sed -i -s 's/#\[deriving(/#\[derive(/g' **/*.rs

src/libsyntax/ext/base.rs

@@ -233,7 +233,7 @@ impl MacResult for MacItems {
 
 /// Fill-in macro expansion result, to allow compilation to continue
 /// after hitting errors.
-#[deriving(Copy)]
+#[derive(Copy)]
 pub struct DummyResult {
     expr_only: bool,
     span: Span
@@ -311,7 +311,7 @@ pub enum SyntaxExtension {
     /// A syntax extension that is attached to an item and creates new items
     /// based upon it.
     ///
-    /// `#[deriving(...)]` is an `ItemDecorator`.
+    /// `#[derive(...)]` is an `ItemDecorator`.
     Decorator(Box<ItemDecorator + 'static>),
 
     /// A syntax extension that is attached to an item and modifies it