Debug when `systemctl -f enable docker` fails

One customer reported that provisioning failed due to this error:

sudo systemctl -f enable docker
SSH cmd err, output: exit status 255:
(cypress-45031528909ac2e9118b6e2ff0d223f13ff27f77) Calling .GetConfigRaw
Error creating machine: Error running provisioning: ssh command error:
command : sudo systemctl -f enable docker
err     : exit status 255
output  :
notifying bugsnag: [Error creating machine: Error running provisioning: ssh command error:
command : sudo systemctl -f enable docker
err     : exit status 255
output  : ]

sudo systemctl status docker might tell us more.