Ensure io::Error's bitpacked repr doesn't accidentally impl UnwindSafe Sadly, I'm not sure how to easily test that we don't impl a trait, though (or can libstd use `where io::Error: !UnwindSafe` or something). Fixes #95203
Ensure io::Error's bitpacked repr doesn't accidentally impl UnwindSafe Sadly, I'm not sure how to easily test that we don't impl a trait, though (or can libstd use `where io::Error: !UnwindSafe` or something). Fixes #95203