[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/553/ : UNSTABLE in 1h 42m 38s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/554/ : UNSTABLE in 3h 23m 57s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/272/ : SUCCESS in 3h 12m 55s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/556/ : UNSTABLE in 3h 48m 30s