this derivation will be built:
  /nix/store/8bjv12dkvlr4mawah7jb55pv241j7ajl-bcachefs-module-7.0.0-14-generic.drv
building '/nix/store/8bjv12dkvlr4mawah7jb55pv241j7ajl-bcachefs-module-7.0.0-14-generic.drv'...