[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/400/ : UNSTABLE in 1h 20m 35s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/395/ : SUCCESS in 3h 32m 37s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/104/ : SUCCESS in 4h 16m 58s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/400/ : UNSTABLE in 3h 13m 39s