these 2 derivations will be built:
  /nix/store/rl8ky170scr37fpzf5pzqjkrgy3f520c-nix-grpc-store-0.1.0.drv
  /nix/store/57pdrvjcc2j2kjg0q1vpv8gg90b91s0a-nix-grpc-store-dispatcher.drv