this derivation will be built:
  /nix/store/vgff40km47g6fx6cb4qvbfkjw6k8gqi3-bcachefs-module-7.0.0-34-generic.drv
building '/nix/store/vgff40km47g6fx6cb4qvbfkjw6k8gqi3-bcachefs-module-7.0.0-34-generic.drv'...