[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/500/ : UNSTABLE in 1h 33m 49s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/499/ : UNSTABLE in 3h 28m 02s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/216/ : FAILURE in 12m 27s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/502/ : UNSTABLE in 3h 38m 18s