From 5f41f8be30ea93e4fc86be2faea5e981ff3f8c2f Mon Sep 17 00:00:00 2001
From: varkor <github@varkor.com>
Date: Fri, 8 Feb 2019 16:44:50 +0100
Subject: [PATCH] Deny warnings in std stage 0

---
 src/bootstrap/builder.rs | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/bootstrap/builder.rs b/src/bootstrap/builder.rs
index b0d15e6a5df5f..8540d92f74917 100644
--- a/src/bootstrap/builder.rs
+++ b/src/bootstrap/builder.rs
@@ -1018,8 +1018,7 @@ impl<'a> Builder<'a> {
 
         cargo.env("RUSTC_VERBOSE", self.verbosity.to_string());
 
-        // in std, we want to avoid denying warnings for stage 0 as that makes cfg's painful.
-        if self.config.deny_warnings && !(mode == Mode::Std && stage == 0) {
+        if self.config.deny_warnings {
             cargo.env("RUSTC_DENY_WARNINGS", "1");
         }