these 2 derivations will be built:
  /nix/store/p260z115dk7dvflhiql00yqw83x0iqdr-nix-grpc-store-0.1.0.drv
  /nix/store/bk8kg6zv3q9jzklgns3daazhik130g76-nix-grpc-store-exit-stress.drv