these 2 derivations will be built:
  /nix/store/njzffxbpmfwqy5lrzf238im008wrclh0-nix-grpc-store-0.2.3.drv
  /nix/store/63z6s78lmz8arfy8j5ykzsqz5y4bbfgn-nix-grpc-store-dispatcher.drv