Using the most recent sources and building in the source tree:

(
today=$(date +'%Y-%m-%d')
git clone --quiet git://git.savannah.gnu.org/emacs.git emacs-$today
cd ./emacs-$today
./autogen.sh >& /dev/null
./configure >& /dev/null
make bootstrap >& mk.out
make -k check |& tee check.out
)

I'm seeing three test failures:

3 unexpected results:
   FAILED  python-shell-buffer-substring-10
   FAILED  python-shell-buffer-substring-11
   FAILED  python-shell-buffer-substring-12
Please let me know if you need more details.

Regards,
  Vin Shelton

-- 
*If Cooperstown is calling, it's no fluke*