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This repository was archived by the owner on May 28, 2025. It is now read-only.
Rollup merge of rust-lang#111654 - JoJoJet:unsafe-cell-from-mut-lib, r=joshtriplett
Add a conversion from `&mut T` to `&mut UnsafeCell<T>`
Provides a safe way of downgrading an exclusive reference into an alias-able `&UnsafeCell<T>` reference.
ACP: rust-lang/libs-team#198.
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