these 4 derivations will be built:
  /nix/store/lbf31v08h4plk70c5g8a1fjphaqbswj1-ubuntu-22.04-server-cloudimg-amd64.img-nix-vm-test.qcow2.drv
  /nix/store/q8as11vykb6ari17v7v488syy7jis2b0-run-vm-vm.drv
  /nix/store/gzwqzgp0ccd3ipqxp19vxk0939gksx80-driver-configuration.json.drv
  /nix/store/3hmxd3qwijp2xj317w2qb042pfy68f1x-test-driver.drv
building '/nix/store/gzwqzgp0ccd3ipqxp19vxk0939gksx80-driver-configuration.json.drv'
driver-configuration.json> structuredAttrs is enabled
building '/nix/store/3hmxd3qwijp2xj317w2qb042pfy68f1x-test-driver.drv'
test-driver> structuredAttrs is enabled

upload niks3: ok