thread 'main' panicked at 'assertion failed: `(left == right)` left: `2`, right: `4`', $DIR/test-panic-abort-nocapture.rs:31:5 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace thread 'main' panicked at 'assertion failed: `(left == right)` left: `2`, right: `4`', $DIR/test-panic-abort-nocapture.rs:25:5 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace testing321