these 4 derivations will be built:
  /nix/store/rirlw69r3cg34pwn14lmrh2vcpbc9036-ubuntu-23.10-server-cloudimg-amd64.img-nix-vm-test.qcow2.drv
  /nix/store/n4acf79zm55hrimfhp72d0drymmfbmh2-run-vm-vm.drv
  /nix/store/45rilagq9pkihqhhlwhjnl0kk4cywj5k-driver-configuration.json.drv
  /nix/store/cc9wdsk0cnqjk5cysi7knpa4qz940bij-test-driver.drv
building '/nix/store/45rilagq9pkihqhhlwhjnl0kk4cywj5k-driver-configuration.json.drv'
driver-configuration.json> structuredAttrs is enabled
building '/nix/store/cc9wdsk0cnqjk5cysi7knpa4qz940bij-test-driver.drv'

upload niks3: ok