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a707f40107
Enforce Copy bounds for repeat elements while considering lifetimes fixes https://github.com/rust-lang/rust/issues/95477 this is a breaking change in order to fix a soundness bug. Before this PR we only checked whether the repeat element type had an `impl Copy`, but not whether that impl also had the appropriate lifetimes. E.g. if the impl was for `YourType<'static>` and not a general `'a`, then copying any type other than a `'static` one should have been rejected, but wasn't. r? `@lcnr` |
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Cargo.toml |