[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/475/ : UNSTABLE in 1h 33m 47s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/473/ : UNSTABLE in 3h 26m 49s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/187/ : SUCCESS in 3h 41m 01s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/475/ : UNSTABLE in 3h 27m 25s