❌20250815.7 / Build / browser-wasm windows Release LibraryTests / Build product and 3 more hits - wasm build failure in CI

❌20250805.2 / Build / browser-wasm windows Release LibraryTests_AOT / Build product and 1 more hits - wasm build failure in CI

❌20250805.61 / Build / browser-wasm windows Release SingleThreaded_BuildOnly / Build product - wasm build failure in CI

runtime /

❌We stopped hearing from agent NetCore-Svc-Public 19. Verify the agent machine is running and has a healthy network connection. Anything that terminates an agent process, starves it for CPU, or blocks its network access can cause this error. For more information, see: https://go.microsoft.com/fwlink/?linkid=846610

❌chrome-DebuggerTests.SteppingTests.WorkItemExecution - Unable to pull image from mcr.microsoft.com

❌System.Text.Json.Tests.WorkItemExecution - [8.0] System.Text.Json Stack overflow in JsonConverter

❌Workloads-NoWebcil-Wasm.Build.Tests.TestAppScenarios.WasmAppBuilderDebugLevelTests.WorkItemExecution - WasmAppBuilderDebugLevelTests timeout failure

❌System.Data.OleDb.Tests.WorkItemExecution - System.Data.OleDb.Tests timeout in net48 x86 Release leg

❌ComInterfaceGenerator.Unit.Tests.WorkItemExecution - Unable to pull image from mcr.microsoft.com

❌System.Security.Cryptography.X509Certificates.Tests.ChainTests.BuildChainForSelfSignedCertificate_WithSha256RsaSignature - [release/8.0-staging][android] CI failures in `System.Security.Cryptography.X509Certificates.Tests.ChainTests.BuildChainForSelfSignedCertificate`

❌System.Security.Cryptography.X509Certificates.Tests.ChainTests.BuildChainForSelfSignedCertificate_WithUnknownOidSignature - [release/8.0-staging][android] CI failures in `System.Security.Cryptography.X509Certificates.Tests.ChainTests.BuildChainForSelfSignedCertificate`

❌System.Security.Cryptography.Tests.WorkItemExecution - [release/8.0-staging][android] CI failures in `System.Security.Cryptography.X509Certificates.Tests.ChainTests.BuildChainForSelfSignedCertificate`

❌System.Security.Cryptography.X509Certificates.Tests.ChainTests.BuildChainForSelfSignedCertificate_WithSha256RsaSignature - [release/8.0-staging][android] CI failures in `System.Security.Cryptography.X509Certificates.Tests.ChainTests.BuildChainForSelfSignedCertificate`

❌System.Security.Cryptography.X509Certificates.Tests.ChainTests.BuildChainForSelfSignedCertificate_WithUnknownOidSignature - [release/8.0-staging][android] CI failures in `System.Security.Cryptography.X509Certificates.Tests.ChainTests.BuildChainForSelfSignedCertificate`

❌System.Security.Cryptography.Tests.WorkItemExecution - [release/8.0-staging][android] CI failures in `System.Security.Cryptography.X509Certificates.Tests.ChainTests.BuildChainForSelfSignedCertificate`

❌normal-Microsoft.Extensions.Options.SourceGeneration.Unit.Tests.WorkItemExecution - [wasm][AOT][net8.0] emcc : error - received SIGKILL (-9)

❌System.AppContext.Tests.WorkItemExecution - [android] Android.Device_Emulator.JIT.Test failing on emulators with CoreCLR

❌System.CodeDom.Tests.WorkItemExecution - [android] Android.Device_Emulator.JIT.Test failing on emulators with CoreCLR

❌System.Configuration.ConfigurationManager.Tests.WorkItemExecution - [android] Android.Device_Emulator.JIT.Test failing on emulators with CoreCLR

❌System.Diagnostics.Debug.Tests.WorkItemExecution - [android] Android.Device_Emulator.JIT.Test failing on emulators with CoreCLR

❌System.Diagnostics.Tools.Tests.WorkItemExecution - [android] Android.Device_Emulator.JIT.Test failing on emulators with CoreCLR

❌System.Diagnostics.TraceSource.Tests.WorkItemExecution - [android] Android.Device_Emulator.JIT.Test failing on emulators with CoreCLR

❌System.Globalization.Extensions.Tests.WorkItemExecution - [android] Android.Device_Emulator.JIT.Test failing on emulators with CoreCLR

❌System.Globalization.Tests.WorkItemExecution - [android] Android.Device_Emulator.JIT.Test failing on emulators with CoreCLR

❌System.IO.Hashing.Tests.WorkItemExecution - [android] Android.Device_Emulator.JIT.Test failing on emulators with CoreCLR

❌System.Linq.Parallel.Tests.WorkItemExecution - [android] Android.Device_Emulator.JIT.Test failing on emulators with CoreCLR

❌System.Linq.Queryable.Tests.WorkItemExecution - [android] Android.Device_Emulator.JIT.Test failing on emulators with CoreCLR

❌System.Net.HttpListener.Tests.WorkItemExecution - [android] Android.Device_Emulator.JIT.Test failing on emulators with CoreCLR

❌System.Net.Mail.Unit.Tests.WorkItemExecution - [android] Android.Device_Emulator.JIT.Test failing on emulators with CoreCLR

❌System.Net.Primitives.UnitTests.Tests.WorkItemExecution - [android] Android.Device_Emulator.JIT.Test failing on emulators with CoreCLR

❌System.Net.WebClient.Tests.WorkItemExecution - [android] Android.Device_Emulator.JIT.Test failing on emulators with CoreCLR

❌System.Net.WebHeaderCollection.Tests.WorkItemExecution - [android] Android.Device_Emulator.JIT.Test failing on emulators with CoreCLR

❌System.Net.WebProxy.Tests.WorkItemExecution - [android] Android.Device_Emulator.JIT.Test failing on emulators with CoreCLR

❌System.Private.Xml.Tests.WorkItemExecution - [android] Android.Device_Emulator.JIT.Test failing on emulators with CoreCLR

❌System.Reflection.Context.Tests.WorkItemExecution - [android] Android.Device_Emulator.JIT.Test failing on emulators with CoreCLR

❌System.Reflection.Emit.ILGeneration.Tests.WorkItemExecution - [android] Android.Device_Emulator.JIT.Test failing on emulators with CoreCLR

❌System.Reflection.Tests.WorkItemExecution - [android] Android.Device_Emulator.JIT.Test failing on emulators with CoreCLR

❌System.Resources.Reader.Tests.WorkItemExecution - [android] Android.Device_Emulator.JIT.Test failing on emulators with CoreCLR

❌System.Runtime.Extensions.Tests.WorkItemExecution - [android] Android.Device_Emulator.JIT.Test failing on emulators with CoreCLR

❌System.Runtime.Handles.Tests.WorkItemExecution - [android] Android.Device_Emulator.JIT.Test failing on emulators with CoreCLR

❌System.Runtime.Intrinsics.Tests.WorkItemExecution - [android] Android.Device_Emulator.JIT.Test failing on emulators with CoreCLR

❌System.Runtime.Serialization.Xml.Tests.WorkItemExecution - [android] Android.Device_Emulator.JIT.Test failing on emulators with CoreCLR

❌System.Security.SecureString.Tests.WorkItemExecution - [android] Android.Device_Emulator.JIT.Test failing on emulators with CoreCLR

❌System.Text.Encoding.Tests.WorkItemExecution - [android] Android.Device_Emulator.JIT.Test failing on emulators with CoreCLR

❌System.Text.Json.Tests.WorkItemExecution - [android] Android.Device_Emulator.JIT.Test failing on emulators with CoreCLR

❌System.Text.RegularExpressions.Unit.Tests.WorkItemExecution - [android] Android.Device_Emulator.JIT.Test failing on emulators with CoreCLR

❌System.Threading.Timer.Tests.WorkItemExecution - [android] Android.Device_Emulator.JIT.Test failing on emulators with CoreCLR

❌System.Xml.Linq.Streaming.Tests.WorkItemExecution - [android] Android.Device_Emulator.JIT.Test failing on emulators with CoreCLR

❌System.Xml.XmlSerializer.ReflectionOnly.Tests.WorkItemExecution - [android] Android.Device_Emulator.JIT.Test failing on emulators with CoreCLR

❌JIT_Methodical.WorkItemExecution - iOS tests failing with WORKLOAD TIMED OUT - Killing user command.

❌JIT_Regression.WorkItemExecution - iOS tests failing with WORKLOAD TIMED OUT - Killing user command.

❌JIT_opt.WorkItemExecution - iOS tests failing with WORKLOAD TIMED OUT - Killing user command.

❌GC_API.WorkItemExecution - iOS tests failing with WORKLOAD TIMED OUT - Killing user command.

❌JIT_Methodical.WorkItemExecution - iOS tests failing with WORKLOAD TIMED OUT - Killing user command.

The following build(s) were only partially analyzed due to the number of test errors and helix logs:
- [runtime-community]

🔹 [All failing tests from runtime]

⚠️ 2 failing tests not displayed for this pipeline due to space limitations

❌ System.Runtime.Tests.WorkItemExecution [Console] [Details] [Artifacts] [10.97% failure rate]

[ 🚧 Report test infrastructure issue] [ 📄 Report test repository issue]

This is a helix work item crash with status: BadExit. To investigate look the [Console log] / navigate to [Helix Artifacts]

Failing Configuration

• net8.0-android-Release-arm64-Mono_Release-Windows.11.Amd64.Android.Open

❌ System.Tests.TimeZoneInfoTests.NoBackwardTimeZones [Console] [Details] [Artifacts] [0.33% failure rate]

[ 🚧 Report test infrastructure issue] [ 📄 Report test repository issue]

Failing Configuration

• net8.0-android-Release-arm64-Mono_Release-Windows.11.Amd64.Android.Open

Exception Message

Assert.Equal() Failure
Expected: 596
Actual:   450 [Full log]

CallStack

   at System.Tests.TimeZoneInfoTests.NoBackwardTimeZones() in /_/src/libraries/System.Runtime/tests/System/TimeZoneInfoTests.cs:line 3177
   at System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(Object obj, IntPtr* args)
   at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)... [Full call stack]

❌ System.Tests.TimeZoneInfoTests.Platform_TimeZoneNames [Console] [Details] [Artifacts] [0.21% failure rate]

[ 🚧 Report test infrastructure issue] [ 📄 Report test repository issue]

This is a helix work item crash with status: BadExit. To investigate look the [Console log] / navigate to [Helix Artifacts]

Failing Configuration

• net8.0-android-Release-arm64-Mono_Release-Windows.11.Amd64.Android.Open

🔹 [All failing tests from runtime-coreclr outerloop]

❌ threading_group1.WorkItemExecution [Console] [Details] [Artifacts] [0.17% failure rate]

[ 🚧 Report test infrastructure issue] [ 📄 Report test repository issue]

This is a helix work item crash with status: Timeout. To investigate look the [Console log] / navigate to [Helix Artifacts]

Failing Configuration

• R2R-CG2 windows arm64 Checked no_tiered_compilation @ Windows.11.Arm64.Open

🔹 [All failing tests from runtime-extra-platforms]

⚠️ 38 failing tests not displayed for this pipeline due to space limitations

❌ baseservices_compilerservices.WorkItemExecution [Console] [Details] [Artifacts] [7.36% failure rate]

[ 🚧 Report test infrastructure issue] [ 📄 Report test repository issue]

This is a helix work item crash with status: DeadLetter. To investigate look the [Console log] / navigate to [Helix Artifacts]

Failing Configuration

• net8.0-iossimulator-Release-x64-Mono_Release-OSX.15.Amd64.Open