[wasm][mt] Index was outside the bounds of the array.

[lewing]

Build Information

Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=776304
Build error leg or test failing: WasmTestOnFirefox-MT-System.Collections.Immutable.Tests.WorkItemExecution
Pull request: #106426

Error Message

Fill the error message using step by step known issues guidance.

{
  "ErrorMessage": "System.AggregateException : One or more errors occurred. (Index was outside the bounds of the array.)",
  "ErrorPattern": "",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=776304
Error message validated: [System.AggregateException : One or more errors occurred. (Index was outside the bounds of the array.)]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 8/15/2024 5:45:40 PM UTC

Report

Build	Definition	Test	Pull Request
869426	dotnet/runtime	System.Collections.Immutable.Tests.ImmutableArrayTest.AddThreadSafety	#109523

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
1	1	1

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[ilonatommy]

This was hit only twice just after reporting and not any more:

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
0	0	2