[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/102/ : UNSTABLE in 1h 28m 35s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/93/ : UNSTABLE in 3h 29m 23s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/94/ : SUCCESS in 3h 53m 32s