[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/200/ : UNSTABLE in 1h 38m 26s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/193/ : UNSTABLE in 3h 00m 26s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/192/ : UNSTABLE in 3h 50m 27s