[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/470/ : UNSTABLE in 1h 51m 39s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/468/ : UNSTABLE in 3h 01m 16s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/182/ : UNSTABLE in 3h 25m 35s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/470/ : UNSTABLE in 3h 29m 46s