this derivation will be built:
  /nix/store/njvdv8ksn0ka6s9a4537dwbq1sh05qn8-bcachefs-module-7.0.0-34-generic-64k.drv
building '/nix/store/njvdv8ksn0ka6s9a4537dwbq1sh05qn8-bcachefs-module-7.0.0-34-generic-64k.drv'...