this derivation will be built:
  /nix/store/mnv54kw0rjwfz568sxp7iday3y6yxcvw-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/mnv54kw0rjwfz568sxp7iday3y6yxcvw-bcachefs-module-7.0.0-38-generic.drv'...