[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/111/ : SUCCESS in 1h 31m 47s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/102/ : UNSTABLE in 2h 44m 44s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/103/ : FAILURE in 2s