dotnet build CLI issue with -v:n -bl in .NET 7 RC 1 builds

[jonathanpeppers]

Describe the bug

Let me begin by saying this is weird. Not sure if it is a dotnet CLI issue or MSBuild.

This started happening here: dotnet/android#7217

I found if you do:

$ dotnet build -v:n -bl Xamarin.Android.sln -t:Restore || echo "Exit code: $?"
...
Determining projects to restore...
Exit code: 1

This seems to work fine if I remove the -v:n argument. Such as: dotnet/android@17bc865

If I try .NET 7 Preview 6 (just tried latest public build):

Time Elapsed 00:00:02.31

The exit code isn't printed because it was a success (was 0).

To Reproduce

Install .NET 7.0.100-rc.1.22402.10, and run -t:Restore -bl -v:n on a .sln file? I don't think there is anything special about our .sln. I also think it might happen for any target? Nothing special about Restore.

Exceptions (if any)

None? .binlog does not have errors either?

Further technical details

.NET SDK:
 Version:   7.0.100-rc.1.22402.10
 Commit:    3faa96e7bf

Runtime Environment:
 OS Name:     Mac OS X
 OS Version:  12.4
 OS Platform: Darwin
 RID:         osx.12-arm64
 Base Path:   /Users/jopepper/src/xamarin-android/bin/Debug/dotnet/sdk/7.0.100-rc.1.22402.10/

Host:
  Version:      7.0.0-rc.1.22381.5
  Architecture: arm64
  Commit:       508fef51e8

.NET SDKs installed:
  7.0.100-rc.1.22402.10 [/Users/jopepper/src/xamarin-android/bin/Debug/dotnet/sdk]

.NET runtimes installed:
  Microsoft.AspNetCore.App 7.0.0-rc.1.22401.10 [/Users/jopepper/src/xamarin-android/bin/Debug/dotnet/shared/Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 7.0.0-rc.1.22381.5 [/Users/jopepper/src/xamarin-android/bin/Debug/dotnet/shared/Microsoft.NETCore.App]

Other architectures found:
  x64   [/usr/local/share/dotnet/x64]

Environment variables:
  Not set

global.json file:
  /Users/jopepper/src/xamarin-android/global.json

Learn more:
  https://aka.ms/dotnet/info

Download .NET:
  https://aka.ms/dotnet/download

[baronfel]

I just quickly tried this on Windows with 7.0.100-rc.1.22043.4 (the latest available to me from the installer repo table links) and couldn't reproduce the exit code error on my system. Not saying that you're not seeing a real problem, just that I couldn't quickly repro it.

[jonathanpeppers]

Ok, if I prepend my command with DOTNET_CLI_DO_NOT_USE_MSBUILD_SERVER=true it also seems to fix this.

$ DOTNET_CLI_DO_NOT_USE_MSBUILD_SERVER=true dotnet build -v:n -bl Xamarin.Android.sln -t:Restore || echo "Exit code: $?"
...
Time Elapsed 00:00:01.92

[baronfel]

@rokonec something for the team to check out

[rokonec]

@jonathanpeppers That you for great bug report. Thanks to it we have found and fixed yet another elusive bug.
We plant to merge it into msbuild tomorrow and it will flow into SDK soon.

[rokonec]

We believe it has been just fixed by related PR