See <https://builds.apache.org/job/sling-tooling-trunk-1.8/380/display/redirect>
- Jenkins build became unstable: sling-tooling-trunk-... Apache Jenkins Server
- Jenkins build is still unstable: sling-tooling-... Apache Jenkins Server
- Jenkins build is still unstable: sling-tool... Apache Jenkins Server
- Jenkins build is still unstable: sling-... Apache Jenkins Server
- Jenkins build is back to stable : s... Apache Jenkins Server
