auto merge of #20677 : alexcrichton/rust/rollup, r=alexcrichton

4 files changed, 17 insertions, 10 deletions

diff --git a/src/libstd/rt/macros.rs b/src/libstd/rt/macros.rs
index bbc96d0b19f..1e3ab6d34da 100644
--- a/src/libstd/rt/macros.rs
+++ b/src/libstd/rt/macros.rs
@@ -14,16 +14,24 @@
 //! they aren't defined anywhere outside of the `rt` module.
 
 macro_rules! rterrln {
-    ($fmt:expr $($arg:tt)*) => ( {
-        ::rt::util::dumb_print(format_args!(concat!($fmt, "\n") $($arg)*))
+    ($fmt:expr) => ( {
+        ::rt::util::dumb_print(format_args!(concat!($fmt, "\n")))
+    } );
+    ($fmt:expr, $($arg:expr),*) => ( {
+        ::rt::util::dumb_print(format_args!(concat!($fmt, "\n"), $($arg)*))
     } )
 }
 
 // Some basic logging. Enabled by passing `--cfg rtdebug` to the libstd build.
 macro_rules! rtdebug {
-    ($($arg:tt)*) => ( {
+    ($arg:expr) => ( {
         if cfg!(rtdebug) {
-            rterrln!($($arg)*)
+            rterrln!($arg)
+        }
+    } );
+    ($str:expr, $($arg:expr),*) => ( {
+        if cfg!(rtdebug) {
+            rterrln!($str, $($arg)*)
         }
     })
 }
diff --git a/src/libstd/rt/mod.rs b/src/libstd/rt/mod.rs
index e556888a470..5ef55f5b487 100644
--- a/src/libstd/rt/mod.rs
+++ b/src/libstd/rt/mod.rs
@@ -23,7 +23,7 @@
 
 #![allow(dead_code)]
 
-use kinds::Send;
+use marker::Send;
 use ops::FnOnce;
 use sys;
 use thunk::Thunk;
@@ -39,8 +39,7 @@ pub use alloc::heap;
 pub mod backtrace;
 
 // Internals
-#[cfg_attr(stage0, macro_escape)]
-#[cfg_attr(not(stage0), macro_use)]
+#[macro_use]
 mod macros;
 
 // These should be refactored/moved/made private over time
diff --git a/src/libstd/rt/unwind.rs b/src/libstd/rt/unwind.rs
index 71169386c18..fd84f220942 100644
--- a/src/libstd/rt/unwind.rs
+++ b/src/libstd/rt/unwind.rs
@@ -544,7 +544,7 @@ fn begin_unwind_inner(msg: Box<Any + Send>, file_line: &(&'static str, uint)) ->
     // MAX_CALLBACKS, so we're sure to clamp it as necessary.
     let callbacks = {
         let amt = CALLBACK_CNT.load(Ordering::SeqCst);
-        CALLBACKS[..cmp::min(amt, MAX_CALLBACKS)]
+        CALLBACKS.index(&(0..cmp::min(amt, MAX_CALLBACKS)))
     };
     for cb in callbacks.iter() {
         match cb.load(Ordering::SeqCst) {
diff --git a/src/libstd/rt/util.rs b/src/libstd/rt/util.rs
index bc01ce926f8..59f654a95ca 100644
--- a/src/libstd/rt/util.rs
+++ b/src/libstd/rt/util.rs
@@ -131,7 +131,7 @@ pub fn abort(args: fmt::Arguments) -> ! {
     impl<'a> fmt::Writer for BufWriter<'a> {
         fn write_str(&mut self, bytes: &str) -> fmt::Result {
             let left = self.buf.slice_from_mut(self.pos);
-            let to_write = bytes.as_bytes()[..cmp::min(bytes.len(), left.len())];
+            let to_write = bytes.as_bytes().index(&(0..cmp::min(bytes.len(), left.len())));
             slice::bytes::copy_memory(left, to_write);
             self.pos += to_write.len();
             Ok(())
@@ -142,7 +142,7 @@ pub fn abort(args: fmt::Arguments) -> ! {
     let mut msg = [0u8; 512];
     let mut w = BufWriter { buf: &mut msg, pos: 0 };
     let _ = write!(&mut w, "{}", args);
-    let msg = str::from_utf8(w.buf[mut ..w.pos]).unwrap_or("aborted");
+    let msg = str::from_utf8(w.buf.index_mut(&(0..w.pos))).unwrap_or("aborted");
     let msg = if msg.is_empty() {"aborted"} else {msg};
 
     // Give some context to the message