[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/419/ : UNSTABLE in 1h 33m 54s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/416/ : UNSTABLE in 3h 35m 39s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/124/ : UNSTABLE in 4h 22m 03s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/419/ : UNSTABLE in 3h 20m 00s