From 5fcae0a05d8f48e93a3b77bacddea6c6c7f9ea24 Mon Sep 17 00:00:00 2001
From: Noah Lev <camelidcamel@gmail.com>
Date: Fri, 26 Nov 2021 14:21:28 -0800
Subject: [PATCH] Deny warnings in rustdoc non-UI tests

These warnings were silently ignored since they did not appear in a
`.stderr` file and did not fail the test. With this change, warnings in
tests are denied, causing the tests to fail if they have warnings.

I will fix all the warnings that are now test failures next.
---
 src/tools/compiletest/src/runtest.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/tools/compiletest/src/runtest.rs b/src/tools/compiletest/src/runtest.rs
index 3c85b9076dd..727eecbb732 100644
--- a/src/tools/compiletest/src/runtest.rs
+++ b/src/tools/compiletest/src/runtest.rs
@@ -1452,6 +1452,8 @@ fn document(&self, out_dir: &Path) -> ProcRes {
             .arg(aux_dir)
             .arg("-o")
             .arg(out_dir)
+            .arg("--deny")
+            .arg("warnings")
             .arg(&self.testpaths.file)
             .args(&self.props.compile_flags);