these 2 derivations will be built:
  /nix/store/vwx90ic7hx5d2rafiv36plkcxkv86sdk-nix-grpc-store-0.2.3.drv
  /nix/store/kpkrxp5sfbi31gbbc5fbcnb27xlpa5vh-nix-grpc-store-dispatcher.drv