this derivation will be built:
  /nix/store/xkkfmppf0z5k90bm4yfnzwisrm0kz967-bcachefs-module-7.0.0-30-generic.drv
building '/nix/store/xkkfmppf0z5k90bm4yfnzwisrm0kz967-bcachefs-module-7.0.0-30-generic.drv'...