``` ---- [ui] tests/ui/panics/default-backtrace-ice.rs stdout ---- diff of stderr: 7 8 aborting due to `-Z treat-err-as-bug=1` - (end_short_backtrace) 11 (begin_short_backtrace) 12 (end_short_backtrace) 13 (begin_short_backtrace) --- ``` The error has been seen on x86_64-apple-2 and on i686-mingw so far. The test was last touched in #111052, cc @nnethercote https://github.com/rust-lang/rust/pull/114465#issuecomment-1665919855 https://github.com/rust-lang/rust/pull/115645#issuecomment-1710638960 https://github.com/rust-lang/rust/pull/116548#issuecomment-1754072458 https://github.com/rust-lang/rust/pull/115927#issuecomment-1723260809 https://github.com/rust-lang/rust/pull/116530#issuecomment-1752660181 https://github.com/rust-lang/rust/pull/116527#issuecomment-1752347408 https://github.com/rust-lang/rust/pull/109882#issuecomment-1752572158 https://github.com/rust-lang/rust/pull/116915#issuecomment-1837719134