[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/503/ : UNSTABLE in 1h 33m 27s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/502/ : SUCCESS in 3h 07m 16s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/219/ : UNSTABLE in 3h 46m 10s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/505/ : UNSTABLE in 3h 27m 17s