these 2 derivations will be built:
  /nix/store/wpgzj24b05bzd6zji0vzsw0cjadxfa4a-nix-grpc-store-0.1.0-beta.3.drv
  /nix/store/b8rr04jpzk09xc0agp9i2hih8km2iyc6-nix-grpc-store-exit-stress.drv