Fix dogfood failures by refactoring open_options

src/lib.rs

@@ -1,6 +1,7 @@
 #![feature(plugin_registrar, box_syntax)]
 #![feature(rustc_private, collections)]
 #![feature(num_bits_bytes, iter_arith)]
+#![feature(custom_attribute)]
 #![allow(unknown_lints)]
 
 // this only exists to allow the "dogfood" integration test to work
@@ -77,6 +78,7 @@ mod reexport {
 }
 
 #[plugin_registrar]
+#[rustfmt_skip]
 pub fn plugin_registrar(reg: &mut Registry) {
     reg.register_late_lint_pass(box types::TypePass);
     reg.register_late_lint_pass(box misc::TopLevelRefPass);
@@ -130,8 +132,8 @@ pub fn plugin_registrar(reg: &mut Registry) {
     reg.register_late_lint_pass(box array_indexing::ArrayIndexing);
     reg.register_late_lint_pass(box panic::PanicPass);
 
-    reg.register_lint_group("clippy_pedantic",
-                            vec![
+
+    reg.register_lint_group("clippy_pedantic", vec![
         methods::OPTION_UNWRAP_USED,
         methods::RESULT_UNWRAP_USED,
         methods::WRONG_PUB_SELF_CONVENTION,
@@ -150,8 +152,7 @@ pub fn plugin_registrar(reg: &mut Registry) {
         unicode::UNICODE_NOT_NFC,
     ]);
 
-    reg.register_lint_group("clippy",
-                            vec![
+    reg.register_lint_group("clippy", vec![
         approx_const::APPROX_CONSTANT,
         array_indexing::OUT_OF_BOUNDS_INDEXING,
         attrs::INLINE_ALWAYS,