Auto merge of rust-lang#42014 - tbu-:pr_scan_not_fused, r=alexcrichton

bors · bors · commit c732446eddeb · 2017-05-26T12:54:11.000Z
Remove `FusedIterator` implementation of `iter::Scan` Fixes rust-lang#41964. This is a breaking change.
diff --git a/src/libcore/iter/mod.rs b/src/libcore/iter/mod.rs
@@ -1813,10 +1813,6 @@ impl<B, I, St, F> Iterator for Scan<I, St, F> where
     }
 }
 
-#[unstable(feature = "fused", issue = "35602")]
-impl<B, I, St, F> FusedIterator for Scan<I, St, F>
-    where I: FusedIterator, F: FnMut(&mut St, I::Item) -> Option<B> {}
-
 /// An iterator that maps each element to an iterator, and yields the elements
 /// of the produced iterators.
 ///

Original file line number	Diff line number	Diff line change
`@@ -1813,10 +1813,6 @@ impl<B, I, St, F> Iterator for Scan<I, St, F> where`
`1813`	`1813`	`}`
`1814`	`1814`	`}`
`1815`	`1815`
`1816`		`-#[unstable(feature = "fused", issue = "35602")]`
`1817`		`-impl<B, I, St, F> FusedIterator for Scan<I, St, F>`
`1818`		`- where I: FusedIterator, F: FnMut(&mut St, I::Item) -> Option<B> {}`
`1819`		`-`
`1820`	`1816`	`/// An iterator that maps each element to an iterator, and yields the elements`
`1821`	`1817`	`/// of the produced iterators.`
`1822`	`1818`	`///`