[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/422/ : UNSTABLE in 1h 45m 52s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/419/ : UNSTABLE in 3h 21m 22s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/128/ : UNSTABLE in 2h 55m 52s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/422/ : UNSTABLE in 4h 53m 58s