this derivation will be built:
  /nix/store/3r8z387d45521y6fn33jciibs8q7has5-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/3r8z387d45521y6fn33jciibs8q7has5-bcachefs-module-7.0.0-39-generic.drv'...