these 2 derivations will be built:
  /nix/store/x7k5s9w581wqr01mi7x71dsg7bfbb8n0-nix-grpc-store-0.1.0.drv
  /nix/store/s1vv0ya5m5agswfy4c0055wmbbwkv1lr-nix-grpc-store-dispatcher.drv