TypingEnv)
- rust-lang/rust#143104 (hir_analysis: prohibit `dyn PointeeSized`)
- rust-lang/rust#143106 (gce: don't ICE on non-local const)
Failed merges:
- rust-lang/rust#143036 (Remove support for `dyn*` from the compiler)
r? `@ghost`
`@rustbot` modify labels: rollup
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Signed-off-by: Jonathan Brouwer <jonathantbrouwer@gmail.com>
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const validation: properly ignore zero-sized UnsafeCell
Fixes https://github.com/rust-lang/rust/issues/142948
r? `@oli-obk`
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Reduce special casing for the panic runtime
See the individual commits for more info.
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New const traits syntax
This PR only affects the AST and doesn't actually change anything semantically.
All occurrences of `~const` outside of libcore have been replaced by `[const]`. Within libcore we have to wait for rustfmt to be bumped in the bootstrap compiler. This will happen "automatically" (when rustfmt is run) during the bootstrap bump, as rustfmt converts `~const` into `[const]`. After this we can remove the `~const` support from the parser
Caveat discovered during impl: there is no legacy bare trait object recovery for `[const] Trait` as that snippet in type position goes down the slice /array parsing code and will error
r? ``@fee1-dead``
cc ``@nikomatsakis`` ``@traviscross`` ``@compiler-errors``
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Clippy subtree update
r? `@Manishearth`
Cargo.lock update due to version bump
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Add tracing to `InterpCx::layout_of()`
This PR adds tracing calls to `instantiate_from_frame_and_normalize_erasing_regions` and to `InterpCx::layout_of()`. The latter is done by shadowing `LayoutOf`'s trait method with an inherent method on `InterpCx`.
<details><summary>Previous attempt by overriding the `layout_of` query (includes downloadable `.diff` patch)</summary>
This PR is meant for Miri, but requires a few changes in `rustc` code, hence why it's here. It adds tracing capabilities to the `layout_of` function in `tcx` by overriding the `layout_of` query (under `local_providers`) with a wrapper that opens a tracing span and then calls the actual `layout_of`. To make this possible, I had to make `rustc_ty_utils::layout::layout_of` public. I added an assert to ensure the `providers.layout_of` value I am replacing is actually `rustc_ty_utils::layout::layout_of`, just in case.
I also considered taking the previous value in `providers.layout_of` and calling that one instead, to avoid making `layout_of` public. But then the closure would not be castable to a function pointer anymore (`providers.layout_of` is a function pointer), because it would depend on the local variable storing the previous value of `providers.layout_of`. Using a global variable would work but would rely on `unsafe` or on `Mutex`es, so I wanted to avoid it.
Here is some tracing output when Miri is run on `src/tools/miri/tests/pass/hello.rs`, visualizable in https://ui.perfetto.dev: [trace-1750338860374637.json](https://github.com/user-attachments/files/20820392/trace-1750338860374637.json)
Another place where I could have added tracing calls is to the `rustc_middle::ty::layout::LayoutCx` struct / `spanned_layout_of()` function, however there is no simple way to disable the tracing calls with compile-time boolean constants there (since `LayoutCx::new()` is used everywhere and referenced directly), and in any case it seems like `spanned_layout_of()` just calls `tcx.layout_of()` anyway. For completeness' sake, here is tracing output for when a tracing call is added to `spanned_layout_of()`: [trace-1750340887920584.json](https://github.com/user-attachments/files/20820609/trace-1750340887920584.json)
Patch to override `layout_of` query: [tracing-layout_of-query-override.diff.txt](https://github.com/user-attachments/files/20944497/tracing-layout_of-query-override.diff.txt)
</details>
**Note: obtaining tracing output depends on https://github.com/rust-lang/miri/pull/4406, but this PR is standalone and can be merged without waiting for https://github.com/rust-lang/miri/pull/4406.**
r? `@RalfJung`
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r=GuillaumeGomez
Rustdoc js: even more typechecking improvements
I noticed some oddities when I went to start working on type aliases, so I've gone and cleaned up a bunch of stuff. Notably `fullId` was nearly always an integer in practice, but tsc was being told it should be a string.
r? ``@notriddle``
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This makes the intent clear, and silences Clippy.
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clippy-subtree-update
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Signed-off-by: Hayashi Mikihiro <34ttrweoewiwe28@gmail.com>
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