these 5 derivations will be built:
  /nix/store/7d8smqybvljcp4iad8ri1pld260bmf1v-guestfs-tools-1.52.3.drv
  /nix/store/31r5br12yj20z4zfmv1db96xgg6mp1zj-ubuntu-24.04-server-cloudimg-amd64.img-nix-vm-test.qcow2.drv
  /nix/store/w06s2746snb6hjnbc54imdf74c5m2i8v-run-vm-vm.drv
  /nix/store/bx0af2r2kc9nmaq57r694qgc2f3v9s1f-driver-configuration.json.drv
  /nix/store/fqq1189agjc35cv85arla4fydmv1ww31-test-driver.drv
building '/nix/store/31r5br12yj20z4zfmv1db96xgg6mp1zj-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> [   4.8] 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> [   4.8] Setting the machine ID in /etc/machine-id
ubuntu-24.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   4.8] Copying: backdoor.service to /etc/systemd/system
ubuntu-24.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   4.9] Copying: mount-store.service to /etc/systemd/system
ubuntu-24.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   4.9] Copying: resizeguest.service to /etc/systemd/system
ubuntu-24.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   4.9] Running: /nix/store/79sj99idfnjraik226s1k4ixd2693qsd-run-script
ubuntu-24.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   5.1] SELinux relabelling
ubuntu-24.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   5.2] Finishing off
building '/nix/store/w06s2746snb6hjnbc54imdf74c5m2i8v-run-vm-vm.drv'
run-vm-vm> structuredAttrs is enabled
building '/nix/store/bx0af2r2kc9nmaq57r694qgc2f3v9s1f-driver-configuration.json.drv'
driver-configuration.json> structuredAttrs is enabled
building '/nix/store/fqq1189agjc35cv85arla4fydmv1ww31-test-driver.drv'
test-driver> structuredAttrs is enabled

upload niks3: ok