[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/544/ : UNSTABLE in 1h 33m 39s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/544/ : UNSTABLE in 3h 23m 14s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/262/ : UNSTABLE in 3h 52m 48s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/546/ : UNSTABLE in 3h 53m 15s