rustup rust-lang/rust#65426

Author: tesuji

clippy_lints/src/booleans.rs

@@ -255,7 +255,7 @@ fn simplify_not(cx: &LateContext<'_, '_>, expr: &Expr) -> Option<String> {
                 .iter()
                 .cloned()
                 .flat_map(|(a, b)| vec![(a, b), (b, a)])
-                .find(|&(a, _)| a == path.ident.name.as_str())
+                .find(|&(a, _)| a == path.ident.name.as_str() as &str)
                 .and_then(|(_, neg_method)| Some(format!("{}.{}()", snippet_opt(cx, args[0].span)?, neg_method)))
         },
         _ => None,

clippy_lints/src/functions.rs

@@ -465,7 +465,7 @@ fn check_must_use_candidate<'a, 'tcx>(
 fn must_use_attr(attrs: &[Attribute]) -> Option<&Attribute> {
     attrs
         .iter()
-        .find(|attr| attr.ident().map_or(false, |ident| "must_use" == &ident.as_str()))
+        .find(|attr| attr.ident().map_or(false, |ident| "must_use" == &ident.as_str() as &str))
 }
 
 fn returns_unit(decl: &hir::FnDecl) -> bool {