[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/525/ : UNSTABLE in 1h 48m 35s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/524/ : UNSTABLE in 3h 19m 37s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/242/ : UNSTABLE in 3h 40m 42s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/527/ : UNSTABLE in 3h 40m 35s