[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/312/ : SUCCESS in 1h 40m 03s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/305/ : SUCCESS in 3h 33m 24s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/13/ : UNSTABLE in 3h 17m 43s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/305/ : UNSTABLE in 3h 07m 23s