$ git push --set-upstream origin fix-bdf-fast-path
The clang-tidy check is disabled. To enable set the environment variable PRE_PUSH_CLANG_TIDY to any value.
Starting formatting checks.
Check "Formatting check" failed.
command: /Users/aaclarke/dev/engine/src/flutter/ci/format.sh 
working directory: /Users/aaclarke/dev/engine/src/flutter
exit code: 1
stdout:
Checking GN formatting...
Completed checking 0 GN files with no formatting problems.                                          
Checking Java formatting...
No Java files with changes, skipping Java format check.
Checking Python formatting...
To fix, run `et format` or:                                                                                   

git apply <<DONE
  /Users/aaclarke/dev/engine/src/flutter/tools/gn
Traceback (most recent call last):
  File "<frozen runpy>", line 198, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
  File "/Users/aaclarke/dev/engine/src/flutter/third_party/yapf/yapf/__main__.py", line 16, in <module>
    import yapf
  File "/Users/aaclarke/dev/engine/src/flutter/third_party/yapf/yapf/__init__.py", line 35, in <module>
    from yapf.yapflib import errors
  File "/Users/aaclarke/dev/engine/src/flutter/third_party/yapf/yapf/yapflib/errors.py", line 16, in <module>
    from lib2to3.pgen2 import tokenize
ModuleNotFoundError: No module named 'lib2to3'

DONE