these 2 derivations will be built:
  /nix/store/bk58h8yw9y3mzz4nk1m6yr99rlffn2sk-driver-configuration.json.drv
  /nix/store/7aiix70ad6c11c8yil2iw91mmykj4gqd-test-driver.drv
building '/nix/store/bk58h8yw9y3mzz4nk1m6yr99rlffn2sk-driver-configuration.json.drv'
driver-configuration.json> structuredAttrs is enabled
building '/nix/store/7aiix70ad6c11c8yil2iw91mmykj4gqd-test-driver.drv'
test-driver> structuredAttrs is enabled

upload niks3: ok