[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/430/ : UNSTABLE in 1h 38m 02s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/426/ : UNSTABLE in 4h 12m 49s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/136/ : UNSTABLE in 4h 58m 16s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/430/ : UNSTABLE in 3h 36m 17s