these 4 derivations will be built:
  /nix/store/ch1c9afx47kvp9n13dhbxfp24003jlr6-ubuntu-22.04-server-cloudimg-amd64.img-nix-vm-test.qcow2.drv
  /nix/store/4fnpk8hcqbacsr6d2hpsgzqdsmqsri0d-run-vm-vm.drv
  /nix/store/08fl6dp7lsm5qzd4g7skg5hhfckq3qsk-driver-configuration.json.drv
  /nix/store/magl6lcywzlyrsnlldmiv2vphda15b78-test-driver.drv
building '/nix/store/ch1c9afx47kvp9n13dhbxfp24003jlr6-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> [  14.0] 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> [  14.1] Setting the machine ID in /etc/machine-id
ubuntu-22.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [  14.1] Copying: backdoor.service to /etc/systemd/system
ubuntu-22.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [  14.1] Copying: mount-store.service to /etc/systemd/system
ubuntu-22.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [  14.1] Copying: resizeguest.service to /etc/systemd/system
ubuntu-22.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [  14.2] Running: /nix/store/79sj99idfnjraik226s1k4ixd2693qsd-run-script
ubuntu-22.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [  14.4] SELinux relabelling
ubuntu-22.04-server-cloudimg-amd64.img-nix-vm-test.qcow2> [  14.5] Finishing off
building '/nix/store/4fnpk8hcqbacsr6d2hpsgzqdsmqsri0d-run-vm-vm.drv'
run-vm-vm> structuredAttrs is enabled
building '/nix/store/08fl6dp7lsm5qzd4g7skg5hhfckq3qsk-driver-configuration.json.drv'
driver-configuration.json> structuredAttrs is enabled
building '/nix/store/magl6lcywzlyrsnlldmiv2vphda15b78-test-driver.drv'
test-driver> structuredAttrs is enabled

upload niks3: ok