[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/541/ : UNSTABLE in 1h 42m 17s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/541/ : UNSTABLE in 3h 32m 31s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/259/ : UNSTABLE in 3h 53m 34s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/543/ : UNSTABLE in 3h 41m 51s