Intermittent failure starting a process

### Description

In microsoft/testfx repo, I'm seeing intermittent failures that look like this:

```
failed Invoke_TestTarget_With_Incompatible_Arch (24s 257ms)
Assert.Contains failed. String ' Determining projects to restore...
Restored D:\a\_work\1\s\artifacts\tmp\Release\testsuite\dvgGn\MSBuildTests\MSBuild Tests.csproj (in 2.47 sec).
MSBuild Tests -> D:\a\_work\1\s\artifacts\tmp\Release\testsuite\dvgGn\MSBuildTests\bin\Debug\net10.0\win-arm64\MSBuild Tests.dll
Run tests: 'D:\a\_work\1\s\artifacts\tmp\Release\testsuite\dvgGn\MSBuildTests\bin\Debug\net10.0\win-arm64\MSBuild Tests.dll' [net10.0|arm64]
D:\a\_work\1\s\artifacts\tmp\Release\testsuite\tOOCM\.packages\microsoft.testing.platform.msbuild\2.1.0-preview.25580.1\buildMultiTargeting\Microsoft.Testing.Platform.MSBuild.targets(347,5): error MSB6003: The specified task executable "MSBuild Tests.exe" could not be run. System.ComponentModel.Win32Exception (0x80004005): An error occurred trying to start process 'D:\a\_work\1\s\artifacts\tmp\Release\testsuite\dvgGn\MSBuildTests\bin\Debug\net10.0\win-arm64\MSBuild Tests.exe' with working directory 'D:\a\_work\1\s\artifacts\tmp\Release\testsuite\dvgGn\MSBuildTests'. The operation completed successfully. [D:\a\_work\1\s\artifacts\tmp\Release\testsuite\dvgGn\MSBuildTests\MSBuild Tests.csproj] [D:\a\_work\1\s\test\IntegrationTests\Microsoft.Testing.Platform.Acceptance.IntegrationTests\Microsoft.Testing.Platform.Acceptance.IntegrationTests.csproj]
##[error]artifacts\tmp\Release\testsuite\tOOCM\.packages\microsoft.testing.platform.msbuild\2.1.0-preview.25580.1\buildMultiTargeting\Microsoft.Testing.Platform.MSBuild.targets(347,5): error MSB6003: (NETCORE_ENGINEERING_TELEMETRY=Build) The specified task executable "MSBuild Tests.exe" could not be run. System.ComponentModel.Win32Exception (0x80004005): An error occurred trying to start process 'D:\a\_work\1\s\artifacts\tmp\Release\testsuite\dvgGn\MSBuildTests\bin\Debug\net10.0\win-arm64\MSBuild Tests.exe' with working directory 'D:\a\_work\1\s\artifacts\tmp\Release\testsuite\dvgGn\MSBuildTests'. The operation completed successfully. [D:\a\_work\1\s\artifacts\tmp\Release\testsuite\dvgGn\MSBuildTests\MSBuild Tests.csproj]
D:\a\_work\1\s\artifacts\tmp\Release\testsuite\tOOCM\.packages\microsoft.testing.platform.msbuild\2.1.0-preview.25580.1\buildMultiTargeting\Microsoft.Testing.Platform.MSBuild.targets(347,5): error MSB6003: at System.Diagnostics.Process.StartWithCreateProcess(ProcessStartInfo startInfo) [D:\a\_work\1\s\artifacts\tmp\Release\testsuite\dvgGn\MSBuildTests\MSBuild Tests.csproj] [D:\a\_work\1\s\test\IntegrationTests\Microsoft.Testing.Platform.Acceptance.IntegrationTests\Microsoft.Testing.Platform.Acceptance.IntegrationTests.csproj]
##[error]artifacts\tmp\Release\testsuite\tOOCM\.packages\microsoft.testing.platform.msbuild\2.1.0-preview.25580.1\buildMultiTargeting\Microsoft.Testing.Platform.MSBuild.targets(347,5): error MSB6003: (NETCORE_ENGINEERING_TELEMETRY=Build) at System.Diagnostics.Process.StartWithCreateProcess(ProcessStartInfo startInfo) [D:\a\_work\1\s\artifacts\tmp\Release\testsuite\dvgGn\MSBuildTests\MSBuild Tests.csproj]
D:\a\_work\1\s\artifacts\tmp\Release\testsuite\tOOCM\.packages\microsoft.testing.platform.msbuild\2.1.0-preview.25580.1\buildMultiTargeting\Microsoft.Testing.Platform.MSBuild.targets(347,5): error MSB6003: at Microsoft.Build.Utilities.ToolTask.StartToolProcess(Process proc) [D:\a\_work\1\s\artifacts\tmp\Release\testsuite\dvgGn\MSBuildTests\MSBuild Tests.csproj] [D:\a\_work\1\s\test\IntegrationTests\Microsoft.Testing.Platform.Acceptance.IntegrationTests\Microsoft.Testing.Platform.Acceptance.IntegrationTests.csproj]
##[error]artifacts\tmp\Release\testsuite\tOOCM\.packages\microsoft.testing.platform.msbuild\2.1.0-preview.25580.1\buildMultiTargeting\Microsoft.Testing.Platform.MSBuild.targets(347,5): error MSB6003: (NETCORE_ENGINEERING_TELEMETRY=Build) at Microsoft.Build.Utilities.ToolTask.StartToolProcess(Process proc) [D:\a\_work\1\s\artifacts\tmp\Release\testsuite\dvgGn\MSBuildTests\MSBuild Tests.csproj]
D:\a\_work\1\s\artifacts\tmp\Release\testsuite\tOOCM\.packages\microsoft.testing.platform.msbuild\2.1.0-preview.25580.1\buildMultiTargeting\Microsoft.Testing.Platform.MSBuild.targets(347,5): error MSB6003: at Microsoft.Build.Utilities.ToolTask.ExecuteTool(String pathToTool, String responseFileCommands, String commandLineCommands) [D:\a\_work\1\s\artifacts\tmp\Release\testsuite\dvgGn\MSBuildTests\MSBuild Tests.csproj] [D:\a\_work\1\s\test\IntegrationTests\Microsoft.Testing.Platform.Acceptance.IntegrationTests\Microsoft.Testing.Platform.Acceptance.IntegrationTests.csproj]
##[error]artifacts\tmp\Release\testsuite\tOOCM\.packages\microsoft.testing.platform.msbuild\2.1.0-preview.25580.1\buildMultiTargeting\Microsoft.Testing.Platform.MSBuild.targets(347,5): error MSB6003: (NETCORE_ENGINEERING_TELEMETRY=Build) at Microsoft.Build.Utilities.ToolTask.ExecuteTool(String pathToTool, String responseFileCommands, String commandLineCommands) [D:\a\_work\1\s\artifacts\tmp\Release\testsuite\dvgGn\MSBuildTests\MSBuild Tests.csproj]
D:\a\_work\1\s\artifacts\tmp\Release\testsuite\tOOCM\.packages\microsoft.testing.platform.msbuild\2.1.0-preview.25580.1\buildMultiTargeting\Microsoft.Testing.Platform.MSBuild.targets(347,5): error MSB6003: at Microsoft.Build.Utilities.ToolTask.Execute() [D:\a\_work\1\s\artifacts\tmp\Release\testsuite\dvgGn\MSBuildTests\MSBuild Tests.csproj] [D:\a\_work\1\s\test\IntegrationTests\Microsoft.Testing.Platform.Acceptance.IntegrationTests\Microsoft.Testing.Platform.Acceptance.IntegrationTests.csproj]
##[error]artifacts\tmp\Release\testsuite\tOOCM\.packages\microsoft.testing.platform.msbuild\2.1.0-preview.25580.1\buildMultiTargeting\Microsoft.Testing.Platform.MSBuild.targets(347,5): error MSB6003: (NETCORE_ENGINEERING_TELEMETRY=Build) at Microsoft.Build.Utilities.ToolTask.Execute() [D:\a\_work\1\s\artifacts\tmp\Release\testsuite\dvgGn\MSBuildTests\MSBuild Tests.csproj]
Build FAILED.
D:\a\_work\1\s\artifacts\tmp\Release\testsuite\tOOCM\.packages\microsoft.testing.platform.msbuild\2.1.0-preview.25580.1\buildMultiTargeting\Microsoft.Testing.Platform.MSBuild.targets(347,5): error MSB6003: The specified task executable "MSBuild Tests.exe" could not be run. System.ComponentModel.Win32Exception (0x80004005): An error occurred trying to start process 'D:\a\_work\1\s\artifacts\tmp\Release\testsuite\dvgGn\MSBuildTests\bin\Debug\net10.0\win-arm64\MSBuild Tests.exe' with working directory 'D:\a\_work\1\s\artifacts\tmp\Release\testsuite\dvgGn\MSBuildTests'. The operation completed successfully. [D:\a\_work\1\s\artifacts\tmp\Release\testsuite\dvgGn\MSBuildTests\MSBuild Tests.csproj] [D:\a\_work\1\s\test\IntegrationTests\Microsoft.Testing.Platform.Acceptance.IntegrationTests\Microsoft.Testing.Platform.Acceptance.IntegrationTests.csproj]
##[error]artifacts\tmp\Release\testsuite\tOOCM\.packages\microsoft.testing.platform.msbuild\2.1.0-preview.25580.1\buildMultiTargeting\Microsoft.Testing.Platform.MSBuild.targets(347,5): error MSB6003: (NETCORE_ENGINEERING_TELEMETRY=Build) The specified task executable "MSBuild Tests.exe" could not be run. System.ComponentModel.Win32Exception (0x80004005): An error occurred trying to start process 'D:\a\_work\1\s\artifacts\tmp\Release\testsuite\dvgGn\MSBuildTests\bin\Debug\net10.0\win-arm64\MSBuild Tests.exe' with working directory 'D:\a\_work\1\s\artifacts\tmp\Release\testsuite\dvgGn\MSBuildTests'. The operation completed successfully. [D:\a\_work\1\s\artifacts\tmp\Release\testsuite\dvgGn\MSBuildTests\MSBuild Tests.csproj]
D:\a\_work\1\s\artifacts\tmp\Release\testsuite\tOOCM\.packages\microsoft.testing.platform.msbuild\2.1.0-preview.25580.1\buildMultiTargeting\Microsoft.Testing.Platform.MSBuild.targets(347,5): error MSB6003: at System.Diagnostics.Process.StartWithCreateProcess(ProcessStartInfo startInfo) [D:\a\_work\1\s\artifacts\tmp\Release\testsuite\dvgGn\MSBuildTests\MSBuild Tests.csproj] [D:\a\_work\1\s\test\IntegrationTests\Microsoft.Testing.Platform.Acceptance.IntegrationTests\Microsoft.Testing.Platform.Acceptance.IntegrationTests.csproj]
##[error]artifacts\tmp\Release\testsuite\tOOCM\.packages\microsoft.testing.platform.msbuild\2.1.0-preview.25580.1\buildMultiTargeting\Microsoft.Testing.Platform.MSBuild.targets(347,5): error MSB6003: (NETCORE_ENGINEERING_TELEMETRY=Build) at System.Diagnostics.Process.StartWithCreateProcess(ProcessStartInfo startInfo) [D:\a\_work\1\s\artifacts\tmp\Release\testsuite\dvgGn\MSBuildTests\MSBuild Tests.csproj]
D:\a\_work\1\s\artifacts\tmp\Release\testsuite\tOOCM\.packages\microsoft.testing.platform.msbuild\2.1.0-preview.25580.1\buildMultiTargeting\Microsoft.Testing.Platform.MSBuild.targets(347,5): error MSB6003: at Microsoft.Build.Utilities.ToolTask.StartToolProcess(Process proc) [D:\a\_work\1\s\artifacts\tmp\Release\testsuite\dvgGn\MSBuildTests\MSBuild Tests.csproj] [D:\a\_work\1\s\test\IntegrationTests\Microsoft.Testing.Platform.Acceptance.IntegrationTests\Microsoft.Testing.Platform.Acceptance.IntegrationTests.csproj]
##[error]artifacts\tmp\Release\testsuite\tOOCM\.packages\microsoft.testing.platform.msbuild\2.1.0-preview.25580.1\buildMultiTargeting\Microsoft.Testing.Platform.MSBuild.targets(347,5): error MSB6003: (NETCORE_ENGINEERING_TELEMETRY=Build) at Microsoft.Build.Utilities.ToolTask.StartToolProcess(Process proc) [D:\a\_work\1\s\artifacts\tmp\Release\testsuite\dvgGn\MSBuildTests\MSBuild Tests.csproj]
D:\a\_work\1\s\artifacts\tmp\Release\testsuite\tOOCM\.packages\microsoft.testing.platform.msbuild\2.1.0-preview.25580.1\buildMultiTargeting\Microsoft.Testing.Platform.MSBuild.targets(347,5): error MSB6003: at Microsoft.Build.Utilities.ToolTask.ExecuteTool(String pathToTool, String responseFileCommands, String commandLineCommands) [D:\a\_work\1\s\artifacts\tmp\Release\testsuite\dvgGn\MSBuildTests\MSBuild Tests.csproj] [D:\a\_work\1\s\test\IntegrationTests\Microsoft.Testing.Platform.Acceptance.IntegrationTests\Microsoft.Testing.Platform.Acceptance.IntegrationTests.csproj]
##[error]artifacts\tmp\Release\testsuite\tOOCM\.packages\microsoft.testing.platform.msbuild\2.1.0-preview.25580.1\buildMultiTargeting\Microsoft.Testing.Platform.MSBuild.targets(347,5): error MSB6003: (NETCORE_ENGINEERING_TELEMETRY=Build) at Microsoft.Build.Utilities.ToolTask.ExecuteTool(String pathToTool, String responseFileCommands, String commandLineCommands) [D:\a\_work\1\s\artifacts\tmp\Release\testsuite\dvgGn\MSBuildTests\MSBuild Tests.csproj]
D:\a\_work\1\s\artifacts\tmp\Release\testsuite\tOOCM\.packages\microsoft.testing.platform.msbuild\2.1.0-preview.25580.1\buildMultiTargeting\Microsoft.Testing.Platform.MSBuild.targets(347,5): error MSB6003: at Microsoft.Build.Utilities.ToolTask.Execute() [D:\a\_work\1\s\artifacts\tmp\Release\testsuite\dvgGn\MSBuildTests\MSBuild Tests.csproj] [D:\a\_work\1\s\test\IntegrationTests\Microsoft.Testing.Platform.Acceptance.IntegrationTests\Microsoft.Testing.Platform.Acceptance.IntegrationTests.csproj]
##[error]artifacts\tmp\Release\testsuite\tOOCM\.packages\microsoft.testing.platform.msbuild\2.1.0-preview.25580.1\buildMultiTargeting\Microsoft.Testing.Platform.MSBuild.targets(347,5): error MSB6003: (NETCORE_ENGINEERING_TELEMETRY=Build) at Microsoft.Build.Utilities.ToolTask.Execute() [D:\a\_work\1\s\artifacts\tmp\Release\testsuite\dvgGn\MSBuildTests\MSBuild Tests.csproj]
0 Warning(s)
1 Error(s)
Time Elapsed 00:00:20.43' does not contain string 'The specified executable is not a valid application for this OS platform.'.
```

The error:

> System.ComponentModel.Win32Exception (0x80004005): An error occurred trying to start process 'D:\a\_work\1\s\artifacts\tmp\Release\testsuite\dvgGn\MSBuildTests\bin\Debug\net10.0\win-arm64\MSBuild Tests.exe' with working directory 'D:\a\_work\1\s\artifacts\tmp\Release\testsuite\dvgGn\MSBuildTests'. The operation completed successfully.

doesn't make sense to me. It feels like Win32 API for starting process indicated failure, but last exit code was zero, which is how it ended up in "The operation completed successfully" failure. That feels unexpected.

### Reproduction Steps

None that I have to reliably reproduce. But the error makes no sense.

### Expected behavior

More sensible error message, or just works.

### Actual behavior

Error messages that doesn't make a lot of sense.

### Regression?

Not sure.

### Known Workarounds

_No response_

### Configuration

_No response_

### Other information

_No response_