buildbot failure in Mercurial on OS X 10.7 hg tests

[hgbuildbot at kublai.com]

The Buildbot has detected a new failure on builder OS X 10.7 hg tests while building hg.
Full details are available at:
 http://hgbuildbot.kublai.com/builders/OS%20X%2010.7%20hg%20tests/builds/223

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

Buildslave for this Build: lion

Build Reason: scheduler
Build Source Stamp: [branch default] 99a2a4ae35e2180b7f825ef2677c36d538eac4ba
Blamelist: Matt Mackall <mpm at selenic.com>,Patrick Mezard <patrick at mezard.eu>

BUILD FAILED: failed http2

sincerely,
 -The Buildbot