I believe it's because depot_tools presubmit is fetching infra/infra.git and tehn starts local rietveld server. Since it was turned read-only, end-2-end test fails.

I believe it's this commit from 3 hours ago: https://chromium.googlesource.com/infra/infra.git/+/81bcdb8aafb7a21c6ea4a7bd2ea86951b6cdf8f8

OH OH WE CAN JUST DELETE THESE TESTS NOW!!!!

pleasepleasepleasepleaseplease

Will do, first thing tomorrow!

Not sure if it's related but I'm also seeing failures of this form:

test_200 (__main__.OAuthRpcServerTest) ... ERROR:root:No support for OpenSSL has been found, OAuth2 support requires it.
ERROR:root:Installing pyopenssl will probably solve this issue.
RuntimeError: No OpenSSL support

https://luci-logdog.appspot.com/v/?s=infra%2Fbuildbucket%2Fcr-buildbucket.appspot.com%2F8967100806430922704%2F%2B%2Fsteps%2Fpresubmit%2F0%2Fstdout

https://chromium-review.googlesource.com/#/c/chromium/tools/depot_tools/+/693034

I think the first set of failures started when I landed the changes (because the .sh tests pull in a local version of rietveld) and the second set of Oauth failures started when I deployed the change (because rietveld_test.py talks to prod, apparently). Both should be fixed by the change above.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/tools/depot_tools/+/0a1f3f6ab34fd2d14cab4dd7fdb86c9a5b77ffe4

commit 0a1f3f6ab34fd2d14cab4dd7fdb86c9a5b77ffe4
Author: Aaron Gable <agable@chromium.org>
Date: Fri Sep 29 18:04:04 2017

Remove defunct Rietveld end-to-end tests

R=tandrii@chromium.org

Bug:  770019 
Change-Id: I55d74d67281bd3f79cfd5ba9f57eea082359573e
Reviewed-on: https://chromium-review.googlesource.com/693034
Commit-Queue: Aaron Gable <agable@chromium.org>
Reviewed-by: Andrii Shyshkalov <tandrii@chromium.org>

[delete] https://crrev.com/35c5b9ad1beb2550831fa1d39f5f12e354edd501/tests/abandon.sh
[delete] https://crrev.com/35c5b9ad1beb2550831fa1d39f5f12e354edd501/tests/patch.sh
[modify] https://crrev.com/0a1f3f6ab34fd2d14cab4dd7fdb86c9a5b77ffe4/PRESUBMIT.py
[delete] https://crrev.com/35c5b9ad1beb2550831fa1d39f5f12e354edd501/tests/upload-local-tracking-branch.sh
[delete] https://crrev.com/35c5b9ad1beb2550831fa1d39f5f12e354edd501/testing_support/local_rietveld.py
[delete] https://crrev.com/35c5b9ad1beb2550831fa1d39f5f12e354edd501/tests/basic.sh
[delete] https://crrev.com/35c5b9ad1beb2550831fa1d39f5f12e354edd501/tests/test-lib.sh
[delete] https://crrev.com/35c5b9ad1beb2550831fa1d39f5f12e354edd501/tests/post-land-hook-test.sh
[delete] https://crrev.com/35c5b9ad1beb2550831fa1d39f5f12e354edd501/tests/rietveld_test.py
[modify] https://crrev.com/0a1f3f6ab34fd2d14cab4dd7fdb86c9a5b77ffe4/fetch_configs/infra.py
[delete] https://crrev.com/35c5b9ad1beb2550831fa1d39f5f12e354edd501/tests/upload-stale.sh
[delete] https://crrev.com/35c5b9ad1beb2550831fa1d39f5f12e354edd501/tests/owners.sh
[delete] https://crrev.com/35c5b9ad1beb2550831fa1d39f5f12e354edd501/tests/push-from-logs.sh
[delete] https://crrev.com/35c5b9ad1beb2550831fa1d39f5f12e354edd501/tests/save-description-on-failure.sh
[delete] https://crrev.com/35c5b9ad1beb2550831fa1d39f5f12e354edd501/tests/submit-from-new-dir.sh
[delete] https://crrev.com/35c5b9ad1beb2550831fa1d39f5f12e354edd501/tests/hooks.sh

Nice!