these 2 derivations will be built:
  /nix/store/6dq8f56y3k8fi0kx22kgwkpbfv6c8kf4-nix-grpc-store-0.1.0.drv
  /nix/store/qjdn95a34n2jspgx3198bhjh5gm0m49l-nix-grpc-store-dispatcher.drv