[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/547/ : UNSTABLE in 1h 33m 21s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/547/ : UNSTABLE in 3h 19m 46s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/265/ : UNSTABLE in 3h 35m 54s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/549/ : SUCCESS in 4h 36m 37s