**If you believe reporting your bug publicly represents a security risk to Rust users,
please follow our [instructions for reporting security vulnerabilities](https://www.rust-lang.org/policies/security)**.
+If you're using the nightly channel, please check if the bug exists in the
+latest toolchain before filing your bug. It might be fixed already.
+
If you have the chance, before reporting a bug, please [search existing
issues](https://github.com/rust-lang/rust/search?q=&type=Issues&utf8=%E2%9C%93),
as it's possible that someone else has already reported your error. This doesn't
Please make sure your pull request is in compliance with Rust's style
guidelines by running
- $ python x.py test src/tools/tidy
+ $ python x.py test tidy
Make this check before every pull request (and every new commit in a pull
request); you can add [git hooks](https://git-scm.com/book/en/v2/Customizing-Git-Git-Hooks)