these 2 derivations will be built:
  /nix/store/rbrr6kxkz4bhda7sb9xfxjnhkpvzm4q4-nix-grpc-store-0.2.2.drv
  /nix/store/hgck7y1w663n946s5gy46i3zlx6bkx77-nix-grpc-store-exit-stress.drv