these 2 derivations will be built:
  /nix/store/a9y2r7kl51sr5sgl3qxwbj4f4b3a8h3d-nix-grpc-store-0.1.0-beta.2.drv
  /nix/store/6gg6pg4v5cglkbci5ah03ds5ym908mv1-nix-grpc-store-exit-stress.drv