[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/418/ : UNSTABLE in 1h 37m 34s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/415/ : UNSTABLE in 3h 35m 41s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/123/ : UNSTABLE in 4h 19m 05s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/418/ : UNSTABLE in 3h 29m 46s