these 2 derivations will be built:
  /nix/store/6fzfyx2k257lzicdwna5ibxhmzv1nhp8-nixos-test-driver-index_advisor.drv
  /nix/store/asp01l9bxicmxip8hjnx6kcf38l7hdxy-vm-test-run-index_advisor.drv