Podman 5.1.0+ documentation states that Rosetta is "enabled by default" on Apple Silicon Macs. However, the configuration flag (Rosetta: true in podman machine inspect) can show as enabled while Rosetta is not actually working. This silent failure causes x86_64 containers to fall back to QEMU user-mode emulation, which crashes during memory-intensive workloads like Rust compilation with errors like:
error: rustc interrupted by SIGSEGV, printing backtrace
qemu: uncaught target signal 11 (Segmentation fault) - core dumped