these 2 derivations will be built:
  /nix/store/6xbgkjzrhcx0crfsmfykwzkbinpasw7b-nix-grpc-store-0.2.3.drv
  /nix/store/ffi9szm1dkac963fjz60chwpjqhgaagi-nix-grpc-store-dispatcher.drv