thread 'main' ($TID) panicked at tests/panic/panic2.rs:LL:CC:
42-panicking from libstd
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
note: in Miri, you may have to set `MIRIFLAGS=-Zmiri-env-forward=RUST_BACKTRACE` for the environment variable to have an effect