[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/479/ : UNSTABLE in 1h 35m 37s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/477/ : UNSTABLE in 2h 52m 46s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/191/ : UNSTABLE in 3h 41m 58s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/479/ : UNSTABLE in 3h 22m 51s