these 4 derivations will be built:
  /nix/store/bg5bg8jm1dnpk9rm0y60mmq6giah1xfn-ubuntu-24.04-server-cloudimg-amd64.img-nix-vm-test.qcow2.drv
  /nix/store/i2245xa8hyksnv37l9cwy8vsicfasb0f-run-vm-vm.drv
  /nix/store/2xy74ss92kz595xwxm7bikjhil85q1kr-driver-configuration.json.drv
  /nix/store/vkip3xd2vpdpamy8vnw44z4krihx9v42-test-driver.drv
building '/nix/store/bg5bg8jm1dnpk9rm0y60mmq6giah1xfn-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> [  27.0] 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> [  27.2] Setting the machine ID in /etc/machine-id
ubuntu-24.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [  27.2] Copying: backdoor.service to /etc/systemd/system
ubuntu-24.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [  27.3] Copying: mount-store.service to /etc/systemd/system
ubuntu-24.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [  27.4] Copying: resizeguest.service to /etc/systemd/system
ubuntu-24.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [  27.5] Running: /nix/store/79sj99idfnjraik226s1k4ixd2693qsd-run-script
ubuntu-24.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [  29.7] SELinux relabelling
ubuntu-24.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [  30.2] Finishing off
building '/nix/store/i2245xa8hyksnv37l9cwy8vsicfasb0f-run-vm-vm.drv'
run-vm-vm> structuredAttrs is enabled
building '/nix/store/2xy74ss92kz595xwxm7bikjhil85q1kr-driver-configuration.json.drv'
driver-configuration.json> structuredAttrs is enabled
building '/nix/store/vkip3xd2vpdpamy8vnw44z4krihx9v42-test-driver.drv'
test-driver> structuredAttrs is enabled

upload niks3: ok