these 4 derivations will be built:
  /nix/store/jrxn72hbf0i0briqhps2vsjdmrvyvmmx-ubuntu-22.04-server-cloudimg-amd64.img-nix-vm-test.qcow2.drv
  /nix/store/qgpqn4kdg4qgay8q1631y90hzrkfi9ag-run-vm-vm.drv
  /nix/store/y8s6kh8598c45ipmrvl6jixjaqd8i1sx-driver-configuration.json.drv
  /nix/store/726zn8kb913md952cq239jy0vdxf1lrc-test-driver.drv
building '/nix/store/jrxn72hbf0i0briqhps2vsjdmrvyvmmx-ubuntu-22.04-server-cloudimg-amd64.img-nix-vm-test.qcow2.drv'
ubuntu-22.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   0.0] Examining the guest ...
ubuntu-22.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   4.8] Setting a random seed
ubuntu-22.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> virt-customize: warning: random seed could not be set for this type of 
ubuntu-22.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> guest
ubuntu-22.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   4.8] Setting the machine ID in /etc/machine-id
ubuntu-22.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   4.8] Copying: backdoor.service to /etc/systemd/system
ubuntu-22.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   4.9] Copying: mount-store.service to /etc/systemd/system
ubuntu-22.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   4.9] Copying: resizeguest.service to /etc/systemd/system
ubuntu-22.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   4.9] Running: /nix/store/ak16ynrwy8ri9gk46j5vpdyq319c6vi4-run-script
ubuntu-22.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   5.1] SELinux relabelling
ubuntu-22.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   5.1] Finishing off
building '/nix/store/qgpqn4kdg4qgay8q1631y90hzrkfi9ag-run-vm-vm.drv'
building '/nix/store/y8s6kh8598c45ipmrvl6jixjaqd8i1sx-driver-configuration.json.drv'
driver-configuration.json> structuredAttrs is enabled
building '/nix/store/726zn8kb913md952cq239jy0vdxf1lrc-test-driver.drv'

upload niks3: ok