[WASM] browser-wasm tests fail with "Cannot box IsByRefLike type"

[liveans]

Build Information

Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=695082
Build error leg or test failing: Build browser-wasm linux Release LibraryTests_Threading

Error Message

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

{
  "ErrorPattern": "System.InvalidProgramException.*Cannot box IsByRefLike type",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=695082
Error message validated: [System.InvalidProgramException.*Cannot box IsByRefLike type]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 6/3/2024 6:16:35 PM UTC

Report

Build	Definition	Test	Pull Request
695911	dotnet/runtime	WasmTestOnFirefox-ST-System.Net.Http.Json.Unit.Tests.WorkItemExecution	#101443
696308	dotnet/runtime	WasmTestOnFirefox-ST-System.Net.Http.Json.Unit.Tests.WorkItemExecution	#102845
696281	dotnet/runtime	WasmTestOnFirefox-ST-System.Net.Primitives.Functional.Tests.WorkItemExecution	#103009
696193	dotnet/runtime	WasmTestOnChrome-ST-System.Net.Primitives.Functional.Tests.WorkItemExecution	#103005
695634	dotnet/runtime	WasmTestOnChrome-ST-System.Net.Primitives.Functional.Tests.WorkItemExecution	#102986
696246	dotnet/runtime	WasmTestOnChrome-ST-System.Net.Primitives.Functional.Tests.WorkItemExecution	#103008
696316	dotnet/runtime	WasmTestOnChrome-ST-System.Net.Primitives.Functional.Tests.WorkItemExecution	#102475
696268	dotnet/runtime	WasmTestOnChrome-ST-System.Net.Primitives.Functional.Tests.WorkItemExecution	#102928
696224	dotnet/runtime	WasmTestOnChrome-ST-System.Globalization.Calendars.Hybrid.WASM.Tests.WorkItemExecution
696179	dotnet/runtime	WasmTestOnChrome-ST-System.Net.Http.Json.Unit.Tests.WorkItemExecution	#102295
695848	dotnet/runtime	WasmTestOnChrome-ST-System.Net.Http.Json.Unit.Tests.WorkItemExecution	#102977
696139	dotnet/runtime	WasmTestOnChrome-MT-System.Net.WebSockets.Client.Tests.WorkItemExecution	#101801
695932	dotnet/runtime	WasmTestOnChrome-ST-System.Net.Http.Json.Functional.Tests.WorkItemExecution	#101547
696078	dotnet/runtime	WasmTestOnChrome-ST-System.Net.Mail.Functional.Tests.WorkItemExecution	#102379
696062	dotnet/runtime	WasmTestOnChrome-ST-System.Net.Http.Json.Unit.Tests.WorkItemExecution	#102967
695418	dotnet/runtime	WasmTestOnChrome-ST-System.Formats.Tar.Manual.Tests.WorkItemExecution	#102516
696041	dotnet/runtime	WasmTestOnChrome-ST-System.Diagnostics.Tracing.Tests.WorkItemExecution	#102679
695995	dotnet/runtime	WasmTestOnFirefox-ST-System.Runtime.CompilerServices.Unsafe.Tests.WorkItemExecution	#102998
696017	dotnet/runtime	WasmTestOnChrome-ST-System.Net.Http.Json.Functional.Tests.WorkItemExecution	#102992
695970	dotnet/runtime	WasmTestOnChrome-ST-System.Net.Http.Json.Unit.Tests.WorkItemExecution	#102996
695914	dotnet/runtime	WasmTestOnChrome-ST-System.Net.Http.Json.Unit.Tests.WorkItemExecution	#102994
695900	dotnet/runtime	WasmTestOnChrome-ST-System.Net.Http.Json.Unit.Tests.WorkItemExecution	#102993
695886	dotnet/runtime	WasmTestOnChrome-ST-System.Net.Http.Functional.Tests.WorkItemExecution	#102992
695893	dotnet/runtime	WasmTestOnChrome-ST-System.Net.Http.Json.Unit.Tests.WorkItemExecution	#102967
695882	dotnet/runtime	WasmTestOnFirefox-ST-System.Net.Http.Json.Unit.Tests.WorkItemExecution	#102989
695859	dotnet/runtime	WasmTestOnChrome-ST-System.Net.Http.Json.Unit.Tests.WorkItemExecution	#102991
695799	dotnet/runtime	WasmTestOnChrome-ST-System.Net.Http.Json.Unit.Tests.WorkItemExecution	#102699
695795	dotnet/runtime	WasmTestOnChrome-ST-System.Diagnostics.TextWriterTraceListener.Tests.WorkItemExecution	#102806
695686	dotnet/runtime	WasmTestOnChrome-ST-System.Globalization.Hybrid.WASM.Tests.WorkItemExecution	#102987
695616	dotnet/runtime	WasmTestOnChrome-ST-System.Net.Mail.Functional.Tests.WorkItemExecution	#102597
695594	dotnet/runtime	WasmTestOnChrome-ST-System.Net.Http.Json.Unit.Tests.WorkItemExecution	#102699
695082	dotnet/runtime	WasmTestOnChrome-ST-System.Net.Http.Json.Unit.Tests.WorkItemExecution	#102963

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
0	31	32

[dotnet-policy-service]

Tagging subscribers to 'arch-wasm': @lewing
See info in area-owners.md if you want to be subscribed.

[jkotas]

[07:12:13] fail: System.InvalidProgramException: Cannot box IsByRefLike type 'System.Span`1'
[07:12:13] fail:    at System.Version.TryFormatCore[Char](Span`1 destination, Int32 fieldCount, Int32& charsWritten)
[07:12:13] fail:    at System.Version.System.ISpanFormattable.TryFormat(Span`1 destination, Int32& charsWritten, ReadOnlySpan`1 format, IFormatProvider provider)
[07:12:13] fail:    at System.Text.ValueStringBuilder.AppendFormatHelper(IFormatProvider provider, String format, ReadOnlySpan`1 args)

Introduced by #102795

cc @AaronRobinsonMSFT @stephentoub Looks like Mono is missing byref-like generics support for some patterns.

[stephentoub]

Presumably that particular case is due to the change from MemoryMarshal.Cast<TChar, char>(destination) to Unsafe.BitCast<Span<TChar>, Span<char>>. I can submit a PR to undo those call sites if desirable, though that won't help with the next time one of these is hit. @AaronRobinsonMSFT / @lambdageek, is the long-term fix here for mono quick, or should I revert some of those uses until we can get it sorted out?

[lambdageek]

@stephentoub please revert for now. I'm a bit surprised there's a difference. I think the long term fix for mono is probably quick (most likely BitCast needs to be an intrinsic) but on the order of a week, not a few hours.

[lambdageek]

/cc @steveisok