these 6 derivations will be built:
  /nix/store/6658z4lsjh1vi3ldai0z7dlvpbrwzw5q-libguestfs-1.56.2.drv
  /nix/store/kp543zls1k4jwjya1f5q4pn954z7pc85-guestfs-tools-1.52.3.drv
  /nix/store/q5smhp35dywwfmcm40ir2xzaqjrdwkgp-ubuntu-23.04-server-cloudimg-amd64.img-nix-vm-test.qcow2.drv
  /nix/store/9jcrp4g7yjr108nncjr5874sbgy4i571-run-vm-vm.drv
  /nix/store/95b3cnkfy1dnj9pp413yc45r9hrzdl9w-driver-configuration.json.drv
  /nix/store/z1cv9q0gpp1llnb9zmx544bd79ch0z60-test-driver.drv
building '/nix/store/q5smhp35dywwfmcm40ir2xzaqjrdwkgp-ubuntu-23.04-server-cloudimg-amd64.img-nix-vm-test.qcow2.drv'
ubuntu-23.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   0.0] Examining the guest ...
ubuntu-23.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   5.6] Setting a random seed
ubuntu-23.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> virt-customize: warning: random seed could not be set for this type of 
ubuntu-23.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> guest
ubuntu-23.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   5.6] Setting the machine ID in /etc/machine-id
ubuntu-23.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   5.6] Copying: backdoor.service to /etc/systemd/system
ubuntu-23.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   5.7] Copying: mount-store.service to /etc/systemd/system
ubuntu-23.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   5.7] Copying: resizeguest.service to /etc/systemd/system
ubuntu-23.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   5.7] Running: /nix/store/9j2pmjmdm6pv8crd7jbma18vckw8az65-run-script
ubuntu-23.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   6.0] SELinux relabelling
ubuntu-23.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [   6.1] Finishing off
building '/nix/store/9jcrp4g7yjr108nncjr5874sbgy4i571-run-vm-vm.drv'
building '/nix/store/95b3cnkfy1dnj9pp413yc45r9hrzdl9w-driver-configuration.json.drv'
driver-configuration.json> structuredAttrs is enabled
building '/nix/store/z1cv9q0gpp1llnb9zmx544bd79ch0z60-test-driver.drv'

upload niks3: ok