bld1: building 96yvra22y1q75j4aw3lbb4ibzli0q1z1-ubuntu-26.04-server-cloudimg-amd64v3.img-nix-vm-test.qcow2.drv
[   0.0] Examining the guest ...
[   6.2] Setting a random seed
virt-customize: warning: random seed could not be set for this type of 
guest
[   6.3] Setting the machine ID in /etc/machine-id
[   6.3] Copying: backdoor.service to /etc/systemd/system
[   6.3] Copying: mount-store.service to /etc/systemd/system
[   6.3] Copying: resizeguest.service to /etc/systemd/system
[   6.3] Running: /nix/store/scfjy89rsmw7wvl8k6dpdna2kqxmxdmq-run-script
[   6.7] SELinux relabelling
[   6.8] Finishing off