docker error: Cannot destroy container

[mhecker]

sometimes (especially: when "running all checkers" from the admin menu), some checkers fail with errors like

time="2015-11-10T17:29:03+01:00" level="fatal" msg="Error response from daemon: Cannot destroy container 049cca54561b16728c3778c8816df353c91caf564e1f5b5ca49a32a7a6927df1: Driver aufs failed to remove root filesystem 049cca54561b16728c3778c8816df353c91caf564e1f5b5ca49a32a7a6927df1: rename /var/lib/docker/aufs/diff/049cca54561b16728c3778c8816df353c91caf564e1f5b5ca49a32a7a6927df1 /var/lib/docker/aufs/diff/049cca54561b16728c3778c8816df353c91caf564e1f5b5ca49a32a7a6927df1-removing: device or resource busy

as @nomeata mentioned, this may be related to moby/moby#9665

[mhecker]

until we can fix this, a work-around may be using the functionality added in b7ff4a6

[nomeata]

There is a possibly related issue at moby/moby#3968 (comment) that is reported to be fixed with Linux 3.19. Maybe we should upgrade the host machine soon.

[nomeata]

...but others disagree.

[ifrh]

I vote for closing this bug after mentioning the needed Linux Kernel version in README.md .