[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/487/ : UNSTABLE in 1h 41m 45s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/486/ : UNSTABLE in 3h 20m 04s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/202/ : UNSTABLE in 3h 19m 35s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/489/ : UNSTABLE in 4h 49m 19s