Chris Denton 55f93265f0 Rollup merge of #138939 - SabrinaJewson:arc-is-unique, r=tgross35 ... Add `Arc::is_unique` Adds ```rs impl<T> Arc<T> { pub fn is_unique(this: &Self) -> bool; } ``` Tracking issue: #138938 ACP: https://github.com/rust-lang/libs-team/issues/560		2025-04-28 01:58:48 +00:00
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src	Rollup merge of #138939 - SabrinaJewson:arc-is-unique, r=tgross35	2025-04-28 01:58:48 +00:00
Cargo.toml	Update compiler_builtins to 0.1.156	2025-04-22 05:46:51 +00:00