But the machine does not reboot, so it's stuck in:
RUNNING HANDLER [robertdebock.update : wait for the machine to be down] ********
FAILED - RETRYING: wait for the machine to be down (180 retries left).
FAILED - RETRYING: wait for the machine to be down (179 retries left).
FAILED - RETRYING: wait for the machine to be down (178 retries left).
...
On Fedora 26 in Vagrant (virtualbox) this role issues a reboot command:
But the machine does not reboot, so it's stuck in: