[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/468/ : UNSTABLE in 1h 48m 55s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/466/ : SUCCESS in 3h 03m 21s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/180/ : SUCCESS in 3h 44m 38s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/468/ : UNSTABLE in 3h 32m 48s