[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/506/ : UNSTABLE in 1h 52m 10s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/505/ : SUCCESS in 3h 21m 09s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/222/ : UNSTABLE in 3h 45m 08s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/508/ : UNSTABLE in 4h 28m 11s