these 2 derivations will be built:
  /nix/store/wh36yhpk2pfxn10yf2ssyx7zy2zijwp0-nix-grpc-store-0.2.3.drv
  /nix/store/485mryh5bayra0ks3wb6yij1wj6hggp6-nix-grpc-store-dispatcher.drv