these 2 derivations will be built:
  /nix/store/dx999rf2hqa6xj19amnj1srshgg7shp5-driver-configuration.json.drv
  /nix/store/mlhvhak9fsb8ix1jaxhssg2aq54jq6zf-test-driver.drv
building '/nix/store/dx999rf2hqa6xj19amnj1srshgg7shp5-driver-configuration.json.drv'
driver-configuration.json> structuredAttrs is enabled
building '/nix/store/mlhvhak9fsb8ix1jaxhssg2aq54jq6zf-test-driver.drv'
test-driver> structuredAttrs is enabled

upload niks3: ok