[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/527/ : UNSTABLE in 1h 34m 27s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/526/ : UNSTABLE in 3h 29m 59s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/244/ : UNSTABLE in 3h 37m 41s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/529/ : UNSTABLE in 3h 35m 35s