auto merge of #13162 : alexcrichton/rust/attr-syntax, r=brson

This is the rebasing of #13068 with a fix for #13067 as the first commit.

61 files changed, 89 insertions, 89 deletions

diff --git a/src/libstd/cleanup.rs b/src/libstd/cleanup.rs
index 243f7b2055f..2e51931f15a 100644
--- a/src/libstd/cleanup.rs
+++ b/src/libstd/cleanup.rs
@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#[doc(hidden)];
+#![doc(hidden)]
 
 use ptr;
 use raw;
diff --git a/src/libstd/cmp.rs b/src/libstd/cmp.rs
index e956a1cdf1d..a8d5aa6e38e 100644
--- a/src/libstd/cmp.rs
+++ b/src/libstd/cmp.rs
@@ -20,7 +20,7 @@ and `Eq` to overload the `==` and `!=` operators.
 
 */
 
-#[allow(missing_doc)];
+#![allow(missing_doc)]
 
 /**
 * Trait for values that can be compared for equality and inequality.
diff --git a/src/libstd/comm/mod.rs b/src/libstd/comm/mod.rs
index 94e3d5ce2d3..ef8894a258c 100644
--- a/src/libstd/comm/mod.rs
+++ b/src/libstd/comm/mod.rs
@@ -252,7 +252,7 @@ use sync::arc::UnsafeArc;
 pub use comm::select::{Select, Handle};
 
 macro_rules! test (
-    { fn $name:ident() $b:block $($a:attr)*} => (
+    { fn $name:ident() $b:block $(#[$a:meta])*} => (
         mod $name {
             #[allow(unused_imports)];
 
@@ -265,8 +265,8 @@ macro_rules! test (
 
             fn f() $b
 
-            $($a)* #[test] fn uv() { f() }
-            $($a)* #[test] fn native() {
+            $(#[$a])* #[test] fn uv() { f() }
+            $(#[$a])* #[test] fn native() {
                 use native;
                 let (tx, rx) = channel();
                 native::task::spawn(proc() { tx.send(f()) });
diff --git a/src/libstd/comm/select.rs b/src/libstd/comm/select.rs
index 1b2e79e02b4..23bbb5a5611 100644
--- a/src/libstd/comm/select.rs
+++ b/src/libstd/comm/select.rs
@@ -43,7 +43,7 @@
 //! }
 //! ```
 
-#[allow(dead_code)];
+#![allow(dead_code)]
 
 use cast;
 use cell::Cell;
diff --git a/src/libstd/fmt/rt.rs b/src/libstd/fmt/rt.rs
index 89895f30585..2a2515754b4 100644
--- a/src/libstd/fmt/rt.rs
+++ b/src/libstd/fmt/rt.rs
@@ -14,8 +14,8 @@
 //! These definitions are similar to their `ct` equivalents, but differ in that
 //! these can be statically allocated and are slightly optimized for the runtime
 
-#[allow(missing_doc)];
-#[doc(hidden)];
+#![allow(missing_doc)]
+#![doc(hidden)]
 
 use fmt::parse;
 use option::Option;
diff --git a/src/libstd/gc.rs b/src/libstd/gc.rs
index 7fb23d77f3c..06a864f9a10 100644
--- a/src/libstd/gc.rs
+++ b/src/libstd/gc.rs
@@ -16,7 +16,7 @@ collector is task-local so `Gc<T>` is not sendable.
 
 */
 
-#[allow(experimental)];
+#![allow(experimental)]
 
 use kinds::marker;
 use clone::Clone;
diff --git a/src/libstd/hash/mod.rs b/src/libstd/hash/mod.rs
index dc7d5c5b9c7..5e63f59f761 100644
--- a/src/libstd/hash/mod.rs
+++ b/src/libstd/hash/mod.rs
@@ -61,7 +61,7 @@
  * ```
  */
 
-#[allow(unused_must_use)];
+#![allow(unused_must_use)]
 
 use container::Container;
 use io::Writer;
diff --git a/src/libstd/intrinsics.rs b/src/libstd/intrinsics.rs
index 1da9a3a7103..988140d38d4 100644
--- a/src/libstd/intrinsics.rs
+++ b/src/libstd/intrinsics.rs
@@ -41,7 +41,7 @@ A quick refresher on memory ordering:
 
 */
 
-#[allow(missing_doc)];
+#![allow(missing_doc)]
 
 // This is needed to prevent duplicate lang item definitions.
 #[cfg(test)]
diff --git a/src/libstd/io/extensions.rs b/src/libstd/io/extensions.rs
index b9e933d0b14..0275d9ba8d9 100644
--- a/src/libstd/io/extensions.rs
+++ b/src/libstd/io/extensions.rs
@@ -10,7 +10,7 @@
 
 //! Utility mixins that apply to all Readers and Writers
 
-#[allow(missing_doc)];
+#![allow(missing_doc)]
 
 // FIXME: Not sure how this should be structured
 // FIXME: Iteration should probably be considered separately
diff --git a/src/libstd/io/mod.rs b/src/libstd/io/mod.rs
index 3e193f246a8..c1833e6b116 100644
--- a/src/libstd/io/mod.rs
+++ b/src/libstd/io/mod.rs
@@ -208,7 +208,7 @@ responding to errors that may occur while attempting to read the numbers.
 
 */
 
-#[deny(unused_must_use)];
+#![deny(unused_must_use)]
 
 use cast;
 use char::Char;
diff --git a/src/libstd/io/net/addrinfo.rs b/src/libstd/io/net/addrinfo.rs
index 6e0b766a587..f16db6e76c9 100644
--- a/src/libstd/io/net/addrinfo.rs
+++ b/src/libstd/io/net/addrinfo.rs
@@ -17,7 +17,7 @@ getaddrinfo()
 
 */
 
-#[allow(missing_doc)];
+#![allow(missing_doc)]
 
 use io::IoResult;
 use io::net::ip::{SocketAddr, IpAddr};
diff --git a/src/libstd/io/net/ip.rs b/src/libstd/io/net/ip.rs
index fef4dd380e8..8cb205ab67e 100644
--- a/src/libstd/io/net/ip.rs
+++ b/src/libstd/io/net/ip.rs
@@ -13,7 +13,7 @@
 //! This module contains functions useful for parsing, formatting, and
 //! manipulating IP addresses.
 
-#[allow(missing_doc)];
+#![allow(missing_doc)]
 
 use container::Container;
 use fmt;
diff --git a/src/libstd/io/net/tcp.rs b/src/libstd/io/net/tcp.rs
index e343fdcd325..61943eb3d6f 100644
--- a/src/libstd/io/net/tcp.rs
+++ b/src/libstd/io/net/tcp.rs
@@ -17,7 +17,7 @@
 //! A TCP connection implements the `Reader` and `Writer` traits, while the TCP
 //! listener (socket server) implements the `Listener` and `Acceptor` traits.
 
-#[deny(missing_doc)];
+#![deny(missing_doc)]
 
 use clone::Clone;
 use io::IoResult;
diff --git a/src/libstd/io/net/unix.rs b/src/libstd/io/net/unix.rs
index 1a020f9a820..73bb6b56298 100644
--- a/src/libstd/io/net/unix.rs
+++ b/src/libstd/io/net/unix.rs
@@ -22,7 +22,7 @@ instances as clients.
 
 */
 
-#[allow(missing_doc)];
+#![allow(missing_doc)]
 
 use prelude::*;
 
diff --git a/src/libstd/io/pipe.rs b/src/libstd/io/pipe.rs
index fbf79b19445..43b53ca95dc 100644
--- a/src/libstd/io/pipe.rs
+++ b/src/libstd/io/pipe.rs
@@ -13,7 +13,7 @@
 //! Currently these aren't particularly useful, there only exists bindings
 //! enough so that pipes can be created to child processes.
 
-#[allow(missing_doc)];
+#![allow(missing_doc)]
 
 use prelude::*;
 use io::IoResult;
diff --git a/src/libstd/io/process.rs b/src/libstd/io/process.rs
index 4f4d2d793f6..0ce35018a9c 100644
--- a/src/libstd/io/process.rs
+++ b/src/libstd/io/process.rs
@@ -10,7 +10,7 @@
 
 //! Bindings for executing child processes
 
-#[deny(missing_doc)];
+#![deny(missing_doc)]
 
 use prelude::*;
 
diff --git a/src/libstd/io/test.rs b/src/libstd/io/test.rs
index 9eeaf4635a4..d5bd7ad24f8 100644
--- a/src/libstd/io/test.rs
+++ b/src/libstd/io/test.rs
@@ -10,7 +10,7 @@
 
 /*! Various utility functions useful for writing I/O tests */
 
-#[macro_escape];
+#![macro_escape]
 
 use libc;
 use os;
@@ -19,7 +19,7 @@ use std::io::net::ip::*;
 use sync::atomics::{AtomicUint, INIT_ATOMIC_UINT, Relaxed};
 
 macro_rules! iotest (
-    { fn $name:ident() $b:block $($a:attr)* } => (
+    { fn $name:ident() $b:block $(#[$a:meta])* } => (
         mod $name {
             #[allow(unused_imports)];
 
@@ -43,8 +43,8 @@ macro_rules! iotest (
 
             fn f() $b
 
-            $($a)* #[test] fn green() { f() }
-            $($a)* #[test] fn native() {
+            $(#[$a])* #[test] fn green() { f() }
+            $(#[$a])* #[test] fn native() {
                 use native;
                 let (tx, rx) = channel();
                 native::task::spawn(proc() { tx.send(f()) });
diff --git a/src/libstd/lib.rs b/src/libstd/lib.rs
index 9e13d70b0ce..c130b89b6d4 100644
--- a/src/libstd/lib.rs
+++ b/src/libstd/lib.rs
@@ -43,21 +43,21 @@
 //!
 //!     use std::prelude::*;
 
-#[crate_id = "std#0.10-pre"];
-#[comment = "The Rust standard library"];
-#[license = "MIT/ASL2"];
-#[crate_type = "rlib"];
-#[crate_type = "dylib"];
-#[doc(html_logo_url = "http://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png",
-      html_favicon_url = "http://www.rust-lang.org/favicon.ico",
-      html_root_url = "http://static.rust-lang.org/doc/master")];
-#[feature(macro_rules, globs, asm, managed_boxes, thread_local, link_args,
-          simd, linkage, default_type_params, phase)];
+#![crate_id = "std#0.10-pre"]
+#![comment = "The Rust standard library"]
+#![license = "MIT/ASL2"]
+#![crate_type = "rlib"]
+#![crate_type = "dylib"]
+#![doc(html_logo_url = "http://www.rust-lang.org/logos/rust-logo-128x128-blk-v2.png",
+       html_favicon_url = "http://www.rust-lang.org/favicon.ico",
+       html_root_url = "http://static.rust-lang.org/doc/master")]
+#![feature(macro_rules, globs, asm, managed_boxes, thread_local, link_args,
+           simd, linkage, default_type_params, phase)]
 
 // Don't link to std. We are std.
-#[no_std];
+#![no_std]
 
-#[deny(missing_doc)];
+#![deny(missing_doc)]
 
 // When testing libstd, bring in libuv as the I/O backend so tests can print
 // things and all of the std::io tests have an I/O interface to run on top
diff --git a/src/libstd/libc.rs b/src/libstd/libc.rs
index 83a95952e02..a310b95a213 100644
--- a/src/libstd/libc.rs
+++ b/src/libstd/libc.rs
@@ -62,10 +62,10 @@
 * dissolved.
 */
 
-#[allow(non_camel_case_types)];
-#[allow(non_uppercase_statics)];
-#[allow(missing_doc)];
-#[allow(uppercase_variables)];
+#![allow(non_camel_case_types)]
+#![allow(non_uppercase_statics)]
+#![allow(missing_doc)]
+#![allow(uppercase_variables)]
 
 // Initial glob-exports mean that all the contents of all the modules
 // wind up exported, if you're interested in writing platform-specific code.
diff --git a/src/libstd/macros.rs b/src/libstd/macros.rs
index d183fae3ac6..9b1c5a406cf 100644
--- a/src/libstd/macros.rs
+++ b/src/libstd/macros.rs
@@ -14,7 +14,7 @@
 //! library. Each macro is available for use when linking against the standard
 //! library.
 
-#[macro_escape];
+#![macro_escape]
 
 /// The entry point for failure of rust tasks.
 ///
diff --git a/src/libstd/mem.rs b/src/libstd/mem.rs
index 1f0a3b5b0bd..0e709445770 100644
--- a/src/libstd/mem.rs
+++ b/src/libstd/mem.rs
@@ -13,7 +13,7 @@
 //! This module contains functions for querying the size and alignment of
 //! types, initializing and manipulating memory.
 
-#[allow(missing_doc)]; // FIXME
+#![allow(missing_doc)] // FIXME
 
 use cast;
 use ptr;
diff --git a/src/libstd/num/cmath.rs b/src/libstd/num/cmath.rs
index 13c4a812ec4..32864f14c96 100644
--- a/src/libstd/num/cmath.rs
+++ b/src/libstd/num/cmath.rs
@@ -8,8 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#[allow(missing_doc)];
-#[allow(dead_code)];
+#![allow(missing_doc)]
+#![allow(dead_code)]
 
 //! Bindings for the C math library (for basic mathematic functions)
 
diff --git a/src/libstd/num/f32.rs b/src/libstd/num/f32.rs
index 323f24a52c3..99484f41de1 100644
--- a/src/libstd/num/f32.rs
+++ b/src/libstd/num/f32.rs
@@ -10,7 +10,7 @@
 
 //! Operations and constants for 32-bits floats (`f32` type)
 
-#[allow(missing_doc)];
+#![allow(missing_doc)]
 
 use prelude::*;
 
diff --git a/src/libstd/num/f64.rs b/src/libstd/num/f64.rs
index fc8c5f47073..4029e111b08 100644
--- a/src/libstd/num/f64.rs
+++ b/src/libstd/num/f64.rs
@@ -10,7 +10,7 @@
 
 //! Operations and constants for 64-bits floats (`f64` type)
 
-#[allow(missing_doc)];
+#![allow(missing_doc)]
 
 use prelude::*;
 
diff --git a/src/libstd/num/float_macros.rs b/src/libstd/num/float_macros.rs
index 7c93602af11..3e403219a4f 100644
--- a/src/libstd/num/float_macros.rs
+++ b/src/libstd/num/float_macros.rs
@@ -8,8 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#[macro_escape];
-#[doc(hidden)];
+#![macro_escape]
+#![doc(hidden)]
 
 macro_rules! assert_approx_eq(
     ($a:expr, $b:expr) => ({
diff --git a/src/libstd/num/i16.rs b/src/libstd/num/i16.rs
index 0ecb55e5106..42710a8b459 100644
--- a/src/libstd/num/i16.rs
+++ b/src/libstd/num/i16.rs
@@ -10,7 +10,7 @@
 
 //! Operations and constants for signed 16-bits integers (`i16` type)
 
-#[allow(non_uppercase_statics)];
+#![allow(non_uppercase_statics)]
 
 use prelude::*;
 
diff --git a/src/libstd/num/i32.rs b/src/libstd/num/i32.rs
index 0526f2c488b..69d4b0639f7 100644
--- a/src/libstd/num/i32.rs
+++ b/src/libstd/num/i32.rs
@@ -10,7 +10,7 @@
 
 //! Operations and constants for signed 32-bits integers (`i32` type)
 
-#[allow(non_uppercase_statics)];
+#![allow(non_uppercase_statics)]
 
 use prelude::*;
 
diff --git a/src/libstd/num/i64.rs b/src/libstd/num/i64.rs
index 0c1c01dbf4a..1f7066c25db 100644
--- a/src/libstd/num/i64.rs
+++ b/src/libstd/num/i64.rs
@@ -10,7 +10,7 @@
 
 //! Operations and constants for signed 64-bits integers (`i64` type)
 
-#[allow(non_uppercase_statics)];
+#![allow(non_uppercase_statics)]
 
 use prelude::*;
 
diff --git a/src/libstd/num/i8.rs b/src/libstd/num/i8.rs
index 881cc46201e..061ffddf231 100644
--- a/src/libstd/num/i8.rs
+++ b/src/libstd/num/i8.rs
@@ -10,7 +10,7 @@
 
 //! Operations and constants for signed 8-bits integers (`i8` type)
 
-#[allow(non_uppercase_statics)];
+#![allow(non_uppercase_statics)]
 
 use prelude::*;
 
diff --git a/src/libstd/num/int.rs b/src/libstd/num/int.rs
index 83c9e8ea855..66b204ee8bd 100644
--- a/src/libstd/num/int.rs
+++ b/src/libstd/num/int.rs
@@ -10,7 +10,7 @@
 
 //! Operations and constants for architecture-sized signed integers (`int` type)
 
-#[allow(non_uppercase_statics)];
+#![allow(non_uppercase_statics)]
 
 use prelude::*;
 
diff --git a/src/libstd/num/int_macros.rs b/src/libstd/num/int_macros.rs
index ea62a3ec374..1d2c38f22bb 100644
--- a/src/libstd/num/int_macros.rs
+++ b/src/libstd/num/int_macros.rs
@@ -8,8 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#[macro_escape];
-#[doc(hidden)];
+#![macro_escape]
+#![doc(hidden)]
 
 macro_rules! int_module (($T:ty, $bits:expr) => (
 
diff --git a/src/libstd/num/mod.rs b/src/libstd/num/mod.rs
index d09cf28357b..feff0e7e6c0 100644
--- a/src/libstd/num/mod.rs
+++ b/src/libstd/num/mod.rs
@@ -13,7 +13,7 @@
 //! These are implemented for the primitive numeric types in `std::{u8, u16,
 //! u32, u64, uint, i8, i16, i32, i64, int, f32, f64, float}`.
 
-#[allow(missing_doc)];
+#![allow(missing_doc)]
 
 use clone::Clone;
 use cmp::{Eq, Ord};
diff --git a/src/libstd/num/strconv.rs b/src/libstd/num/strconv.rs
index 9f9a9ec8e2e..dc49da415a4 100644
--- a/src/libstd/num/strconv.rs
+++ b/src/libstd/num/strconv.rs
@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#[allow(missing_doc)];
+#![allow(missing_doc)]
 
 use clone::Clone;
 use container::Container;
diff --git a/src/libstd/num/u16.rs b/src/libstd/num/u16.rs
index d1de1ff0a72..ca473e9517e 100644
--- a/src/libstd/num/u16.rs
+++ b/src/libstd/num/u16.rs
@@ -10,7 +10,7 @@
 
 //! Operations and constants for unsigned 16-bits integers (`u16` type)
 
-#[allow(non_uppercase_statics)];
+#![allow(non_uppercase_statics)]
 
 use prelude::*;
 
diff --git a/src/libstd/num/u32.rs b/src/libstd/num/u32.rs
index 1caec678025..2a0b9aac667 100644
--- a/src/libstd/num/u32.rs
+++ b/src/libstd/num/u32.rs
@@ -10,7 +10,7 @@
 
 //! Operations and constants for unsigned 32-bits integers (`u32` type)
 
-#[allow(non_uppercase_statics)];
+#![allow(non_uppercase_statics)]
 
 use prelude::*;
 
diff --git a/src/libstd/num/u64.rs b/src/libstd/num/u64.rs
index ab495834eaa..2cfc5da95e8 100644
--- a/src/libstd/num/u64.rs
+++ b/src/libstd/num/u64.rs
@@ -10,7 +10,7 @@
 
 //! Operations and constants for unsigned 64-bits integer (`u64` type)
 
-#[allow(non_uppercase_statics)];
+#![allow(non_uppercase_statics)]
 
 use prelude::*;
 
diff --git a/src/libstd/num/u8.rs b/src/libstd/num/u8.rs
index a0ef574f6cf..30ed13a5952 100644
--- a/src/libstd/num/u8.rs
+++ b/src/libstd/num/u8.rs
@@ -10,7 +10,7 @@
 
 //! Operations and constants for unsigned 8-bits integers (`u8` type)
 
-#[allow(non_uppercase_statics)];
+#![allow(non_uppercase_statics)]
 
 use prelude::*;
 
diff --git a/src/libstd/num/uint.rs b/src/libstd/num/uint.rs
index 95d4a3a50be..6751fdb5d25 100644
--- a/src/libstd/num/uint.rs
+++ b/src/libstd/num/uint.rs
@@ -10,7 +10,7 @@
 
 //! Operations and constants for architecture-sized unsigned integers (`uint` type)
 
-#[allow(non_uppercase_statics)];
+#![allow(non_uppercase_statics)]
 
 use prelude::*;
 
diff --git a/src/libstd/num/uint_macros.rs b/src/libstd/num/uint_macros.rs
index 719afeb7878..ece30e72e06 100644
--- a/src/libstd/num/uint_macros.rs
+++ b/src/libstd/num/uint_macros.rs
@@ -8,8 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#[macro_escape];
-#[doc(hidden)];
+#![macro_escape]
+#![doc(hidden)]
 
 macro_rules! uint_module (($T:ty, $T_SIGNED:ty, $bits:expr) => (
 
diff --git a/src/libstd/os.rs b/src/libstd/os.rs
index eeebede6c58..b84ba6a501c 100644
--- a/src/libstd/os.rs
+++ b/src/libstd/os.rs
@@ -26,7 +26,7 @@
  * to write OS-ignorant code by default.
  */
 
-#[allow(missing_doc)];
+#![allow(missing_doc)]
 
 #[cfg(target_os = "macos")]
 #[cfg(windows)]
diff --git a/src/libstd/path/windows.rs b/src/libstd/path/windows.rs
index d488997b0c2..a641787dfd1 100644
--- a/src/libstd/path/windows.rs
+++ b/src/libstd/path/windows.rs
@@ -637,7 +637,7 @@ impl Path {
     /// See str_components() for details.
     pub fn components<'a>(&'a self) -> Components<'a> {
         fn convert<'a>(x: Option<&'a str>) -> &'a [u8] {
-            #[inline];
+            #![inline]
             x.unwrap().as_bytes()
         }
         self.str_components().map(convert)
@@ -647,7 +647,7 @@ impl Path {
     /// See str_components() for details.
     pub fn rev_components<'a>(&'a self) -> RevComponents<'a> {
         fn convert<'a>(x: Option<&'a str>) -> &'a [u8] {
-            #[inline];
+            #![inline]
             x.unwrap().as_bytes()
         }
         self.rev_str_components().map(convert)
diff --git a/src/libstd/raw.rs b/src/libstd/raw.rs
index 94ad268f512..d776b05bcd9 100644
--- a/src/libstd/raw.rs
+++ b/src/libstd/raw.rs
@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#[allow(missing_doc)];
+#![allow(missing_doc)]
 
 //! Contains struct definitions for the layout of compiler built-in types.
 //!
diff --git a/src/libstd/reflect.rs b/src/libstd/reflect.rs
index a9e70bd3c63..183318cbfdb 100644
--- a/src/libstd/reflect.rs
+++ b/src/libstd/reflect.rs
@@ -14,7 +14,7 @@ Runtime type reflection
 
 */
 
-#[allow(missing_doc)];
+#![allow(missing_doc)]
 
 use intrinsics::{Disr, Opaque, TyDesc, TyVisitor};
 use mem;
diff --git a/src/libstd/repr.rs b/src/libstd/repr.rs
index 675250a2710..e15ca3c0320 100644
--- a/src/libstd/repr.rs
+++ b/src/libstd/repr.rs
@@ -14,7 +14,7 @@ More runtime type reflection
 
 */
 
-#[allow(missing_doc)];
+#![allow(missing_doc)]
 
 use cast::transmute;
 use char;
diff --git a/src/libstd/rt/backtrace.rs b/src/libstd/rt/backtrace.rs
index 7ae2521c423..96f95622b92 100644
--- a/src/libstd/rt/backtrace.rs
+++ b/src/libstd/rt/backtrace.rs
@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#[allow(non_camel_case_types)];
+#![allow(non_camel_case_types)]
 
 use char::Char;
 use container::Container;
diff --git a/src/libstd/rt/bookkeeping.rs b/src/libstd/rt/bookkeeping.rs
index 932cd7af033..9e772d8ad23 100644
--- a/src/libstd/rt/bookkeeping.rs
+++ b/src/libstd/rt/bookkeeping.rs
@@ -18,8 +18,8 @@
 //! each respective runtime to make sure that they call increment() and
 //! decrement() manually.
 
-#[experimental]; // this is a massive code smell
-#[doc(hidden)];
+#![experimental] // this is a massive code smell
+#![doc(hidden)]
 
 use sync::atomics;
 use unstable::mutex::{StaticNativeMutex, NATIVE_MUTEX_INIT};
diff --git a/src/libstd/rt/libunwind.rs b/src/libstd/rt/libunwind.rs
index fabfa2c8a7a..e9a925fb897 100644
--- a/src/libstd/rt/libunwind.rs
+++ b/src/libstd/rt/libunwind.rs
@@ -10,8 +10,8 @@
 
 //! Unwind library interface
 
-#[allow(non_camel_case_types)];
-#[allow(dead_code)]; // these are just bindings
+#![allow(non_camel_case_types)]
+#![allow(dead_code)] // these are just bindings
 
 use libc;
 
diff --git a/src/libstd/rt/local_ptr.rs b/src/libstd/rt/local_ptr.rs
index 898004c665d..30068712977 100644
--- a/src/libstd/rt/local_ptr.rs
+++ b/src/libstd/rt/local_ptr.rs
@@ -15,7 +15,7 @@
 //! XXX: Add runtime checks for usage of inconsistent pointer types.
 //! and for overwriting an existing pointer.
 
-#[allow(dead_code)];
+#![allow(dead_code)]
 
 use cast;
 use ops::Drop;
diff --git a/src/libstd/rt/macros.rs b/src/libstd/rt/macros.rs
index 3ef57710344..74675c85b96 100644
--- a/src/libstd/rt/macros.rs
+++ b/src/libstd/rt/macros.rs
@@ -13,7 +13,7 @@
 //! These macros call functions which are only accessible in the `rt` module, so
 //! they aren't defined anywhere outside of the `rt` module.
 
-#[macro_escape];
+#![macro_escape]
 
 macro_rules! rterrln (
     ($($arg:tt)*) => ( {
diff --git a/src/libstd/rt/mod.rs b/src/libstd/rt/mod.rs
index 28f11f44054..5e2f8efd2e3 100644
--- a/src/libstd/rt/mod.rs
+++ b/src/libstd/rt/mod.rs
@@ -52,7 +52,7 @@ Several modules in `core` are clients of `rt`:
 */
 
 // FIXME: this should not be here.
-#[allow(missing_doc)];
+#![allow(missing_doc)]
 
 use any::Any;
 use kinds::Send;
diff --git a/src/libstd/rt/thread.rs b/src/libstd/rt/thread.rs
index 7c4bd895469..1802016e3b3 100644
--- a/src/libstd/rt/thread.rs
+++ b/src/libstd/rt/thread.rs
@@ -14,7 +14,7 @@
 //! These functions operate outside of the rust runtime, creating threads
 //! which are not used for scheduling in any way.
 
-#[allow(non_camel_case_types)];
+#![allow(non_camel_case_types)]
 
 use cast;
 use kinds::Send;
diff --git a/src/libstd/rt/thread_local_storage.rs b/src/libstd/rt/thread_local_storage.rs
index 40d9523cf3a..2f567e91b4c 100644
--- a/src/libstd/rt/thread_local_storage.rs
+++ b/src/libstd/rt/thread_local_storage.rs
@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#[allow(dead_code)];
+#![allow(dead_code)]
 
 #[cfg(unix)]
 use libc::c_int;
diff --git a/src/libstd/slice.rs b/src/libstd/slice.rs
index 8602c653523..b5055dfe8b3 100644
--- a/src/libstd/slice.rs
+++ b/src/libstd/slice.rs
@@ -99,7 +99,7 @@ There are a number of free functions that create or take vectors, for example:
 
 */
 
-#[warn(non_camel_case_types)];
+#![warn(non_camel_case_types)]
 
 use cast;
 use cast::transmute;
diff --git a/src/libstd/str.rs b/src/libstd/str.rs
index fac4202217f..0e640d3a662 100644
--- a/src/libstd/str.rs
+++ b/src/libstd/str.rs
@@ -4008,7 +4008,7 @@ mod tests {
 
     #[test]
     fn test_add() {
-        #[allow(unnecessary_allocation)];
+        #![allow(unnecessary_allocation)]
         macro_rules! t (
             ($s1:expr, $s2:expr, $e:expr) => { {
                 let s1 = $s1;
diff --git a/src/libstd/sync/atomics.rs b/src/libstd/sync/atomics.rs
index bca7cf25944..6cc2f85bd95 100644
--- a/src/libstd/sync/atomics.rs
+++ b/src/libstd/sync/atomics.rs
@@ -105,7 +105,7 @@
 //! }
 //! ```
 
-#[allow(missing_doc)];
+#![allow(missing_doc)]
 
 use intrinsics;
 use cast;
diff --git a/src/libstd/sync/mpmc_bounded_queue.rs b/src/libstd/sync/mpmc_bounded_queue.rs
index 95f592baff0..dfa962cdb80 100644
--- a/src/libstd/sync/mpmc_bounded_queue.rs
+++ b/src/libstd/sync/mpmc_bounded_queue.rs
@@ -25,7 +25,7 @@
  * policies, either expressed or implied, of Dmitry Vyukov.
  */
 
-#[allow(missing_doc, dead_code)];
+#![allow(missing_doc, dead_code)]
 
 // http://www.1024cores.net/home/lock-free-algorithms/queues/bounded-mpmc-queue
 
diff --git a/src/libstd/tuple.rs b/src/libstd/tuple.rs
index c4ce6b5ae66..732b006b245 100644
--- a/src/libstd/tuple.rs
+++ b/src/libstd/tuple.rs
@@ -10,7 +10,7 @@
 
 //! Operations on tuples
 
-#[allow(missing_doc)];
+#![allow(missing_doc)]
 
 use clone::Clone;
 #[cfg(not(test))] use cmp::*;
diff --git a/src/libstd/unicode.rs b/src/libstd/unicode.rs
index 645db8e040b..c98861a0fe7 100644
--- a/src/libstd/unicode.rs
+++ b/src/libstd/unicode.rs
@@ -10,8 +10,8 @@
 
 // The following code was generated by "src/etc/unicode.py"
 
-#[allow(missing_doc)];
-#[allow(non_uppercase_statics)];
+#![allow(missing_doc)]
+#![allow(non_uppercase_statics)]
 
 fn bsearch_range_table(c: char, r: &'static [(char,char)]) -> bool {
     use cmp::{Equal, Less, Greater};
diff --git a/src/libstd/unstable/mod.rs b/src/libstd/unstable/mod.rs
index 720bf011fa0..ddbf650e64a 100644
--- a/src/libstd/unstable/mod.rs
+++ b/src/libstd/unstable/mod.rs
@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#[doc(hidden)];
+#![doc(hidden)]
 
 use prelude::*;
 use libc::uintptr_t;
diff --git a/src/libstd/unstable/mutex.rs b/src/libstd/unstable/mutex.rs
index 6f5ef067e89..eda2df487aa 100644
--- a/src/libstd/unstable/mutex.rs
+++ b/src/libstd/unstable/mutex.rs
@@ -56,7 +56,7 @@
 //! } // `lock` is deallocated here
 //! ```
 
-#[allow(non_camel_case_types)];
+#![allow(non_camel_case_types)]
 
 use option::{Option, None, Some};
 use ops::Drop;
diff --git a/src/libstd/unstable/simd.rs b/src/libstd/unstable/simd.rs
index 1029e5fdbd3..01200833b19 100644
--- a/src/libstd/unstable/simd.rs
+++ b/src/libstd/unstable/simd.rs
@@ -10,7 +10,7 @@
 
 //! SIMD vectors
 
-#[allow(non_camel_case_types)];
+#![allow(non_camel_case_types)]
 
 #[experimental]
 #[simd]