From 305177d9cc4e4e75d98d031e38b492e5c394f26d Mon Sep 17 00:00:00 2001
From: csmoe <csmoe@msn.com>
Date: Mon, 27 Apr 2020 21:56:20 +0800
Subject: [PATCH] rustup: rust-lang/rust#71628

---
 clippy_lints/src/needless_pass_by_value.rs |  2 +-
 clippy_lints/src/utils/mod.rs              | 13 ++++++-------
 2 files changed, 7 insertions(+), 8 deletions(-)

diff --git a/clippy_lints/src/needless_pass_by_value.rs b/clippy_lints/src/needless_pass_by_value.rs
index 653ab44e1..200fd5656 100644
--- a/clippy_lints/src/needless_pass_by_value.rs
+++ b/clippy_lints/src/needless_pass_by_value.rs
@@ -111,7 +111,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for NeedlessPassByValue {
 
         let fn_def_id = cx.tcx.hir().local_def_id(hir_id);
 
-        let preds = traits::elaborate_predicates(cx.tcx, cx.param_env.caller_bounds.to_vec())
+        let preds = traits::elaborate_predicates(cx.tcx, cx.param_env.caller_bounds.iter().copied())
             .filter(|p| !p.is_global())
             .filter_map(|obligation| {
                 if let ty::Predicate::Trait(poly_trait_ref, _) = obligation.predicate {
diff --git a/clippy_lints/src/utils/mod.rs b/clippy_lints/src/utils/mod.rs
index 0d37932dd..1b21eaeb1 100644
--- a/clippy_lints/src/utils/mod.rs
+++ b/clippy_lints/src/utils/mod.rs
@@ -1384,13 +1384,12 @@ pub fn is_trait_impl_item(cx: &LateContext<'_, '_>, hir_id: HirId) -> bool {
 /// ```
 pub fn fn_has_unsatisfiable_preds(cx: &LateContext<'_, '_>, did: DefId) -> bool {
     use rustc_trait_selection::traits;
-    let predicates = cx
-        .tcx
-        .predicates_of(did)
-        .predicates
-        .iter()
-        .filter_map(|(p, _)| if p.is_global() { Some(*p) } else { None })
-        .collect();
+    let predicates =
+        cx.tcx
+            .predicates_of(did)
+            .predicates
+            .iter()
+            .filter_map(|(p, _)| if p.is_global() { Some(*p) } else { None });
     !traits::normalize_and_test_predicates(
         cx.tcx,
         traits::elaborate_predicates(cx.tcx, predicates)