[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/528/ : UNSTABLE in 1h 34m 21s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/527/ : UNSTABLE in 3h 20m 26s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/245/ : UNSTABLE in 3h 46m 24s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/530/ : UNSTABLE in 3h 35m 51s