these 4 derivations will be built:
  /nix/store/ygfdckxlyy9zgd8mafpwmv7ij4hd90z0-ubuntu-22.04-server-cloudimg-amd64.img-nix-vm-test.qcow2.drv
  /nix/store/gykghwfcs4k4wzqhblq5573zbay8x62a-run-vm-vm.drv
  /nix/store/58wx1lcdwcb04hpsk5ydjqaz8qzx8p4g-driver-configuration.json.drv
  /nix/store/vja3q347502d48kr9m11x31jj3wkih0y-test-driver.drv
building '/nix/store/ygfdckxlyy9zgd8mafpwmv7ij4hd90z0-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> [   4.6] 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> [   4.6] Setting the machine ID in /etc/machine-id
ubuntu-22.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   4.6] Copying: backdoor.service to /etc/systemd/system
ubuntu-22.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   4.6] Copying: mount-store.service to /etc/systemd/system
ubuntu-22.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   4.6] Copying: resizeguest.service to /etc/systemd/system
ubuntu-22.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   4.7] Running: /nix/store/ak16ynrwy8ri9gk46j5vpdyq319c6vi4-run-script
ubuntu-22.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   4.8] SELinux relabelling
ubuntu-22.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   4.9] Finishing off
building '/nix/store/gykghwfcs4k4wzqhblq5573zbay8x62a-run-vm-vm.drv'
building '/nix/store/58wx1lcdwcb04hpsk5ydjqaz8qzx8p4g-driver-configuration.json.drv'
driver-configuration.json> structuredAttrs is enabled
building '/nix/store/vja3q347502d48kr9m11x31jj3wkih0y-test-driver.drv'

upload niks3: ok