this derivation will be built:
  /nix/store/722wrjkshf4gfpfmvd78nkd7sjp1vi2b-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/722wrjkshf4gfpfmvd78nkd7sjp1vi2b-bcachefs-module-7.0.0-39-generic.drv'...