From 76916d7a4b948119de05135e8d797cf0d40bfd58 Mon Sep 17 00:00:00 2001
From: Nicholas Nethercote <nnethercote@mozilla.com>
Date: Fri, 6 Dec 2019 13:41:07 +1100
Subject: [PATCH] Remove an unnecessary local variable.

---
 src/librustc_data_structures/obligation_forest/mod.rs | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/librustc_data_structures/obligation_forest/mod.rs b/src/librustc_data_structures/obligation_forest/mod.rs
index 0f893252671..0ee751d33c9 100644
--- a/src/librustc_data_structures/obligation_forest/mod.rs
+++ b/src/librustc_data_structures/obligation_forest/mod.rs
@@ -451,9 +451,8 @@ impl<O: ForestObligation> ObligationForest<O> {
                 index += 1;
                 continue;
             }
-            let result = processor.process_obligation(&mut node.obligation);
 
-            match result {
+            match processor.process_obligation(&mut node.obligation) {
                 ProcessResult::Unchanged => {
                     // No change in state.
                 }