The upload step fails because the "hasProperties" method was added in the latest version of the buildbot. The build master is running 8.3 which only has "has_key" function.
Created attachment 102672 [details]
Comment on attachment 102672 [details]
Clearing flags on attachment: 102672
Committed r92220: <http://trac.webkit.org/changeset/92220>
All reviewed patches have been landed. Closing bug.