this derivation will be built:
  /nix/store/39bvq19m7f919b9bbj8qc5kz9vfadvlq-bcachefs-module-7.0.0-34-generic.drv
building '/nix/store/39bvq19m7f919b9bbj8qc5kz9vfadvlq-bcachefs-module-7.0.0-34-generic.drv'...