this derivation will be built:
  /nix/store/zpacvb2abz2z09q400y1kwnnnw7sp1xw-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/zpacvb2abz2z09q400y1kwnnnw7sp1xw-bcachefs-module-7.0.0-39-generic.drv'...