these 2 derivations will be built:
  /nix/store/xvbsnykqy7zm4xp4r4h0rkkm1jg44h9s-nixos-test-driver-index_advisor.drv
  /nix/store/24yfck9ik1f1sj4qfsrb74304v21nhnz-vm-test-run-index_advisor.drv