[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/524/ : UNSTABLE in 1h 42m 47s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/523/ : UNSTABLE in 3h 12m 16s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/241/ : UNSTABLE in 3h 46m 29s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/526/ : UNSTABLE in 3h 47m 12s