[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/421/ : UNSTABLE in 1h 34m 29s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/418/ : UNSTABLE in 4h 07m 50s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/127/ : UNSTABLE in 3h 54m 09s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/421/ : UNSTABLE in 3h 20m 01s