[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/490/ : UNSTABLE in 1h 42m 03s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/489/ : UNSTABLE in 3h 23m 09s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/205/ : SUCCESS in 3h 26m 35s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/492/ : UNSTABLE in 3h 26m 32s