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 Mercurial.
Full details are available at:
 http://hgbuildbot.kublai.com/builders/OS%20X%2010.7%20hg%20tests%20%28stable%29/builds/88

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

Buildslave for this Build: lion

Build Reason: The web-page 'force build' button was pressed by 'brendan': 

Build Source Stamp: [branch stable] HEAD
Blamelist: 

BUILD FAILED: failed run-test.py (python2.6) run-test.py (python2.7)

sincerely,
 -The Buildbot