Remove FusedIterator implementation of iter::Scan

tbu- · tbu- · commit a7d91ef2fe85 · 2017-05-15T16:21:02.000+02:00
Fixes rust-lang#41964. This is a breaking change.
diff --git a/src/libcore/iter/mod.rs b/src/libcore/iter/mod.rs
@@ -1778,10 +1778,6 @@ 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
`@@ -1778,10 +1778,6 @@ impl<B, I, St, F> Iterator for Scan<I, St, F> where`
`1778`	`1778`	`}`
`1779`	`1779`	`}`
`1780`	`1780`
`1781`		`-#[unstable(feature = "fused", issue = "35602")]`
`1782`		`-impl<B, I, St, F> FusedIterator for Scan<I, St, F>`
`1783`		`- where I: FusedIterator, F: FnMut(&mut St, I::Item) -> Option<B> {}`
`1784`		`-`
`1785`	`1781`	`/// An iterator that maps each element to an iterator, and yields the elements`
`1786`	`1782`	`/// of the produced iterators.`
`1787`	`1783`	`///`