this derivation will be built:
  /nix/store/g8smv79d2qyd9nsyfl5g7ami9m7idckl-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/g8smv79d2qyd9nsyfl5g7ami9m7idckl-bcachefs-module-7.0.0-31-generic.drv'...