these 2 derivations will be built:
  /nix/store/s33f2zrhc6sh27rwpal90xa2c3zm1r1h-nixos-test-driver-pgjwt.drv
  /nix/store/xqcazhlilbg1w7m8ad8vh7hr1grd2spz-vm-test-run-pgjwt.drv