diff --git a/clippy_lints/src/escape.rs b/clippy_lints/src/escape.rs
index 0e958c5ad05..a3cbac820c6 100644
--- a/clippy_lints/src/escape.rs
+++ b/clippy_lints/src/escape.rs
@@ -76,8 +76,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for BoxedLocal {
         };
 
         let fn_def_id = cx.tcx.hir().local_def_id(hir_id);
-        let region_scope_tree = &cx.tcx.region_scope_tree(fn_def_id);
-        ExprUseVisitor::new(&mut v, cx.tcx, fn_def_id, cx.param_env, region_scope_tree, cx.tables).consume_body(body);
+        ExprUseVisitor::new(&mut v, cx.tcx, fn_def_id, cx.param_env, cx.tables).consume_body(body);
 
         for node in v.set {
             span_lint(
diff --git a/clippy_lints/src/loops.rs b/clippy_lints/src/loops.rs
index 52fa7a2c2e4..3b86fddd8bd 100644
--- a/clippy_lints/src/loops.rs
+++ b/clippy_lints/src/loops.rs
@@ -1678,13 +1678,11 @@ fn check_for_mutation(
         span_high: None,
     };
     let def_id = def_id::DefId::local(body.hir_id.owner);
-    let region_scope_tree = &cx.tcx.region_scope_tree(def_id);
     ExprUseVisitor::new(
         &mut delegate,
         cx.tcx,
         def_id,
         cx.param_env,
-        region_scope_tree,
         cx.tables,
     )
     .walk_expr(body);
diff --git a/clippy_lints/src/needless_pass_by_value.rs b/clippy_lints/src/needless_pass_by_value.rs
index c9be602fb45..64786f48719 100644
--- a/clippy_lints/src/needless_pass_by_value.rs
+++ b/clippy_lints/src/needless_pass_by_value.rs
@@ -134,8 +134,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for NeedlessPassByValue {
             ..
         } = {
             let mut ctx = MovedVariablesCtxt::default();
-            let region_scope_tree = &cx.tcx.region_scope_tree(fn_def_id);
-            euv::ExprUseVisitor::new(&mut ctx, cx.tcx, fn_def_id, cx.param_env, region_scope_tree, cx.tables)
+            euv::ExprUseVisitor::new(&mut ctx, cx.tcx, fn_def_id, cx.param_env, cx.tables)
                 .consume_body(body);
             ctx
         };
diff --git a/clippy_lints/src/utils/usage.rs b/clippy_lints/src/utils/usage.rs
index 8cd5d7d2d02..e71dfd7401f 100644
--- a/clippy_lints/src/utils/usage.rs
+++ b/clippy_lints/src/utils/usage.rs
@@ -12,13 +12,11 @@ pub fn mutated_variables<'a, 'tcx>(expr: &'tcx Expr, cx: &'a LateContext<'a, 'tc
         skip: false,
     };
     let def_id = def_id::DefId::local(expr.hir_id.owner);
-    let region_scope_tree = &cx.tcx.region_scope_tree(def_id);
     ExprUseVisitor::new(
         &mut delegate,
         cx.tcx,
         def_id,
         cx.param_env,
-        region_scope_tree,
         cx.tables,
     )
     .walk_expr(expr);