[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/398/ : UNSTABLE in 1h 55m 32s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/393/ : UNSTABLE in 3h 34m 56s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/102/ : UNSTABLE in 3h 18m 11s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/397/ : UNSTABLE in 2h 57m 21s