| thread 'main' panicked at RUSTLIB/std/src/alloc.rs:LL:CC: | |
| memory allocation of 4 bytes failed | |
| 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 | |
| yes we are unwinding! |