[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- periodic-asterisk-11 : NOT_REGISTERED
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/558/ : FAILURE in 5m 44s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/276/ : UNSTABLE in 3h 14m 50s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/560/ : UNSTABLE in 3h 13m 10s