[test-results] Stable check of asterisk failed

[asteriskteam at digium.com]

Build failed.

- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-11/318/ : SUCCESS in 1h 38m 53s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-13/312/ : UNSTABLE in 2h 58m 50s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-14/20/ : UNSTABLE in 3h 15m 53s
- https://jenkins.asterisk.org/jenkins/job/periodic-asterisk-master/311/ : SUCCESS in 4h 18m 39s