[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/493/ : UNSTABLE in 1h 42m 04s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/492/ : SUCCESS in 3h 17m 19s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/209/ : UNSTABLE in 3h 36m 40s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/495/ : UNSTABLE in 4h 47m 48s