In software development process, one of the things that developer is afraid of is breaking the build. Usually I do is to create another source code tree, then get the lastest code, then manually copy over changes from my working branch; finially start a release build from this test branch to verify everything is compilable. This process is very lengthy and time consuming if you have tons of code.

After I moved to a new development environment, we have this "Build Farm" environment, I think it is a very good way for developer to verify their code changes before check in the code.