Build Log

Build Log is a structured list of the events which took place during a build. Generally, it includes entries on TeamCity-performed actions and output of the processes launched during the build. TeamCity captures the processes output and stores it in an internal format that allows for hierarchical display.

Build log is available for browsing at the Working with Build Results.

You can download a full build log in a textual form from the Build Results page using the link

"Important messages" sub-tab displays the log messages filtered by "error" and "warning" status.