When the "test-with-buildbots" label is applied, Bedevere posts a comment to notify that builds have been scheduled, but the comment is quite unhelpful as it doesn't say how the results can be accessed.

It should be possible to add a hyperlink to the buildbot results page for the particular commit, or at least the given PR (for example https://buildbot.python.org/all/#/grid?branch=refs%2Fpull%2F30617%2Fmerge or https://buildbot.python.org/all/#/changes/14341 in the case above).