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-rw-r--r--README.md3
1 files changed, 2 insertions, 1 deletions
diff --git a/README.md b/README.md
index 822335fc65f..73b0167d363 100644
--- a/README.md
+++ b/README.md
@@ -162,7 +162,8 @@ define the `CLIPPY_DISABLE_DOCS_LINKS` environment variable.
 
 You can add options to your code to `allow`/`warn`/`deny` Clippy lints:
 
-*   the whole set of `Warn` lints using the `clippy` lint group (`#![deny(clippy::all)]`)
+*   the whole set of `Warn` lints using the `clippy` lint group (`#![deny(clippy::all)]`).
+    Note that `rustc` has additional [lint groups](https://doc.rust-lang.org/rustc/lints/groups.html).
 
 *   all lints using both the `clippy` and `clippy::pedantic` lint groups (`#![deny(clippy::all)]`,
     `#![deny(clippy::pedantic)]`). Note that `clippy::pedantic` contains some very aggressive