these 2 derivations will be built:
  /nix/store/dbzhcrh7l5iazd9isp4qwvahq7vvc3i0-nix-grpc-store-0.1.0.drv
  /nix/store/rsx9h0k7j3yvs29f20rpfii0jlnx99dk-nix-grpc-store-exit-stress.drv