these 2 derivations will be built:
  /nix/store/13v0xlgln3803s76nzp4n1c89kfzp64c-nix-grpc-store-0.2.0.drv
  /nix/store/rh3vgnarh0jx5ww0idcl37c3ijabx905-nix-grpc-store-dispatcher.drv