[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/308/ : SUCCESS in 1h 39m 57s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/301/ : UNSTABLE in 4h 04m 29s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/9/ : UNSTABLE in 3h 08m 57s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/301/ : SUCCESS in 3h 19m 31s