[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/489/ : UNSTABLE in 1h 35m 33s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/488/ : SUCCESS in 3h 21m 43s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/204/ : UNSTABLE in 2h 59m 13s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/491/ : UNSTABLE in 4h 26m 24s