these 2 derivations will be built:
  /nix/store/nswxka4gzpn5kssmz62lfhwklnardw7n-nix-grpc-store-0.2.3.drv
  /nix/store/r0nxqrc6clg6zq0x6q9sb5hphs4mhka3-nix-grpc-store-dispatcher.drv