- xUnit diagnostic messages were enabled in #2505 to help identify hung tests
- However, this also enables log messages for non-serializable theory data (https://github.com/aspnet/KestrelHttpServer/issues/2509), which adds noise to logs
- It doesn't seem possible to disable the "non-serializable data" messages but keep the "long-running test" messages
- Converting all tests to serializable theory data is expensive and complicates test code
- The best solution for now is to revert xUnit diagnostic messages to disabled, and re-enable when needed to identify hung tests
PackageLineup is a way to manage PackageReference versions across large projects. It removes the version information from the repository and instead pulls the information from an external "lineup" file.