these 2 derivations will be built:
  /nix/store/x35y6x967b33mllzng8jmhkcxzd4rbzr-nixos-test-driver-pgjwt.drv
  /nix/store/p785l0fy8npbphl1gaa52r37i3910dby-vm-test-run-pgjwt.drv