[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/539/ : UNSTABLE in 1h 42m 30s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/539/ : SUCCESS in 3h 13m 01s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/257/ : UNSTABLE in 3h 55m 24s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/541/ : UNSTABLE in 3h 56m 34s