Failed to start on Manjaro
journalctl give following error
Oct 12 12:32:11 ccc-pc systemd[3814]: upower.service: Failed to set up user namespacing: Invalid argument
Oct 12 12:32:11 ccc-pc systemd[3814]: upower.service: Failed at step USER spawning /usr/lib/upowerd: Invalid argument
Oct 12 12:32:11 ccc-pc systemd[1]: upower.service: Main process exited, code=exited, status=217/USER
Oct 12 12:32:11 ccc-pc systemd[1]: upower.service: Failed with result 'exit-code'.
Oct 12 12:32:11 ccc-pc systemd[1]: Failed to start Daemon for power management.
After reverting systemd service file before '1c6a6bf' commit, the service starts successfully.