std: fix fallout

src/libstd/io/extensions.rs

@@ -52,7 +52,9 @@ impl<'r, R: Reader> Bytes<'r, R> {
     }
 }
 
-impl<'r, R: Reader> Iterator<IoResult<u8>> for Bytes<'r, R> {
+impl<'r, R: Reader> Iterator for Bytes<'r, R> {
+    type Item = IoResult<u8>;
+
     #[inline]
     fn next(&mut self) -> Option<IoResult<u8>> {
         match self.reader.read_byte() {

src/libstd/io/fs.rs

@@ -563,7 +563,9 @@ pub struct Directories {
     stack: Vec<Path>,
 }
 
-impl Iterator<Path> for Directories {
+impl Iterator for Directories {
+    type Item = Path;
+
     fn next(&mut self) -> Option<Path> {
         match self.stack.pop() {
             Some(path) => {

src/libstd/io/mod.rs

@@ -1371,7 +1371,9 @@ pub struct Lines<'r, T:'r> {
     buffer: &'r mut T,
 }
 
-impl<'r, T: Buffer> Iterator<IoResult<String>> for Lines<'r, T> {
+impl<'r, T: Buffer> Iterator for Lines<'r, T> {
+    type Item = IoResult<String>;
+
     fn next(&mut self) -> Option<IoResult<String>> {
         match self.buffer.read_line() {
             Ok(x) => Some(Ok(x)),
@@ -1398,7 +1400,9 @@ pub struct Chars<'r, T:'r> {
     buffer: &'r mut T
 }
 
-impl<'r, T: Buffer> Iterator<IoResult<char>> for Chars<'r, T> {
+impl<'r, T: Buffer> Iterator for Chars<'r, T> {
+    type Item = IoResult<char>;
+
     fn next(&mut self) -> Option<IoResult<char>> {
         match self.buffer.read_char() {
             Ok(x) => Some(Ok(x)),
@@ -1649,14 +1653,18 @@ pub struct IncomingConnections<'a, Sized? A:'a> {
 }
 
 #[cfg(stage0)]
-impl<'a, T, A: Acceptor<T>> Iterator<IoResult<T>> for IncomingConnections<'a, A> {
+impl<'a, T, A: Acceptor<T>> Iterator for IncomingConnections<'a, A> {
+    type Item = IoResult<T>;
+
     fn next(&mut self) -> Option<IoResult<T>> {
         Some(self.inc.accept())
     }
 }
 
 #[cfg(not(stage0))]
-impl<'a, T, Sized? A: Acceptor<T>> Iterator<IoResult<T>> for IncomingConnections<'a, A> {
+impl<'a, T, Sized? A: Acceptor<T>> Iterator for IncomingConnections<'a, A> {
+    type Item = IoResult<T>;
+
     fn next(&mut self) -> Option<IoResult<T>> {
         Some(self.inc.accept())
     }

src/libstd/io/util.rs

@@ -169,7 +169,7 @@ pub struct ChainedReader<I, R> {
     cur_reader: Option<R>,
 }
 
-impl<R: Reader, I: Iterator<R>> ChainedReader<I, R> {
+impl<R: Reader, I: Iterator<Item=R>> ChainedReader<I, R> {
     /// Creates a new `ChainedReader`
     pub fn new(mut readers: I) -> ChainedReader<I, R> {
         let r = readers.next();
@@ -177,7 +177,7 @@ impl<R: Reader, I: Iterator<R>> ChainedReader<I, R> {
     }
 }
 
-impl<R: Reader, I: Iterator<R>> Reader for ChainedReader<I, R> {
+impl<R: Reader, I: Iterator<Item=R>> Reader for ChainedReader<I, R> {
     fn read(&mut self, buf: &mut [u8]) -> io::IoResult<uint> {
         loop {
             let err = match self.cur_reader {
@@ -252,7 +252,7 @@ pub struct IterReader<T> {
     iter: T,
 }
 
-impl<T: Iterator<u8>> IterReader<T> {
+impl<T: Iterator<Item=u8>> IterReader<T> {
     /// Creates a new `IterReader` which will read from the specified
     /// `Iterator`.
     pub fn new(iter: T) -> IterReader<T> {
@@ -260,7 +260,7 @@ impl<T: Iterator<u8>> IterReader<T> {
     }
 }
 
-impl<T: Iterator<u8>> Reader for IterReader<T> {
+impl<T: Iterator<Item=u8>> Reader for IterReader<T> {
     #[inline]
     fn read(&mut self, buf: &mut [u8]) -> io::IoResult<uint> {
         let mut len = 0;