[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/510/ : UNSTABLE in 1h 48m 14s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/509/ : SUCCESS in 3h 02m 09s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/226/ : UNSTABLE in 3h 24m 12s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/512/ : UNSTABLE in 3h 36m 33s