module_test_ios is failing consistently on the release 2.8 beta release branch with the application crashing on startup. The changes included are in the dart sdk are:

dart-lang/sdk/issues/47654
dart-lang/sdk/issues/47644
dart-lang/sdk/issues/47641
dart-lang/sdk/issues/47640
dart-lang/sdk/issues/47639
dart-lang/sdk/issues/47657
dart-lang/sdk/issues/47661

This is a link to a build failure: https://ci.chromium.org/p/flutter/builders/try/Mac%20module_test_ios/10765