[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/315/ : UNSTABLE in 1h 40m 26s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/308/ : SUCCESS in 4h 32m 04s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/16/ : SUCCESS in 3h 57m 37s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/308/ : UNSTABLE in 3h 10m 59s