[swarming] support str exit_code

This is followup of
https://chromium-review.googlesource.com/c/chromium/tools/build/+/1356689

python client outputs exit_code as str type.

Bug: 894045
Change-Id: I03ebed817b3a44787b85c1dfbc55533035d38d21
Reviewed-on: https://chromium-review.googlesource.com/c/1362260
Reviewed-by: Marc-Antoine Ruel <maruel@chromium.org>
Commit-Queue: Takuto Ikuta <tikuta@chromium.org>
220 files changed
tree: b7c705528aefa6ecd805beb3ce87cb53436d1bde
  1. infra/
  2. masters/
  3. scripts/
  4. site_config/
  5. slave/
  6. tests/
  7. third_party/
  8. .gitattributes
  9. .gitignore
  10. .vpython
  11. codereview.settings
  12. DEPS
  13. environment.cfg.py
  14. LICENSE
  15. OWNERS
  16. PRESUBMIT.py
  17. README.md
  18. WATCHLISTS
README.md

build

Hi build contributor! If you do any change in scripts/master/ or touching any master's html/ directories, you must restart master.chromium.fyi first and ensure that it still works before restarting other masters.

Recipes

If you're here to make a change to ‘recipes’ (the code located in scripts/slave/recipes*), please take a look at the README for more information pertaining to recipes.