Extend build server shutdown tracing

[jjonescz]

The output might look something like this:

❯ & "D:\sdk-3\.dotnet\dotnet.exe" exec D:\sdk-3\artifacts\bin\dotnet\Debug\net10.0\dotnet.dll build-server shutdown --vbcscompiler
Telemetry is: Disabled
Shutting down VB/C# compiler server...
Running D:\sdk-3\.dotnet\dotnet.exe exec D:\sdk-3\artifacts\bin\dotnet\Debug\net10.0\Roslyn\bincore\VBCSCompiler.dll -shutdown
> D:\sdk-3\.dotnet\dotnet.exe exec D:\sdk-3\artifacts\bin\dotnet\Debug\net10.0\Roslyn\bincore\VBCSCompiler.dll -shutdown
Process ID: 43340
< D:\sdk-3\.dotnet\dotnet.exe exec D:\sdk-3\artifacts\bin\dotnet\Debug\net10.0\Roslyn\bincore\VBCSCompiler.dll -shutdown exited with -2147450751 in 21 ms.
Shutting down 'microsoft.net.sdk.compilers.toolset' compilers.
Enumerating 'C:\.tools\.nuget\packages\microsoft.net.sdk.compilers.toolset'.
Found 'C:\.tools\.nuget\packages\microsoft.net.sdk.compilers.toolset\9.0.100-preview.7.24365.12\VBCSCompiler.exe'.
Running C:\.tools\.nuget\packages\microsoft.net.sdk.compilers.toolset\9.0.100-preview.7.24365.12\VBCSCompiler.exe -shutdown
> C:\.tools\.nuget\packages\microsoft.net.sdk.compilers.toolset\9.0.100-preview.7.24365.12\VBCSCompiler.exe -shutdown
Process ID: 22744
< C:\.tools\.nuget\packages\microsoft.net.sdk.compilers.toolset\9.0.100-preview.7.24365.12\VBCSCompiler.exe -shutdown exited with 0 in 112 ms.
Found 'C:\.tools\.nuget\packages\microsoft.net.sdk.compilers.toolset\9.0.101\VBCSCompiler.exe'.
Running C:\.tools\.nuget\packages\microsoft.net.sdk.compilers.toolset\9.0.101\VBCSCompiler.exe -shutdown
> C:\.tools\.nuget\packages\microsoft.net.sdk.compilers.toolset\9.0.101\VBCSCompiler.exe -shutdown
Process ID: 23660
< C:\.tools\.nuget\packages\microsoft.net.sdk.compilers.toolset\9.0.101\VBCSCompiler.exe -shutdown exited with 0 in 113 ms.

[ellahathaway]

Thank you!

[ellahathaway]

Related to dotnet/source-build#4796

[baronfel]

The arm64 failures on macOS have been pretty persistent - @marcpopMSFT mind merging this on red to get better diagnosis?

[ViktorHofer]

This broke the build :( Raced with b09e142

src/Cli/Microsoft.DotNet.Cli.Utils/Command.cs(44,28): error CS8600: (NETCORE_ENGINEERING_TELEMETRY=Build) Converting null literal or possible null value to non-nullable type.

[v-wuzhai]

@jaredpar I tried to resolve the build failure, but it seems there are still other issues. Could you take a look at #45411?