this derivation will be built:
  /nix/store/jflgjm4kkllk5x3k541b089i567wkkf7-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/jflgjm4kkllk5x3k541b089i567wkkf7-bcachefs-module-7.0.0-31-generic.drv'...