[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/405/ : UNSTABLE in 1h 43m 27s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/401/ : UNSTABLE in 3h 24m 47s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/110/ : UNSTABLE in 3h 43m 29s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/405/ : UNSTABLE in 3h 13m 55s