Linux framework_tests_libraries flakes on bottom_navigation_bar_test #97162

00:32 +578: /b/s/w/ir/x/w/flutter/packages/flutter/test/material/bottom_navigation_bar_test.dart: BottomNavigationBar shifting backgroundColor with transition pump 3                                  
══╡ EXCEPTION CAUGHT BY FLUTTER TEST FRAMEWORK ╞════════════════════════════════════════════════════
The following _Exception was thrown while running async test code:
Exception: Skia Gold received an unapproved image in post-submit
testing. Golden file images in flutter/flutter are triaged
in pre-submit during code review for the given PR.

Visit https://flutter-gold.skia.org/ to view and approve
the image(s), or revert the associated change. For more
information, visit the wiki:
https://github.com/flutter/flutter/wiki/Writing-a-golden-file-test-for-package:flutter

Debug information for Gold:
stdout: Given image with hash fd670f425cd626eb861b54a513120299 for test
material.bottom_navigation_bar.shifting_transition.2
Expectation for test: 643ca9c7b96d87509653e26737b651b6 (positive)
Expectation for test: 281c2726e383bd5fc274cec9336cb9b5 (positive)
Expectation for test: 4706a5ff2cff8ba60f67a5a85504a406 (positive)
Expectation for test: e72b7b2c872edc845832fc0de8eb2386 (positive)
Expectation for test: 8af64924411135da193cb2c3ca21fa62 (positive)
Expectation for test: d052b5016c053abd0598eb79eb931d45 (positive)
Expectation for test: fe86884b8cba0d8caf8682d07a9cec76 (positive)
Expectation for test: 19892a539285264eb18efd76cdfac1b4 (positive)
Expectation for test: 251f92738e2247084de3dd647d40b9b2 (positive)
Expectation for test: 37b3ec2e4b2219ef6bac52a4a879562c (positive)
Expectation for test: 430a6f0f05ae730debdc7a6a72f04e33 (positive)
Expectation for test: 58810f08b7ced49c72ea11dc5cdb9a7a (positive)
Expectation for test: 6cd2aaad3dc42f05d26f105704184d7b (positive)
Expectation for test: a4b5b31f3a02fb62a6984c67bf29ed96 (positive)
Expectation for test: 04068f7c55c80dabd48285e8f3fe9386 (positive)
Expectation for test: 12ed26d9747a57b07b1aca3ecd1d4185 (positive)
Expectation for test: 2d8e80674d3ec04f9c7dd35b900825e6 (positive)
Untriaged or negative image:
https://flutter-gold.skia.org/detail?test=material.bottom_navigation_bar.shifting_transition.2&digest=fd670f425cd626eb861b54a513120299


stderr: Test: material.bottom_navigation_bar.shifting_transition.2 FAIL

When the exception was thrown, this was the stack:
#0      SkiaGoldClient.imgtestAdd (package:flutter_goldens_client/skia_client.dart:215:7)
<asynchronous suspension>
<asynchronous suspension>
(elided one frame from package:stack_trace)
════════════════════════════════════════════════════════════════════════════════════════════════════

00:32 +578 -1: /b/s/w/ir/x/w/flutter/packages/flutter/test/material/bottom_navigation_bar_test.dart: BottomNavigationBar shifting backgroundColor with transition pump 3 [E]                           
  Test failed. See exception logs above.
  The test description was: pump 3