Test Failure: System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException

[JulieLeeMSFT]

Build Information

Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1500785
Build error leg or test failing: System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException

Error Message

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

{
  "ErrorPattern": "System\\.Net\\.WebSockets\\.Client\\.Tests\\.CancelTest_\\w+Loopback\\.ConnectAsync_Cancel_ThrowsCancellationException[^\\n]*\\[FAIL\\]",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1500785
Error message validated: [System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException(useSsl: False) [FAIL]]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 7/9/2026 10:27:44 PM UTC

Report

Build	Repository	Test	Pull Request
1500785	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException

Summary

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

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1500785
Error message validated: [System\.Net\.WebSockets\.Client\.Tests\.CancelTest_\w+Loopback\.ConnectAsync_Cancel_ThrowsCancellationException[^\n]*\[FAIL\]]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 7/27/2026 3:30:50 AM UTC

Report

Build	Repository	Test	Pull Request
1500785	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException

Summary

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

Report

Build	Repository	Test	Pull Request
1584246	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException
1584228	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133291
1583971	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132572
1583964	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133265
1583864	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#130805
1583662	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException
1583627	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException
1582842	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133000
1582616	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133227
1582532	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException
1582547	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133000
1582427	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133222
1581856	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132965
1581844	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133202
1581811	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132861
1581820	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132042
1581677	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133115
1581312	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133176
1581072	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132965
1581040	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133173
1580781	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133165
1580542	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133079
1580470	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133153
1580398	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException
1580045	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133143
1579993	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133077
1579855	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException
1579803	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133000
1579790	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133132
1579748	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#130805
1579673	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException
1579334	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133117
1579594	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132981
1579541	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#131877
1579476	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133122
1579326	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133116
1579332	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133082
1579120	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133028
1579060	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#128981
1579027	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133100
1578779	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133000
1578705	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133049
1578680	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133081
1578375	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133070
1578382	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133072
1578356	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133069
1578334	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException
1578290	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#129506
1578265	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133068
1578223	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132953
1578140	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException
1578184	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132617
1578150	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132819
1578110	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#130050
1577089	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133002
1578018	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133057
1578006	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133040
1577994	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132420
1577826	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132102
1577832	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132221
1577792	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133052
1577740	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133042
1577618	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133046
1577553	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#130407
1577705	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133049
1577520	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132970
1577490	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132584
1577452	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133027
1577424	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132923
1577318	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132978
1577221	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132419
1577580	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133044
1577574	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133043
1577514	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#133038
1576966	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132827
1576853	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132970
1576828	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132978
1576377	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132999
1576312	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132117
1576288	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#131675
1576207	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException
1576162	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132260
1576148	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException
1575864	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#129683
1575857	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132955
1575846	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132989
1575801	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132420
1575198	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132809
1575675	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132814
1575616	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132986
1575548	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#131877
1575468	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132981
1575423	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#130723
1575374	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132978
1574742	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#131877
1574661	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132689
1574595	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException
1574644	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException
1574574	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132962
1574555	dotnet/runtime	System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException	#132821
Displaying 100 of 152 results

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
8	108	152

[dotnet-policy-service]

Tagging subscribers to this area: @karelz, @dotnet/ncl
See info in area-owners.md if you want to be subscribed.

[lewing]

Broadened the matcher from a fixed ErrorMessage on CancelTest_SharedHandler_Loopback to an ErrorPattern covering every CancelTest_*Loopback fixture, since the same test method is now failing the same way under other fixtures.

{
  "ErrorPattern": "System\\.Net\\.WebSockets\\.Client\\.Tests\\.CancelTest_\\w+Loopback\\.ConnectAsync_Cancel_ThrowsCancellationException[^\\n]*\\[FAIL\\]",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

The pattern matches SharedHandler_Loopback, HttpClient_Loopback, Invoker_Loopback and the *_Http2Loopback variants, and does not match *_External fixtures or other test methods on the same classes.

Recent occurrences

Latest hit is on dotnet/runtime#131401, build 1527384 — CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException(useSsl: False) on net11.0-windows-Debug-x86-coreclr_checked-Windows.10.Amd64.Open:

System.TimeoutException : The operation has timed out.
   at System.Threading.Tasks.TaskTimeoutExtensions.WhenAllOrAnyFailed(Task[] tasks, Int32 millisecondsTimeout)
   at System.Net.WebSockets.Client.Tests.LoopbackWebSocketServer.HttpRunner.RunAsync(...)
      in src/libraries/System.Net.WebSockets.Client/tests/LoopbackServer/LoopbackWebSocketServer.Http.cs:line 32

That PR only touches src/coreclr/jit/lclvars.cpp inside a #if ... || defined(TARGET_WASM) guard, so it is a no-op for a Windows x86 leg and cannot be the cause.

Failure history from the AzDO test-history API (7-day retention window, refs/pull/*):

Fixture	Runs	Failures	Dates
CancelTest_HttpClient_Loopback	8962	2	2026-07-24 (1524298), 2026-07-27 (1527384)
CancelTest_SharedHandler_Loopback	8962	0	—
CancelTest_Invoker_Loopback	8962	0	—

So roughly a 0.02% hit rate, matching what Build Analysis reports. The two HttpClient_Loopback hits are on unrelated PRs (#131177 and #131401), which is consistent with infrastructure/timing flakiness rather than a product regression. The original SharedHandler_Loopback hit that opened this issue was on 2026-07-09 and has not recurred since.

Note

This comment and the issue body update were generated by GitHub Copilot on behalf of @lewing.

[JulieLeeMSFT]

Failed in: runtime-coreclr libraries-jitstressregs/20260804.1

net11.0-windows-Release-x64-jitstressregs0x10-Windows.10.Amd64.Open
- System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException(useSsl: False)

[JulieLeeMSFT]

@wfurt, this test is blocking the libraries-jitstressregs pipeline from getting green. As we wait for a fix in the future, can you please disable the test?

[wfurt]

is there way how to identify hit stress runs? You can make the test conditional if you want to. Any more thoughts on this @karelz?

[JulieLeeMSFT]

If you look at the report above, it's also failing daily in runtime pipeline for PR runs.

[JulieLeeMSFT]

Failed in (2):

• runtime-coreclr libraries-jitstress 20260901.1
• runtime-coreclr libraries-jitstressregs 20260830.1

Failed tests:

runtime-coreclr libraries-jitstress
- net11.0-linux-Release-arm-disabler2r-(Debian.13.Arm32.Open)AzureLinux.3.Arm64.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:debian-13-helix-arm32v7@sha256:2ac4e961986424981bcbeb590b61c6db413bf7565d310c5e7ab13dfbedb2ee9d
- net11.0-linux-Release-arm-jitstress1-(Debian.13.Arm32.Open)AzureLinux.3.Arm64.Open@mcr.microsoft.com/dotnet-buildtools/prereqs:debian-13-helix-arm32v7@sha256:2ac4e961986424981bcbeb590b61c6db413bf7565d310c5e7ab13dfbedb2ee9d
- net11.0-linux-Release-arm64-jitstress2-AzureLinux.3.Arm64.Open
- net11.0-linux-Release-x64-jitstress2-AzureLinux.3.Amd64.Open
runtime-coreclr libraries-jitstressregs
- net11.0-windows-Release-x64-jitstressregs8-Windows.Amd64.Open.rt
  - System.Net.WebSockets.Client.Tests.CancelTest_HttpClient_Loopback.ConnectAsync_Cancel_ThrowsCancellationException
  - System.Net.WebSockets.Client.Tests.CancelTest_SharedHandler_Loopback.ConnectAsync_Cancel_ThrowsCancellationException