[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/103/ : SUCCESS in 1h 39m 16s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/94/ : UNSTABLE in 3h 46m 24s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/95/ : UNSTABLE in 3h 27m 57s