Update README.rst

1 job for master in 7 minutes and 26 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Test
failed #384075
unit_tests

00:07:26

 
Name Stage Failure
failed
unit_tests Test
    
raise sa_exc.UnboundExecutionError(
"Could not locate a bind configured on %s or this Session" % (
> ', '.join(context)))
E UnboundExecutionError: Could not locate a bind configured on mapper Mapper|Config|config, SQL expression or this Session

/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py:1393: UnboundExecutionError
========= 1 failed, 190 passed, 2 xfailed, 429 error in 111.92 seconds =========
ERROR: Job failed: exit code 1