these 2 derivations will be built:
  /nix/store/aszgdx6zz35pq4jryf0jgvw0wcdzbhrb-nix-grpc-store-0.1.0.drv
  /nix/store/9arjlcaspk6gy2w50ksxsvp7ipcb3y7s-nix-grpc-store-exit-stress.drv