From a11e5c210a456ddccbc080dabcbbd1cbf2124972 Mon Sep 17 00:00:00 2001
From: bors <bors@rust-lang.org>
Date: Tue, 28 Dec 2021 09:29:08 +0000
Subject: [PATCH] Readme: note that config changes don't apply to already
 compiled code

*Please write a short comment explaining your change (or "none" for internal only changes)*

changelog: added a note to the Readme that config changes don't apply to already compiled code
---
 README.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/README.md b/README.md
index 73b0167d363..ce277d56b94 100644
--- a/README.md
+++ b/README.md
@@ -155,6 +155,10 @@ cognitive-complexity-threshold = 30
 See the [list of lints](https://rust-lang.github.io/rust-clippy/master/index.html) for more information about which
 lints can be configured and the meaning of the variables.
 
+Note that configuration changes will not apply for code that has already been compiled and cached under `./target/`;
+for example, adding a new string to `doc-valid-idents` may still result in Clippy flagging that string. To be sure that
+any configuration changes are applied, you may want to run `cargo clean` and re-compile your crate from scratch.
+
 To deactivate the “for further information visit *lint-link*” message you can
 define the `CLIPPY_DISABLE_DOCS_LINKS` environment variable.