these 2 derivations will be built:
  /nix/store/5fr6zr6w6xjynl1gfsdzs8ljk8q1w8ac-nix-grpc-store-0.2.0.drv
  /nix/store/dm914g62rn320cirgfmcfrq6l9fqjvnj-nix-grpc-store-dispatcher.drv