[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/346/ : SUCCESS in 1h 43m 51s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/339/ : SUCCESS in 4h 33m 19s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/48/ : UNSTABLE in 3h 14m 37s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/338/ : UNSTABLE in 3h 48m 55s