[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/307/ : SUCCESS in 1h 33m 43s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/300/ : UNSTABLE in 3h 08m 05s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/8/ : SUCCESS in 3h 43m 40s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/300/ : UNSTABLE in 3h 08m 09s