step to save build log?
 

Is there an easy way to automatically save off to a file the whole build log for the build before the build script exits?

For a text log file, use the Copy Files action or a Run Program action with a command of

%DOSCMD% copy "%LOGFILE%" "c:\path\to\copyto"

For an XML log file, use the Transform XML Log action (clear out the XSLT stylesheet field).