From 9017d46901700a4b877f47b2c715841557b388a1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?John=20K=C3=A5re=20Alsaker?= <john.kare.alsaker@gmail.com>
Date: Tue, 9 Apr 2019 10:19:53 +0200
Subject: [PATCH] Make trait_methods_not_found use a lock

---
 src/librustc/session/mod.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/librustc/session/mod.rs b/src/librustc/session/mod.rs
index 2f3df32945ceb..9cd6c30e272f5 100644
--- a/src/librustc/session/mod.rs
+++ b/src/librustc/session/mod.rs
@@ -166,7 +166,7 @@ pub struct Session {
     pub driver_lint_caps: FxHashMap<lint::LintId, lint::Level>,
 
     /// `Span`s of trait methods that weren't found to avoid emitting object safety errors
-    pub trait_methods_not_found: OneThread<RefCell<FxHashSet<Span>>>,
+    pub trait_methods_not_found: Lock<FxHashSet<Span>>,
 }
 
 pub struct PerfStats {
@@ -1236,7 +1236,7 @@ fn build_session_(
         has_global_allocator: Once::new(),
         has_panic_handler: Once::new(),
         driver_lint_caps,
-        trait_methods_not_found: OneThread::new(RefCell::new(Default::default())),
+        trait_methods_not_found: Lock::new(Default::default()),
     };
 
     validate_commandline_args_with_session_available(&sess);