these 2 derivations will be built:
  /nix/store/nslxcpp9qm7ysmnv4qn6zwv2a1nxxvi6-nix-grpc-store-0.1.0.drv
  /nix/store/rc0612pmdxm3nsqcilmnhxd0pj3qh4q8-nix-grpc-store-dispatcher.drv