[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/540/ : UNSTABLE in 1h 42m 00s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/540/ : SUCCESS in 3h 22m 35s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/258/ : UNSTABLE in 3h 53m 05s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/542/ : SUCCESS in 3h 42m 41s