these 2 derivations will be built:
  /nix/store/g4qn4ydyyyd14mg6jj8w6qf9sjv654w4-nix-grpc-store-0.1.0-beta.4.drv
  /nix/store/qaggnw9hdmrx5ilk1w5mf490cvi1s06z-nix-grpc-store-dispatcher.drv