these 4 derivations will be built:
  /nix/store/vizjx9pk5dk9b8yg899fa0x7ja4sgxvk-ubuntu-23.10-server-cloudimg-amd64.img-nix-vm-test.qcow2.drv
  /nix/store/6w9a3n5sk7jcbjyblnj441lvw90ckb8x-run-vm-vm.drv
  /nix/store/w2qw6prq9hp2xg30mhl3q56lzz225anw-driver-configuration.json.drv
  /nix/store/2bdpjzj3xvgvgpw5hgakmkvgcj02f9xw-test-driver.drv
building '/nix/store/w2qw6prq9hp2xg30mhl3q56lzz225anw-driver-configuration.json.drv'
driver-configuration.json> structuredAttrs is enabled
building '/nix/store/2bdpjzj3xvgvgpw5hgakmkvgcj02f9xw-test-driver.drv'

upload niks3: ok