Auto merge of #24888 - tamird:snapshot, r=alexcrichton

r? @alexcrichton cc @brson

Author: bors

src/liballoc/arc.rs

@@ -355,7 +355,6 @@ impl<T: Clone> Arc<T> {
     }
 }
 
-#[unsafe_destructor]
 #[stable(feature = "rust1", since = "1.0.0")]
 impl<T> Drop for Arc<T> {
     /// Drops the `Arc<T>`.
@@ -489,7 +488,6 @@ impl<T> Clone for Weak<T> {
     }
 }
 
-#[unsafe_destructor]
 #[stable(feature = "rust1", since = "1.0.0")]
 impl<T> Drop for Weak<T> {
     /// Drops the `Weak<T>`.

src/liballoc/lib.rs

@@ -73,7 +73,7 @@
 #![feature(allocator)]
 #![feature(custom_attribute)]
 #![feature(fundamental)]
-#![feature(lang_items, unsafe_destructor)]
+#![feature(lang_items)]
 #![feature(box_syntax)]
 #![feature(optin_builtin_traits)]
 #![feature(unboxed_closures)]

src/liballoc/rc.rs

@@ -375,7 +375,6 @@ impl<T> Deref for Rc<T> {
     }
 }
 
-#[unsafe_destructor]
 #[stable(feature = "rust1", since = "1.0.0")]
 impl<T> Drop for Rc<T> {
     /// Drops the `Rc<T>`.
@@ -693,7 +692,6 @@ impl<T> Weak<T> {
     }
 }
 
-#[unsafe_destructor]
 #[stable(feature = "rust1", since = "1.0.0")]
 impl<T> Drop for Weak<T> {
     /// Drops the `Weak<T>`.

src/libarena/lib.rs

@@ -35,7 +35,6 @@
 #![feature(core)]
 #![feature(staged_api)]
 #![feature(unboxed_closures)]
-#![feature(unsafe_destructor)]
 #![cfg_attr(test, feature(test))]
 
 extern crate alloc;
@@ -124,7 +123,6 @@ fn chunk(size: usize, is_copy: bool) -> Chunk {
     }
 }
 
-#[unsafe_destructor]
 impl<'longer_than_self> Drop for Arena<'longer_than_self> {
     fn drop(&mut self) {
         unsafe {
@@ -510,7 +508,6 @@ impl<T> TypedArena<T> {
     }
 }
 
-#[unsafe_destructor]
 impl<T> Drop for TypedArena<T> {
     fn drop(&mut self) {
         unsafe {

src/libcollections/btree/node.rs

@@ -270,14 +270,12 @@ impl<T> DoubleEndedIterator for RawItems<T> {
     }
 }
 
-#[unsafe_destructor]
 impl<T> Drop for RawItems<T> {
     fn drop(&mut self) {
         for _ in self.by_ref() {}
     }
 }
 
-#[unsafe_destructor]
 impl<K, V> Drop for Node<K, V> {
     fn drop(&mut self) {
         if self.keys.is_null() ||
@@ -1394,7 +1392,6 @@ impl<K, V> TraversalImpl for MoveTraversalImpl<K, V> {
     }
 }
 
-#[unsafe_destructor]
 impl<K, V> Drop for MoveTraversalImpl<K, V> {
     fn drop(&mut self) {
         // We need to cleanup the stored values manually, as the RawItems destructor would run

src/libcollections/lib.rs

@@ -33,7 +33,6 @@
 #![feature(staged_api)]
 #![feature(unboxed_closures)]
 #![feature(unicode)]
-#![feature(unsafe_destructor)]
 #![feature(unique)]
 #![feature(unsafe_no_drop_flag, filling_drop)]
 #![feature(step_by)]

src/libcollections/linked_list.rs

@@ -624,7 +624,6 @@ impl<T> LinkedList<T> {
     }
 }
 
-#[unsafe_destructor]
 #[stable(feature = "rust1", since = "1.0.0")]
 impl<T> Drop for LinkedList<T> {
     fn drop(&mut self) {

src/libcollections/vec.rs

@@ -1626,7 +1626,6 @@ impl<'a, T: Clone> Add<&'a [T]> for Vec<T> {
     }
 }
 
-#[unsafe_destructor]
 #[stable(feature = "rust1", since = "1.0.0")]
 impl<T> Drop for Vec<T> {
     fn drop(&mut self) {
@@ -1808,7 +1807,6 @@ impl<T> DoubleEndedIterator for IntoIter<T> {
 #[stable(feature = "rust1", since = "1.0.0")]
 impl<T> ExactSizeIterator for IntoIter<T> {}
 
-#[unsafe_destructor]
 #[stable(feature = "rust1", since = "1.0.0")]
 impl<T> Drop for IntoIter<T> {
     fn drop(&mut self) {
@@ -1867,7 +1865,6 @@ impl<'a, T> DoubleEndedIterator for Drain<'a, T> {
     }
 }
 
-#[unsafe_destructor]
 #[stable(feature = "rust1", since = "1.0.0")]
 impl<'a, T> Drop for Drain<'a, T> {
     fn drop(&mut self) {
@@ -1914,7 +1911,6 @@ impl<'a, T> Deref for DerefVec<'a, T> {
 }
 
 // Prevent the inner `Vec<T>` from attempting to deallocate memory.
-#[unsafe_destructor]
 #[stable(feature = "rust1", since = "1.0.0")]
 impl<'a, T> Drop for DerefVec<'a, T> {
     fn drop(&mut self) {
@@ -1983,7 +1979,6 @@ struct PartialVecZeroSized<T,U> {
     marker: PhantomData<::core::cell::Cell<(T,U)>>,
 }
 
-#[unsafe_destructor]
 impl<T,U> Drop for PartialVecNonZeroSized<T,U> {
     fn drop(&mut self) {
         unsafe {
@@ -2009,7 +2004,6 @@ impl<T,U> Drop for PartialVecNonZeroSized<T,U> {
     }
 }
 
-#[unsafe_destructor]
 impl<T,U> Drop for PartialVecZeroSized<T,U> {
     fn drop(&mut self) {
         unsafe {

src/libcollections/vec_deque.rs

@@ -59,7 +59,6 @@ impl<T: Clone> Clone for VecDeque<T> {
     }
 }
 
-#[unsafe_destructor]
 #[stable(feature = "rust1", since = "1.0.0")]
 impl<T> Drop for VecDeque<T> {
     fn drop(&mut self) {
@@ -1612,7 +1611,6 @@ pub struct Drain<'a, T: 'a> {
     inner: &'a mut VecDeque<T>,
 }
 
-#[unsafe_destructor]
 #[stable(feature = "rust1", since = "1.0.0")]
 impl<'a, T: 'a> Drop for Drain<'a, T> {
     fn drop(&mut self) {

src/libcollectionstest/lib.rs

@@ -18,7 +18,6 @@
 #![feature(test)]
 #![feature(unboxed_closures)]
 #![feature(unicode)]
-#![feature(unsafe_destructor)]
 #![feature(into_cow)]
 #![feature(step_by)]
 #![cfg_attr(test, feature(str_char))]