Fixup

Author: Jarcho

CHANGELOG.md

@@ -981,7 +981,7 @@ Released 2021-03-25
   [#6532](https://github.com/rust-lang/rust-clippy/pull/6532)
 * [`single_match`] Suggest `if` over `if let` when possible
   [#6574](https://github.com/rust-lang/rust-clippy/pull/6574)
-* [`ref_in_deref`] Use parentheses correctly in suggestion
+* `ref_in_deref` Use parentheses correctly in suggestion
   [#6609](https://github.com/rust-lang/rust-clippy/pull/6609)
 * [`stable_sort_primitive`] Clarify error message
   [#6611](https://github.com/rust-lang/rust-clippy/pull/6611)

clippy_lints/src/dereference.rs

@@ -232,9 +232,8 @@ impl<'tcx> LateLintPass<'tcx> for Dereferencing {
                                     } else if !adjust.target.is_ref() {
                                         deref_count += 1;
                                         break iter.next();
-                                    } else {
-                                        deref_count += 1;
                                     }
+                                    deref_count += 1;
                                 },
                                 None => break None,
                             };
@@ -511,10 +510,7 @@ fn is_linted_explicit_deref_position(parent: Option<Node<'_>>, child_id: HirId,
 /// Note: This is only correct assuming auto-deref is already occurring.
 fn is_auto_reborrow_position(parent: Option<Node<'_>>) -> bool {
     match parent {
-        Some(Node::Expr(parent)) => match parent.kind {
-            ExprKind::MethodCall(..) | ExprKind::Call(..) => true,
-            _ => false,
-        },
+        Some(Node::Expr(parent)) => matches!(parent.kind, ExprKind::MethodCall(..) | ExprKind::Call(..)),
         Some(Node::Local(_)) => true,
         _ => false,
     }

clippy_lints/src/implicit_hasher.rs

@@ -179,7 +179,7 @@ impl<'tcx> LateLintPass<'tcx> for ImplicitHasher {
                             )
                             .and_then(|snip| {
                                 let i = snip.find("fn")?;
-                                Some(item.span.lo() + BytePos((i + (&snip[i..]).find('(')?) as u32))
+                                Some(item.span.lo() + BytePos((i + snip[i..].find('(')?) as u32))
                             })
                             .expect("failed to create span for type parameters");
                             Span::new(pos, pos, item.span.ctxt(), item.span.parent())

clippy_lints/src/octal_escapes.rs

@@ -101,7 +101,7 @@ fn check_lit(cx: &EarlyContext<'tcx>, lit: &Lit, span: Span, is_string: bool) {
         // construct a replacement escape
         // the maximum value is \077, or \x3f, so u8 is sufficient here
         if let Ok(n) = u8::from_str_radix(&contents[from + 1..to], 8) {
-            write!(&mut suggest_1, "\\x{:02x}", n).unwrap();
+            write!(suggest_1, "\\x{:02x}", n).unwrap();
         }
 
         // append the null byte as \x00 and the following digits literally