these 2 derivations will be built:
  /nix/store/ry4g2m8zirrm3zbzp77kcij37ifqqbkq-nix-grpc-store-0.2.0.drv
  /nix/store/kpy3qv9nla6y5br910q12jb9py6762dk-nix-grpc-store-dispatcher.drv