these 2 derivations will be built:
  /nix/store/1gvxp9fsbgzk6kqbxi6dsk7a131f4wlg-nix-grpc-store-0.2.3.drv
  /nix/store/7f9bf4pwk7a0ahnhgykxyqa3349cf3y7-nix-grpc-store-exit-stress.drv