Clean up rustc warnings.

compiletest: compact "linux" "macos" etc.as "unix".
liballoc: remove a superfluous "use".
libcollections: remove invocations of deprecated methods in favor of
    their suggested replacements and use "_" for a loop counter.
libcoretest: remove invocations of deprecated methods;  also add
    "allow(deprecated)" for testing a deprecated method itself.
libglob: use "cfg_attr".
libgraphviz: add a test for one of data constructors.
libgreen: remove a superfluous "use".
libnum: "allow(type_overflow)" for type cast into u8 in a test code.
librustc: names of static variables should be in upper case.
libserialize: v[i] instead of get().
libstd/ascii: to_lowercase() instead of to_lower().
libstd/bitflags: modify AnotherSetOfFlags to use i8 as its backend.
    It will serve better for testing various aspects of bitflags!.
libstd/collections: "allow(deprecated)" for testing a deprecated
    method itself.
libstd/io: remove invocations of deprecated methods and superfluous "use".
    Also add #[test] where it was missing.
libstd/num: introduce a helper function to effectively remove
    invocations of a deprecated method.
libstd/path and rand: remove invocations of deprecated methods and
    superfluous "use".
libstd/task and libsync/comm: "allow(deprecated)" for testing
    a deprecated method itself.
libsync/deque: remove superfluous "unsafe".
libsync/mutex and once: names of static variables should be in upper case.
libterm: introduce a helper function to effectively remove
    invocations of a deprecated method.

We still see a few warnings about using obsoleted native::task::spawn()
in the test modules for libsync.  I'm not sure how I should replace them
with std::task::TaksBuilder and native::task::NativeTaskBuilder
(dependency to libstd?)

Signed-off-by: NODA, Kai <nodakai@gmail.com>

40 files changed, 264 insertions, 221 deletions

diff --git a/src/compiletest/runtest.rs b/src/compiletest/runtest.rs
index ab8d924a442..ff6b1b15333 100644
--- a/src/compiletest/runtest.rs
+++ b/src/compiletest/runtest.rs
@@ -947,15 +947,12 @@ fn check_expected_errors(expected_errors: Vec<errors::ExpectedError> ,
         String::from_chars(c.as_slice())
     }
 
-    #[cfg(target_os = "windows")]
+    #[cfg(windows)]
     fn prefix_matches( line : &str, prefix : &str ) -> bool {
         to_lower(line).as_slice().starts_with(to_lower(prefix).as_slice())
     }
 
-    #[cfg(any(target_os = "linux",
-              target_os = "macos",
-              target_os = "freebsd",
-              target_os = "dragonfly"))]
+    #[cfg(unix)]
     fn prefix_matches( line : &str, prefix : &str ) -> bool {
         line.starts_with( prefix )
     }
@@ -1356,24 +1353,21 @@ fn program_output(config: &Config, testfile: &Path, lib_path: &str, prog: String
 }
 
 // Linux and mac don't require adjusting the library search path
-#[cfg(any(target_os = "linux",
-          target_os = "macos",
-          target_os = "freebsd",
-          target_os = "dragonfly"))]
+#[cfg(unix)]
 fn make_cmdline(_libpath: &str, prog: &str, args: &[String]) -> String {
     format!("{} {}", prog, args.connect(" "))
 }
 
-#[cfg(target_os = "windows")]
+#[cfg(windows)]
 fn make_cmdline(libpath: &str, prog: &str, args: &[String]) -> String {
-    format!("{} {} {}", lib_path_cmd_prefix(libpath), prog, args.connect(" "))
-}
 
-// Build the LD_LIBRARY_PATH variable as it would be seen on the command line
-// for diagnostic purposes
-#[cfg(target_os = "windows")]
-fn lib_path_cmd_prefix(path: &str) -> String {
-    format!("{}=\"{}\"", util::lib_path_env_var(), util::make_new_path(path))
+    // Build the LD_LIBRARY_PATH variable as it would be seen on the command line
+    // for diagnostic purposes
+    fn lib_path_cmd_prefix(path: &str) -> String {
+        format!("{}=\"{}\"", util::lib_path_env_var(), util::make_new_path(path))
+    }
+
+    format!("{} {} {}", lib_path_cmd_prefix(libpath), prog, args.connect(" "))
 }
 
 fn dump_output(config: &Config, testfile: &Path, out: &str, err: &str) {
diff --git a/src/liballoc/arc.rs b/src/liballoc/arc.rs
index 39524ed547d..a2483f23534 100644
--- a/src/liballoc/arc.rs
+++ b/src/liballoc/arc.rs
@@ -276,7 +276,6 @@ impl<T: Sync + Send> Drop for Weak<T> {
 #[allow(experimental)]
 mod tests {
     use std::clone::Clone;
-    use std::collections::MutableSeq;
     use std::comm::channel;
     use std::mem::drop;
     use std::ops::Drop;
diff --git a/src/libcollections/bitv.rs b/src/libcollections/bitv.rs
index 8f9873d77d1..bfa5e237f55 100644
--- a/src/libcollections/bitv.rs
+++ b/src/libcollections/bitv.rs
@@ -2659,7 +2659,7 @@ mod tests {
         let mut r = rng();
         let mut bitv = Bitv::with_capacity(BENCH_BITS, false);
         b.iter(|| {
-            for i in range(0u, 100) {
+            for _ in range(0u, 100) {
                 bitv.set((r.next_u32() as uint) % BENCH_BITS, r.gen());
             }
             &bitv
diff --git a/src/libcollections/dlist.rs b/src/libcollections/dlist.rs
index 87e07b7b1b6..088784070e7 100644
--- a/src/libcollections/dlist.rs
+++ b/src/libcollections/dlist.rs
@@ -890,13 +890,13 @@ mod tests {
         }
 
         let v = vec![1i,2,3,4,5];
-        let u = vec![9i,8,1,2,3,4,5];
+        let mut u = vec![9i,8,1,2,3,4,5];
         let mut m = list_from(v.as_slice());
         m.prepend(list_from(u.as_slice()));
         check_links(&m);
-        let sum = u.append(v.as_slice());
-        assert_eq!(sum.len(), m.len());
-        for elt in sum.into_iter() {
+        u.extend(v.as_slice().iter().map(|&b| b));
+        assert_eq!(u.len(), m.len());
+        for elt in u.into_iter() {
             assert_eq!(m.pop_front(), Some(elt))
         }
     }
diff --git a/src/libcollections/ringbuf.rs b/src/libcollections/ringbuf.rs
index c9c824ac9ce..4d8e67f6ac8 100644
--- a/src/libcollections/ringbuf.rs
+++ b/src/libcollections/ringbuf.rs
@@ -611,10 +611,10 @@ mod tests {
         assert_eq!(deq.len(), 3);
         deq.push_front(a.clone());
         assert_eq!(deq.len(), 4);
-        assert_eq!((*deq.get(0)).clone(), a.clone());
-        assert_eq!((*deq.get(1)).clone(), b.clone());
-        assert_eq!((*deq.get(2)).clone(), c.clone());
-        assert_eq!((*deq.get(3)).clone(), d.clone());
+        assert_eq!(deq[0].clone(), a.clone());
+        assert_eq!(deq[1].clone(), b.clone());
+        assert_eq!(deq[2].clone(), c.clone());
+        assert_eq!(deq[3].clone(), d.clone());
     }
 
     #[test]
@@ -626,7 +626,7 @@ mod tests {
         assert_eq!(deq.len(), 66);
 
         for i in range(0u, 66) {
-            assert_eq!(*deq.get(i), 65 - i);
+            assert_eq!(deq[i], 65 - i);
         }
 
         let mut deq = RingBuf::new();
@@ -635,7 +635,7 @@ mod tests {
         }
 
         for i in range(0u, 66) {
-            assert_eq!(*deq.get(i), i);
+            assert_eq!(deq[i], i);
         }
     }
 
diff --git a/src/libcollections/str.rs b/src/libcollections/str.rs
index f3d3506de83..f49371b8e88 100644
--- a/src/libcollections/str.rs
+++ b/src/libcollections/str.rs
@@ -883,6 +883,7 @@ mod tests {
     use std::slice::{AsSlice, ImmutableSlice};
     use string::String;
     use vec::Vec;
+    use slice::CloneableVector;
 
     use unicode::char::UnicodeChar;
 
@@ -1504,7 +1505,7 @@ mod tests {
     fn vec_str_conversions() {
         let s1: String = String::from_str("All mimsy were the borogoves");
 
-        let v: Vec<u8> = Vec::from_slice(s1.as_bytes());
+        let v: Vec<u8> = s1.as_bytes().to_vec();
         let s2: String = String::from_str(from_utf8(v.as_slice()).unwrap());
         let mut i: uint = 0u;
         let n1: uint = s1.len();
diff --git a/src/libcollections/string.rs b/src/libcollections/string.rs
index 848068f20c2..061064ff803 100644
--- a/src/libcollections/string.rs
+++ b/src/libcollections/string.rs
@@ -1036,6 +1036,7 @@ mod tests {
     use str::{Str, StrSlice, Owned};
     use super::{as_string, String};
     use vec::Vec;
+    use slice::CloneableVector;
 
     #[test]
     fn test_as_string() {
@@ -1051,15 +1052,15 @@ mod tests {
 
     #[test]
     fn test_from_utf8() {
-        let xs = Vec::from_slice(b"hello");
+        let xs = b"hello".to_vec();
         assert_eq!(String::from_utf8(xs), Ok(String::from_str("hello")));
 
-        let xs = Vec::from_slice("ศไทย中华Việt Nam".as_bytes());
+        let xs = "ศไทย中华Việt Nam".as_bytes().to_vec();
         assert_eq!(String::from_utf8(xs), Ok(String::from_str("ศไทย中华Việt Nam")));
 
-        let xs = Vec::from_slice(b"hello\xFF");
+        let xs = b"hello\xFF".to_vec();
         assert_eq!(String::from_utf8(xs),
-                   Err(Vec::from_slice(b"hello\xFF")));
+                   Err(b"hello\xFF".to_vec()));
     }
 
     #[test]
@@ -1211,7 +1212,8 @@ mod tests {
     fn test_push_bytes() {
         let mut s = String::from_str("ABC");
         unsafe {
-            s.push_bytes([b'D']);
+            let mv = s.as_mut_vec();
+            mv.push_all([b'D']);
         }
         assert_eq!(s.as_slice(), "ABCD");
     }
@@ -1239,17 +1241,18 @@ mod tests {
     }
 
     #[test]
-    fn test_pop_char() {
+    fn test_pop() {
         let mut data = String::from_str("ประเทศไทย中华b¢€𤭢");
-        assert_eq!(data.pop_char().unwrap(), '𤭢'); // 4 bytes
-        assert_eq!(data.pop_char().unwrap(), '€'); // 3 bytes
-        assert_eq!(data.pop_char().unwrap(), '¢'); // 2 bytes
-        assert_eq!(data.pop_char().unwrap(), 'b'); // 1 bytes
-        assert_eq!(data.pop_char().unwrap(), '华');
+        assert_eq!(data.pop().unwrap(), '𤭢'); // 4 bytes
+        assert_eq!(data.pop().unwrap(), '€'); // 3 bytes
+        assert_eq!(data.pop().unwrap(), '¢'); // 2 bytes
+        assert_eq!(data.pop().unwrap(), 'b'); // 1 bytes
+        assert_eq!(data.pop().unwrap(), '华');
         assert_eq!(data.as_slice(), "ประเทศไทย中");
     }
 
     #[test]
+    #[allow(deprecated)] // use remove(0) instead
     fn test_shift_char() {
         let mut data = String::from_str("𤭢€¢b华ประเทศไทย中");
         assert_eq!(data.shift_char().unwrap(), '𤭢'); // 4 bytes
diff --git a/src/libcollections/vec.rs b/src/libcollections/vec.rs
index f922c189fef..c714e393570 100644
--- a/src/libcollections/vec.rs
+++ b/src/libcollections/vec.rs
@@ -2266,8 +2266,8 @@ mod tests {
     }
 
     #[test]
-    fn test_mut_slice_from() {
-        let mut values = Vec::from_slice([1u8,2,3,4,5]);
+    fn test_slice_from_mut() {
+        let mut values = vec![1u8,2,3,4,5];
         {
             let slice = values.slice_from_mut(2);
             assert!(slice == [3, 4, 5]);
@@ -2280,8 +2280,8 @@ mod tests {
     }
 
     #[test]
-    fn test_mut_slice_to() {
-        let mut values = Vec::from_slice([1u8,2,3,4,5]);
+    fn test_slice_to_mut() {
+        let mut values = vec![1u8,2,3,4,5];
         {
             let slice = values.slice_to_mut(2);
             assert!(slice == [1, 2]);
@@ -2294,8 +2294,8 @@ mod tests {
     }
 
     #[test]
-    fn test_mut_split_at() {
-        let mut values = Vec::from_slice([1u8,2,3,4,5]);
+    fn test_split_at_mut() {
+        let mut values = vec![1u8,2,3,4,5];
         {
             let (left, right) = values.split_at_mut(2);
             {
@@ -2315,7 +2315,7 @@ mod tests {
             }
         }
 
-        assert!(values == Vec::from_slice([2u8, 3, 5, 6, 7]));
+        assert!(values == vec![2u8, 3, 5, 6, 7]);
     }
 
     #[test]
@@ -2355,16 +2355,16 @@ mod tests {
 
     #[test]
     fn test_grow_fn() {
-        let mut v = Vec::from_slice([0u, 1]);
+        let mut v = vec![0u, 1];
         v.grow_fn(3, |i| i);
-        assert!(v == Vec::from_slice([0u, 1, 0, 1, 2]));
+        assert!(v == vec![0u, 1, 0, 1, 2]);
     }
 
     #[test]
     fn test_retain() {
-        let mut vec = Vec::from_slice([1u, 2, 3, 4]);
+        let mut vec = vec![1u, 2, 3, 4];
         vec.retain(|x| x%2 == 0);
-        assert!(vec == Vec::from_slice([2u, 4]));
+        assert!(vec == vec![2u, 4]);
     }
 
     #[test]
@@ -2567,32 +2567,32 @@ mod tests {
 
     #[test]
     fn test_move_items() {
-        let mut vec = vec!(1i, 2, 3);
-        let mut vec2 : Vec<int> = vec!();
+        let vec = vec![1, 2, 3];
+        let mut vec2 : Vec<i32> = vec![];
         for i in vec.into_iter() {
             vec2.push(i);
         }
-        assert!(vec2 == vec!(1i, 2, 3));
+        assert!(vec2 == vec![1, 2, 3]);
     }
 
     #[test]
     fn test_move_items_reverse() {
-        let mut vec = vec!(1i, 2, 3);
-        let mut vec2 : Vec<int> = vec!();
+        let vec = vec![1, 2, 3];
+        let mut vec2 : Vec<i32> = vec![];
         for i in vec.into_iter().rev() {
             vec2.push(i);
         }
-        assert!(vec2 == vec!(3i, 2, 1));
+        assert!(vec2 == vec![3, 2, 1]);
     }
 
     #[test]
     fn test_move_items_zero_sized() {
-        let mut vec = vec!((), (), ());
-        let mut vec2 : Vec<()> = vec!();
+        let vec = vec![(), (), ()];
+        let mut vec2 : Vec<()> = vec![];
         for i in vec.into_iter() {
             vec2.push(i);
         }
-        assert!(vec2 == vec!((), (), ()));
+        assert!(vec2 == vec![(), (), ()]);
     }
 
     #[test]
@@ -2707,7 +2707,7 @@ mod tests {
         b.bytes = src_len as u64;
 
         b.iter(|| {
-            let dst = Vec::from_slice(src.clone().as_slice());
+            let dst = src.clone().as_slice().to_vec();
             assert_eq!(dst.len(), src_len);
             assert!(dst.iter().enumerate().all(|(i, x)| i == *x));
         });
@@ -2871,7 +2871,7 @@ mod tests {
 
         b.iter(|| {
             let mut dst = dst.clone();
-            dst.push_all_move(src.clone());
+            dst.extend(src.clone().into_iter());
             assert_eq!(dst.len(), dst_len + src_len);
             assert!(dst.iter().enumerate().all(|(i, x)| i == *x));
         });
diff --git a/src/libcoretest/char.rs b/src/libcoretest/char.rs
index 9628d7950b5..8807756d01b 100644
--- a/src/libcoretest/char.rs
+++ b/src/libcoretest/char.rs
@@ -117,7 +117,7 @@ fn test_is_digit() {
 fn test_escape_default() {
     fn string(c: char) -> String {
         let mut result = String::new();
-        escape_default(c, |c| { result.push_char(c); });
+        escape_default(c, |c| { result.push(c); });
         return result;
     }
     let s = string('\n');
@@ -152,7 +152,7 @@ fn test_escape_default() {
 fn test_escape_unicode() {
     fn string(c: char) -> String {
         let mut result = String::new();
-        escape_unicode(c, |c| { result.push_char(c); });
+        escape_unicode(c, |c| { result.push(c); });
         return result;
     }
     let s = string('\x00');
diff --git a/src/libcoretest/iter.rs b/src/libcoretest/iter.rs
index 4135a02cc61..476a2b50fcc 100644
--- a/src/libcoretest/iter.rs
+++ b/src/libcoretest/iter.rs
@@ -868,7 +868,7 @@ fn bench_multiple_take(b: &mut Bencher) {
     let mut it = range(0u, 42).cycle();
     b.iter(|| {
         let n = it.next().unwrap();
-        for m in range(0u, n) {
+        for _ in range(0u, n) {
             it.take(it.next().unwrap()).all(|_| true);
         }
     });
diff --git a/src/libcoretest/mem.rs b/src/libcoretest/mem.rs
index 76409c8612f..e4dde7c641e 100644
--- a/src/libcoretest/mem.rs
+++ b/src/libcoretest/mem.rs
@@ -109,7 +109,7 @@ fn test_transmute() {
     }
 
     unsafe {
-        assert!(Vec::from_slice([76u8]) == transmute("L".to_string()));
+        assert!(vec![76u8] == transmute("L".to_string()));
     }
 }
 
diff --git a/src/libcoretest/result.rs b/src/libcoretest/result.rs
index b45ac6a993e..b023833f394 100644
--- a/src/libcoretest/result.rs
+++ b/src/libcoretest/result.rs
@@ -89,6 +89,7 @@ fn test_collect() {
 }
 
 #[test]
+#[allow(deprecated)] // we know fold_ is deprecated
 fn test_fold() {
     assert_eq!(fold_(range(0i, 0)
                     .map(|_| Ok::<(), ()>(()))),
diff --git a/src/libglob/lib.rs b/src/libglob/lib.rs
index d9584c2db4e..0313c22933c 100644
--- a/src/libglob/lib.rs
+++ b/src/libglob/lib.rs
@@ -682,7 +682,7 @@ mod test {
     }
 
     #[test]
-    #[ignore(cfg(windows))] // FIXME (#9406)
+    #[cfg_attr(windows, ignore)] // FIXME (#9406)
     fn test_lots_of_files() {
         // this is a good test because it touches lots of differently named files
         glob("/*/*/*/*").skip(10000).next();
diff --git a/src/libgraphviz/lib.rs b/src/libgraphviz/lib.rs
index f7908b76ab5..e21186a5fc8 100644
--- a/src/libgraphviz/lib.rs
+++ b/src/libgraphviz/lib.rs
@@ -736,6 +736,20 @@ r#"digraph single_edge {
     }
 
     #[test]
+    fn test_some_labelled() {
+        let labels : Trivial = SomeNodesLabelled(vec![Some("A"), None]);
+        let result = test_input(LabelledGraph::new("test_some_labelled", labels,
+                                                   vec![edge(0, 1, "A-1")]));
+        assert_eq!(result.unwrap().as_slice(),
+r#"digraph test_some_labelled {
+    N0[label="A"];
+    N1[label="N1"];
+    N0 -> N1[label="A-1"];
+}
+"#);
+    }
+
+    #[test]
     fn single_cyclic_node() {
         let labels : Trivial = UnlabelledNodes(1);
         let r = test_input(LabelledGraph::new("single_cyclic_node", labels,
diff --git a/src/libgreen/sched.rs b/src/libgreen/sched.rs
index f36a43c3c29..f46d96ffe4a 100644
--- a/src/libgreen/sched.rs
+++ b/src/libgreen/sched.rs
@@ -1027,7 +1027,6 @@ mod test {
     use std::rt::task::TaskOpts;
     use std::rt::task::Task;
     use std::rt::local::Local;
-    use std::time::Duration;
 
     use {TaskState, PoolConfig, SchedPool};
     use basic;
diff --git a/src/libnum/integer.rs b/src/libnum/integer.rs
index 7c786976699..c5d076a70b5 100644
--- a/src/libnum/integer.rs
+++ b/src/libnum/integer.rs
@@ -462,6 +462,7 @@ macro_rules! impl_integer_for_uint {
             }
 
             #[test]
+            #[allow(type_overflow)]
             fn test_lcm() {
                 assert_eq!((1 as $T).lcm(&0), 0 as $T);
                 assert_eq!((0 as $T).lcm(&1), 0 as $T);
diff --git a/src/librustrt/mutex.rs b/src/librustrt/mutex.rs
index 7d4fb2f5c52..b328df1949e 100644
--- a/src/librustrt/mutex.rs
+++ b/src/librustrt/mutex.rs
@@ -655,19 +655,19 @@ mod test {
 
     #[test]
     fn smoke_lock() {
-        static lock: StaticNativeMutex = NATIVE_MUTEX_INIT;
+        static LK: StaticNativeMutex = NATIVE_MUTEX_INIT;
         unsafe {
-            let _guard = lock.lock();
+            let _guard = LK.lock();
         }
     }
 
     #[test]
     fn smoke_cond() {
-        static lock: StaticNativeMutex = NATIVE_MUTEX_INIT;
+        static LK: StaticNativeMutex = NATIVE_MUTEX_INIT;
         unsafe {
-            let guard = lock.lock();
+            let guard = LK.lock();
             let t = Thread::start(proc() {
-                let guard = lock.lock();
+                let guard = LK.lock();
                 guard.signal();
             });
             guard.wait();
@@ -679,25 +679,25 @@ mod test {
 
     #[test]
     fn smoke_lock_noguard() {
-        static lock: StaticNativeMutex = NATIVE_MUTEX_INIT;
+        static LK: StaticNativeMutex = NATIVE_MUTEX_INIT;
         unsafe {
-            lock.lock_noguard();
-            lock.unlock_noguard();
+            LK.lock_noguard();
+            LK.unlock_noguard();
         }
     }
 
     #[test]
     fn smoke_cond_noguard() {
-        static lock: StaticNativeMutex = NATIVE_MUTEX_INIT;
+        static LK: StaticNativeMutex = NATIVE_MUTEX_INIT;
         unsafe {
-            lock.lock_noguard();
+            LK.lock_noguard();
             let t = Thread::start(proc() {
-                lock.lock_noguard();
-                lock.signal_noguard();
-                lock.unlock_noguard();
+                LK.lock_noguard();
+                LK.signal_noguard();
+                LK.unlock_noguard();
             });
-            lock.wait_noguard();
-            lock.unlock_noguard();
+            LK.wait_noguard();
+            LK.unlock_noguard();
 
             t.join();
         }
diff --git a/src/libserialize/json.rs b/src/libserialize/json.rs
index 5d9211caac1..eda38e96cbb 100644
--- a/src/libserialize/json.rs
+++ b/src/libserialize/json.rs
@@ -2964,8 +2964,8 @@ mod tests {
         let s = "{\"f\":null,\"a\":[null,123]}";
         let obj: FloatStruct = super::decode(s).unwrap();
         assert!(obj.f.is_nan());
-        assert!(obj.a.get(0).is_nan());
-        assert_eq!(obj.a.get(1), &123f64);
+        assert!(obj.a[0].is_nan());
+        assert_eq!(obj.a[1], 123f64);
     }
 
     #[test]
diff --git a/src/libstd/ascii.rs b/src/libstd/ascii.rs
index 7a36680b3a6..71d38ac6659 100644
--- a/src/libstd/ascii.rs
+++ b/src/libstd/ascii.rs
@@ -582,15 +582,15 @@ mod tests {
         assert_eq!('A'.to_ascii().to_char(), 'A');
         assert_eq!('A'.to_ascii().to_byte(), 65u8);
 
-        assert_eq!('A'.to_ascii().to_lower().to_char(), 'a');
-        assert_eq!('Z'.to_ascii().to_lower().to_char(), 'z');
-        assert_eq!('a'.to_ascii().to_upper().to_char(), 'A');
-        assert_eq!('z'.to_ascii().to_upper().to_char(), 'Z');
-
-        assert_eq!('@'.to_ascii().to_lower().to_char(), '@');
-        assert_eq!('['.to_ascii().to_lower().to_char(), '[');
-        assert_eq!('`'.to_ascii().to_upper().to_char(), '`');
-        assert_eq!('{'.to_ascii().to_upper().to_char(), '{');
+        assert_eq!('A'.to_ascii().to_lowercase().to_char(), 'a');
+        assert_eq!('Z'.to_ascii().to_lowercase().to_char(), 'z');
+        assert_eq!('a'.to_ascii().to_uppercase().to_char(), 'A');
+        assert_eq!('z'.to_ascii().to_uppercase().to_char(), 'Z');
+
+        assert_eq!('@'.to_ascii().to_lowercase().to_char(), '@');
+        assert_eq!('['.to_ascii().to_lowercase().to_char(), '[');
+        assert_eq!('`'.to_ascii().to_uppercase().to_char(), '`');
+        assert_eq!('{'.to_ascii().to_uppercase().to_char(), '{');
 
         assert!('0'.to_ascii().is_digit());
         assert!('9'.to_ascii().is_digit());
diff --git a/src/libstd/bitflags.rs b/src/libstd/bitflags.rs
index adb55f2cc8c..42e3a823ff4 100644
--- a/src/libstd/bitflags.rs
+++ b/src/libstd/bitflags.rs
@@ -273,8 +273,8 @@ mod tests {
     }
 
     bitflags! {
-        flags AnotherSetOfFlags: uint {
-            const AnotherFlag = 1u,
+        flags AnotherSetOfFlags: i8 {
+            const AnotherFlag = -1_i8,
         }
     }
 
@@ -283,6 +283,9 @@ mod tests {
         assert_eq!(Flags::empty().bits(), 0x00000000);
         assert_eq!(FlagA.bits(), 0x00000001);
         assert_eq!(FlagABC.bits(), 0x00000111);
+
+        assert_eq!(AnotherSetOfFlags::empty().bits(), 0x00);
+        assert_eq!(AnotherFlag.bits(), !0_i8);
     }
 
     #[test]
@@ -292,6 +295,8 @@ mod tests {
         assert!(Flags::from_bits(0x10) == Some(FlagB));
         assert!(Flags::from_bits(0x11) == Some(FlagA | FlagB));
         assert!(Flags::from_bits(0x1000) == None);
+
+        assert!(AnotherSetOfFlags::from_bits(!0_i8) == Some(AnotherFlag));
     }
 
     #[test]
@@ -302,6 +307,8 @@ mod tests {
         assert!(Flags::from_bits_truncate(0x11) == (FlagA | FlagB));
         assert!(Flags::from_bits_truncate(0x1000) == Flags::empty());
         assert!(Flags::from_bits_truncate(0x1001) == FlagA);
+
+        assert!(AnotherSetOfFlags::from_bits_truncate(0_i8) == AnotherSetOfFlags::empty());
     }
 
     #[test]
@@ -309,6 +316,8 @@ mod tests {
         assert!(Flags::empty().is_empty());
         assert!(!FlagA.is_empty());
         assert!(!FlagABC.is_empty());
+
+        assert!(!AnotherFlag.is_empty());
     }
 
     #[test]
@@ -316,6 +325,8 @@ mod tests {
         assert!(Flags::all().is_all());
         assert!(!FlagA.is_all());
         assert!(FlagABC.is_all());
+
+        assert!(AnotherFlag.is_all());
     }
 
     #[test]
@@ -323,6 +334,8 @@ mod tests {
         let e1 = Flags::empty();
         let e2 = Flags::empty();
         assert!(!e1.intersects(e2));
+
+        assert!(AnotherFlag.intersects(AnotherFlag));
     }
 
     #[test]
@@ -353,6 +366,8 @@ mod tests {
         assert!(!e1.contains(e2));
         assert!(e2.contains(e1));
         assert!(FlagABC.contains(e2));
+
+        assert!(AnotherFlag.contains(AnotherFlag));
     }
 
     #[test]
@@ -361,6 +376,10 @@ mod tests {
         let e2 = FlagA | FlagB;
         e1.insert(e2);
         assert!(e1 == e2);
+
+        let mut e3 = AnotherSetOfFlags::empty();
+        e3.insert(AnotherFlag);
+        assert!(e3 == AnotherFlag);
     }
 
     #[test]
@@ -369,6 +388,10 @@ mod tests {
         let e2 = FlagA | FlagC;
         e1.remove(e2);
         assert!(e1 == FlagB);
+
+        let mut e3 = AnotherFlag;
+        e3.remove(AnotherFlag);
+        assert!(e3 == AnotherSetOfFlags::empty());
     }
 
     #[test]
@@ -383,6 +406,10 @@ mod tests {
         let mut e3 = e1;
         e3.toggle(e2);
         assert!(e3 == FlagA | FlagB);
+
+        let mut m4 = AnotherSetOfFlags::empty();
+        m4.toggle(AnotherSetOfFlags::empty());
+        assert!(m4 == AnotherSetOfFlags::empty());
     }
 
     #[test]
diff --git a/src/libstd/collections/hashmap/map.rs b/src/libstd/collections/hashmap/map.rs
index ef40402105b..bdd9d8d9d1f 100644
--- a/src/libstd/collections/hashmap/map.rs
+++ b/src/libstd/collections/hashmap/map.rs
@@ -1930,6 +1930,7 @@ mod test_map {
     }
 
     #[test]
+    #[allow(deprecated)] // insert_or_update_with
     fn test_update_with() {
         let mut m = HashMap::with_capacity(4);
         assert!(m.insert(1i, 2i));
diff --git a/src/libstd/io/buffered.rs b/src/libstd/io/buffered.rs
index 754b440b0de..8ab0d3a5504 100644
--- a/src/libstd/io/buffered.rs
+++ b/src/libstd/io/buffered.rs
@@ -400,7 +400,7 @@ mod test {
 
     impl Reader for ShortReader {
         fn read(&mut self, _: &mut [u8]) -> io::IoResult<uint> {
-            match self.lengths.shift() {
+            match self.lengths.remove(0) {
                 Some(i) => Ok(i),
                 None => Err(io::standard_error(io::EndOfFile))
             }
@@ -551,7 +551,7 @@ mod test {
 
     #[test]
     fn test_read_line() {
-        let in_buf = MemReader::new(Vec::from_slice(b"a\nb\nc"));
+        let in_buf = MemReader::new(b"a\nb\nc".to_vec());
         let mut reader = BufferedReader::with_capacity(2, in_buf);
         assert_eq!(reader.read_line(), Ok("a\n".to_string()));
         assert_eq!(reader.read_line(), Ok("b\n".to_string()));
@@ -561,7 +561,7 @@ mod test {
 
     #[test]
     fn test_lines() {
-        let in_buf = MemReader::new(Vec::from_slice(b"a\nb\nc"));
+        let in_buf = MemReader::new(b"a\nb\nc".to_vec());
         let mut reader = BufferedReader::with_capacity(2, in_buf);
         let mut it = reader.lines();
         assert_eq!(it.next(), Some(Ok("a\n".to_string())));
diff --git a/src/libstd/io/fs.rs b/src/libstd/io/fs.rs
index 82494d41aa3..e8fed67fffe 100644
--- a/src/libstd/io/fs.rs
+++ b/src/libstd/io/fs.rs
@@ -1415,7 +1415,7 @@ mod test {
         check!(copy(&input, &output));
 
         assert_eq!(check!(File::open(&output).read_to_end()),
-                   (Vec::from_slice(b"foo")));
+                   b"foo".to_vec());
     }
 
     #[test]
@@ -1459,7 +1459,7 @@ mod test {
         }
         assert_eq!(check!(stat(&out)).size, check!(stat(&input)).size);
         assert_eq!(check!(File::open(&out).read_to_end()),
-                   (Vec::from_slice(b"foobar")));
+                   b"foobar".to_vec());
     }
 
     #[cfg(not(windows))] // apparently windows doesn't like symlinks
@@ -1497,7 +1497,7 @@ mod test {
         assert_eq!(check!(stat(&out)).size, check!(stat(&input)).size);
         assert_eq!(check!(stat(&out)).size, check!(input.stat()).size);
         assert_eq!(check!(File::open(&out).read_to_end()),
-                   (Vec::from_slice(b"foobar")));
+                   b"foobar".to_vec());
 
         // can't link to yourself
         match link(&input, &input) {
@@ -1560,7 +1560,7 @@ mod test {
         check!(file.fsync());
         assert_eq!(check!(file.stat()).size, 10);
         assert_eq!(check!(File::open(&path).read_to_end()),
-                   (Vec::from_slice(b"foobar\0\0\0\0")));
+                   b"foobar\0\0\0\0".to_vec());
 
         // Truncate to a smaller length, don't seek, and then write something.
         // Ensure that the intermediate zeroes are all filled in (we're seeked
@@ -1571,7 +1571,7 @@ mod test {
         check!(file.fsync());
         assert_eq!(check!(file.stat()).size, 9);
         assert_eq!(check!(File::open(&path).read_to_end()),
-                   (Vec::from_slice(b"fo\0\0\0\0wut")));
+                   b"fo\0\0\0\0wut".to_vec());
         drop(file);
     }
 
diff --git a/src/libstd/io/mem.rs b/src/libstd/io/mem.rs
index 0f8e0ed52f8..f86ae05d623 100644
--- a/src/libstd/io/mem.rs
+++ b/src/libstd/io/mem.rs
@@ -617,7 +617,7 @@ mod test {
     #[bench]
     fn bench_mem_reader(b: &mut Bencher) {
         b.iter(|| {
-            let buf = Vec::from_slice([5 as u8, ..100]);
+            let buf = [5 as u8, ..100].to_vec();
             {
                 let mut rdr = MemReader::new(buf);
                 for _i in range(0u, 10) {
diff --git a/src/libstd/io/mod.rs b/src/libstd/io/mod.rs
index d18b3cdf2e7..8592d48974a 100644
--- a/src/libstd/io/mod.rs
+++ b/src/libstd/io/mod.rs
@@ -1949,62 +1949,62 @@ mod tests {
                         return Ok(0);
                     }
                 };
-                behavior.shift();
+                behavior.remove(0);
             }
         }
     }
 
     #[test]
     fn test_read_at_least() {
-        let mut r = BadReader::new(MemReader::new(Vec::from_slice(b"hello, world!")),
-                                   Vec::from_slice([GoodBehavior(uint::MAX)]));
+        let mut r = BadReader::new(MemReader::new(b"hello, world!".to_vec()),
+                                   vec![GoodBehavior(uint::MAX)]);
         let mut buf = [0u8, ..5];
         assert!(r.read_at_least(1, buf).unwrap() >= 1);
         assert!(r.read_exact(5).unwrap().len() == 5); // read_exact uses read_at_least
         assert!(r.read_at_least(0, buf).is_ok());
 
-        let mut r = BadReader::new(MemReader::new(Vec::from_slice(b"hello, world!")),
-                                   Vec::from_slice([BadBehavior(50), GoodBehavior(uint::MAX)]));
+        let mut r = BadReader::new(MemReader::new(b"hello, world!".to_vec()),
+                                   vec![BadBehavior(50), GoodBehavior(uint::MAX)]);
         assert!(r.read_at_least(1, buf).unwrap() >= 1);
 
-        let mut r = BadReader::new(MemReader::new(Vec::from_slice(b"hello, world!")),
-                                   Vec::from_slice([BadBehavior(1), GoodBehavior(1),
-                                                    BadBehavior(50), GoodBehavior(uint::MAX)]));
+        let mut r = BadReader::new(MemReader::new(b"hello, world!".to_vec()),
+                                   vec![BadBehavior(1), GoodBehavior(1),
+                                        BadBehavior(50), GoodBehavior(uint::MAX)]);
         assert!(r.read_at_least(1, buf).unwrap() >= 1);
         assert!(r.read_at_least(1, buf).unwrap() >= 1);
 
-        let mut r = BadReader::new(MemReader::new(Vec::from_slice(b"hello, world!")),
-                                   Vec::from_slice([BadBehavior(uint::MAX)]));
+        let mut r = BadReader::new(MemReader::new(b"hello, world!".to_vec()),
+                                   vec![BadBehavior(uint::MAX)]);
         assert_eq!(r.read_at_least(1, buf).unwrap_err().kind, NoProgress);
 
-        let mut r = MemReader::new(Vec::from_slice(b"hello, world!"));
+        let mut r = MemReader::new(b"hello, world!".to_vec());
         assert_eq!(r.read_at_least(5, buf).unwrap(), 5);
         assert_eq!(r.read_at_least(6, buf).unwrap_err().kind, InvalidInput);
     }
 
     #[test]
     fn test_push_at_least() {
-        let mut r = BadReader::new(MemReader::new(Vec::from_slice(b"hello, world!")),
-                                   Vec::from_slice([GoodBehavior(uint::MAX)]));
+        let mut r = BadReader::new(MemReader::new(b"hello, world!".to_vec()),
+                                   vec![GoodBehavior(uint::MAX)]);
         let mut buf = Vec::new();
         assert!(r.push_at_least(1, 5, &mut buf).unwrap() >= 1);
         assert!(r.push_at_least(0, 5, &mut buf).is_ok());
 
-        let mut r = BadReader::new(MemReader::new(Vec::from_slice(b"hello, world!")),
-                                   Vec::from_slice([BadBehavior(50), GoodBehavior(uint::MAX)]));
+        let mut r = BadReader::new(MemReader::new(b"hello, world!".to_vec()),
+                                   vec![BadBehavior(50), GoodBehavior(uint::MAX)]);
         assert!(r.push_at_least(1, 5, &mut buf).unwrap() >= 1);
 
-        let mut r = BadReader::new(MemReader::new(Vec::from_slice(b"hello, world!")),
-                                   Vec::from_slice([BadBehavior(1), GoodBehavior(1),
-                                                    BadBehavior(50), GoodBehavior(uint::MAX)]));
+        let mut r = BadReader::new(MemReader::new(b"hello, world!".to_vec()),
+                                   vec![BadBehavior(1), GoodBehavior(1),
+                                        BadBehavior(50), GoodBehavior(uint::MAX)]);
         assert!(r.push_at_least(1, 5, &mut buf).unwrap() >= 1);
         assert!(r.push_at_least(1, 5, &mut buf).unwrap() >= 1);
 
-        let mut r = BadReader::new(MemReader::new(Vec::from_slice(b"hello, world!")),
-                                   Vec::from_slice([BadBehavior(uint::MAX)]));
+        let mut r = BadReader::new(MemReader::new(b"hello, world!".to_vec()),
+                                   vec![BadBehavior(uint::MAX)]);
         assert_eq!(r.push_at_least(1, 5, &mut buf).unwrap_err().kind, NoProgress);
 
-        let mut r = MemReader::new(Vec::from_slice(b"hello, world!"));
+        let mut r = MemReader::new(b"hello, world!".to_vec());
         assert_eq!(r.push_at_least(5, 1, &mut buf).unwrap_err().kind, InvalidInput);
     }
 
diff --git a/src/libstd/io/net/addrinfo.rs b/src/libstd/io/net/addrinfo.rs
index 27241f9bfa5..9d85701eb29 100644
--- a/src/libstd/io/net/addrinfo.rs
+++ b/src/libstd/io/net/addrinfo.rs
@@ -126,9 +126,7 @@ fn lookup(hostname: Option<&str>, servname: Option<&str>, hint: Option<Hint>)
 #[cfg(all(test, not(target_os = "android")))]
 mod test {
     use super::*;
-    use io::net::tcp::*;
     use io::net::ip::*;
-    use io::net::udp::*;
 
     #[test]
     fn dns_smoke_test() {
diff --git a/src/libstd/io/net/tcp.rs b/src/libstd/io/net/tcp.rs
index e2a850c58e4..d6528ce977e 100644
--- a/src/libstd/io/net/tcp.rs
+++ b/src/libstd/io/net/tcp.rs
@@ -521,10 +521,8 @@ impl Clone for TcpAcceptor {
 #[cfg(test)]
 #[allow(experimental)]
 mod test {
-    use super::*;
     use io::net::tcp::*;
     use io::net::ip::*;
-    use io::net::udp::*;
     use io::*;
     use io::test::*;
     use prelude::*;
diff --git a/src/libstd/io/pipe.rs b/src/libstd/io/pipe.rs
index d7d478bd458..9362a48a6f0 100644
--- a/src/libstd/io/pipe.rs
+++ b/src/libstd/io/pipe.rs
@@ -118,7 +118,6 @@ impl Writer for PipeStream {
 
 #[cfg(test)]
 mod test {
-    use super::*;
     use prelude::*;
 
     #[test]
diff --git a/src/libstd/io/process.rs b/src/libstd/io/process.rs
index 5de4bc10e1a..88f8434b957 100644
--- a/src/libstd/io/process.rs
+++ b/src/libstd/io/process.rs
@@ -727,7 +727,7 @@ mod tests {
         assert!(p.is_ok());
         let mut p = p.unwrap();
         assert!(p.stdout.is_some());
-        let ret = read_all(p.stdout.get_mut_ref() as &mut Reader);
+        let ret = read_all(p.stdout.as_mut().unwrap() as &mut Reader);
         assert!(p.wait().unwrap().success());
         return ret;
     }
@@ -758,9 +758,9 @@ mod tests {
                             .stdin(CreatePipe(true, false))
                             .stdout(CreatePipe(false, true))
                             .spawn().unwrap();
-        p.stdin.get_mut_ref().write("foobar".as_bytes()).unwrap();
+        p.stdin.as_mut().unwrap().write("foobar".as_bytes()).unwrap();
         drop(p.stdin.take());
-        let out = read_all(p.stdout.get_mut_ref() as &mut Reader);
+        let out = read_all(p.stdout.as_mut().unwrap() as &mut Reader);
         assert!(p.wait().unwrap().success());
         assert_eq!(out, "foobar\n".to_string());
     }
@@ -1019,7 +1019,7 @@ mod tests {
     fn test_add_to_env() {
         let prog = env_cmd().env("RUN_TEST_NEW_ENV", "123").spawn().unwrap();
         let result = prog.wait_with_output().unwrap();
-        let output = str::from_utf8_lossy(result.output.as_slice()).into_string();
+        let output = String::from_utf8_lossy(result.output.as_slice()).into_string();
 
         assert!(output.as_slice().contains("RUN_TEST_NEW_ENV=123"),
                 "didn't find RUN_TEST_NEW_ENV inside of:\n\n{}", output);
diff --git a/src/libstd/io/stdio.rs b/src/libstd/io/stdio.rs
index b174f19f198..93037f765d6 100644
--- a/src/libstd/io/stdio.rs
+++ b/src/libstd/io/stdio.rs
@@ -385,6 +385,7 @@ mod tests {
     use super::*;
     use prelude::*;
 
+    #[test]
     fn smoke() {
         // Just make sure we can acquire handles
         stdin();
@@ -392,6 +393,7 @@ mod tests {
         stderr();
     }
 
+    #[test]
     fn capture_stdout() {
         use io::{ChanReader, ChanWriter};
 
@@ -404,9 +406,10 @@ mod tests {
         assert_eq!(r.read_to_string().unwrap(), "hello!\n".to_string());
     }
 
+    #[test]
     fn capture_stderr() {
         use realstd::comm::channel;
-        use realstd::io::{Writer, ChanReader, ChanWriter, Reader};
+        use realstd::io::{ChanReader, ChanWriter, Reader};
 
         let (tx, rx) = channel();
         let (mut r, w) = (ChanReader::new(rx), ChanWriter::new(tx));
diff --git a/src/libstd/io/timer.rs b/src/libstd/io/timer.rs
index e7df0285540..a657989fe12 100644
--- a/src/libstd/io/timer.rs
+++ b/src/libstd/io/timer.rs
@@ -235,7 +235,6 @@ mod test {
     use super::*;
     use time::Duration;
     use task::spawn;
-    use io::*;
     use prelude::*;
 
     #[test]
diff --git a/src/libstd/num/strconv.rs b/src/libstd/num/strconv.rs
index f97bbe0dc8e..48ee7664c16 100644
--- a/src/libstd/num/strconv.rs
+++ b/src/libstd/num/strconv.rs
@@ -819,72 +819,82 @@ mod bench {
     mod uint {
         use super::test::Bencher;
         use rand::{weak_rng, Rng};
-        use num::ToStrRadix;
+        use std::fmt;
+
+        #[inline]
+        fn to_string(x: uint, base: u8) {
+            format!("{}", fmt::radix(x, base));
+        }
 
         #[bench]
         fn to_str_bin(b: &mut Bencher) {
             let mut rng = weak_rng();
-            b.iter(|| { rng.gen::<uint>().to_str_radix(2); })
+            b.iter(|| { to_string(rng.gen::<uint>(), 2); })
         }
 
         #[bench]
         fn to_str_oct(b: &mut Bencher) {
             let mut rng = weak_rng();
-            b.iter(|| { rng.gen::<uint>().to_str_radix(8); })
+            b.iter(|| { to_string(rng.gen::<uint>(), 8); })
         }
 
         #[bench]
         fn to_str_dec(b: &mut Bencher) {
             let mut rng = weak_rng();
-            b.iter(|| { rng.gen::<uint>().to_str_radix(10); })
+            b.iter(|| { to_string(rng.gen::<uint>(), 10); })
         }
 
         #[bench]
         fn to_str_hex(b: &mut Bencher) {
             let mut rng = weak_rng();
-            b.iter(|| { rng.gen::<uint>().to_str_radix(16); })
+            b.iter(|| { to_string(rng.gen::<uint>(), 16); })
         }
 
         #[bench]
         fn to_str_base_36(b: &mut Bencher) {
             let mut rng = weak_rng();
-            b.iter(|| { rng.gen::<uint>().to_str_radix(36); })
+            b.iter(|| { to_string(rng.gen::<uint>(), 36); })
         }
     }
 
     mod int {
         use super::test::Bencher;
         use rand::{weak_rng, Rng};
-        use num::ToStrRadix;
+        use std::fmt;
+
+        #[inline]
+        fn to_string(x: int, base: u8) {
+            format!("{}", fmt::radix(x, base));
+        }
 
         #[bench]
         fn to_str_bin(b: &mut Bencher) {
             let mut rng = weak_rng();
-            b.iter(|| { rng.gen::<int>().to_str_radix(2); })
+            b.iter(|| { to_string(rng.gen::<int>(), 2); })
         }
 
         #[bench]
         fn to_str_oct(b: &mut Bencher) {
             let mut rng = weak_rng();
-            b.iter(|| { rng.gen::<int>().to_str_radix(8); })
+            b.iter(|| { to_string(rng.gen::<int>(), 8); })
         }
 
         #[bench]
         fn to_str_dec(b: &mut Bencher) {
             let mut rng = weak_rng();
-            b.iter(|| { rng.gen::<int>().to_str_radix(10); })
+            b.iter(|| { to_string(rng.gen::<int>(), 10); })
         }
 
         #[bench]
         fn to_str_hex(b: &mut Bencher) {
             let mut rng = weak_rng();
-            b.iter(|| { rng.gen::<int>().to_str_radix(16); })
+            b.iter(|| { to_string(rng.gen::<int>(), 16); })
         }
 
         #[bench]
         fn to_str_base_36(b: &mut Bencher) {
             let mut rng = weak_rng();
-            b.iter(|| { rng.gen::<int>().to_str_radix(36); })
+            b.iter(|| { to_string(rng.gen::<int>(), 36); })
         }
     }
 
diff --git a/src/libstd/path/posix.rs b/src/libstd/path/posix.rs
index f7fb9adb1fb..27eafdab642 100644
--- a/src/libstd/path/posix.rs
+++ b/src/libstd/path/posix.rs
@@ -775,7 +775,7 @@ mod tests {
         t!(s: "a/b/c", ["d".to_string(), "e".to_string()], "a/b/c/d/e");
         t!(v: b"a/b/c", [b"d", b"e"], b"a/b/c/d/e");
         t!(v: b"a/b/c", [b"d", b"/e", b"f"], b"/e/f");
-        t!(v: b"a/b/c", [Vec::from_slice(b"d"), Vec::from_slice(b"e")], b"a/b/c/d/e");
+        t!(v: b"a/b/c", [b"d".to_vec(), b"e".to_vec()], b"a/b/c/d/e");
     }
 
     #[test]
@@ -879,7 +879,7 @@ mod tests {
         t!(s: "a/b/c", ["d", "/e", "f"], "/e/f");
         t!(s: "a/b/c", ["d".to_string(), "e".to_string()], "a/b/c/d/e");
         t!(v: b"a/b/c", [b"d", b"e"], b"a/b/c/d/e");
-        t!(v: b"a/b/c", [Vec::from_slice(b"d"), Vec::from_slice(b"e")], b"a/b/c/d/e");
+        t!(v: b"a/b/c", [b"d".to_vec(), b"e".to_vec()], b"a/b/c/d/e");
     }
 
     #[test]
diff --git a/src/libstd/rand/reader.rs b/src/libstd/rand/reader.rs
index fe5d8fc068c..8ca1cec3e0a 100644
--- a/src/libstd/rand/reader.rs
+++ b/src/libstd/rand/reader.rs
@@ -76,7 +76,6 @@ mod test {
 
     use super::ReaderRng;
     use io::MemReader;
-    use mem;
     use rand::Rng;
 
     #[test]
@@ -87,25 +86,25 @@ mod test {
                      0,   0, 0, 0, 0, 0, 0, 3];
         let mut rng = ReaderRng::new(MemReader::new(v));
 
-        assert_eq!(rng.next_u64(), mem::to_be64(1));
-        assert_eq!(rng.next_u64(), mem::to_be64(2));
-        assert_eq!(rng.next_u64(), mem::to_be64(3));
+        assert_eq!(rng.next_u64(), 1_u64.to_be());
+        assert_eq!(rng.next_u64(), 2_u64.to_be());
+        assert_eq!(rng.next_u64(), 3_u64.to_be());
     }
     #[test]
     fn test_reader_rng_u32() {
         let v = vec![0u8, 0, 0, 1, 0, 0, 0, 2, 0, 0, 0, 3];
         let mut rng = ReaderRng::new(MemReader::new(v));
 
-        assert_eq!(rng.next_u32(), mem::to_be32(1));
-        assert_eq!(rng.next_u32(), mem::to_be32(2));
-        assert_eq!(rng.next_u32(), mem::to_be32(3));
+        assert_eq!(rng.next_u32(), 1_u32.to_be());
+        assert_eq!(rng.next_u32(), 2_u32.to_be());
+        assert_eq!(rng.next_u32(), 3_u32.to_be());
     }
     #[test]
     fn test_reader_rng_fill_bytes() {
         let v = [1u8, 2, 3, 4, 5, 6, 7, 8];
         let mut w = [0u8, .. 8];
 
-        let mut rng = ReaderRng::new(MemReader::new(Vec::from_slice(v)));
+        let mut rng = ReaderRng::new(MemReader::new(v.as_slice().to_vec()));
         rng.fill_bytes(w);
 
         assert!(v == w);
diff --git a/src/libstd/task.rs b/src/libstd/task.rs
index 977b3018fa7..04d3bb8b3a7 100644
--- a/src/libstd/task.rs
+++ b/src/libstd/task.rs
@@ -447,6 +447,7 @@ mod test {
     }
 
     #[test]
+    #[allow(deprecated)]
     fn test_with_wrapper() {
         let (tx, rx) = channel();
         TaskBuilder::new().with_wrapper(proc(body) {
diff --git a/src/libsync/comm/duplex.rs b/src/libsync/comm/duplex.rs
index 587827d2bc5..1dc1f4b87f2 100644
--- a/src/libsync/comm/duplex.rs
+++ b/src/libsync/comm/duplex.rs
@@ -59,10 +59,11 @@ impl<S:Send,R:Send> DuplexStream<S, R> {
     }
 }
 
+#[allow(deprecated)]
 #[cfg(test)]
 mod test {
     use std::prelude::*;
-    use comm::{duplex};
+    use comm::duplex;
 
     #[test]
     pub fn duplex_stream_1() {
diff --git a/src/libsync/deque.rs b/src/libsync/deque.rs
index 33881629329..09fa8920a07 100644
--- a/src/libsync/deque.rs
+++ b/src/libsync/deque.rs
@@ -553,14 +553,12 @@ mod tests {
         let threads = range(0, NTHREADS).map(|_| {
             let s = s.clone();
             Thread::start(proc() {
-                unsafe {
-                    loop {
-                        match s.steal() {
-                            Data(2) => { HITS.fetch_add(1, SeqCst); }
-                            Data(..) => fail!(),
-                            _ if DONE.load(SeqCst) => break,
-                            _ => {}
-                        }
+                loop {
+                    match s.steal() {
+                        Data(2) => { HITS.fetch_add(1, SeqCst); }
+                        Data(..) => fail!(),
+                        _ if DONE.load(SeqCst) => break,
+                        _ => {}
                     }
                 }
             })
@@ -572,7 +570,7 @@ mod tests {
             if rng.gen_range(0i, 3) == 2 {
                 match w.pop() {
                     None => {}
-                    Some(2) => unsafe { HITS.fetch_add(1, SeqCst); },
+                    Some(2) => { HITS.fetch_add(1, SeqCst); },
                     Some(_) => fail!(),
                 }
             } else {
@@ -581,22 +579,20 @@ mod tests {
             }
         }
 
-        unsafe {
-            while HITS.load(SeqCst) < AMT as uint {
-                match w.pop() {
-                    None => {}
-                    Some(2) => { HITS.fetch_add(1, SeqCst); },
-                    Some(_) => fail!(),
-                }
+        while HITS.load(SeqCst) < AMT as uint {
+            match w.pop() {
+                None => {}
+                Some(2) => { HITS.fetch_add(1, SeqCst); },
+                Some(_) => fail!(),
             }
-            DONE.store(true, SeqCst);
         }
+        DONE.store(true, SeqCst);
 
         for thread in threads.into_iter() {
             thread.join();
         }
 
-        assert_eq!(unsafe { HITS.load(SeqCst) }, expected as uint);
+        assert_eq!(HITS.load(SeqCst), expected as uint);
     }
 
     #[test]
@@ -655,7 +651,7 @@ mod tests {
             }
         }
 
-        unsafe { DONE.store(true, SeqCst); }
+        DONE.store(true, SeqCst);
 
         for thread in threads.into_iter() {
             thread.join();
diff --git a/src/libsync/mutex.rs b/src/libsync/mutex.rs
index 9861d27c8cd..796c62354c3 100644
--- a/src/libsync/mutex.rs
+++ b/src/libsync/mutex.rs
@@ -536,32 +536,32 @@ mod test {
 
     #[test]
     fn smoke_static() {
-        static m: StaticMutex = MUTEX_INIT;
+        static M: StaticMutex = MUTEX_INIT;
         unsafe {
-            drop(m.lock());
-            drop(m.lock());
-            m.destroy();
+            drop(M.lock());
+            drop(M.lock());
+            M.destroy();
         }
     }
 
     #[test]
     fn lots_and_lots() {
-        static m: StaticMutex = MUTEX_INIT;
+        static M: StaticMutex = MUTEX_INIT;
         static mut CNT: uint = 0;
-        static M: uint = 1000;
-        static N: uint = 3;
+        static J: uint = 1000;
+        static K: uint = 3;
 
         fn inc() {
-            for _ in range(0, M) {
+            for _ in range(0, J) {
                 unsafe {
-                    let _g = m.lock();
+                    let _g = M.lock();
                     CNT += 1;
                 }
             }
         }
 
         let (tx, rx) = channel();
-        for _ in range(0, N) {
+        for _ in range(0, K) {
             let tx2 = tx.clone();
             native::task::spawn(proc() { inc(); tx2.send(()); });
             let tx2 = tx.clone();
@@ -569,12 +569,12 @@ mod test {
         }
 
         drop(tx);
-        for _ in range(0, 2 * N) {
+        for _ in range(0, 2 * K) {
             rx.recv();
         }
-        assert_eq!(unsafe {CNT}, M * N * 2);
+        assert_eq!(unsafe {CNT}, J * K * 2);
         unsafe {
-            m.destroy();
+            M.destroy();
         }
     }
 
diff --git a/src/libsync/one.rs b/src/libsync/one.rs
index f0c72780be1..62b37660912 100644
--- a/src/libsync/one.rs
+++ b/src/libsync/one.rs
@@ -126,17 +126,17 @@ mod test {
 
     #[test]
     fn smoke_once() {
-        static o: Once = ONCE_INIT;
+        static O: Once = ONCE_INIT;
         let mut a = 0i;
-        o.doit(|| a += 1);
+        O.doit(|| a += 1);
         assert_eq!(a, 1);
-        o.doit(|| a += 1);
+        O.doit(|| a += 1);
         assert_eq!(a, 1);
     }
 
     #[test]
     fn stampede_once() {
-        static o: Once = ONCE_INIT;
+        static O: Once = ONCE_INIT;
         static mut run: bool = false;
 
         let (tx, rx) = channel();
@@ -145,7 +145,7 @@ mod test {
             spawn(proc() {
                 for _ in range(0u, 4) { task::deschedule() }
                 unsafe {
-                    o.doit(|| {
+                    O.doit(|| {
                         assert!(!run);
                         run = true;
                     });
@@ -156,7 +156,7 @@ mod test {
         }
 
         unsafe {
-            o.doit(|| {
+            O.doit(|| {
                 assert!(!run);
                 run = true;
             });
diff --git a/src/libterm/terminfo/parm.rs b/src/libterm/terminfo/parm.rs
index 736cacbdeb7..a1bce6e8e8b 100644
--- a/src/libterm/terminfo/parm.rs
+++ b/src/libterm/terminfo/parm.rs
@@ -575,7 +575,7 @@ fn format(val: Param, op: FormatOp, flags: Flags) -> Result<Vec<u8> ,String> {
 
 #[cfg(test)]
 mod test {
-    use super::{expand,Words,Variables,Number};
+    use super::{expand,Param,Words,Variables,Number};
     use std::result::Ok;
 
     #[test]
@@ -605,40 +605,39 @@ mod test {
     fn test_param_stack_failure_conditions() {
         let mut varstruct = Variables::new();
         let vars = &mut varstruct;
+        fn get_res(fmt: &str, cap: &str, params: &[Param], vars: &mut Variables) ->
+            Result<Vec<u8>, String>
+        {
+            let mut u8v: Vec<_> = fmt.bytes().collect();
+            u8v.extend(cap.as_bytes().iter().map(|&b| b));
+            expand(u8v.as_slice(), params, vars)
+        }
+
         let caps = ["%d", "%c", "%s", "%Pa", "%l", "%!", "%~"];
-        for cap in caps.iter() {
-            let res = expand(cap.as_bytes(), [], vars);
+        for &cap in caps.iter() {
+            let res = get_res("", cap, [], vars);
             assert!(res.is_err(),
-                    "Op {} succeeded incorrectly with 0 stack entries", *cap);
-            let p = if *cap == "%s" || *cap == "%l" {
+                    "Op {} succeeded incorrectly with 0 stack entries", cap);
+            let p = if cap == "%s" || cap == "%l" {
                 Words("foo".to_string())
             } else {
                 Number(97)
             };
-            let res = expand("%p1".bytes().collect::<Vec<_>>()
-                             .append(cap.as_bytes()).as_slice(),
-                             [p],
-                             vars);
+            let res = get_res("%p1", cap, [p], vars);
             assert!(res.is_ok(),
-                    "Op {} failed with 1 stack entry: {}", *cap, res.unwrap_err());
+                    "Op {} failed with 1 stack entry: {}", cap, res.unwrap_err());
         }
         let caps = ["%+", "%-", "%*", "%/", "%m", "%&", "%|", "%A", "%O"];
-        for cap in caps.iter() {
+        for &cap in caps.iter() {
             let res = expand(cap.as_bytes(), [], vars);
             assert!(res.is_err(),
-                    "Binop {} succeeded incorrectly with 0 stack entries", *cap);
-            let res = expand("%{1}".bytes().collect::<Vec<_>>()
-                             .append(cap.as_bytes()).as_slice(),
-                              [],
-                              vars);
+                    "Binop {} succeeded incorrectly with 0 stack entries", cap);
+            let res = get_res("%{1}", cap, [], vars);
             assert!(res.is_err(),
-                    "Binop {} succeeded incorrectly with 1 stack entry", *cap);
-            let res = expand("%{1}%{2}".bytes().collect::<Vec<_>>()
-                             .append(cap.as_bytes()).as_slice(),
-                             [],
-                             vars);
+                    "Binop {} succeeded incorrectly with 1 stack entry", cap);
+            let res = get_res("%{1}%{2}", cap, [], vars);
             assert!(res.is_ok(),
-                    "Binop {} failed with 2 stack entries: {}", *cap, res.unwrap_err());
+                    "Binop {} failed with 2 stack entries: {}", cap, res.unwrap_err());
         }
     }