From 47de5b45beafbf95acaaf18a92b0a731e8b3e383 Mon Sep 17 00:00:00 2001
From: Roc Yu <rocyu@protonmail.com>
Date: Sat, 15 Jan 2022 18:06:45 -0500
Subject: [PATCH] Remove `collect`

---
 src/librustdoc/core.rs | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/librustdoc/core.rs b/src/librustdoc/core.rs
index 22f59d39799c4..ce7c62b0f2518 100644
--- a/src/librustdoc/core.rs
+++ b/src/librustdoc/core.rs
@@ -492,9 +492,9 @@ impl<'tcx> Visitor<'tcx> for EmitIgnoredResolutionErrors<'tcx> {
                 "could not resolve path `{}`",
                 path.segments
                     .iter()
-                    .map(|segment| segment.ident.as_str().to_string())
-                    .collect::<Vec<_>>()
-                    .join("::")
+                    .map(|segment| segment.ident.as_str())
+                    .intersperse("::")
+                    .collect::<String>()
             );
             let mut err = rustc_errors::struct_span_err!(
                 self.tcx.sess,