this derivation will be built:
  /nix/store/hxz3bbfs4y5zq81z2zxq8616aj3k8pv7-bcachefs-module-7.0.0-38-generic-64k.drv
building '/nix/store/hxz3bbfs4y5zq81z2zxq8616aj3k8pv7-bcachefs-module-7.0.0-38-generic-64k.drv'...