these 4 derivations will be built:
  /nix/store/0q4i8nw00k26s2gz6aig2c40bmqfw361-test-script.drv
  /nix/store/ldilqrxpya91dh7skmfymh60g5vgj0bf-driverConfiguration.json.drv
  /nix/store/yy1r7rz9xcnkcnd3lmip4g3w25svm06i-nixos-test-driver-iets-cachetest.drv
  /nix/store/whv8w40ldvgjsw6l5y753wkp8wkcanpf-container-test-run-iets-cachetest.drv