From cd76d574e444197d692d8652c27f869038430af1 Mon Sep 17 00:00:00 2001
From: Philipp Krones <hello@philkrones.com>
Date: Thu, 12 Jan 2023 19:12:06 +0100
Subject: [PATCH] Also add rustc_driver to clippy_utils

I'm not sure why this is necessary. It worked without this for me
locally, but this fails in CI. The same was done in clippy_dev
---
 clippy_utils/src/lib.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/clippy_utils/src/lib.rs b/clippy_utils/src/lib.rs
index 991be9727c21..7a4a9036dd36 100644
--- a/clippy_utils/src/lib.rs
+++ b/clippy_utils/src/lib.rs
@@ -22,6 +22,9 @@ extern crate rustc_ast;
 extern crate rustc_ast_pretty;
 extern crate rustc_attr;
 extern crate rustc_data_structures;
+// The `rustc_driver` crate seems to be required in order to use the `rust_ast` crate.
+#[allow(unused_extern_crates)]
+extern crate rustc_driver;
 extern crate rustc_errors;
 extern crate rustc_hir;
 extern crate rustc_hir_typeck;