[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/496/ : UNSTABLE in 1h 33m 39s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/495/ : UNSTABLE in 3h 07m 32s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/212/ : SUCCESS in 3h 19m 23s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/498/ : UNSTABLE in 3h 22m 19s