Buildbot metrics page gives wrong results after a new bot gets added, because it wants results from all bots to compute an aggregate. There is a red warning in the grid below, but there is no reason why we can't provide an accurate aggregate.
Created attachment 237601 [details] 1. Fix red/green counters
Committed <http://trac.webkit.org/changeset/173260>.
Created attachment 237708 [details] 2. Fix times
Committed <http://trac.webkit.org/r173332>.