these 4 derivations will be built:
  /nix/store/7vb8f3mzd58snn16hdf2fk0zpja5ck95-ubuntu-22.10-server-cloudimg-amd64.img-nix-vm-test.qcow2.drv
  /nix/store/l7a190j6z9qm69n4jjm587qz2p6mi3af-run-vm-vm.drv
  /nix/store/qk0xp2qfhpb0sd50qjsgc8jvcfdrfag5-driver-configuration.json.drv
  /nix/store/z1qhc58saxn5gfy08j45as76c43p6dpn-test-driver.drv
building '/nix/store/qk0xp2qfhpb0sd50qjsgc8jvcfdrfag5-driver-configuration.json.drv'
driver-configuration.json> structuredAttrs is enabled
building '/nix/store/z1qhc58saxn5gfy08j45as76c43p6dpn-test-driver.drv'

upload niks3: ok