Make RefMut Sync#2
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This is safe because a `&RefMut` cannot change the borrow flags. We cannot impl `Send` for `RefMut` because of `map_split()`; we cannot impl `Sync` for `Ref` because of `clone()`.
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…t-2, r=nikomatsakis Reduce false positives of tail-expr-drop-order from consumed values (attempt #2) r? `@nikomatsakis` Tracked by rust-lang#123739. Related to rust-lang#129864 but not replacing, yet. Related to rust-lang#130836. This is an implementation of the approach suggested in the [Zulip stream](https://rust-lang.zulipchat.com/#narrow/stream/213817-t-lang/topic/temporary.20drop.20order.20changes). A new MIR statement `BackwardsIncompatibleDrop` is added to the MIR syntax. The lint now works by inspecting possibly live move paths before at the `BackwardsIncompatibleDrop` location and the actual drop under the current edition, which should be one before Edition 2024 in practice.
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…=jieyouxu Rehome 30 `tests/ui/issues/` tests to other subdirectories under `tests/ui/` [#1 of Batch #2] Part of rust-lang#133895 Methodology: 1. Refer to the previously written `tests/ui/SUMMARY.md` 2. Find an appropriate category for the test, using the original issue thread and the test contents. 3. Add the issue URL at the bottom (not at the top, as that would mess up stderr line numbers) 4. Rename the tests to make their purpose clearer Inspired by the methodology that `@Kivooeo` was using. r? `@jieyouxu`
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…=jieyouxu Rehome 30 `tests/ui/issues/` tests to other subdirectories under `tests/ui/` [#2 of Batch #2] Part of rust-lang#133895 Methodology: 1. Refer to the previously written `tests/ui/SUMMARY.md` 2. Find an appropriate category for the test, using the original issue thread and the test contents. 3. Add the issue URL at the bottom (not at the top, as that would mess up stderr line numbers) 4. Rename the tests to make their purpose clearer Inspired by the methodology that `@Kivooeo` was using. r? `@jieyouxu`
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…r=jieyouxu Rehome 30 `tests/ui/issues/` tests to other subdirectories under `tests/ui/` [#3 of Batch #2] Part of rust-lang#133895 Methodology: 1. Refer to the previously written `tests/ui/SUMMARY.md` 2. Find an appropriate category for the test, using the original issue thread and the test contents. 3. Add the issue URL at the bottom (not at the top, as that would mess up stderr line numbers) 4. Rename the tests to make their purpose clearer Inspired by the methodology that `@Kivooeo` was using. r? `@jieyouxu`
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…r=jieyouxu Rehome 26 `tests/ui/issues/` tests to other subdirectories under `tests/ui/` [rust-lang#5 of Batch #2] Part of rust-lang#133895 Methodology: 1. Refer to the previously written `tests/ui/SUMMARY.md` 2. Find an appropriate category for the test, using the original issue thread and the test contents. 3. Add the issue URL at the bottom (not at the top, as that would mess up stderr line numbers) 4. Rename the tests to make their purpose clearer Inspired by the methodology that Kivooeo was using. r? ```@jieyouxu```
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This resulted in the following error for me:
error[E0464]: multiple candidates for `rlib` dependency `rustc_literal_escaper` found
--> clippy_dev/src/lib.rs:25:1
|
25 | extern crate rustc_literal_escaper;
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: candidate #1: /home/pkrones/.rustup/toolchains/nightly-2025-12-25-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_literal_escaper-4f30574e01c3dad1.rlib
= note: candidate #2: /home/pkrones/.rustup/toolchains/nightly-2025-12-25-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_literal_escaper-c8a0e29ad1040cee.rmeta
Other tools in the Rust repo also take that as an explicit dependency, like rust-analyzer or lint-docs.
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This is safe because a
&RefMutcannot change the borrow flags.We cannot impl
SendforRefMutbecause ofmap_split(); we cannot implSyncforRefbecause ofclone().This is insta-stable and needs a FCP.