[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/488/ : UNSTABLE in 1h 34m 06s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/487/ : SUCCESS in 3h 12m 23s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/203/ : UNSTABLE in 2h 59m 04s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/490/ : UNSTABLE in 4h 49m 45s