this derivation will be built:
  /nix/store/f4lv35gpy7qiak081l5qcxmfa8as1jmx-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/f4lv35gpy7qiak081l5qcxmfa8as1jmx-bcachefs-module-7.0.0-31-generic.drv'...