[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/504/ : UNSTABLE in 1h 41m 56s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/503/ : UNSTABLE in 3h 13m 36s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/220/ : SUCCESS in 3h 38m 55s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/506/ : UNSTABLE in 3h 42m 55s