diff --git a/src/comm/comm.rs b/src/comm/comm.rs
index 600922f25..670c56c1e 100644
--- a/src/comm/comm.rs
+++ b/src/comm/comm.rs
@@ -14,7 +14,7 @@ extern crate getopts;
 use std::cmp::Ord;
 use std::io::{BufferedReader, IoResult, print};
 use std::io::fs::File;
-use std::io::stdio::{stdin, StdReader};
+use std::io::stdio::{stdin, StdinReader};
 use std::path::Path;
 
 static NAME : &'static str = "comm";
@@ -45,7 +45,7 @@ fn ensure_nl(line: String) -> String {
 }
 
 enum LineReader {
-    Stdin(BufferedReader<StdReader>),
+    Stdin(StdinReader),
     FileIn(BufferedReader<File>)
 }
 
diff --git a/src/factor/factor.rs b/src/factor/factor.rs
index 757b01932..5cb9b85fb 100644
--- a/src/factor/factor.rs
+++ b/src/factor/factor.rs
@@ -13,8 +13,9 @@
 extern crate getopts;
 extern crate libc;
 
-use std::vec::{Vec};
-use std::io::{stdin};
+use std::vec::Vec;
+use std::io::BufferedReader;
+use std::io::stdio::stdin_raw;
 
 #[path="../common/util.rs"]
 mod util;
@@ -91,7 +92,7 @@ pub fn uumain(args: Vec<String>) -> int {
     }
 
     if matches.free.is_empty() {
-        for line in stdin().lines() {
+        for line in BufferedReader::new(stdin_raw()).lines() {
             print_factors_str(line.unwrap().as_slice().trim());
         }
     } else {
diff --git a/src/mv/mv.rs b/src/mv/mv.rs
index fa43ac7c3..02e770e10 100644
--- a/src/mv/mv.rs
+++ b/src/mv/mv.rs
@@ -10,7 +10,7 @@
  * that was distributed with this source code.
  */
 
-#![feature(macro_rules, if_let)]
+#![feature(macro_rules)]
 
 extern crate getopts;
 
diff --git a/src/rm/rm.rs b/src/rm/rm.rs
index 6fdc7916b..2433dcaee 100644
--- a/src/rm/rm.rs
+++ b/src/rm/rm.rs
@@ -9,7 +9,7 @@
  * file that was distributed with this source code.
  */
 
-#![feature(if_let, macro_rules)]
+#![feature(macro_rules)]
 
 extern crate getopts;
 extern crate libc;
diff --git a/src/tail/tail.rs b/src/tail/tail.rs
index 83168fd0b..6dbd10694 100644
--- a/src/tail/tail.rs
+++ b/src/tail/tail.rs
@@ -9,7 +9,7 @@
  *
  */
 
-#![feature(if_let, macro_rules)]
+#![feature(macro_rules)]
 
 extern crate getopts;
 
diff --git a/src/tr/tr.rs b/src/tr/tr.rs
index 157c0fa55..337711833 100644
--- a/src/tr/tr.rs
+++ b/src/tr/tr.rs
@@ -16,8 +16,8 @@ extern crate getopts;
 use getopts::OptGroup;
 use std::char::from_u32;
 use std::collections::{BitvSet, VecMap};
-use std::io::print;
-use std::io::stdio::{stdin,stdout};
+use std::io::{BufferedReader, print};
+use std::io::stdio::{stdin_raw, stdout};
 use std::iter::FromIterator;
 use std::vec::Vec;
 
@@ -101,7 +101,7 @@ fn delete(set: Vec<char>, complement: bool) {
         |c: char| !bset.contains(&(c as uint))
     };
 
-    for c in stdin().chars() {
+    for c in BufferedReader::new(stdin_raw()).chars() {
         match c {
             Ok(c) if is_allowed(c) => out.write_char(c).unwrap(),
             Ok(_) => (),
@@ -126,7 +126,7 @@ fn tr(set1: &[char], set2: &[char]) {
         }
     }
 
-    for c in stdin().chars() {
+    for c in BufferedReader::new(stdin_raw()).chars() {
         match c {
             Ok(inc) => {
                 let trc = match map.get(&(inc as uint)) {