Buildbucket is returning zero results for the query url:

https://cr-buildbucket.appspot.com/_ah/api/buildbucket/v1/search?max_builds=500&fields=builds(failure_reason%2Cid%2Cparameters_json%2Cresult%2Cstatus%2Ctags%2Curl)&tag=buildset%3Apatch%2Fgerrit%2Fskia-review.googlesource.com%2F6352%2F6

Why is it using that URL and not:
https://cr-buildbucket.appspot.com/_ah/api/buildbucket/v1/search?max_builds=500&fields=builds(failure_reason%2Cid%2Cparameters_json%2Cresult%2Cstatus%2Ctags%2Curl)&tag=buildset%3Apatch%2Fgerrit%2Fskia-review.googlesource.com%2F6352%2F12

Yeah that's what I'm trying to figure out. Turns out I didn't understand js sorting correctly. Fix here: https://chromium-review.googlesource.com/426942

The following revision refers to this bug:
  https://chromium.googlesource.com/infra/gerrit-plugins/buildbucket/+/9dd66d38050dbb1f2c1cb2183061be978b967073

commit 9dd66d38050dbb1f2c1cb2183061be978b967073
Author: Aaron Gable <agable@chromium.org>
Date: Wed Jan 11 19:15:57 2017

Fix revision sorting function to return ints

I'd misunderstood the compareFunction parameter to sort(), and
was having it return bools instead of ints.

BUG= 680206 

Change-Id: I2eecdd08a66243f6df878379e9b17558795a7845

[modify] https://crrev.com/9dd66d38050dbb1f2c1cb2183061be978b967073/src/main/resources/static/buildbucket.js

I know the fix is in. Just wanted to update the description since so many people are running into this.

 Issue 674252  has been merged into this issue.

 Issue 681144  has been merged into this issue.

The rollout containing this fix happened today.

This is still happening: https://skia-review.googlesource.com/c/7130/12

Did something get rolled back?

Wanted to point out that at  https://skia-review.googlesource.com/c/7130/12 right now there are trybots showing up, but they're trybot runs from the wrong patch set. The original report seems to be that no bots showed up.

Yes, when I go into the sources tab of the inspector on that review and look at the buildbucket.js that is running, it is definitely showing the old version of the code (using < in the sort function on line 47, instead of -). I'm not sure what's going on there.

Hmm, looks like something went wrong and the CL containing the fix was never imported at all. This is concerning. I'm going to do another import of the buildbucket plugin today and will keep you updated.

I was previously misinformed; the previous import and deployment missed the fix for this by one CL. The correct import is here: cl/146143061.

This has now actually been deployed.