really useful commands to the build system (`./x.py`), which could save you a
lot of time.
-[rustcguidebuild]: https://rust-lang.github.io/rustc-guide/how-to-build-and-run.html
+[rustcguidebuild]: https://rust-lang.github.io/rustc-guide/building/how-to-build-and-run.html
## Pull Requests
[pull-requests]: #pull-requests