#
# * check - Run the complete test suite
#
-# * clean - Clean the build repertory. It is advised to run this
+# * clean - Clean the build repository. It is advised to run this
# command if you want to build Rust again, after an update
# of the git repository.
#
# * tidy-basic - show file / line stats
# * tidy-errors - show the highest rustc error code
# * tidy-features - show the status of language and lib features
+# * rustc-stage$(stage) - Only build up to a specific stage
#
# Then mix in some of these environment variables to harness the
# ultimate power of The Rust Build System.