diff --git a/src/bits.rs b/src/bits.rs
index e7d7738..88094a8 100644
--- a/src/bits.rs
+++ b/src/bits.rs
@@ -50,14 +50,14 @@ impl Bits {
                 self.data.push((number << (16-b)) as u8);
             }
             (_, 0..8) => {
-                *self.data.mut_last().unwrap() |= (number << (8-b)) as u8;
+                *self.data.last_mut().unwrap() |= (number << (8-b)) as u8;
             }
             (_, 9..16) => {
-                *self.data.mut_last().unwrap() |= (number >> (b-8)) as u8;
+                *self.data.last_mut().unwrap() |= (number >> (b-8)) as u8;
                 self.data.push((number << (16-b)) as u8);
             }
             _ => {
-                *self.data.mut_last().unwrap() |= (number >> (b-8)) as u8;
+                *self.data.last_mut().unwrap() |= (number >> (b-8)) as u8;
                 self.data.push((number >> (b-16)) as u8);
                 self.data.push((number << (24-b)) as u8);
             }
diff --git a/src/canvas.rs b/src/canvas.rs
index 94e7826..1386c4c 100644
--- a/src/canvas.rs
+++ b/src/canvas.rs
@@ -1483,7 +1483,7 @@ impl Canvas {
                 |j| self.get(i, j)
             };
 
-            let mut colors = range(0, self.width).map(map_fn).chain(Some(Empty).move_iter());
+            let mut colors = range(0, self.width).map(map_fn).chain(Some(Empty).into_iter());
 
             let mut last_color = Empty;
             let mut consecutive_len = 1u16;
diff --git a/src/ec.rs b/src/ec.rs
index 37ff8e0..71acf5a 100644
--- a/src/ec.rs
+++ b/src/ec.rs
@@ -28,12 +28,12 @@ pub fn create_error_correction_code(data: &[u8], ec_code_size: uint) -> Vec<u8>
         }
 
         let log_lead_coeff = LOG_TABLE[lead_coeff] as uint;
-        for (u, v) in res.mut_slice_from(i+1).mut_iter().zip(log_den.iter()) {
+        for (u, v) in res.slice_from_mut(i+1).iter_mut().zip(log_den.iter()) {
             *u ^= EXP_TABLE[((*v as uint + log_lead_coeff) % 255) as uint];
         }
     }
 
-    res.move_iter().skip(data_len).collect()
+    res.into_iter().skip(data_len).collect()
 }
 
 #[cfg(test)]
diff --git a/src/lib.rs b/src/lib.rs
index ed35993..b804620 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -153,7 +153,7 @@ impl QrCode {
         let width = self.width;
         let mut k = 0;
         let mut res = String::with_capacity(width * (width + 1));
-        for i in range(0, width) {
+        for _ in range(0, width) {
             res.push_char('\n');
             for _ in range(0, width) {
                 res.push_char(if self.content[k] { on_char } else { off_char });