[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/512/ : UNSTABLE in 1h 48m 42s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/511/ : SUCCESS in 3h 27m 24s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/228/ : UNSTABLE in 3h 22m 28s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/514/ : FAILURE in 9m 52s