these 2 derivations will be built:
  /nix/store/qj6y5ba4bnyqgdbj59xni9pva3qc2h3l-nix-grpc-store-0.2.3.drv
  /nix/store/hgidf15ylz8352kqnafa4cjq15m1jjnr-nix-grpc-store-dispatcher.drv