these 2 derivations will be built:
  /nix/store/qks5jqdm5pwih3njmpg3pmlnibwq68qf-nixos-test-driver-pgaudit.drv
  /nix/store/1rp13hrb1bljl9fhinn2h5j5n1sfm418-vm-test-run-pgaudit.drv