Fix dogfood errors

Author: flip1995

clippy_lints/src/panic_unimplemented.rs

@@ -73,7 +73,7 @@ declare_lint_pass!(PanicUnimplemented => [UNIMPLEMENTED, UNREACHABLE, TODO, PANI
 
 impl<'tcx> LateLintPass<'tcx> for PanicUnimplemented {
     fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>) {
-        if let Some(_) = match_panic_call(cx, expr) {
+        if match_panic_call(cx, expr).is_some() {
             let span = get_outer_span(expr);
             if is_expn_of(expr.span, "unimplemented").is_some() {
                 span_lint(

clippy_lints/src/utils/ast_utils.rs

@@ -110,8 +110,7 @@ pub fn eq_expr_opt(l: &Option<P<Expr>>, r: &Option<P<Expr>>) -> bool {
 pub fn eq_struct_rest(l: &StructRest, r: &StructRest) -> bool {
     match (l, r) {
         (StructRest::Base(lb), StructRest::Base(rb)) => eq_expr(lb, rb),
-        (StructRest::Rest(_), StructRest::Rest(_)) => true,
-        (StructRest::None, StructRest::None) => true,
+        (StructRest::Rest(_), StructRest::Rest(_)) | (StructRest::None, StructRest::None) => true,
         _ => false,
     }
 }