Installer test failed on osx_x64 - `.NativeHostApis.Breadcrumb_thread_does_not_finish_when_app_has_unhandled_exception`

[radical]

Installer Build and Test coreclr OSX_x64 Release on #56606
Failing test: Microsoft.DotNet.CoreSetup.Test.HostActivation.NativeHostApis.Breadcrumb_thread_does_not_finish_when_app_has_unhandled_exception

Build

          The command error output did not contain expected result: "Unhandled exception. System.Exception: Goodbye World""
File Name: /Users/runner/work/1/s/artifacts/tests/Release/ha/sharedFrameworkPublish/dotnet
Arguments: /Users/runner/work/1/s/artifacts/tests/Release/ha/fs12xn42.vls/PortableAppWithException/bin/PortableAppWithException.dll
Exit Code: 134
StdOut:
Hello World!


StdErr:
Tracing enabled @ Wed Aug 11 21:40:07 2021 UTC

.. snip ...

Launch host: /Users/runner/work/1/s/artifacts/tests/Release/ha/sharedFrameworkPublish/dotnet, app: /Users/runner/work/1/s/artifacts/tests/Release/ha/fs12xn42.vls/PortableAppWithException/bin/PortableAppWithException.dll, argc: 0, args: 
--- Begin breadcrumb write
Realpath CORE_BREADCRUMBS [/Users/runner/work/1/s/artifacts/tests/Release/ha/fnpwpiid.f40/PortableAppWithException/bin/opt/corebreadcrumbs]
Breadcrumb thread write callback...
Breadcrumbs will be written using a background thread
Unhandled exception. --- End breadcrumb write 1
System.Exception: Goodbye World!
   at PortableAppWithException.Program.Main(String[] args) in /Users/runner/work/1/s/artifacts/tests/Release/ha/fnpwpiid.f40/PortableAppWithException/Program.cs:line 15

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Issue Details

---

Installer Build and Test coreclr OSX_x64 Release on #56606
Failing test: Microsoft.DotNet.CoreSetup.Test.HostActivation.NativeHostApis.Breadcrumb_thread_does_not_finish_when_app_has_unhandled_exception

Build

          The command error output did not contain expected result: "Unhandled exception. System.Exception: Goodbye World""
File Name: /Users/runner/work/1/s/artifacts/tests/Release/ha/sharedFrameworkPublish/dotnet
Arguments: /Users/runner/work/1/s/artifacts/tests/Release/ha/fs12xn42.vls/PortableAppWithException/bin/PortableAppWithException.dll
Exit Code: 134
StdOut:
Hello World!


StdErr:
Tracing enabled @ Wed Aug 11 21:40:07 2021 UTC

.. snip ...

Launch host: /Users/runner/work/1/s/artifacts/tests/Release/ha/sharedFrameworkPublish/dotnet, app: /Users/runner/work/1/s/artifacts/tests/Release/ha/fs12xn42.vls/PortableAppWithException/bin/PortableAppWithException.dll, argc: 0, args: 
--- Begin breadcrumb write
Realpath CORE_BREADCRUMBS [/Users/runner/work/1/s/artifacts/tests/Release/ha/fnpwpiid.f40/PortableAppWithException/bin/opt/corebreadcrumbs]
Breadcrumb thread write callback...
Breadcrumbs will be written using a background thread
Unhandled exception. --- End breadcrumb write 1
System.Exception: Goodbye World!
   at PortableAppWithException.Program.Main(String[] args) in /Users/runner/work/1/s/artifacts/tests/Release/ha/fnpwpiid.f40/PortableAppWithException/Program.cs:line 15

Author:	radical
Assignees:	-
Labels:	area-Host, area-Infrastructure-installer, untriaged
Milestone:	-

[vitek-karas]

This looks very much like a problem with trace output. Two threads write to it and while it's synchronized the output is interleaved and the test validation fails because of it.

[elinor-fung]

I believe this was addressed with #69528