[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/409/ : UNSTABLE in 1h 44m 01s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/405/ : UNSTABLE in 3h 31m 33s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/115/ : UNSTABLE in 4h 18m 36s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/409/ : UNSTABLE in 3h 42m 53s