diff --git a/lib/modules/manager/cargo/artifacts.ts b/lib/modules/manager/cargo/artifacts.ts
index f4e8b2ca1358bd1fd1619546edb0fb395b745619..0a7b3015f808334ab298363d04f477e4b6c31a36 100644
--- a/lib/modules/manager/cargo/artifacts.ts
+++ b/lib/modules/manager/cargo/artifacts.ts
@@ -85,7 +85,7 @@ export async function updateArtifacts({
     if (err.message === TEMPORARY_ERROR) {
       throw err;
     }
-    logger.warn({ err }, 'Failed to update Cargo lock file');
+    logger.debug({ err }, 'Failed to update Cargo lock file');
     return [
       {
         artifactError: {