implement clock_gettime on macos #2679
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Attempt to reuse `Vec<T>` backing storage for `Rc/Arc<[T]>` If a `Vec<T>` has sufficient capacity to store the inner `RcBox<[T]>`, we can just reuse the existing allocation and shift the elements up, instead of making a new allocation.
Support `#[track_caller]` on async fns Adds `#[track_caller]` to the generator that is created when we desugar the async fn. Fixes #78840 Open questions: - What is the performance impact of adding `#[track_caller]` to every `GenFuture`'s `poll(...)` function, even if it's unused (i.e., the parent span does not set `#[track_caller]`)? We might need to set it only conditionally, if the indirection causes overhead we don't want.
[watchos] Dynamic linking is not allowed for watchos targets Dynamic linking of all apple targets was (re-) enabled in PR #100636. However, dynamic linking is not allowed on WatchOS so this broke the build of standard library for WatchOS. This change disables dynamic linking for WatchOS non-simulator targets.
Remove allow(rustc::potential_query_instability) from rustc_ast_lowering Related to rust-lang/rust#84447. `@cjgillot` Thanks for helping me!
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implement clock_gettime on macos and pull in rustc changes so we can test this against rust-lang/rust#103594.
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and pull in rustc changes so we can test this against rust-lang/rust#103594.
Fixes #2664