[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/476/ : UNSTABLE in 1h 45m 00s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/474/ : SUCCESS in 3h 25m 24s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/188/ : UNSTABLE in 3h 23m 08s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/476/ : UNSTABLE in 3h 26m 39s