Require feature attributes, and add them where necessary

src/compiletest/compiletest.rs

@@ -20,6 +20,7 @@
 #![feature(std_misc)]
 #![feature(test)]
 #![feature(path_ext)]
+#![feature(str_char)]
 
 #![deny(warnings)]
 

src/libcollections/lib.rs

@@ -36,7 +36,7 @@
 #![feature(unsafe_no_drop_flag)]
 #![feature(step_by)]
 #![feature(str_char)]
-#![cfg_attr(test, feature(rand, rustc_private, test))]
+#![cfg_attr(test, feature(rand, rustc_private, test, hash, collections))]
 #![cfg_attr(test, allow(deprecated))] // rand
 
 #![feature(no_std)]

src/libcollectionstest/lib.rs

@@ -20,6 +20,7 @@
 #![feature(unboxed_closures)]
 #![feature(unicode)]
 #![feature(unsafe_destructor)]
+#![cfg_attr(test, feature(str_char))]
 
 #[macro_use] extern crate log;
 

src/libcoretest/lib.rs

@@ -24,6 +24,8 @@
 #![feature(io)]
 #![feature(collections)]
 #![feature(debug_builders)]
+#![feature(unique)]
+#![feature(step_by)]
 #![allow(deprecated)] // rand
 
 extern crate core;

src/libflate/lib.rs

@@ -28,6 +28,7 @@
 #![feature(libc)]
 #![feature(staged_api)]
 #![feature(unique)]
+#![cfg_attr(test, feature(rustc_private, rand, collections))]
 
 #[cfg(test)] #[macro_use] extern crate log;
 

src/librand/lib.rs

@@ -34,7 +34,7 @@
 #![deprecated(reason = "use the crates.io `rand` library instead",
               since = "1.0.0-alpha")]
 
-#![cfg_attr(test, feature(test, rand))]
+#![cfg_attr(test, feature(test, rand, rustc_private))]
 
 #![allow(deprecated)]
 

src/librustc/lint/context.rs

@@ -212,7 +212,7 @@ impl LintStore {
     fn maybe_stage_features(&mut self, sess: &Session) {
         let lvl = match sess.opts.unstable_features {
             UnstableFeatures::Default => return,
-            UnstableFeatures::Disallow => Warn,
+            UnstableFeatures::Disallow => Forbid,
             UnstableFeatures::Cheat => Allow
         };
         match self.by_name.get("unstable_features") {

src/librustc/middle/stability.rs

@@ -26,7 +26,7 @@ use syntax::ast::{Item, Generics, StructField};
 use syntax::ast_util::is_local;
 use syntax::attr::{Stability, AttrMetaMethods};
 use syntax::visit::{FnKind, Visitor};
-use syntax::feature_gate::emit_feature_warn;
+use syntax::feature_gate::emit_feature_err;
 use util::nodemap::{NodeMap, DefIdMap, FnvHashSet, FnvHashMap};
 use util::ppaux::Repr;
 
@@ -237,7 +237,7 @@ impl<'a, 'tcx> Checker<'a, 'tcx> {
                         None => format!("use of unstable library feature '{}'", &feature)
                     };
 
-                    emit_feature_warn(&self.tcx.sess.parse_sess.span_diagnostic,
+                    emit_feature_err(&self.tcx.sess.parse_sess.span_diagnostic,
                                       &feature, span, &msg);
                 }
             }

src/librustc_back/lib.rs

@@ -49,6 +49,7 @@
 #![feature(std_misc)]
 #![feature(path_relative_from)]
 #![feature(step_by)]
+#![cfg_attr(test, feature(test, rand))]
 
 extern crate syntax;
 extern crate serialize;

src/librustc_bitflags/lib.rs

@@ -18,6 +18,7 @@
 #![feature(no_std)]
 #![no_std]
 #![unstable(feature = "rustc_private")]
+#![cfg_attr(test, feature(hash))]
 
 //! A typesafe bitmask flag generator.
 

src/libserialize/lib.rs

@@ -37,7 +37,7 @@ Core encoding and decoding interfaces.
 #![feature(std_misc)]
 #![feature(unicode)]
 #![feature(str_char)]
-#![cfg_attr(test, feature(test))]
+#![cfg_attr(test, feature(test, old_io))]
 
 // test harness access
 #[cfg(test)] extern crate test;

src/libstd/lib.rs

@@ -128,7 +128,7 @@
 #![feature(unique)]
 #![feature(allow_internal_unstable)]
 #![feature(str_char)]
-#![cfg_attr(test, feature(test, rustc_private))]
+#![cfg_attr(test, feature(test, rustc_private, std_misc))]
 
 // Don't link to std. We are std.
 #![feature(no_std)]

src/libtest/lib.rs

@@ -45,6 +45,7 @@
 #![feature(libc)]
 #![feature(set_stdio)]
 #![feature(os)]
+#![cfg_attr(test, feature(old_io))]
 
 extern crate getopts;
 extern crate serialize;

src/libunicode/char.rs

@@ -653,6 +653,7 @@ impl char {
     /// In both of these examples, 'ß' takes two bytes to encode.
     ///
     /// ```
+    /// # #![feature(unicode)]
     /// let mut b = [0; 2];
     ///
     /// let result = 'ß'.encode_utf8(&mut b);
@@ -663,6 +664,7 @@ impl char {
     /// A buffer that's too small:
     ///
     /// ```
+    /// # #![feature(unicode)]
     /// let mut b = [0; 1];
     ///
     /// let result = 'ß'.encode_utf8(&mut b);
@@ -685,6 +687,7 @@ impl char {
     /// In both of these examples, 'ß' takes one `u16` to encode.
     ///
     /// ```
+    /// # #![feature(unicode)]
     /// let mut b = [0; 1];
     ///
     /// let result = 'ß'.encode_utf16(&mut b);
@@ -695,6 +698,7 @@ impl char {
     /// A buffer that's too small:
     ///
     /// ```
+    /// # #![feature(unicode)]
     /// let mut b = [0; 0];
     ///
     /// let result = 'ß'.encode_utf8(&mut b);

src/test/auxiliary/anon-extern-mod-cross-crate-1.rs

@@ -9,6 +9,7 @@
 // except according to those terms.
 
 #![crate_name="anonexternmod"]
+#![feature(libc)]
 
 extern crate libc;
 

src/test/auxiliary/check_static_recursion_foreign_helper.rs

@@ -10,6 +10,8 @@
 
 // Helper definition for test/run-pass/check-static-recursion-foreign.rs.
 
+#![feature(libc)]
+
 #[crate_id = "check_static_recursion_foreign_helper"]
 #[crate_type = "lib"]
 

src/test/auxiliary/extern-crosscrate-source.rs

@@ -10,6 +10,7 @@
 
 #![crate_name="externcallback"]
 #![crate_type = "lib"]
+#![feature(libc)]
 
 extern crate libc;
 

src/test/auxiliary/foreign_lib.rs

@@ -9,6 +9,7 @@
 // except according to those terms.
 
 #![crate_name="foreign_lib"]
+#![feature(libc)]
 
 pub mod rustrt {
     extern crate libc;

src/test/auxiliary/issue-3012-1.rs

@@ -10,6 +10,7 @@
 
 #![crate_name="socketlib"]
 #![crate_type = "lib"]
+#![feature(libc)]
 
 pub mod socket {
     extern crate libc;

src/test/auxiliary/issue13507.rs

@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+#![feature(core)]
+
 pub mod testtypes {
     use std::any::TypeId;
 

src/test/auxiliary/issue_16723_multiple_items_syntax_ext.rs

@@ -11,7 +11,7 @@
 // ignore-stage1
 // force-host
 
-#![feature(plugin_registrar, quote)]
+#![feature(plugin_registrar, quote, rustc_private)]
 #![crate_type = "dylib"]
 
 extern crate syntax;

src/test/auxiliary/issue_3907.rs

@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+#![feature(core)]
+
 use std::marker::MarkerTrait;
 
 pub trait Foo : MarkerTrait {

src/test/auxiliary/issue_5844_aux.rs

@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+#![feature(libc)]
+
 extern crate libc;
 
 extern "C" {

src/test/auxiliary/linkage-visibility.rs

@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+#![feature(std_misc, old_path)]
+
 use std::dynamic_lib::DynamicLibrary;
 
 #[no_mangle]

src/test/auxiliary/lint_for_crate.rs

@@ -10,7 +10,7 @@
 
 // force-host
 
-#![feature(plugin_registrar)]
+#![feature(plugin_registrar, rustc_private)]
 #![feature(box_syntax)]
 
 extern crate syntax;

src/test/auxiliary/lint_group_plugin_test.rs

@@ -11,7 +11,7 @@
 // force-host
 
 #![feature(plugin_registrar)]
-#![feature(box_syntax)]
+#![feature(box_syntax, rustc_private)]
 
 extern crate syntax;
 

src/test/auxiliary/lint_plugin_test.rs

@@ -11,7 +11,7 @@
 // force-host
 
 #![feature(plugin_registrar)]
-#![feature(box_syntax)]
+#![feature(box_syntax, rustc_private)]
 
 extern crate syntax;
 

src/test/auxiliary/logging_right_crate.rs

@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+#![feature(rustc_private)]
+
 #[macro_use] extern crate log;
 
 pub fn foo<T>() {

src/test/auxiliary/macro_crate_MacroRulesTT.rs

@@ -10,7 +10,7 @@
 
 // force-host
 
-#![feature(plugin_registrar)]
+#![feature(plugin_registrar, rustc_private)]
 
 extern crate syntax;
 extern crate rustc;

src/test/auxiliary/macro_crate_test.rs

@@ -11,7 +11,7 @@
 // force-host
 
 #![feature(plugin_registrar, quote)]
-#![feature(box_syntax)]
+#![feature(box_syntax, rustc_private)]
 
 extern crate syntax;
 extern crate rustc;

src/test/auxiliary/plugin_args.rs

@@ -11,7 +11,7 @@
 // force-host
 
 #![feature(plugin_registrar)]
-#![feature(box_syntax)]
+#![feature(box_syntax, rustc_private)]
 
 extern crate syntax;
 extern crate rustc;

src/test/auxiliary/plugin_crate_outlive_expansion_phase.rs

@@ -11,7 +11,7 @@
 // force-host
 
 #![feature(plugin_registrar)]
-#![feature(box_syntax)]
+#![feature(box_syntax, rustc_private)]
 
 extern crate rustc;
 

src/test/auxiliary/plugin_with_plugin_lib.rs

@@ -10,7 +10,7 @@
 
 // force-host
 
-#![feature(plugin_registrar)]
+#![feature(plugin_registrar, rustc_private)]
 #![deny(plugin_as_library)] // should have no effect in a plugin crate
 
 extern crate macro_crate_test;

src/test/auxiliary/private_trait_xc.rs

@@ -8,4 +8,6 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+#![feature(core)]
+
 trait Foo : ::std::marker::MarkerTrait {}

src/test/auxiliary/procedural_mbe_matching.rs

@@ -11,7 +11,7 @@
 // force-host
 
 #![crate_type="dylib"]
-#![feature(plugin_registrar, quote)]
+#![feature(plugin_registrar, quote, rustc_private)]
 
 extern crate syntax;
 extern crate rustc;

src/test/auxiliary/rlib_crate_test.rs

@@ -11,7 +11,7 @@
 // no-prefer-dynamic
 
 #![crate_type = "rlib"]
-#![feature(plugin_registrar)]
+#![feature(plugin_registrar, rustc_private)]
 
 extern crate rustc;
 

src/test/auxiliary/roman_numerals.rs

@@ -11,7 +11,7 @@
 // force-host
 
 #![crate_type="dylib"]
-#![feature(plugin_registrar)]
+#![feature(plugin_registrar, rustc_private)]
 
 extern crate syntax;
 extern crate rustc;

src/test/auxiliary/svh-a-base.rs

@@ -14,6 +14,7 @@
 //! (#14132).
 
 #![crate_name = "a"]
+#![feature(core)]
 
 use std::marker::MarkerTrait;
 

src/test/auxiliary/svh-a-change-lit.rs

@@ -14,6 +14,7 @@
 //! (#14132).
 
 #![crate_name = "a"]
+#![feature(core)]
 
 use std::marker::MarkerTrait;
 

src/test/auxiliary/svh-a-change-significant-cfg.rs

@@ -14,6 +14,7 @@
 //! (#14132).
 
 #![crate_name = "a"]
+#![feature(core)]
 
 use std::marker::MarkerTrait;
 

src/test/auxiliary/svh-a-change-trait-bound.rs

@@ -14,6 +14,7 @@
 //! (#14132).
 
 #![crate_name = "a"]
+#![feature(core)]
 
 use std::marker::MarkerTrait;
 

src/test/auxiliary/svh-a-change-type-arg.rs

@@ -14,6 +14,7 @@
 //! (#14132).
 
 #![crate_name = "a"]
+#![feature(core)]
 
 use std::marker::MarkerTrait;
 

src/test/auxiliary/svh-a-change-type-ret.rs

@@ -14,6 +14,7 @@
 //! (#14132).
 
 #![crate_name = "a"]
+#![feature(core)]
 
 use std::marker::MarkerTrait;
 

src/test/auxiliary/svh-a-change-type-static.rs

@@ -14,6 +14,7 @@
 //! (#14132).
 
 #![crate_name = "a"]
+#![feature(core)]
 
 use std::marker::MarkerTrait;
 

src/test/auxiliary/svh-a-comment.rs

@@ -14,6 +14,7 @@
 //! (#14132).
 
 #![crate_name = "a"]
+#![feature(core)]
 
 use std::marker::MarkerTrait;
 

src/test/auxiliary/svh-a-doc.rs

@@ -14,6 +14,7 @@
 //! (#14132).
 
 #![crate_name = "a"]
+#![feature(core)]
 
 use std::marker::MarkerTrait;
 

src/test/auxiliary/svh-a-macro.rs

@@ -14,6 +14,7 @@
 //! (#14132).
 
 #![crate_name = "a"]
+#![feature(core)]
 
 use std::marker::MarkerTrait;
 

src/test/auxiliary/svh-a-no-change.rs

@@ -14,6 +14,7 @@
 //! (#14132).
 
 #![crate_name = "a"]
+#![feature(core)]
 
 use std::marker::MarkerTrait;
 

src/test/auxiliary/svh-a-redundant-cfg.rs

@@ -14,6 +14,7 @@
 //! (#14132).
 
 #![crate_name = "a"]
+#![feature(core)]
 
 use std::marker::MarkerTrait;
 

src/test/auxiliary/svh-a-whitespace.rs

@@ -14,6 +14,7 @@
 //! (#14132).
 
 #![crate_name = "a"]
+#![feature(core)]
 
 use std::marker::MarkerTrait;
 

src/test/auxiliary/syntax_extension_with_dll_deps_2.rs

@@ -11,7 +11,7 @@
 // force-host
 
 #![crate_type = "dylib"]
-#![feature(plugin_registrar, quote)]
+#![feature(plugin_registrar, quote, rustc_private)]
 
 extern crate "syntax_extension_with_dll_deps_1" as other;
 extern crate syntax;

src/test/auxiliary/trait_impl_conflict.rs

@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+#![feature(core)]
+
 pub trait Foo : ::std::marker::MarkerTrait {
 }
 

src/test/auxiliary/typeck-default-trait-impl-cross-crate-coherence-lib.rs

@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#![feature(optin_builtin_traits)]
+#![feature(optin_builtin_traits, core)]
 #![crate_type = "rlib"]
 
 use std::marker::MarkerTrait;

src/test/auxiliary/typeid-intrinsic.rs

@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+#![feature(core)]
+
 use std::any::TypeId;
 
 pub struct A;

src/test/auxiliary/typeid-intrinsic2.rs

@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+#![feature(core)]
+
 use std::any::TypeId;
 
 pub struct A;

src/test/auxiliary/weak-lang-items.rs

@@ -13,7 +13,7 @@
 // This aux-file will require the eh_personality function to be codegen'd, but
 // it hasn't been defined just yet. Make sure we don't explode.
 
-#![feature(no_std)]
+#![feature(no_std, core)]
 #![no_std]
 #![crate_type = "rlib"]
 

src/test/bench/core-map.rs

@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#![feature(unboxed_closures)]
+#![feature(unboxed_closures, std_misc, rand)]
 
 use std::collections::{BTreeMap, HashMap, HashSet};
 use std::env;

src/test/bench/core-set.rs

@@ -10,7 +10,7 @@
 
 // ignore-pretty very bad with line comments
 
-#![feature(unboxed_closures)]
+#![feature(unboxed_closures, rand, std_misc, collections)]
 
 extern crate collections;
 extern crate rand;

src/test/bench/core-std.rs

@@ -11,7 +11,7 @@
 // ignore-lexer-test FIXME #15679
 // Microbenchmarks for various functions in std and extra
 
-#![feature(unboxed_closures)]
+#![feature(unboxed_closures, rand, old_io, old_path, std_misc, collections)]
 
 use std::old_io::*;
 use std::old_path::{Path, GenericPath};

src/test/bench/msgsend-pipes-shared.rs

@@ -18,6 +18,8 @@
 // different scalability characteristics compared to the select
 // version.
 
+#![feature(std_misc)]
+
 use std::sync::mpsc::{channel, Sender, Receiver};
 use std::env;
 use std::thread;

src/test/bench/msgsend-pipes.rs

@@ -14,6 +14,8 @@
 //
 // I *think* it's the same, more or less.
 
+#![feature(std_misc)]
+
 use std::sync::mpsc::{channel, Sender, Receiver};
 use std::env;
 use std::thread;

src/test/bench/msgsend-ring-mutex-arcs.rs

@@ -18,6 +18,8 @@
 // no-pretty-expanded FIXME #15189
 // ignore-lexer-test FIXME #15679
 
+#![feature(std_misc)]
+
 use std::env;
 use std::sync::{Arc, Future, Mutex, Condvar};
 use std::time::Duration;

src/test/bench/noise.rs

@@ -12,6 +12,8 @@
 // See https://github.com/nsf/pnoise for timings and alternative implementations.
 // ignore-lexer-test FIXME #15679
 
+#![feature(rand, core)]
+
 use std::f32::consts::PI;
 use std::num::Float;
 use std::rand::{Rng, StdRng};

src/test/bench/shootout-binarytrees.rs

@@ -38,6 +38,8 @@
 // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 // OF THE POSSIBILITY OF SUCH DAMAGE.
 
+#![feature(rustc_private, core)]
+
 extern crate arena;
 
 use std::iter::range_step;

src/test/bench/shootout-fannkuch-redux.rs

@@ -38,6 +38,8 @@
 // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 // OF THE POSSIBILITY OF SUCH DAMAGE.
 
+#![feature(core)]
+
 use std::{cmp, iter, mem};
 use std::thread;
 

src/test/bench/shootout-fasta-redux.rs

@@ -38,6 +38,8 @@
 // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 // OF THE POSSIBILITY OF SUCH DAMAGE.
 
+#![feature(core, old_io, io, core)]
+
 use std::cmp::min;
 use std::old_io::*;
 use std::iter::repeat;

src/test/bench/shootout-fasta.rs

@@ -38,6 +38,8 @@
 // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 // OF THE POSSIBILITY OF SUCH DAMAGE.
 
+#![feature(old_io, old_path, io, core)]
+
 use std::cmp::min;
 use std::old_io::*;
 use std::old_io;

src/test/bench/shootout-k-nucleotide-pipes.rs

@@ -13,7 +13,7 @@
 
 // multi tasking k-nucleotide
 
-#![feature(box_syntax)]
+#![feature(box_syntax, std_misc, old_io, collections, os)]
 
 use std::ascii::{AsciiExt, OwnedAsciiExt};
 use std::cmp::Ordering::{self, Less, Greater, Equal};

src/test/bench/shootout-k-nucleotide.rs

@@ -40,7 +40,7 @@
 
 // ignore-android see #10393 #13206
 
-#![feature(box_syntax)]
+#![feature(box_syntax, std_misc, collections)]
 
 use std::ascii::OwnedAsciiExt;
 use std::env;

src/test/bench/shootout-mandelbrot.rs

@@ -38,7 +38,7 @@
 // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 // OF THE POSSIBILITY OF SUCH DAMAGE.
 
-#![feature(simd)]
+#![feature(simd, old_io, core, io)]
 
 // ignore-pretty very bad with line comments
 

src/test/bench/shootout-meteor.rs

@@ -40,6 +40,8 @@
 
 // no-pretty-expanded FIXME #15189
 
+#![feature(core)]
+
 use std::iter::repeat;
 use std::sync::Arc;
 use std::sync::mpsc::channel;

src/test/bench/shootout-nbody.rs

@@ -38,6 +38,8 @@
 // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 // OF THE POSSIBILITY OF SUCH DAMAGE.
 
+#![feature(core)]
+
 use std::num::Float;
 
 const PI: f64 = 3.141592653589793;

src/test/bench/shootout-pfib.rs

@@ -18,6 +18,8 @@
 
 */
 
+#![feature(std_misc, rustc_private)]
+
 extern crate getopts;
 
 use std::sync::mpsc::{channel, Sender};

src/test/bench/shootout-reverse-complement.rs

@@ -40,7 +40,7 @@
 
 // ignore-android see #10393 #13206
 
-#![feature(unboxed_closures)]
+#![feature(unboxed_closures, libc, old_io, collections, io, core)]
 
 extern crate libc;
 

src/test/bench/shootout-spectralnorm.rs

@@ -41,7 +41,7 @@
 // no-pretty-expanded FIXME #15189
 
 #![allow(non_snake_case)]
-#![feature(unboxed_closures)]
+#![feature(unboxed_closures, core, os)]
 
 use std::iter::{repeat, AdditiveIterator};
 use std::thread;

src/test/bench/std-smallintmap.rs

@@ -10,6 +10,8 @@
 
 // Microbenchmark for the smallintmap library
 
+#![feature(collections, std_misc)]
+
 use std::collections::VecMap;
 use std::env;
 use std::time::Duration;

src/test/bench/sudoku.rs

@@ -10,7 +10,7 @@
 
 // ignore-pretty very bad with line comments
 
-#![feature(box_syntax)]
+#![feature(box_syntax, core)]
 #![allow(non_snake_case)]
 
 use std::io::prelude::*;

src/test/bench/task-perf-alloc-unwind.rs

@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#![feature(unsafe_destructor, box_syntax)]
+#![feature(unsafe_destructor, box_syntax, std_misc, collections)]
 
 use std::env;
 use std::thread;

src/test/compile-fail/internal-unstable-noallow.rs

@@ -16,13 +16,10 @@
 // aux-build:internal_unstable.rs
 // error-pattern:use of unstable library feature 'function'
 // error-pattern:use of unstable library feature 'struct_field'
-// error-pattern:compilation successful
-#![feature(rustc_attrs)]
 
 #[macro_use]
 extern crate internal_unstable;
 
-#[rustc_error]
 fn main() {
     call_unstable_noallow!();
 

src/test/compile-fail/internal-unstable-thread-local.rs

@@ -10,14 +10,12 @@
 
 // aux-build:internal_unstable.rs
 
-#![feature(rustc_attrs)]
 #![allow(dead_code)]
 
 extern crate internal_unstable;
 
 
 thread_local!(static FOO: () = ());
-thread_local!(static BAR: () = internal_unstable::unstable()); //~ WARN use of unstable
+thread_local!(static BAR: () = internal_unstable::unstable()); //~ ERROR use of unstable
 
-#[rustc_error]
-fn main() {} //~ ERROR
+fn main() {}

src/test/compile-fail/internal-unstable.rs

@@ -10,7 +10,7 @@
 
 // aux-build:internal_unstable.rs
 
-#![feature(rustc_attrs, allow_internal_unstable)]
+#![feature(allow_internal_unstable)]
 
 #[macro_use]
 extern crate internal_unstable;
@@ -19,7 +19,7 @@ macro_rules! foo {
     ($e: expr, $f: expr) => {{
         $e;
         $f;
-        internal_unstable::unstable(); //~ WARN use of unstable
+        internal_unstable::unstable(); //~ ERROR use of unstable
     }}
 }
 
@@ -32,20 +32,19 @@ macro_rules! bar {
     }}
 }
 
-#[rustc_error]
-fn main() { //~ ERROR
+fn main() {
     // ok, the instability is contained.
     call_unstable_allow!();
     construct_unstable_allow!(0);
 
     // bad.
-    pass_through_allow!(internal_unstable::unstable()); //~ WARN use of unstable
+    pass_through_allow!(internal_unstable::unstable()); //~ ERROR use of unstable
 
-    pass_through_noallow!(internal_unstable::unstable()); //~ WARN use of unstable
+    pass_through_noallow!(internal_unstable::unstable()); //~ ERROR use of unstable
 
 
 
-    println!("{:?}", internal_unstable::unstable()); //~ WARN use of unstable
+    println!("{:?}", internal_unstable::unstable()); //~ ERROR use of unstable
 
-    bar!(internal_unstable::unstable()); //~ WARN use of unstable
+    bar!(internal_unstable::unstable()); //~ ERROR use of unstable
 }

src/test/compile-fail/lint-output-format.rs

@@ -13,10 +13,10 @@
 
 #![feature(foo)] //~ ERROR unused or unknown feature
 
-extern crate lint_output_format; //~ WARNING: use of unstable library feature
+extern crate lint_output_format; //~ ERROR use of unstable library feature
 use lint_output_format::{foo, bar};
 
 fn main() {
     let _x = foo(); //~ WARNING #[warn(deprecated)] on by default
-    let _y = bar(); //~ WARNING: use of unstable library feature
+    let _y = bar(); //~ ERROR use of unstable library feature
 }

src/test/compile-fail/lint-stability-fields.rs

@@ -22,24 +22,24 @@ mod cross_crate {
     pub fn foo() {
         let x = Stable {
             inherit: 1,
-            override1: 2, //~ WARN use of unstable
+            override1: 2, //~ ERROR use of unstable
             override2: 3,
             //~^ ERROR use of deprecated item
-            //~^^ WARN use of unstable
+            //~^^ ERROR use of unstable
         };
 
         let _ = x.inherit;
-        let _ = x.override1; //~ WARN use of unstable
+        let _ = x.override1; //~ ERROR use of unstable
         let _ = x.override2;
         //~^ ERROR use of deprecated item
-        //~^^ WARN use of unstable
+        //~^^ ERROR use of unstable
 
         let Stable {
             inherit: _,
-            override1: _, //~ WARN use of unstable
+            override1: _, //~ ERROR use of unstable
             override2: _
             //~^ ERROR use of deprecated item
-            //~^^ WARN use of unstable
+            //~^^ ERROR use of unstable
         } = x;
         // all fine
         let Stable { .. } = x;
@@ -47,122 +47,122 @@ mod cross_crate {
         let x = Stable2(1, 2, 3);
 
         let _ = x.0;
-        let _ = x.1; //~ WARN use of unstable
+        let _ = x.1; //~ ERROR use of unstable
         let _ = x.2;
         //~^ ERROR use of deprecated item
-        //~^^ WARN use of unstable
+        //~^^ ERROR use of unstable
 
         let Stable2(_,
-                   _, //~ WARN use of unstable
+                   _, //~ ERROR use of unstable
                    _)
             //~^ ERROR use of deprecated item
-            //~^^ WARN use of unstable
+            //~^^ ERROR use of unstable
             = x;
         // all fine
         let Stable2(..) = x;
 
 
-        let x = Unstable { //~ WARN use of unstable
-            inherit: 1, //~ WARN use of unstable
+        let x = Unstable { //~ ERROR use of unstable
+            inherit: 1, //~ ERROR use of unstable
             override1: 2,
             override2: 3,
             //~^ ERROR use of deprecated item
-            //~^^ WARN use of unstable
+            //~^^ ERROR use of unstable
         };
 
-        let _ = x.inherit; //~ WARN use of unstable
+        let _ = x.inherit; //~ ERROR use of unstable
         let _ = x.override1;
         let _ = x.override2;
         //~^ ERROR use of deprecated item
-        //~^^ WARN use of unstable
+        //~^^ ERROR use of unstable
 
-        let Unstable { //~ WARN use of unstable
-            inherit: _, //~ WARN use of unstable
+        let Unstable { //~ ERROR use of unstable
+            inherit: _, //~ ERROR use of unstable
             override1: _,
             override2: _
             //~^ ERROR use of deprecated item
-            //~^^ WARN use of unstable
+            //~^^ ERROR use of unstable
         } = x;
 
-        let Unstable  //~ WARN use of unstable
+        let Unstable  //~ ERROR use of unstable
             // the patterns are all fine:
             { .. } = x;
 
 
-        let x = Unstable2(1, 2, 3); //~ WARN use of unstable
+        let x = Unstable2(1, 2, 3); //~ ERROR use of unstable
 
-        let _ = x.0; //~ WARN use of unstable
+        let _ = x.0; //~ ERROR use of unstable
         let _ = x.1;
         let _ = x.2;
         //~^ ERROR use of deprecated item
-        //~^^ WARN use of unstable
+        //~^^ ERROR use of unstable
 
-        let Unstable2  //~ WARN use of unstable
-            (_, //~ WARN use of unstable
+        let Unstable2  //~ ERROR use of unstable
+            (_, //~ ERROR use of unstable
              _,
              _)
             //~^ ERROR use of deprecated item
-            //~^^ WARN use of unstable
+            //~^^ ERROR use of unstable
             = x;
-        let Unstable2 //~ WARN use of unstable
+        let Unstable2 //~ ERROR use of unstable
             // the patterns are all fine:
             (..) = x;
 
 
         let x = Deprecated {
             //~^ ERROR use of deprecated item
-            //~^^ WARN use of unstable
+            //~^^ ERROR use of unstable
             inherit: 1,
             //~^ ERROR use of deprecated item
-            //~^^ WARN use of unstable
+            //~^^ ERROR use of unstable
             override1: 2,
-            override2: 3, //~ WARN use of unstable
+            override2: 3, //~ ERROR use of unstable
         };
 
         let _ = x.inherit;
         //~^ ERROR use of deprecated item
-        //~^^ WARN use of unstable
+        //~^^ ERROR use of unstable
         let _ = x.override1;
-        let _ = x.override2; //~ WARN use of unstable
+        let _ = x.override2; //~ ERROR use of unstable
 
         let Deprecated {
             //~^ ERROR use of deprecated item
-            //~^^ WARN use of unstable
+            //~^^ ERROR use of unstable
             inherit: _,
             //~^ ERROR use of deprecated item
-            //~^^ WARN use of unstable
+            //~^^ ERROR use of unstable
             override1: _,
-            override2: _ //~ WARN use of unstable
+            override2: _ //~ ERROR use of unstable
         } = x;
 
         let Deprecated
             //~^ ERROR use of deprecated item
-            //~^^ WARN use of unstable
+            //~^^ ERROR use of unstable
             // the patterns are all fine:
             { .. } = x;
 
         let x = Deprecated2(1, 2, 3);
         //~^ ERROR use of deprecated item
-        //~^^ WARN use of unstable
+        //~^^ ERROR use of unstable
 
         let _ = x.0;
         //~^ ERROR use of deprecated item
-        //~^^ WARN use of unstable
+        //~^^ ERROR use of unstable
         let _ = x.1;
-        let _ = x.2; //~ WARN use of unstable
+        let _ = x.2; //~ ERROR use of unstable
 
         let Deprecated2
         //~^ ERROR use of deprecated item
-        //~^^ WARN use of unstable
+        //~^^ ERROR use of unstable
             (_,
              //~^ ERROR use of deprecated item
-             //~^^ WARN use of unstable
+             //~^^ ERROR use of unstable
              _,
-             _) //~ WARN use of unstable
+             _) //~ ERROR use of unstable
             = x;
         let Deprecated2
         //~^ ERROR use of deprecated item
-        //~^^ WARN use of unstable
+        //~^^ ERROR use of unstable
             // the patterns are all fine:
             (..) = x;
     }

src/test/compile-fail/lint-stability.rs

@@ -24,7 +24,7 @@ extern crate lint_stability;
 
 mod cross_crate {
     extern crate stability_cfg1;
-    extern crate stability_cfg2; //~ WARNING: use of unstable library feature
+    extern crate stability_cfg2; //~ ERROR use of unstable library feature
 
     use lint_stability::*;
 
@@ -51,64 +51,64 @@ mod cross_crate {
         <Foo as Trait>::trait_deprecated_text(&foo); //~ ERROR use of deprecated item: text
 
         deprecated_unstable(); //~ ERROR use of deprecated item
-        //~^ WARNING use of unstable library feature
+        //~^ ERROR use of unstable library feature
         foo.method_deprecated_unstable(); //~ ERROR use of deprecated item
-        //~^ WARNING use of unstable library feature
+        //~^ ERROR use of unstable library feature
         Foo::method_deprecated_unstable(&foo); //~ ERROR use of deprecated item
-        //~^ WARNING use of unstable library feature
+        //~^ ERROR use of unstable library feature
         <Foo>::method_deprecated_unstable(&foo); //~ ERROR use of deprecated item
-        //~^ WARNING use of unstable library feature
+        //~^ ERROR use of unstable library feature
         foo.trait_deprecated_unstable(); //~ ERROR use of deprecated item
-        //~^ WARNING use of unstable library feature
+        //~^ ERROR use of unstable library feature
         Trait::trait_deprecated_unstable(&foo); //~ ERROR use of deprecated item
-        //~^ WARNING use of unstable library feature
+        //~^ ERROR use of unstable library feature
         <Foo>::trait_deprecated_unstable(&foo); //~ ERROR use of deprecated item
-        //~^ WARNING use of unstable library feature
+        //~^ ERROR use of unstable library feature
         <Foo as Trait>::trait_deprecated_unstable(&foo); //~ ERROR use of deprecated item
-        //~^ WARNING use of unstable library feature
+        //~^ ERROR use of unstable library feature
 
         deprecated_unstable_text(); //~ ERROR use of deprecated item: text
-        //~^ WARNING use of unstable library feature
+        //~^ ERROR use of unstable library feature
         foo.method_deprecated_unstable_text(); //~ ERROR use of deprecated item: text
-        //~^ WARNING use of unstable library feature
+        //~^ ERROR use of unstable library feature
         Foo::method_deprecated_unstable_text(&foo); //~ ERROR use of deprecated item: text
-        //~^ WARNING use of unstable library feature
+        //~^ ERROR use of unstable library feature
         <Foo>::method_deprecated_unstable_text(&foo); //~ ERROR use of deprecated item: text
-        //~^ WARNING use of unstable library feature
+        //~^ ERROR use of unstable library feature
         foo.trait_deprecated_unstable_text(); //~ ERROR use of deprecated item: text
-        //~^ WARNING use of unstable library feature
+        //~^ ERROR use of unstable library feature
         Trait::trait_deprecated_unstable_text(&foo); //~ ERROR use of deprecated item: text
-        //~^ WARNING use of unstable library feature
+        //~^ ERROR use of unstable library feature
         <Foo>::trait_deprecated_unstable_text(&foo); //~ ERROR use of deprecated item: text
-        //~^ WARNING use of unstable library feature
+        //~^ ERROR use of unstable library feature
         <Foo as Trait>::trait_deprecated_unstable_text(&foo); //~ ERROR use of deprecated item: text
-        //~^ WARNING use of unstable library feature
+        //~^ ERROR use of unstable library feature
 
-        unstable(); //~ WARNING use of unstable library feature
-        foo.method_unstable(); //~ WARNING use of unstable library feature
-        Foo::method_unstable(&foo); //~ WARNING use of unstable library feature
-        <Foo>::method_unstable(&foo); //~ WARNING use of unstable library feature
-        foo.trait_unstable(); //~ WARNING use of unstable library feature
-        Trait::trait_unstable(&foo); //~ WARNING use of unstable library feature
-        <Foo>::trait_unstable(&foo); //~ WARNING use of unstable library feature
-        <Foo as Trait>::trait_unstable(&foo); //~ WARNING use of unstable library feature
+        unstable(); //~ ERROR use of unstable library feature
+        foo.method_unstable(); //~ ERROR use of unstable library feature
+        Foo::method_unstable(&foo); //~ ERROR use of unstable library feature
+        <Foo>::method_unstable(&foo); //~ ERROR use of unstable library feature
+        foo.trait_unstable(); //~ ERROR use of unstable library feature
+        Trait::trait_unstable(&foo); //~ ERROR use of unstable library feature
+        <Foo>::trait_unstable(&foo); //~ ERROR use of unstable library feature
+        <Foo as Trait>::trait_unstable(&foo); //~ ERROR use of unstable library feature
 
         unstable_text();
-        //~^ WARNING use of unstable library feature 'test_feature': text
+        //~^ ERROR use of unstable library feature 'test_feature': text
         foo.method_unstable_text();
-        //~^ WARNING use of unstable library feature 'test_feature': text
+        //~^ ERROR use of unstable library feature 'test_feature': text
         Foo::method_unstable_text(&foo);
-        //~^ WARNING use of unstable library feature 'test_feature': text
+        //~^ ERROR use of unstable library feature 'test_feature': text
         <Foo>::method_unstable_text(&foo);
-        //~^ WARNING use of unstable library feature 'test_feature': text
+        //~^ ERROR use of unstable library feature 'test_feature': text
         foo.trait_unstable_text();
-        //~^ WARNING use of unstable library feature 'test_feature': text
+        //~^ ERROR use of unstable library feature 'test_feature': text
         Trait::trait_unstable_text(&foo);
-        //~^ WARNING use of unstable library feature 'test_feature': text
+        //~^ ERROR use of unstable library feature 'test_feature': text
         <Foo>::trait_unstable_text(&foo);
-        //~^ WARNING use of unstable library feature 'test_feature': text
+        //~^ ERROR use of unstable library feature 'test_feature': text
         <Foo as Trait>::trait_unstable_text(&foo);
-        //~^ WARNING use of unstable library feature 'test_feature': text
+        //~^ ERROR use of unstable library feature 'test_feature': text
 
         stable();
         foo.method_stable();
@@ -130,26 +130,26 @@ mod cross_crate {
 
         let _ = DeprecatedStruct { i: 0 }; //~ ERROR use of deprecated item
         let _ = DeprecatedUnstableStruct { i: 0 }; //~ ERROR use of deprecated item
-        //~^ WARNING use of unstable library feature
-        let _ = UnstableStruct { i: 0 }; //~ WARNING use of unstable library feature
+        //~^ ERROR use of unstable library feature
+        let _ = UnstableStruct { i: 0 }; //~ ERROR use of unstable library feature
         let _ = StableStruct { i: 0 };
 
         let _ = DeprecatedUnitStruct; //~ ERROR use of deprecated item
         let _ = DeprecatedUnstableUnitStruct; //~ ERROR use of deprecated item
-        //~^ WARNING use of unstable library feature
-        let _ = UnstableUnitStruct; //~ WARNING use of unstable library feature
+        //~^ ERROR use of unstable library feature
+        let _ = UnstableUnitStruct; //~ ERROR use of unstable library feature
         let _ = StableUnitStruct;
 
         let _ = Enum::DeprecatedVariant; //~ ERROR use of deprecated item
         let _ = Enum::DeprecatedUnstableVariant; //~ ERROR use of deprecated item
-        //~^ WARNING use of unstable library feature
-        let _ = Enum::UnstableVariant; //~ WARNING use of unstable library feature
+        //~^ ERROR use of unstable library feature
+        let _ = Enum::UnstableVariant; //~ ERROR use of unstable library feature
         let _ = Enum::StableVariant;
 
         let _ = DeprecatedTupleStruct (1); //~ ERROR use of deprecated item
         let _ = DeprecatedUnstableTupleStruct (1); //~ ERROR use of deprecated item
-        //~^ WARNING use of unstable library feature
-        let _ = UnstableTupleStruct (1); //~ WARNING use of unstable library feature
+        //~^ ERROR use of unstable library feature
+        let _ = UnstableTupleStruct (1); //~ ERROR use of unstable library feature
         let _ = StableTupleStruct (1);
 
         // At the moment, the lint checker only checks stability in
@@ -159,7 +159,7 @@ mod cross_crate {
         // on macros themselves are not yet linted.
         macro_test_arg!(deprecated_text()); //~ ERROR use of deprecated item: text
         macro_test_arg!(deprecated_unstable_text()); //~ ERROR use of deprecated item: text
-        //~^ WARNING use of unstable library feature
+        //~^ ERROR use of unstable library feature
         macro_test_arg!(macro_test_arg!(deprecated_text())); //~ ERROR use of deprecated item: text
     }
 
@@ -173,33 +173,33 @@ mod cross_crate {
         <Foo>::trait_deprecated_text(&foo); //~ ERROR use of deprecated item: text
         <Foo as Trait>::trait_deprecated_text(&foo); //~ ERROR use of deprecated item: text
         foo.trait_deprecated_unstable(); //~ ERROR use of deprecated item
-        //~^ WARNING use of unstable library feature
+        //~^ ERROR use of unstable library feature
         Trait::trait_deprecated_unstable(&foo); //~ ERROR use of deprecated item
-        //~^ WARNING use of unstable library feature
+        //~^ ERROR use of unstable library feature
         <Foo>::trait_deprecated_unstable(&foo); //~ ERROR use of deprecated item
-        //~^ WARNING use of unstable library feature
+        //~^ ERROR use of unstable library feature
         <Foo as Trait>::trait_deprecated_unstable(&foo); //~ ERROR use of deprecated item
-        //~^ WARNING use of unstable library feature
+        //~^ ERROR use of unstable library feature
         foo.trait_deprecated_unstable_text(); //~ ERROR use of deprecated item: text
-        //~^ WARNING use of unstable library feature
+        //~^ ERROR use of unstable library feature
         Trait::trait_deprecated_unstable_text(&foo); //~ ERROR use of deprecated item: text
-        //~^ WARNING use of unstable library feature
+        //~^ ERROR use of unstable library feature
         <Foo>::trait_deprecated_unstable_text(&foo); //~ ERROR use of deprecated item: text
-        //~^ WARNING use of unstable library feature
+        //~^ ERROR use of unstable library feature
         <Foo as Trait>::trait_deprecated_unstable_text(&foo); //~ ERROR use of deprecated item: text
-        //~^ WARNING use of unstable library feature
-        foo.trait_unstable(); //~ WARNING use of unstable library feature
-        Trait::trait_unstable(&foo); //~ WARNING use of unstable library feature
-        <Foo>::trait_unstable(&foo); //~ WARNING use of unstable library feature
-        <Foo as Trait>::trait_unstable(&foo); //~ WARNING use of unstable library feature
+        //~^ ERROR use of unstable library feature
+        foo.trait_unstable(); //~ ERROR use of unstable library feature
+        Trait::trait_unstable(&foo); //~ ERROR use of unstable library feature
+        <Foo>::trait_unstable(&foo); //~ ERROR use of unstable library feature
+        <Foo as Trait>::trait_unstable(&foo); //~ ERROR use of unstable library feature
         foo.trait_unstable_text();
-        //~^ WARNING use of unstable library feature 'test_feature': text
+        //~^ ERROR use of unstable library feature 'test_feature': text
         Trait::trait_unstable_text(&foo);
-        //~^ WARNING use of unstable library feature 'test_feature': text
+        //~^ ERROR use of unstable library feature 'test_feature': text
         <Foo>::trait_unstable_text(&foo);
-        //~^ WARNING use of unstable library feature 'test_feature': text
+        //~^ ERROR use of unstable library feature 'test_feature': text
         <Foo as Trait>::trait_unstable_text(&foo);
-        //~^ WARNING use of unstable library feature 'test_feature': text
+        //~^ ERROR use of unstable library feature 'test_feature': text
         foo.trait_stable();
         Trait::trait_stable(&foo);
         <Foo>::trait_stable(&foo);
@@ -210,46 +210,46 @@ mod cross_crate {
         foo.trait_deprecated(); //~ ERROR use of deprecated item
         foo.trait_deprecated_text(); //~ ERROR use of deprecated item: text
         foo.trait_deprecated_unstable(); //~ ERROR use of deprecated item
-        //~^ WARNING use of unstable library feature
+        //~^ ERROR use of unstable library feature
         foo.trait_deprecated_unstable_text(); //~ ERROR use of deprecated item: text
-        //~^ WARNING use of unstable library feature
-        foo.trait_unstable(); //~ WARNING use of unstable library feature
+        //~^ ERROR use of unstable library feature
+        foo.trait_unstable(); //~ ERROR use of unstable library feature
         foo.trait_unstable_text();
-        //~^ WARNING use of unstable library feature 'test_feature': text
+        //~^ ERROR use of unstable library feature 'test_feature': text
         foo.trait_stable();
     }
 
     struct S;
 
-    impl UnstableTrait for S { } //~ WARNING use of unstable library feature
+    impl UnstableTrait for S { } //~ ERROR use of unstable library feature
 
-    trait LocalTrait : UnstableTrait { } //~ WARNING use of unstable library feature
+    trait LocalTrait : UnstableTrait { } //~ ERROR use of unstable library feature
 
     impl Trait for S {
         fn trait_stable(&self) {}
-        fn trait_unstable(&self) {} //~ WARNING use of unstable library feature
+        fn trait_unstable(&self) {} //~ ERROR use of unstable library feature
     }
 }
 
 mod inheritance {
-    extern crate inherited_stability; //~ WARNING: use of unstable library feature
-    use self::inherited_stability::*; //~ WARNING: use of unstable library feature
+    extern crate inherited_stability; //~ ERROR use of unstable library feature
+    use self::inherited_stability::*; //~ ERROR use of unstable library feature
 
     fn test_inheritance() {
-        unstable(); //~ WARNING use of unstable library feature
+        unstable(); //~ ERROR use of unstable library feature
         stable();
 
-        stable_mod::unstable(); //~ WARNING use of unstable library feature
+        stable_mod::unstable(); //~ ERROR use of unstable library feature
         stable_mod::stable();
 
         unstable_mod::deprecated(); //~ ERROR use of deprecated item
-        unstable_mod::unstable(); //~ WARNING use of unstable library feature
+        unstable_mod::unstable(); //~ ERROR use of unstable library feature
 
-        let _ = Unstable::UnstableVariant; //~ WARNING use of unstable library feature
+        let _ = Unstable::UnstableVariant; //~ ERROR use of unstable library feature
         let _ = Unstable::StableVariant;
 
         let x: usize = 0;
-        x.unstable(); //~ WARNING use of unstable library feature
+        x.unstable(); //~ ERROR use of unstable library feature
         x.stable();
     }
 }

src/test/debuginfo/constant-debug-locs.rs

@@ -16,6 +16,7 @@
 #![allow(unused_variables)]
 #![allow(dead_code)]
 #![omit_gdb_pretty_printer_section]
+#![feature(std_misc, core)]
 
 // This test makes sure that the compiler doesn't crash when trying to assign
 // debug locations to const-expressions.

src/test/debuginfo/function-arg-initialization.rs

@@ -17,6 +17,8 @@
 
 // compile-flags:-g
 
+#![feature(old_io)]
+
 // === GDB TESTS ===================================================================================
 
 // gdb-command:run

src/test/debuginfo/function-prologue-stepping-no-stack-check.rs

@@ -20,6 +20,8 @@
 
 // compile-flags:-g
 
+#![feature(old_io)]
+
 // === GDB TESTS ===================================================================================
 
 // gdb-command:rbreak immediate_args

src/test/debuginfo/issue13213.rs

@@ -11,6 +11,9 @@
 // min-lldb-version: 310
 
 // aux-build:issue13213aux.rs
+
+#![feature(old_io)]
+
 extern crate issue13213aux;
 
 // compile-flags:-g

src/test/debuginfo/simd.rs

@@ -42,6 +42,7 @@
 
 #![allow(unused_variables)]
 #![omit_gdb_pretty_printer_section]
+#![feature(core)]
 
 use std::simd::{i8x16, i16x8,i32x4,i64x2,u8x16,u16x8,u32x4,u64x2,f32x4,f64x2};
 

src/test/run-fail/extern-panic.rs

@@ -12,6 +12,7 @@
 // error-pattern:explicit failure
 // Testing that runtime failure doesn't cause callbacks to abort abnormally.
 // Instead the failure will be delivered after the callbacks return.
+#![feature(std_misc, libc)]
 
 extern crate libc;
 use std::task;

src/test/run-fail/rt-set-exit-status-panic.rs

@@ -10,6 +10,8 @@
 
 // error-pattern:whatever
 
+#![feature(os, rustc_private)]
+
 #[macro_use] extern crate log;
 use std::os;
 

src/test/run-fail/rt-set-exit-status-panic2.rs

@@ -10,6 +10,8 @@
 
 // error-pattern:whatever
 
+#![feature(os, rustc_private)]
+
 #[macro_use] extern crate log;
 use std::os;
 use std::thread;

src/test/run-fail/rt-set-exit-status.rs

@@ -10,6 +10,8 @@
 
 // error-pattern:whatever
 
+#![feature(rustc_private, os)]
+
 #[macro_use] extern crate log;
 use std::os;
 

src/test/run-make/allow-warnings-cmdline-stability/foo.rs

@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+#![feature(test_feature)]
+
 extern crate bar;
 
 pub fn main() { bar::baz() }

src/test/run-make/cannot-read-embedded-idents/create_and_compile.rs

@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+#![feature(old_io, old_path)]
+
 use std::env;
 use std::fs::File;
 use std::process::Command;

src/test/run-make/extern-fn-reachable/main.rs

@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+#![feature(std_misc, old_path, os)]
+
 use std::dynamic_lib::DynamicLibrary;
 use std::os;
 use std::old_path::Path;

src/test/run-make/intrinsic-unreachable/exit-unreachable.rs

@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#![feature(asm)]
+#![feature(asm, core)]
 #![crate_type="lib"]
 
 use std::intrinsics;

src/test/run-make/issue-19371/foo.rs

@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+#![feature(rustc_private, path)]
+
 extern crate rustc;
 extern crate rustc_driver;
 extern crate rustc_lint;

src/test/run-make/link-path-order/main.rs

@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+#![feature(libc, os)]
+
 extern crate libc;
 
 #[link(name="foo")]

src/test/run-make/lto-syntax-extension/main.rs

@@ -8,6 +8,8 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+#![feature(rustc_private)]
+
 extern crate lib;
 #[macro_use] extern crate log;