[Fuego] Problem with Functional.reboot on pptlab:rpi

I'm having a problem running Functional.reboot on pptlab:rpi.

I'm not getting any data back - just the run.json file with an ERROR.
Since I can't see the console log, I can't tell what's going on.

Can you check your server logs (maybe the standard output from
poll_requests.sh) to see if there is any additional information on 
what went wrong with this test.  From the fserver data on fuegotest.org,
it appears this test was running OK.

A subsequent fuego_board_check test ran OK.  It showed that the machine was
up for 9 minutes, so the board was rebooted prior to the execution of
'fuego_board_check'.  You may need to make the reboot process for the 'rpi'
board more robust.  It may be necessary to increase the timeout for the reboot
test, or change the timeout for the reboot operation in 'ttc' for this board.

Can you check on this?

Thanks,
 -- Tim