The post-submit test builder Linux_android spell_check_test, which has been marked bringup: true, had 28 flakes over past 100 commits.

One recent flaky example for a same commit: https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1608
Commit: 128b94e

Flaky builds:
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1608
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1603
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1595
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1592
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1591
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1590
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1588
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1587
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1584
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1583
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1581
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1574
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1573
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1566
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1565
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1559
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1558
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1557
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1556
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1555
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1554
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1547
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1545
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1541
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1540
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1537
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1536
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1534
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1530
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1529
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1524
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1504
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1502
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1501
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1499
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1498
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1497
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1493
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1492
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1491
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1489
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1488
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1487
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1486
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1484
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1479
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1477
https://ci.chromium.org/ui/p/flutter/builders/staging/Linux_android%20spell_check_test/1476

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

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).