[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/136/ : UNSTABLE in 1h 38m 17s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/128/ : UNSTABLE in 2h 52m 11s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/128/ : FAILURE in 5h 00m 00s