these 4 derivations will be built:
  /nix/store/x7g5l2pqjyi14bqwlbbrkq774nbnhnmc-ubuntu-24.04-server-cloudimg-amd64.img-nix-vm-test.qcow2.drv
  /nix/store/wd51aa9xk6pjpimkkyi81c1ixrx00dr2-run-vm-vm.drv
  /nix/store/knqg5n74wixp1yijm34fcpfb7cmqpzhl-driver-configuration.json.drv
  /nix/store/w9gl431mxydw94hlpiizidf1z173qa73-test-driver.drv
building '/nix/store/x7g5l2pqjyi14bqwlbbrkq774nbnhnmc-ubuntu-24.04-server-cloudimg-amd64.img-nix-vm-test.qcow2.drv'
ubuntu-24.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   0.0] Examining the guest ...
ubuntu-24.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   8.7] Setting a random seed
ubuntu-24.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> virt-customize: warning: random seed could not be set for this type of 
ubuntu-24.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> guest
ubuntu-24.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   8.8] Setting the machine ID in /etc/machine-id
ubuntu-24.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   8.8] Copying: backdoor.service to /etc/systemd/system
ubuntu-24.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   8.8] Copying: mount-store.service to /etc/systemd/system
ubuntu-24.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   8.9] Copying: resizeguest.service to /etc/systemd/system
ubuntu-24.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   8.9] Running: /nix/store/gwc0ksfgmqhdr0xhwmyrs4sl5902vjpx-run-script
ubuntu-24.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   9.2] SELinux relabelling
ubuntu-24.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   9.5] Finishing off
building '/nix/store/wd51aa9xk6pjpimkkyi81c1ixrx00dr2-run-vm-vm.drv'
run-vm-vm> structuredAttrs is enabled
building '/nix/store/knqg5n74wixp1yijm34fcpfb7cmqpzhl-driver-configuration.json.drv'
driver-configuration.json> structuredAttrs is enabled
building '/nix/store/w9gl431mxydw94hlpiizidf1z173qa73-test-driver.drv'
test-driver> structuredAttrs is enabled

upload niks3: ok