Linux customer_testing is 2.00% flaky

[fluttergithubbot]

The post-submit test builder Linux customer_testing had a flaky ratio 2.00% for the past (up to) 100 commits, which is above our 2.00% threshold.

One recent flaky example for a same commit: https://ci.chromium.org/ui/p/flutter/builders/prod/Linux%20customer_testing/19403
Commit: 73fb6c7

Flaky builds:
https://ci.chromium.org/ui/p/flutter/builders/prod/Linux%20customer_testing/19403
https://ci.chromium.org/ui/p/flutter/builders/prod/Linux%20customer_testing/19364

Recent test runs:
https://flutter-dashboard.appspot.com/#/build?taskFilter=Linux%20customer_testing

Please follow https://github.com/flutter/flutter/wiki/Reducing-Test-Flakiness#fixing-flaky-tests to fix the flakiness and enable the test back after validating the fix (internal dashboard to validate: go/flutter_test_flakiness).

[goderbauer]

One of these is the same analyzer crash as also seen on Mac: #149231 (comment)

[fluttergithubbot]

[prod pool] flaky ratio for the past (up to) 100 commits between 2024-05-28 and 2024-06-04 is 1.00%. Flaky number: 1; total number: 100.
One recent flaky example for a same commit: https://ci.chromium.org/ui/p/flutter/builders/prod/Linux%20customer_testing/19426
Commit: 35ae519
Flaky builds:
https://ci.chromium.org/ui/p/flutter/builders/prod/Linux%20customer_testing/19426

Recent test runs:
https://flutter-dashboard.appspot.com/#/build?taskFilter=Linux%20customer_testing

[goderbauer]

The analyhzer crash seems to be gone. The new failure is a timeout in the zulip tests:

| 00:51 +1005 ~2 -1: /b/s/w/ir/x/t/flutter_customer_testing.zulip.EQJPYX/tests/test/model/store_test.dart: UpdateMachine.load retries registerQueue on NetworkError [E]
|   Bad state: Exceeded timeout 1:00:00.000000 while flushing timers
|   package:fake_async/fake_async.dart 217:9   FakeAsync.flushTimers.<fn>
|   package:fake_async/fake_async.dart 241:21  FakeAsync._fireTimersWhile
|   package:fake_async/fake_async.dart 214:5   FakeAsync.flushTimers
|   test/fake_async.dart 29:7                  awaitFakeAsync
|   test/model/store_test.dart 176:57          main.<fn>.<fn>

[goderbauer]

cc @gnprice for zulip

[gnprice]

Thanks. We've seen that flake a handful of times before:
zulip/zulip-flutter#602
but now that we're in flutter/tests we should really clean it up, because there's a lot more PRs per week in the Flutter repo than in Zulip. I'll go investigate, and either fix the test or disable it.

Then I believe that's the only known flaky test in the zulip-flutter repo. (Though I suppose if we have any really low-frequency flakes, then flutter/tests may be what eventually causes us to notice them!)

[github-actions]

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