these 2 derivations will be built:
  /nix/store/ildgf52m56g68rgy93wbh5rkh7d9hs8z-nix-grpc-store-0.1.0-beta.1.drv
  /nix/store/h664yv7gq112pqgbnh83by4i5flly7kf-nix-grpc-store-exit-stress.drv