[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/362/ : UNSTABLE in 1h 43m 19s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/355/ : UNSTABLE in 4h 45m 33s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/66/ : UNSTABLE in 3h 19m 19s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/355/ : UNSTABLE in 3h 55m 01s