[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/423/ : UNSTABLE in 1h 38m 42s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/420/ : UNSTABLE in 3h 11m 13s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/129/ : UNSTABLE in 3h 36m 59s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/423/ : UNSTABLE in 3h 39m 58s