buildbot failure in Mercurial on OS X 10.7 hg tests (stable)

[hgbuildbot at kublai.com]

The Buildbot has detected a new failure on builder OS X 10.7 hg tests (stable) while building hg.
Full details are available at:
 http://hgbuildbot.kublai.com/builders/OS%20X%2010.7%20hg%20tests%20%28stable%29/builds/162

Buildbot URL: http://hgbuildbot.kublai.com/

Buildslave for this Build: lion

Build Reason: scheduler
Build Source Stamp: [branch stable] 98166640b356b4c44bc87ce9137c7647eb728332
Blamelist: Mads Kiilerich <mads at kiilerich.com>,Michael Bacarella <mbacarella at janestreet.com>,Patrick Mezard <patrick at mezard.eu>,Pierre-Yves.David at ens-lyon.org

BUILD FAILED: failed run-tests.py (python2.6) http2

sincerely,
 -The Buildbot