these 2 derivations will be built:
  /nix/store/9r2z6x5bdvpx8fimxswxrr512wqh30dl-nix-grpc-store-0.1.0.drv
  /nix/store/is259j54z0kfzj8q6hnyv6viicb3rlmg-nix-grpc-store-exit-stress.drv