these 2 derivations will be built:
  /nix/store/5nqza79mrs07k4rdxx0fzn6wjg0ph0if-nix-grpc-store-0.1.0.drv
  /nix/store/jsbvzdfz3yfpg3h1gv6m20ndbsvzzcah-nix-grpc-store-exit-stress.drv