Update clippy_lints/src/functions.rs

Co-authored-by: Eduardo Broto <ebroto@tutanota.com>
rust-lang · Oct 11, 2020 · 47e8464 · 47e8464
1 parent 4ee95ed
commit 47e8464
Showing 1 changed file with 1 addition and 2 deletions.
diff --git a/clippy_lints/src/functions.rs b/clippy_lints/src/functions.rs
@@ -458,8 +458,7 @@ fn check_result_unit_err(cx: &LateContext<'_>, decl: &hir::FnDecl<'_>, item_span
         if let hir::TyKind::Path(ref qpath) = ty.kind {
             if is_type_diagnostic_item(cx, hir_ty_to_ty(cx.tcx, ty), sym!(result_type)) {
                 if let Some(ref args) = last_path_segment(qpath).args {
-                    if args.args.len() == 2 {
-                        if let hir::GenericArg::Type(ref err_ty) = args.args[1] {
+                    if let [_, hir::GenericArg::Type(ref err_ty)] = args.args {
                             if let hir::TyKind::Tup(t) = err_ty.kind {
                                 if t.is_empty() {
                                     span_lint_and_help(