these 2 derivations will be built:
  /nix/store/mqs6hxw08zhf8grw5ixly1zskj3zfnyl-nix-grpc-store-0.1.0.drv
  /nix/store/15b7jvvlgm1qd4p2qx7in9128la5bnas-nix-grpc-store-exit-stress.drv