these 2 derivations will be built:
  /nix/store/2m3yn0hbb79rqs8nh3lk035blv5i3cii-nix-grpc-store-0.1.0.drv
  /nix/store/nxc4y8gljg6mpd3bawr0yg2z0fnf8wzf-nix-grpc-store-exit-stress.drv