these 4 derivations will be built:
  /nix/store/9p0kzjl3ya28w5nl7pm8hf67cnqx5r6s-test-script.drv
  /nix/store/15gyf7f22riy55d8jiha3vhvrgn67f81-driverConfiguration.json.drv
  /nix/store/3jri54jlljsd2d9alvddyvfkynydghgn-nixos-test-driver-clan-test-iso.drv
  /nix/store/3f7196z46xwa05vkwv3j9xyxgpazf2mp--test-run-clan-test-iso.drv