error message should clearly indicate the module that failed, and how to continue

though the error reporting pushes most of the error information to a single location at the end, you need to scroll back and check which module was building at the time (or which is marked FAILED in the long list of modules) to determine where you were up to.

It would be helpful to list the module name (and perhaps goal) in the error contextually. It might also be worth adding the comment:

"After correcting this problem, you can resume the build with the command 'mvn /goals used/ -rf /module name/'"