these 2 derivations will be built:
  /nix/store/8jcwi4i3nggmgw036cki70d0ca9l59c8-nix-grpc-store-0.1.0.drv
  /nix/store/irq12jcj3waj8jnj6nbyp2z4a9id4dkd-nix-grpc-store-exit-stress.drv