Fix clippy lints

clippy_lints/src/iter_once_empty.rs

@@ -1,6 +1,6 @@
 use clippy_utils::diagnostics::span_lint_and_sugg;
 use clippy_utils::source::snippet;
-use rustc_ast::ast::*;
+use rustc_ast::ast::{Expr, ExprKind};
 use rustc_errors::Applicability;
 use rustc_lint::{EarlyContext, EarlyLintPass};
 use rustc_session::{declare_lint_pass, declare_tool_lint};
@@ -157,7 +157,7 @@ impl EarlyLintPass for IterOnceEmpty {
                 ),
                 _ => return,
             };
-            span_lint_and_sugg(cx, ITER_ONCE, expr.span, msg, "try", sugg, Applicability::Unspecified)
+            span_lint_and_sugg(cx, ITER_ONCE, expr.span, msg, "try", sugg, Applicability::Unspecified);
         } else {
             let msg = match method_name {
                 "iter" => "this .iter call can be replaced with std::iter::empty",
@@ -174,7 +174,6 @@ impl EarlyLintPass for IterOnceEmpty {
                 "std::iter::empty()".to_string(),
                 Applicability::Unspecified,
             );
-            return;
         }
     }
 }