this derivation will be built:
  /nix/store/2xgq0kispf2rc4wxwbp2vsafp3ljcrpq-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/2xgq0kispf2rc4wxwbp2vsafp3ljcrpq-bcachefs-module-7.0.0-38-generic.drv'...