these 2 derivations will be built:
  /nix/store/98gf1j5a6a8ks71va79xs0pbjjw11ls1-nixos-test-driver-pgjwt.drv
  /nix/store/xmbm9ab3in7i63alx5lm3zgvdh1q1xyy-vm-test-run-pgjwt.drv