Console log: 'System.Text.Json.Tests' from job 985956b1-db93-4331-922f-165028c2a62a workitem 79021414-22ca-44ec-8bc1-a8132986477c (azurelinux.3.amd64.open.rt) executed on machine a005R94 running Linux-6.6.104.2-4.azl3-x86_64-with-glibc2.38 + export __TestArchitecture=x64 + __TestArchitecture=x64 + ./RunTests.sh --runtime-path /datadisks/disk1/work/9B090887/p ========================= Begin custom configuration settings ============================== export __IsXUnitLogCheckerSupported=1 export XUNIT_HIDE_PASSING_OUTPUT_DIAGNOSTICS=1 ========================== End custom configuration settings =============================== ----- start Wed Nov 12 12:40:37 AM UTC 2025 =============== To repro directly: ===================================================== pushd . /datadisks/disk1/work/9B090887/p/dotnet exec --runtimeconfig System.Text.Json.Tests.runtimeconfig.json --depsfile System.Text.Json.Tests.deps.json xunit.console.dll System.Text.Json.Tests.dll -xml testResults.xml -nologo -nocolor -notrait category=IgnoreForCI -notrait category=OuterLoop -notrait category=failing popd =========================================================================================================== /datadisks/disk1/work/9B090887/w/9CCA08B2/e /datadisks/disk1/work/9B090887/w/9CCA08B2/e Discovering: System.Text.Json.Tests (method display = ClassAndMethod, method display options = None) Discovered: System.Text.Json.Tests (found 10071 of 10144 test cases) Starting: System.Text.Json.Tests (parallel test collections = on [2 threads], stop on fail = off) System.Text.Json.Serialization.Tests.PipeTests+PipeTests_AsyncWithSmallBuffer.CancelPendingReadThrows [FAIL] Assert.Throws() Failure: Exception type was not an exact match Expected: typeof(System.OperationCanceledException) Actual: typeof(System.NullReferenceException) ---- System.NullReferenceException : Object reference not set to an instance of an object. Stack Trace: /_/src/libraries/System.Text.Json/tests/System.Text.Json.Tests/Serialization/Pipe.ReadTests.cs(97,0): at System.Text.Json.Serialization.Tests.PipeTests.CancelPendingReadThrows() --- End of stack trace from previous location --- --- End of stack trace from previous location --- ----- Inner Stack Trace ----- /_/src/libraries/System.Text.Json/src/System/Text/Json/Serialization/PipeReadBufferState.cs(149,0): at System.Text.Json.Serialization.PipeReadBufferState.Dispose() /_/src/libraries/System.Text.Json/src/System/Text/Json/Serialization/Metadata/JsonTypeInfoOfT.ReadHelper.cs(54,0): at System.Text.Json.Serialization.Metadata.JsonTypeInfo`1.DeserializeAsync[TReadBufferState,TStream](TStream utf8Json, TReadBufferState bufferState, CancellationToken cancellationToken) /_/src/coreclr/System.Private.CoreLib/src/System/Runtime/CompilerServices/AsyncHelpers.CoreCLR.cs(467,0): at System.Runtime.CompilerServices.AsyncHelpers.RuntimeAsyncTaskCore.DispatchContinuations[T,TOps](T task) --- End of stack trace from previous location --- /_/src/libraries/System.Private.CoreLib/src/System/Runtime/CompilerServices/AsyncHelpers.cs(99,0): at System.Runtime.CompilerServices.AsyncHelpers.Await(Task task) at System.Text.Json.Serialization.Tests.PipeTests.<>c__DisplayClass4_0.b__0() --- End of stack trace from previous location --- System.Text.Json.Serialization.Tests.PipeTests+PipeTests_Async.CancelPendingReadThrows [FAIL] Assert.Throws() Failure: Exception type was not an exact match Expected: typeof(System.OperationCanceledException) Actual: typeof(System.NullReferenceException) ---- System.NullReferenceException : Object reference not set to an instance of an object. Stack Trace: /_/src/libraries/System.Text.Json/tests/System.Text.Json.Tests/Serialization/Pipe.ReadTests.cs(97,0): at System.Text.Json.Serialization.Tests.PipeTests.CancelPendingReadThrows() --- End of stack trace from previous location --- --- End of stack trace from previous location --- ----- Inner Stack Trace ----- /_/src/libraries/System.Text.Json/src/System/Text/Json/Serialization/PipeReadBufferState.cs(149,0): at System.Text.Json.Serialization.PipeReadBufferState.Dispose() /_/src/libraries/System.Text.Json/src/System/Text/Json/Serialization/Metadata/JsonTypeInfoOfT.ReadHelper.cs(54,0): at System.Text.Json.Serialization.Metadata.JsonTypeInfo`1.DeserializeAsync[TReadBufferState,TStream](TStream utf8Json, TReadBufferState bufferState, CancellationToken cancellationToken) /_/src/coreclr/System.Private.CoreLib/src/System/Runtime/CompilerServices/AsyncHelpers.CoreCLR.cs(467,0): at System.Runtime.CompilerServices.AsyncHelpers.RuntimeAsyncTaskCore.DispatchContinuations[T,TOps](T task) --- End of stack trace from previous location --- /_/src/libraries/System.Private.CoreLib/src/System/Runtime/CompilerServices/AsyncHelpers.cs(99,0): at System.Runtime.CompilerServices.AsyncHelpers.Await(Task task) at System.Text.Json.Serialization.Tests.PipeTests.<>c__DisplayClass4_0.b__0() --- End of stack trace from previous location --- Finished: System.Text.Json.Tests === TEST EXECUTION SUMMARY === System.Text.Json.Tests Total: 46926, Errors: 0, Failed: 2, Skipped: 0, Time: 349.073s /datadisks/disk1/work/9B090887/w/9CCA08B2/e ----- end Wed Nov 12 12:46:38 AM UTC 2025 ----- exit code 1 ---------------------------------------------------------- ulimit -c value: unlimited cat /proc/sys/kernel/core_pattern: /datadisks/disk1/dumps/core.%u.%p cat /proc/sys/kernel/core_uses_pid: 1 cat: /proc/sys/kernel/coredump_filter: No such file or directory cat /proc/sys/kernel/coredump_filter: Looking around for any Linux dumps... Looking for files matching core.* ... XUnitLogChecker status: 1 ----- start =============== XUnitLogChecker Output ===================================================== No dumps found in /datadisks/disk1/dumps. ----- end =============== XUnitLogChecker Output - exit code 0 =========================== + export _commandExitCode=0 + _commandExitCode=0 + /usr/bin/python3.12 /datadisks/disk1/work/9B090887/p/reporter/run.py https://dev.azure.com/dnceng-public/ public 33214012 eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsIng1dCI6IldGVmVXUzFXeWJURlFlRmJ1QXFVVU5CWUEwUSJ9.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.BuLh6jiyknHVRbuIo3gG3JY6g7QOWnWmHrSgKa6FEpH3qW3uWvjYOtR-QwW-_FE9CXLEtQX9fzuB5K2SQGrXR0muv23dG323rvGiiWCD1dUMSOqx7k8ZUrcGmiTIWo19IcnjghZJVTiM-siVaFCUAuhuiBtfCgNTtIVZKFUTR1Tl6T2lKxnDUK14oioX9xYiAu6sG_7SUAZgu78nZDTOgos_BFBSehAwaeR6pfOW8Nw7-ucCiD7JbkDBRQ05jszEXxijhk43embIzj4cOE1AUl8zikf2R8INDS04rFg6iC7yOak3VrbCjW23Ne8JVxmikFWgDp8Fdah695oFyyq_9w /etc/helix/scripts/azure/__init__.py:5: UserWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html. The pkg_resources package is slated for removal as early as 2025-11-30. Refrain from using this package or pin to Setuptools<81. import pkg_resources 2025-11-12T00:46:39.186Z INFO run.py managed_identity(151) __init__ ManagedIdentityCredential will use IMDS with client_id: 3423231b-6b9e-4177-8817-76276b647404 2025-11-12T00:46:39.186Z INFO run.py azure_utils(32) get_credential_and_access_token VMSSManagedIdentity VmssMIClientIdForUpload Auth type will be used 2025-11-12T00:46:39.250Z INFO run.py _universal(511) on_request Request URL: 'http://169.254.169.254/metadata/identity/oauth2/token?api-version=REDACTED&resource=REDACTED&client_id=REDACTED' Request method: 'GET' Request headers: 'Metadata': 'REDACTED' 'User-Agent': 'azsdk-python-identity/1.25.1 Python/3.12.9 (Linux-6.6.104.2-4.azl3-x86_64-with-glibc2.38)' No body was attached to the request 2025-11-12T00:46:39.262Z INFO run.py _universal(554) on_response Response status: 200 Response headers: 'Content-Type': 'application/json; charset=utf-8' 'Server': 'IMDS/150.870.65.1854' 'x-ms-request-id': '1cb0d716-694d-4ef3-9a13-acff29471741' 'Date': 'Wed, 12 Nov 2025 00:46:38 GMT' 'Content-Length': '2325' 2025-11-12T00:46:39.263Z INFO run.py msal_managed_identity_client(165) _get_token_base ImdsCredential.get_token succeeded 2025-11-12T00:46:39.263Z INFO run.py decorators(24) wrapper ManagedIdentityCredential.get_token succeeded 2025-11-12T00:46:39.263Z INFO run.py azure_utils(64) get_credential_and_access_token Credentials are valid 2025-11-12T00:46:39.264Z INFO run.py msal_managed_identity_client(165) _get_token_base ImdsCredential.get_token_info succeeded 2025-11-12T00:46:39.264Z INFO run.py decorators(24) wrapper ManagedIdentityCredential.get_token_info succeeded 2025-11-12T00:46:39.436Z INFO run.py run(48) main Beginning reading of test results. 2025-11-12T00:46:39.436Z INFO run.py __init__(42) read_results Searching '/datadisks/disk1/work/9B090887/w/9CCA08B2/e' for test results files 2025-11-12T00:46:39.437Z INFO run.py __init__(48) read_results Found results file /datadisks/disk1/work/9B090887/w/9CCA08B2/e/testResults.xml with format xunit 2025-11-12T00:46:39.899Z INFO run.py __init__(42) read_results Searching '/datadisks/disk1/work/9B090887/w/9CCA08B2/uploads' for test results files 2025-11-12T00:46:39.899Z INFO run.py packing_test_reporter(30) report_results Packing 46926 test reports to '/datadisks/disk1/work/9B090887/w/9CCA08B2/e/__test_report.json' 2025-11-12T00:46:40.092Z INFO run.py packing_test_reporter(33) report_results Packed 20894391 bytes + /usr/bin/python3.12 /datadisks/disk1/work/9B090887/p/gen-debug-dump-docs.py -buildid 1200358 -workitem System.Text.Json.Tests -jobid 985956b1-db93-4331-922f-165028c2a62a -outdir /datadisks/disk1/work/9B090887/w/9CCA08B2/uploads -templatedir /datadisks/disk1/work/9B090887/p -dumpdir /datadisks/disk1/dumps -productver 10.0.0 gen-debug-dump-docs.py: Did not find dumps, skipping dump docs generation. + exit 0 ['System.Text.Json.Tests' END OF WORK ITEM LOG: Command exited with 0]