From e2a511fe2059f7e64137aa893550b37195e96209 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Matthias=20Kr=C3=BCger?= <matthias.krueger@famsik.de>
Date: Thu, 10 Sep 2020 13:16:35 +0200
Subject: [PATCH] use String::from instead of format!() macro to craft string
 clippy::useless_format

---
 compiler/rustc_mir/src/transform/instrument_coverage.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/compiler/rustc_mir/src/transform/instrument_coverage.rs b/compiler/rustc_mir/src/transform/instrument_coverage.rs
index 8f43df8a6cbd..a5b30a25a9bd 100644
--- a/compiler/rustc_mir/src/transform/instrument_coverage.rs
+++ b/compiler/rustc_mir/src/transform/instrument_coverage.rs
@@ -353,7 +353,7 @@ fn make_tooltip_text(&self, coverage_region: &CoverageRegion) -> String {
                             if !INCLUDE_COVERAGE_STATEMENTS {
                                 continue;
                             }
-                            format!("unreachable")
+                            String::from("unreachable")
                         }
                     },
                     _ => format!("{:?}", statement),