this derivation will be built:
  /nix/store/n9zz77h2h2pj5v8lw4bz6xsndx68f15l-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/n9zz77h2h2pj5v8lw4bz6xsndx68f15l-bcachefs-module-7.0.0-31-generic.drv'...