[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/437/ : UNSTABLE in 1h 37m 38s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/433/ : UNSTABLE in 3h 31m 52s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/145/ : SUCCESS in 3h 30m 50s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/437/ : UNSTABLE in 3h 45m 37s