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New lint: borrow_mutable_copy#13984

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samueltardieu:push-kpvspntvlrtr
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New lint: borrow_mutable_copy#13984
samueltardieu wants to merge 1 commit into
rust-lang:masterfrom
samueltardieu:push-kpvspntvlrtr

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@samueltardieu samueltardieu commented Jan 11, 2025

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This detects when the result of a block, with a Copy type, is borrowed mutably. The user might not be aware that using a block will borrow a copy instead of the value expression itself.

changelog: [borrow_mutable_copy]: new lint

Close #13967

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rustbot commented Jan 11, 2025

r? @blyxyas

rustbot has assigned @blyxyas.
They will have a look at your PR within the next two weeks and either review your PR or reassign to another reviewer.

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@rustbot rustbot added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties label Jan 11, 2025
@samueltardieu samueltardieu force-pushed the push-kpvspntvlrtr branch 2 times, most recently from a881f75 to 1ac5de7 Compare January 12, 2025 08:37
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Rebased

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Rebased

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r? @Clippy

@rustbot rustbot assigned flip1995 and unassigned blyxyas Jan 31, 2025
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Rebased

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Rebased

Comment thread tests/ui/needless_borrow.rs
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@flip1995 Anything else needs to be done?

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I guess the FCP on Zulip. Feel free to start that :)

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@samueltardieu samueltardieu force-pushed the push-kpvspntvlrtr branch 2 times, most recently from 410fe93 to b0e27cc Compare February 28, 2025 14:15
Comment thread clippy_config/src/conf.rs Outdated
@samueltardieu samueltardieu force-pushed the push-kpvspntvlrtr branch 4 times, most recently from eac9c71 to 5309578 Compare March 25, 2025 21:58
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rustbot commented Apr 15, 2026

This PR was rebased onto a different master commit. Here's a range-diff highlighting what actually changed.

Rebasing is a normal part of keeping PRs up to date, so no action is needed—this note is just to help reviewers.

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rustbot commented Apr 24, 2026

☔ The latest upstream changes (possibly #16025) made this pull request unmergeable. Please resolve the merge conflicts.

@samueltardieu samueltardieu deleted the push-kpvspntvlrtr branch May 3, 2026 08:16
@rustbot rustbot removed the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties label May 3, 2026
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reborrow or copy-then-borrow

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