[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/509/ : UNSTABLE in 1h 33m 26s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/508/ : SUCCESS in 3h 20m 44s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/225/ : UNSTABLE in 3h 44m 57s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/511/ : SUCCESS in 3h 15m 25s