This caused the expresso-release canary to fail:

https://uberchromegw.corp.google.com/i/chromeos/builders/expresso-release/builds/620

chromite-0.0.2-r2607: 05:23:02: ERROR: ### LOG: scripts/export_to_gcloud_unittest
chromite-0.0.2-r2607: Traceback (most recent call last):
chromite-0.0.2-r2607:   File "scripts/export_to_gcloud_unittest", line 35, in <module>
chromite-0.0.2-r2607:     wrapper.DoMain()
chromite-0.0.2-r2607:   File "/mnt/host/source/chromite/scripts/wrapper.py", line 164, in DoMain
chromite-0.0.2-r2607:     commandline.ScriptWrapperMain(FindTarget)
chromite-0.0.2-r2607:   File "/mnt/host/source/chromite/lib/commandline.py", line 814, in ScriptWrapperMain
chromite-0.0.2-r2607:     target = find_target_func(target)
chromite-0.0.2-r2607:   File "/mnt/host/source/chromite/scripts/wrapper.py", line 139, in FindTarget
chromite-0.0.2-r2607:     module = cros_import.ImportModule(target)
chromite-0.0.2-r2607:   File "/mnt/host/source/chromite/lib/cros_import.py", line 43, in ImportModule
chromite-0.0.2-r2607:     module = __import__(target)
chromite-0.0.2-r2607:   File "/mnt/host/source/chromite/scripts/export_to_gcloud_unittest.py", line 12, in <module>
chromite-0.0.2-r2607:     from chromite.lib import cros_test_lib
chromite-0.0.2-r2607:   File "/mnt/host/source/chromite/lib/cros_test_lib.py", line 32, in <module>
chromite-0.0.2-r2607:     from chromite.lib import cidb
chromite-0.0.2-r2607:   File "/mnt/host/source/chromite/lib/cidb.py", line 28, in <module>
chromite-0.0.2-r2607:     import sqlalchemy
chromite-0.0.2-r2607:   File "/mnt/host/source/chromite/venv/venv/lib/python2.7/site-packages/sqlalchemy/__init__.py", line 9, in <module>
chromite-0.0.2-r2607:     from .sql import (
chromite-0.0.2-r2607:   File "/mnt/host/source/chromite/venv/venv/lib/python2.7/site-packages/sqlalchemy/sql/__init__.py", line 8, in <module>
chromite-0.0.2-r2607:     from .expression import (
chromite-0.0.2-r2607:   File "/mnt/host/source/chromite/venv/venv/lib/python2.7/site-packages/sqlalchemy/sql/expression.py", line 31, in <module>
chromite-0.0.2-r2607:     from .functions import func, modifier, FunctionElement, Function
chromite-0.0.2-r2607:   File "/mnt/host/source/chromite/venv/venv/lib/python2.7/site-packages/sqlalchemy/sql/functions.py", line 11, in <module>
chromite-0.0.2-r2607:     from . import sqltypes, schema
chromite-0.0.2-r2607:   File "/mnt/host/source/chromite/venv/venv/lib/python2.7/site-packages/sqlalchemy/sql/sqltypes.py", line 16, in <module>
chromite-0.0.2-r2607:     from .elements import quoted_name, type_coerce, _defer_name
chromite-0.0.2-r2607: UnicodeDecodeError: 'utf8' codec can't decode byte 0x85 in position 355: invalid start byte