these 2 derivations will be built:
  /nix/store/bng6gsh3a4nni3732p8i248j32fwkmxb-nixos-test-driver-pgjwt.drv
  /nix/store/7c5axx19ys4hxdmws51kd7k5k3l7wicx-vm-test-run-pgjwt.drv