[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/472/ : UNSTABLE in 1h 30m 36s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/470/ : UNSTABLE in 3h 20m 32s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/184/ : UNSTABLE in 3h 35m 29s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/472/ : UNSTABLE in 3h 29m 35s