cast_ref_to_mut lint

clippy_lints/src/lib.rs

@@ -486,6 +486,7 @@ pub fn register_plugins(reg: &mut rustc_plugin::Registry<'_>, conf: &Conf) {
     reg.register_late_lint_pass(box ptr_offset_with_cast::Pass);
     reg.register_late_lint_pass(box redundant_clone::RedundantClone);
     reg.register_late_lint_pass(box slow_vector_initialization::Pass);
+    reg.register_late_lint_pass(box types::RefToMut);
 
     reg.register_lint_group("clippy::restriction", Some("clippy_restriction"), vec![
         arithmetic::FLOAT_ARITHMETIC,
@@ -1026,6 +1027,7 @@ pub fn register_plugins(reg: &mut rustc_plugin::Registry<'_>, conf: &Conf) {
         mutex_atomic::MUTEX_INTEGER,
         needless_borrow::NEEDLESS_BORROW,
         redundant_clone::REDUNDANT_CLONE,
+        types::CAST_REF_TO_MUT,
         unwrap::PANICKING_UNWRAP,
         unwrap::UNNECESSARY_UNWRAP,
     ]);