[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/320/ : SUCCESS in 1h 40m 23s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/314/ : UNSTABLE in 4h 05m 05s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/22/ : UNSTABLE in 3h 10m 01s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/313/ : SUCCESS in 3h 19m 13s