this derivation will be built:
  /nix/store/s9s61jmiis7z9jzxgiw0lc2z1w60pq7d-vm-test-run-systemd-shutdown.drv
error: Cannot build '/nix/store/s9s61jmiis7z9jzxgiw0lc2z1w60pq7d-vm-test-run-systemd-shutdown.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/3c01vhgknch2lpk48n8ag4pz103vhd60-vm-test-run-systemd-shutdown
       Last 25 log lines:
       > machine # [   18.401906] shutdown[1]: All DM devices detached.
       > machine # [   18.402556] shutdown[1]: All filesystems, swaps, loop devices, MD devices and DM devices detached.
       > machine # [   18.410556] shutdown[1]: Syncing filesystems and block devices.
       > machine # [   18.413290] shutdown[1]: Powering off.
       > machine # [   18.442924] Console: switching to colour dummy device 80x25
       > machine # [   18.451820] Flash device refused suspend due to active operation (state 20)
       > machine # [   18.451837] Flash device refused suspend due to active operation (state 20)
       > machine # [   18.454242] reboot: Power down
       > machine # [2026-10-17T02:41:39Z INFO  virtiofsd] Client disconnected, shutting down
       > machine # [2026-10-17T02:41:39Z INFO  virtiofsd] Client disconnected, shutting down
       > machine # [2026-10-17T02:41:39Z INFO  virtiofsd] Client disconnected, shutting down
       > machine: (finished: waiting for Unmounting '/oldroot' to appear on console, in 2.02 seconds)
       > machine: waiting for Shutting down NixOS to appear on console
       > !!! Traceback (most recent call last):
       > !!!   File "<string>", line 10, in <module>
       > !!!     machine.wait_for_console_text("Shutting down NixOS", timeout=dt.timedelta(seconds=5))
       > !!! 
       > !!! RequestedAssertionFailed: action timed out after 5.00 seconds (timeout=5.0)
       > cleanup
       > kill QemuMachine (pid 45)
       > (finished: cleanup, in 0.00 seconds)
       > additionally exposed symbols:
       >     machine,
       >     vlan1,
       >     start_all, test_script, machines, machines_qemu, machines_nspawn, vlans, driver, log, os, create_machine, subtest, run_tests, join_all, retry, serial_stdout_off, serial_stdout_on, polling_condition, BaseMachine, QemuMachine, NspawnMachine, t, debug, dump_machine_ssh
       For full logs, run:
         nix log /nix/store/s9s61jmiis7z9jzxgiw0lc2z1w60pq7d-vm-test-run-systemd-shutdown.drv