buildbot failure in Mercurial on hg tests

[hgbuildbot at kublai.com]

The Buildbot has detected a new failure on builder hg tests while building hg.
Full details are available at:
 http://hgbuildbot.kublai.com/builders/hg%20tests/builds/189

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

Buildslave for this Build: l6

Build Reason: scheduler
Build Source Stamp: [branch default] 8299a9ad48dd46ca7ce5a405f06fa2dd16f1b236
Blamelist: Patrick Mezard <patrick at mezard.eu>

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

sincerely,
 -The Buildbot