these 2 derivations will be built:
  /nix/store/hf5hyslrvxr6nr1gyjp54vh9h8s6l7fm-driver-configuration.json.drv
  /nix/store/wv2k4xda8w49bvy74b2qpfp819bkgych-test-driver.drv
building '/nix/store/hf5hyslrvxr6nr1gyjp54vh9h8s6l7fm-driver-configuration.json.drv'
driver-configuration.json> structuredAttrs is enabled
building '/nix/store/wv2k4xda8w49bvy74b2qpfp819bkgych-test-driver.drv'
test-driver> structuredAttrs is enabled

upload niks3: ok