3 files changed, 11 insertions, 0 deletions
diff --git a/src/libstd/sys/common/poison.rs b/src/libstd/sys/common/poison.rs
index c6917d8fca5..446a4445b2d 100644
--- a/src/libstd/sys/common/poison.rs
+++ b/src/libstd/sys/common/poison.rs
@@ -110,6 +110,7 @@ impl<T> fmt::Display for PoisonError<T> {
     }
 }
 
+#[stable(feature = "rust1", since = "1.0.0")]
 impl<T: Send + Reflect> Error for PoisonError<T> {
     fn description(&self) -> &str {
         "poisoned lock: another task failed inside"
@@ -139,6 +140,7 @@ impl<T> PoisonError<T> {
     pub fn get_mut(&mut self) -> &mut T { &mut self.guard }
 }
 
+#[stable(feature = "rust1", since = "1.0.0")]
 impl<T> From<PoisonError<T>> for TryLockError<T> {
     fn from(err: PoisonError<T>) -> TryLockError<T> {
         TryLockError::Poisoned(err)
@@ -162,6 +164,7 @@ impl<T: Send + Reflect> fmt::Display for TryLockError<T> {
     }
 }
 
+#[stable(feature = "rust1", since = "1.0.0")]
 impl<T: Send + Reflect> Error for TryLockError<T> {
     fn description(&self) -> &str {
         match *self {
diff --git a/src/libstd/sys/common/unwind/mod.rs b/src/libstd/sys/common/unwind/mod.rs
index e455d163ed9..aea5acc9071 100644
--- a/src/libstd/sys/common/unwind/mod.rs
+++ b/src/libstd/sys/common/unwind/mod.rs
@@ -203,6 +203,9 @@ pub extern fn rust_begin_unwind(msg: fmt::Arguments,
 /// site as much as possible (so that `panic!()` has as low an impact
 /// on (e.g.) the inlining of other functions as possible), by moving
 /// the actual formatting into this shared place.
+#[unstable(feature = "libstd_sys_internals",
+           reason = "used by the panic! macro",
+           issue = "0")]
 #[inline(never)] #[cold]
 pub fn begin_unwind_fmt(msg: fmt::Arguments, file_line: &(&'static str, u32)) -> ! {
     use fmt::Write;
@@ -218,6 +221,9 @@ pub fn begin_unwind_fmt(msg: fmt::Arguments, file_line: &(&'static str, u32)) ->
 }
 
 /// This is the entry point of unwinding for panic!() and assert!().
+#[unstable(feature = "libstd_sys_internals",
+           reason = "used by the panic! macro",
+           issue = "0")]
 #[inline(never)] #[cold] // avoid code bloat at the call sites as much as possible
 pub fn begin_unwind<M: Any + Send>(msg: M, file_line: &(&'static str, u32)) -> ! {
     // Note that this should be the only allocation performed in this code path.
diff --git a/src/libstd/sys/common/wtf8.rs b/src/libstd/sys/common/wtf8.rs
index 271aba680a2..702a34633dc 100644
--- a/src/libstd/sys/common/wtf8.rs
+++ b/src/libstd/sys/common/wtf8.rs
@@ -715,6 +715,7 @@ impl<'a> Iterator for Wtf8CodePoints<'a> {
     }
 }
 
+#[stable(feature = "rust1", since = "1.0.0")]
 #[derive(Clone)]
 pub struct EncodeWide<'a> {
     code_points: Wtf8CodePoints<'a>,
@@ -722,6 +723,7 @@ pub struct EncodeWide<'a> {
 }
 
 // Copied from libunicode/u_str.rs
+#[stable(feature = "rust1", since = "1.0.0")]
 impl<'a> Iterator for EncodeWide<'a> {
     type Item = u16;