The contents of the the org.eclipse.releng.basebuilder were retrieved as follows:

$ cvs -d :pserver:anonymous@dev.eclipse.org/cvsroot/eclipse/ login
$ cvs -d :pserver:anonymous@dev.eclipse.org/cvsroot/eclipse/ checkout -r R3_6_2 org.eclipse.releng.basebuilder
$ find . -name "CVS" -exec rm -rf {} \;