mirror of
https://github.com/rust-lang/rust.git
synced 2025-10-04 11:17:04 +00:00

Switch `#[track_caller]` back to a no-op unless feature gate is enabled This patch fixes a regression, in which `#[track_caller]`, which was previously a no-op, was changed to actually turn on the behavior. This should instead only happen behind the `closure_track_caller` feature gate. Also, add a warning for the user to understand how their code will compile depending on the feature gate being turned on or not. Fixes #104588