[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/474/ : UNSTABLE in 1h 42m 11s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/472/ : UNSTABLE in 3h 00m 26s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/186/ : UNSTABLE in 3h 23m 03s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/474/ : UNSTABLE in 3h 37m 54s