[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/514/ : UNSTABLE in 1h 36m 33s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/513/ : UNSTABLE in 3h 20m 23s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/230/ : UNSTABLE in 3h 54m 52s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/516/ : SUCCESS in 4h 39m 37s