[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/327/ : UNSTABLE in 1h 56m 41s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/321/ : SUCCESS in 3h 34m 18s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/29/ : SUCCESS in 3h 57m 52s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/320/ : UNSTABLE in 4h 17m 00s