this derivation will be built:
  /nix/store/kpzn07bb3k4x96n68n5gvmpwizv54qvl-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/kpzn07bb3k4x96n68n5gvmpwizv54qvl-bcachefs-module-7.0.0-29-generic.drv'...