auto merge of #13493 : Manishearth/rust/newattr-everywhere, r=alexcrichton

See #13478

src/test/compile-fail/dead-code-ret.rs

@@ -10,7 +10,7 @@
 
 // error-pattern: unreachable statement
 
-#[deny(unreachable_code)];
+#![deny(unreachable_code)]
 
 fn main() {
     return;

src/test/compile-fail/issue-10656.rs

@@ -10,5 +10,5 @@
 
 // error-pattern: missing documentation for crate
 
-#[deny(missing_doc)];
-#[crate_type="lib"];
+#![deny(missing_doc)]
+#![crate_type="lib"]

src/test/compile-fail/issue-12133-3.rs

@@ -14,7 +14,7 @@
 
 // error-pattern: dylib output requested, but some depenencies could not
 
-#[crate_type = "dylib"];
+#![crate_type = "dylib"]
 
 extern crate a = "issue-12133-rlib";
 extern crate b = "issue-12133-dylib";

src/test/compile-fail/issue-6596.rs

@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#[feature(macro_rules)];
+#![feature(macro_rules)]
 
 // error-pattern: unknown macro variable `nonexistent`
 

src/test/compile-fail/issue-897.rs

@@ -10,7 +10,7 @@
 
 // error-pattern: unreachable statement
 
-#[deny(unreachable_code)];
+#![deny(unreachable_code)]
 
 fn f() -> ! {
     return fail!();

src/test/compile-fail/multiple-macro-registrars.rs

@@ -10,7 +10,7 @@
 
 // error-pattern: multiple macro registration functions found
 
-#[feature(macro_registrar)];
+#![feature(macro_registrar)]
 
 // the registration function isn't typechecked yet
 #[macro_registrar]

src/test/compile-fail/nolink-with-link-args.rs

@@ -14,7 +14,7 @@
 So we try to compile with junk link_args and make sure they are visible in
 the compiler output. */
 
-#[feature(link_args)];
+#![feature(link_args)]
 
 #[link_args = "aFdEfSeVEEE"]
 extern {}

src/test/compile-fail/required-lang-item.rs

@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#[no_std];
+#![no_std]
 
 // error-pattern:requires `start` lang_item
 

src/test/compile-fail/tag-that-dare-not-speak-its-name.rs

@@ -11,7 +11,7 @@
 // error-pattern:mismatched types: expected `char` but found
 // Issue #876
 
-#[no_implicit_prelude];
+#![no_implicit_prelude]
 use std::vec::Vec;
 
 fn last<T>(v: Vec<&T> ) -> std::option::Option<T> {