[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/347/ : SUCCESS in 1h 40m 16s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/340/ : UNSTABLE in 4h 36m 29s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/49/ : SUCCESS in 3h 13m 33s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/339/ : UNSTABLE in 4h 21m 56s