[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/303/ : SUCCESS in 1h 35m 49s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/296/ : SUCCESS in 2h 59m 51s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/1/ : UNSTABLE in 3h 50m 20s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/296/ : UNSTABLE in 4h 26m 45s