Fix warnings

2 files changed, 2 insertions, 2 deletions

diff --git a/src/libsyntax/ext/deriving/mod.rs b/src/libsyntax/ext/deriving/mod.rs
index e2c52fad110..18ebceaeb43 100644
--- a/src/libsyntax/ext/deriving/mod.rs
+++ b/src/libsyntax/ext/deriving/mod.rs
@@ -286,7 +286,7 @@ pub fn create_enum_variant_pattern(cx: @ext_ctxt,
     }
 }
 
-pub fn variant_arg_count(cx: @ext_ctxt, span: span, variant: &variant) -> uint {
+pub fn variant_arg_count(_cx: @ext_ctxt, _span: span, variant: &variant) -> uint {
     match variant.node.kind {
         tuple_variant_kind(ref args) => args.len(),
         struct_variant_kind(ref struct_def) => struct_def.fields.len(),
diff --git a/src/libsyntax/ext/pipes/ast_builder.rs b/src/libsyntax/ext/pipes/ast_builder.rs
index 72e6c22dbc8..1d1a101d61f 100644
--- a/src/libsyntax/ext/pipes/ast_builder.rs
+++ b/src/libsyntax/ext/pipes/ast_builder.rs
@@ -16,7 +16,7 @@
 use core::prelude::*;
 
 use abi::AbiSet;
-use ast::{ident, node_id};
+use ast::ident;
 use ast;
 use ast_util;
 use codemap::{span, respan, dummy_sp, spanned};