[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/324/ : SUCCESS in 1h 40m 18s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/318/ : UNSTABLE in 3h 35m 18s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/26/ : UNSTABLE in 4h 48m 14s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/317/ : UNSTABLE in 3h 19m 33s