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... but the function name is specified in the arguments, see https://github.com/rust-lang/miri/pull/4452#discussion_r2204958019
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Includes a custom syntax shortand to enter_trace_span! with NAME::SUBNAME.
MaybeEnteredTraceSpan is `pub use`d in lib.rs to make it available also in bin/, just in case.
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Update books
## rust-lang/book
3 commits in ef1ce8f87a8b18feb1b6a9cf9a4939a79bde6795..b2d1a0821e12a676b496d61891b8e3d374a8e832
2025-07-08 17:24:41 UTC to 2025-07-02 21:30:57 UTC
- Chapter 16 from tech review (rust-lang/book#4438)
- WIP ch 17 edits after tech review (rust-lang/book#4319)
- Chapter 15 from tech review (rust-lang/book#4433)
## rust-embedded/book
1 commits in 41f688a598a5022b749e23d37f3c524f6a0b28e1..fe88fbb68391a465680dd91109f0a151a1676f3e
2025-07-08 18:54:25 UTC to 2025-07-08 18:54:25 UTC
- Clarify usage of #[interrupt] attribute and recommend device crate re… (rust-embedded/book#386)
## rust-lang/nomicon
3 commits in 8b61acfaea822e9ac926190bc8f15791c33336e8..3ff384320598bbe8d8cfe5cb8f18f78a3a3e6b15
2025-07-05 07:34:22 UTC to 2025-07-05 07:13:51 UTC
- Add build script part to FFI chapter for more clear and smooth learn … (rust-lang/nomicon#440)
- Cleanups for tree example of splitting borrows (rust-lang/nomicon#443)
- Handle drop zst (rust-lang/nomicon#425)
## rust-lang/reference
17 commits in e9fc99f107840813916f62e16b3f6d9556e1f2d8..1f45bd41fa6c17b7c048ed6bfe5f168c4311206a
2025-07-11 23:15:51 UTC to 2025-07-01 16:49:33 UTC
- mention an important use for the naked attribute (rust-lang/reference#1929)
- Array expression repeat operands can be const blocks. (rust-lang/reference#1928)
- Document (tuple) struct pattern namespace behavior (rust-lang/reference#1925)
- Replace set of en dashes with set of em dashes (rust-lang/reference#1926)
- Update `should_panic` to use the attribute template (rust-lang/reference#1882)
- const-eval.const-expr.borrows: mention indirect places (rust-lang/reference#1865)
- associated-items.md: remove redundant word (rust-lang/reference#1874)
- introduction.md: replace hard-to-read example (rust-lang/reference#1873)
- typo (rust-lang/reference#1924)
- Update `ignore` to use the attribute template (rust-lang/reference#1881)
- Update `test` to use the attribute template (rust-lang/reference#1880)
- Update `cfg_attr` to use the attribute template (rust-lang/reference#1879)
- Update `cfg` to use the attribute template (rust-lang/reference#1878)
- allow constants to refer to mutable/external memory, but reject such constants as patterns (rust-lang/reference#1859)
- Remove outdated comment about non-copy unions (rust-lang/reference#1872)
- Add a template for documenting attributes (rust-lang/reference#1877)
- Switch enum grammar to use "variant" (rust-lang/reference#1876)
## rust-lang/rust-by-example
1 commits in 288b4e4948add43f387cad35adc7b1c54ca6fe12..e386be5f44af711854207c11fdd61bb576270b04
2025-07-04 23:17:15 UTC to 2025-07-04 23:17:15 UTC
- Update Chinese translations (rust-lang/rust-by-example#1943)
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Recover and suggest to use `;` to construct array type
Fixes rust-lang/rust#143828
r? compiler
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Adjust `run_make_support::symbols` helpers
Massage the `symbols` helpers to fill out {match all, match any} x {substring match, exact match}:
| | Substring match | Exact match |
|-----------|----------------------------------------|-------------------------------|
| Match any | `object_contains_any_symbol_substring` | `object_contains_any_symbol` |
| Match all | `object_contains_all_symbol_substring` | `object_contains_all_symbols` |
As I'd like to use `object_contains_all_symbols` for rust-lang/rust#143669.
As part of this:
- Rename `any_symbol_contains` to `object_contains_any_symbol_substring` for accuracy, as `any_symbol_contains` is actually "contains any matching substring".
- Remove `with_symbol_iter`.
Noticed while working on https://github.com/rust-lang/rust/pull/143669.
r? ``@ChrisDenton`` (or compiler)
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Don't panic if WASI_SDK_PATH not set when detecting compiler
The fedora packaging builds the wasm sysroot outside of the rust build system. Fedora applies a couple of patches related to wasm which I think make this possible. Not panicking seems consistent with the detection logic of other targets when they cannot find cc.
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Drop `./x suggest`
This PR removes the current `./x suggest` implementation (rust-lang/rust#109933, rust-lang/rust#106249) and associated docs for several reasons:
1. Primarily, `./x suggest` is another "flow" in bootstrap that incurs extra complexity and more invariants that bootstrap has to maintain. This causes more friction when trying to investigate and fix staging problems. As far as I know, this flow has not been actively maintained in quite a while, and I'm not aware of interest in maintaining it. Bootstrap really could use less implementation complexity with a very limited maintenance bandwidth.
2. The current `./x suggest` implementation "bypasses" the usual stage defaults for the various check/build/test/etc. flows, and it's not really possible to have a stage default because `./x suggest --run` produces a *sequence* of suggestions like [`./x check`, `./x test library/std`, ..] and then tries to run all of them in sequence, based on which files are modified.
3. We've not seen a lot of interest both in using it or extending static/dynamic test suggestions. Last extensions were rust-lang/rust#117961 and rust-lang/rust#120763. I'm not convinced the extra implementation complexity is worth it. This was discussed in:
- [#t-infra/bootstrap > Dropping the current `./x suggest` flow implementation](https://rust-lang.zulipchat.com/#narrow/channel/326414-t-infra.2Fbootstrap/topic/Dropping.20the.20current.20.60.2E.2Fx.20suggest.60.20flow.20implementation/with/527456699)
- [#t-compiler > Dropping current `./x suggest` implementation](https://rust-lang.zulipchat.com/#narrow/channel/131828-t-compiler/topic/Dropping.20current.20.60.2E.2Fx.20suggest.60.20implementation/with/527528696)
Closes rust-lang/rust#109933 (the current implementation is being removed).
Closes rust-lang/rust#143569 (by removing `./x suggest` altogether).
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r=workingjubilee,fmease,jieyouxu
tests: Fix duplicated-path-in-error fail with musl
musl's dlopen returns a different error than glibc, which contains the name of the file. This would cause the test to fail, since the filename would appear twice in the output (once in the error from rustc, once in the error message from musl). Split the expected test outputs for the different libc implementations.
Fixes rust-lang/rust#128474
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Signed-off-by: xizheyin <xizheyin@smail.nju.edu.cn>
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Changelog: https://github.com/rust-lang/mdBook/blob/master/CHANGELOG.md#mdbook-0452
This primarily picks up a few fixes.
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tweak some git clone commands
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We should not only in type position.
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They are not always needed when building std, as is the case when
packaging on Fedora. Panic if building from CI, but warn otherwise.
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Clippy subtree update
r? `@Manishearth`
Cargo.lock update due to `ui_test` bump and restructure.
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This is quite a bit of implementation complexity, yet it is quite
broken, and we don't have the maintenance bandwidth to address.
Remove the current implementation if only to reduce bootstrap's
implementation complexity; the `suggest` flow comes with its own set of
hacks.
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musl's dlopen returns a different error than glibc, which contains the
name of the file. This would cause the test to fail, since the filename
would appear twice in the output (once in the error from rustc, once in
the error message from musl). Split the expected test outputs for the
different libc implementations.
Signed-off-by: Jens Reidel <adrian@travitia.xyz>
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[COMPILETEST-UNTANGLE 6/N] Use `TestSuite` enum instead of stringly-typed test suites
This is part of a patch series to untangle `compiletest` to hopefully nudge it towards being more maintainable.
This PR should contain no functional changes.
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Rename `stable_mir` and `rustc_smir`
This PR only renames the two crate names.
There is no doubt that we want to rename `stable_mir` to `rustc_public`, while it hasn't been discussed yet that what the new name for `rustc_smir` should be.
This PR proposes a new name for `rustc_smir`, that is `rustc_public_shim`, since `rustc_smir` now is mostly a proxy to do calls to rustc queries and the public API of rustc that is invoked by the `rustc_public` crate.
However, I don't think that name is good enough. I hope there would be a way better name.
r? `@oli-obk`
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Updates to random number generation APIs
Updates based on discussions about random number generation.
- Add comment on `RandomSource::fill_bytes` about multiple calls, to allow
efficient implementations for random sources that generate a word at a time.
- Drop the `Random` trait in favor of `Distribution<T>`, which will let people
make calls like random(1..=6), and which allows for future expansion to
non-uniform distributions, as well as floating-point. (For now, this is only
implemented for `RangeFull`, to get the interface in place. Subsequent PRs
will implement it for other range types.)
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Key changes include:
- Removal of the word "syntax" from the lint message. More accurately,
it could have been something like "syntax group" or "syntax
category", but avoiding it completely is easier.
- The primary lint message now reflects exactly which mismatch is
occurring, instead of trying to be general. A new `help` line is
general across the mismatch kinds.
- Suggestions have been reduced to be more minimal, no longer also
changing non-idiomatic but unrelated aspects.
- Suggestion text no longer mentions changes when those changes don't
occur in that specific suggestion.
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Rollup of 10 pull requests
Successful merges:
- rust-lang/rust#143217 (Port #[link_ordinal] to the new attribute parsing infrastructure)
- rust-lang/rust#143681 (bootstrap/miri: avoid rebuilds for test builds)
- rust-lang/rust#143724 (Tidy cleanup)
- rust-lang/rust#143733 (Change bootstrap's `tool.TOOL_NAME.features` to work on any subcommand)
- rust-lang/rust#143850 (Compiletest: Simplify {Html,Json}DocCk directive handling)
- rust-lang/rust#143875 (update issue number for `const_trait_impl`)
- rust-lang/rust#143881 (Use zero for initialized Once state)
- rust-lang/rust#143887 (Run bootstrap tests sooner in the `x test` pipeline)
- rust-lang/rust#143917 (Change "allocated object" to "allocation".)
- rust-lang/rust#143918 (Tier check cleanup)
r? `@ghost`
`@rustbot` modify labels: rollup
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Tier check cleanup
clippy cleanup + edition 2024
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Run bootstrap tests sooner in the `x test` pipeline
With the recently added bootstrap snapshot tests, and in general with our plans to test more things in bootstrap, I feel like the original comment isn't accurate anymore. Recently, on several occasions I had to wait for 40+ minutes of CI just to find out that the bootstrap snapshot tests have failed. I think we should run bootstrap tests towards the beginning instead now.
r? ```@jieyouxu```
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update issue number for `const_trait_impl`
r? project-const-traits
cc rust-lang/rust#67792 rust-lang/rust#143874
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Compiletest: Simplify {Html,Json}DocCk directive handling
So much more maintainable and extensible.
r? ````@jieyouxu```` as discussed
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Change bootstrap's `tool.TOOL_NAME.features` to work on any subcommand
This is a followup to rust-lang/rust#142379 to make the bootstrap option `tool.TOOL_NAME.features` work on any subcommand instead of just build (so also run/test/...). I also made the `TOOL_NAME` comparisons look at the tool path instead of the tool name to determine to which tool a `TOOL_NAME` refers to, so you can specify tools by path like in other places of the bootstrap (e.g. `tool."tools/miri".features`).
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Tidy cleanup
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bootstrap/miri: avoid rebuilds for test builds
When building Miri in its own repo, we always build with `--all-targets`:
https://github.com/rust-lang/rust/blob/a00961269107703772c4e8f071f0accbe0f1a7e5/src/tools/miri/miri-script/src/util.rs#L167-L174
This saves a bunch of time since some of Miri's dependencies get more features enabled by some of Miri's dev-dependencies, and they all get built twice otherwise if you do `cargo build && cargo test` (which is typically what you end up doing inside `./miri test` and also inside `./x test miri`).
This applies the same approach to bootstrap, drastically reducing the edit-compile cycle for Miri work here. :)
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Update LLVM to 20.1.8
I made a new branch with patches that aren't yet in LLVM 20.1.8.
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Remove `ConstParam::remove_default` and `TypeParam::remove_default` to migrate from ted
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