this derivation will be built:
  /nix/store/a93yhwagc2yw36b6fpmjr5r9jck04kz5-bcachefs-module-7.0.0-27-generic.drv
building '/nix/store/a93yhwagc2yw36b6fpmjr5r9jck04kz5-bcachefs-module-7.0.0-27-generic.drv'...