this derivation will be built:
  /nix/store/8iczlp273pn9p2h31qwkbyl5z4csyqbj-bcachefs-module-7.0.0-30-generic.drv
building '/nix/store/8iczlp273pn9p2h31qwkbyl5z4csyqbj-bcachefs-module-7.0.0-30-generic.drv'...