[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/549/ : UNSTABLE in 1h 33m 19s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/549/ : SUCCESS in 3h 20m 00s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/267/ : UNSTABLE in 3h 05m 59s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/551/ : UNSTABLE in 3h 36m 14s