[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/515/ : UNSTABLE in 1h 35m 58s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/514/ : UNSTABLE in 3h 11m 13s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/232/ : SUCCESS in 3h 36m 27s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/517/ : UNSTABLE in 4h 51m 21s