[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/494/ : UNSTABLE in 1h 42m 32s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/493/ : SUCCESS in 2h 59m 52s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/210/ : SUCCESS in 3h 37m 25s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/496/ : UNSTABLE in 3h 47m 01s