these 2 derivations will be built:
  /nix/store/apagcy3qz01bl8khzr6mj6pk0hfs31y3-nix-grpc-store-0.2.0.drv
  /nix/store/ar9dn2wjy7qjcav2ma8f1m4pbb7l4lzn-nix-grpc-store-dispatcher.drv