tests: Ubuntu 17.10, 18.04 and Fedora 28 hosts get hanged when running kata-containers under vexxhost

Seems like this error has been seen in a lot of the PRs, and seems like it only happens in ubuntu 17.10. Will try to reproduce the issue.

Stderr: 
Running command '/usr/bin/docker [docker rm -f PefA4fM041MH7fWgK9qf4b1lwu3Ez3]'
[docker rm -f PefA4fM041MH7fWgK9qf4b1lwu3Ez3]
Timeout: 60 seconds
Exit Code: 0
Stdout: PefA4fM041MH7fWgK9qf4b1lwu3Ez3

Stderr: 
Running command '/usr/bin/docker [docker ps -a -f name=PefA4fM041MH7fWgK9qf4b1lwu3Ez3 --format {{.Status}}]'
Build timed out (after 5 minutes). Marking the build as aborted.
Agent went offline during the build
ERROR: Connection was broken: java.io.EOFException
	at java.io.ObjectInputStream$PeekInputStream.readFully(ObjectInputStream.java:2679)
	at java.io.ObjectInputStream$BlockDataInputStream.readShort(ObjectInputStream.java:3154)
	at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:862)
	at java.io.ObjectInputStream.<init>(ObjectInputStream.java:358)
	at hudson.remoting.ObjectInputStreamEx.<init>(ObjectInputStreamEx.java:48)
	at hudson.remoting.AbstractSynchronousByteArrayCommandTransport.read(AbstractSynchronousByteArrayCommandTransport.java:36)
	at hudson.remoting.SynchronousCommandTransport$ReaderThread.run(SynchronousCommandTransport.java:63)
Caused: java.io.IOException: Unexpected termination of the channel
	at hudson.remoting.SynchronousCommandTransport$ReaderThread.run(SynchronousCommandTransport.java:77)

Build step 'Execute shell' marked build as failure
Performing Post build task...

From: http://jenkins.katacontainers.io/job/kata-containers-tests-ubuntu-17-10-PR/23/console