cleanup: replace `as[_mut]_slice()` calls with deref coercions

2 files changed, 3 insertions, 3 deletions

diff --git a/src/librustc/plugin/build.rs b/src/librustc/plugin/build.rs
index 110e672b70f..818af33c34d 100644
--- a/src/librustc/plugin/build.rs
+++ b/src/librustc/plugin/build.rs
@@ -24,7 +24,7 @@ struct RegistrarFinder {
 impl<'v> Visitor<'v> for RegistrarFinder {
     fn visit_item(&mut self, item: &ast::Item) {
         if let ast::ItemFn(..) = item.node {
-            if attr::contains_name(item.attrs.as_slice(),
+            if attr::contains_name(&item.attrs,
                                    "plugin_registrar") {
                 self.registrars.push((item.id, item.span));
             }
diff --git a/src/librustc/plugin/load.rs b/src/librustc/plugin/load.rs
index dd0b0a63ced..a7592226fd6 100644
--- a/src/librustc/plugin/load.rs
+++ b/src/librustc/plugin/load.rs
@@ -82,8 +82,8 @@ pub fn load_plugins(sess: &Session, krate: &ast::Crate,
     visit::walk_crate(&mut loader, krate);
 
     if let Some(plugins) = addl_plugins {
-        for plugin in &plugins {
-            loader.load_plugin(CrateOrString::Str(plugin.as_slice()),
+        for plugin in plugins {
+            loader.load_plugin(CrateOrString::Str(&plugin),
                                                   None, None, None)
         }
     }