Console log: 'System.Net.NameResolution.Functional.Tests' from job 2a2805b3-a7a0-49bb-9498-b84aefaa7896 workitem d64b581e-d52d-4a09-a838-10ff83b8f542 (windows.server2025.amd64.open.rt) executed on machine a00HEDO running Windows-2025Server-10.0.26100-SP0 C:\h\w\AA6A097E\w\ADFF094C\e>set _NT_SYMBOL_PATH=C:\h\w\AA6A097E\p;C:\h\w\AA6A097E\p\PDB;C:\h\w\AA6A097E\p\shared\Microsoft.NETCore.App\12.0.0 C:\h\w\AA6A097E\w\ADFF094C\e>C:\h\w\AA6A097E\p\dotnet C:\h\w\AA6A097E\p\sos\tools\net6.0\any\dotnet-sos.dll install --architecture x64 Installing SOS to C:\Users\runner\.dotnet\sos Installing over existing installation... Creating installation directory... Copying files from C:\h\w\AA6A097E\p\sos\tools\net6.0\any\win-x64 Copying files from C:\h\w\AA6A097E\p\sos\tools\net6.0\any\lib Execute '.load C:\Users\runner\.dotnet\sos\sos.dll' to load SOS in your Windows debugger. Cleaning up... SOS install succeeded C:\h\w\AA6A097E\w\ADFF094C\e>taskkill.exe /f /im corerun.exe ERROR: The process "corerun.exe" not found. C:\h\w\AA6A097E\w\ADFF094C\e>set __TestArchitecture=x64 C:\h\w\AA6A097E\w\ADFF094C\e>call RunTests.cmd --runtime-path C:\h\w\AA6A097E\p ========================= Begin custom configuration settings ============================== set __IsXUnitLogCheckerSupported=1 set XUNIT_HIDE_PASSING_OUTPUT_DIAGNOSTICS=1 ========================== End custom configuration settings =============================== ----- start Wed 09/30/2026 11:52:38.20 =============== To repro directly: ===================================================== pushd C:\h\w\AA6A097E\w\ADFF094C\e\ "C:\h\w\AA6A097E\p\dotnet.exe" exec --runtimeconfig System.Net.NameResolution.Functional.Tests.runtimeconfig.json --depsfile System.Net.NameResolution.Functional.Tests.deps.json xunit.console.dll System.Net.NameResolution.Functional.Tests.dll -xml testResults.xml -nologo -nocolor -trait category=OuterLoop -notrait category=IgnoreForCI -notrait category=failing popd =========================================================================================================== C:\h\w\AA6A097E\w\ADFF094C\e>"C:\h\w\AA6A097E\p\dotnet.exe" exec --runtimeconfig System.Net.NameResolution.Functional.Tests.runtimeconfig.json --depsfile System.Net.NameResolution.Functional.Tests.deps.json xunit.console.dll System.Net.NameResolution.Functional.Tests.dll -xml testResults.xml -nologo -nocolor -trait category=OuterLoop -notrait category=IgnoreForCI -notrait category=failing Discovering: System.Net.NameResolution.Functional.Tests (method display = ClassAndMethod, method display options = None) Discovered: System.Net.NameResolution.Functional.Tests (found 22 of 141 test cases) Starting: System.Net.NameResolution.Functional.Tests (parallel test collections = on [2 threads], stop on fail = off) System.Net.NameResolution.Tests.DnsResolverTest.ResolveAddresses_NonExistent_ReturnsNxDomain(async: True) [FAIL] Assert.Equal() Failure: Values differ Expected: NxDomain Actual: ServerFailure Stack Trace: /_/src/libraries/System.Net.NameResolution/tests/FunctionalTests/DnsResolverTest.cs(297,0): at System.Net.NameResolution.Tests.DnsResolverTest.ResolveAddresses_NonExistent_ReturnsNxDomain(Boolean async) --- End of stack trace from previous location --- System.Net.NameResolution.Tests.DnsResolverTest.ResolveAddresses_NonExistent_CompletesPromptly [SKIP] Condition(s) not met: "IsOSX" Finished: System.Net.NameResolution.Functional.Tests === TEST EXECUTION SUMMARY === System.Net.NameResolution.Functional.Tests Total: 41, Errors: 0, Failed: 1, Skipped: 1, Time: 1.070s ----- end Wed 09/30/2026 11:52:40.09 ----- exit code 1 ---------------------------------------------------------- ERROR: The process "corerun.exe" not found. gen-debug-dump-docs.py: Did not find dumps, skipping dump docs generation. ['System.Net.NameResolution.Functional.Tests' END OF WORK ITEM LOG: Command exited with 0]