this derivation will be built:
  /nix/store/fag55pzq1yhyza6784zfbbac8aq0dkrr-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/fag55pzq1yhyza6784zfbbac8aq0dkrr-bcachefs-module-7.0.0-29-generic.drv'...