The post-submit test builder Mac_x64 verify_binaries_pre_codesigned 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/Mac_x64%20verify_binaries_pre_codesigned/694
Commit: 2c5957a

Flaky builds:
https://ci.chromium.org/ui/p/flutter/builders/prod/Mac_x64%20verify_binaries_pre_codesigned/694
https://ci.chromium.org/ui/p/flutter/builders/prod/Mac_x64%20verify_binaries_pre_codesigned/682

Recent test runs:
https://flutter-dashboard.appspot.com/#/build?taskFilter=Mac_x64%20verify_binaries_pre_codesigned

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