Building PublishProfile=DefaultContainer doesn't show output indicating a container image gets built. [.NET 9]

[tmds]

Output after building a container image:

❯ dotnet publish  /p:PublishProfile=DefaultContainer
Restore complete (1.6s)
  web succeeded (9.0s) → bin/Release/net9.0/publish/

Build succeeded in 11.8s

The output is exactly the same as when building the project as a (non-container) .NET app:

❯ dotnet publish 
Restore complete (1.6s)
  web succeeded (1.3s) → bin/Release/net9.0/publish/

Build succeeded in 4.2s

During the build, the PublishContainer show up. That is indicative of the container image being built. Once the build is finished, that message was overwritten.

With .NET 8, the base image and image being built are both shown on the terminal:

❯ dotnet publish  /p:PublishProfile=DefaultContainer
MSBuild version 17.8.5+b5265ef37 for .NET
  Determining projects to restore...
  All projects are up-to-date for restore.
  web -> /tmp/web/bin/Release/net8.0/web.dll
  web -> /tmp/web/bin/Release/net8.0/publish/
  Building image 'web' with tags 'latest' on top of base image 'mcr.microsoft.com/dotnet/aspnet:8.0'.
  Pushed image 'web:latest' to local registry via 'podman'.

cc @baronfel

[baronfel]

This is an expected side effect of the change to using Terminal Logger by default on .NET 9. The short term fix is to disable TL with -tl:off, but longer term TL needs to learn about:

• Intermediate progress reporting
• Reporting final outputs other than DLLs

Both of which we're tracking over at dotnet/msbuild.

[tmds]

Sounds like this is being addressed. Feel free to close the issue, or keep it open for visibility.