these 2 derivations will be built:
  /nix/store/7gwnzgspj7fn4wiv982vm77nbvvpc7aq-nix-grpc-store-0.1.0.drv
  /nix/store/1411shwjrjka98l4kf0jhg24nmi43cbz-nix-grpc-store-dispatcher.drv