Adjust formatting of MultiCartesianProduct implementation to be rus…

…tfmt compliant

src/adaptors/multi_product.rs

@@ -1,7 +1,6 @@
 #![cfg(feature = "use_alloc")]
 
 use crate::size_hint;
-use crate::Itertools;
 
 use alloc::vec::Vec;
 
@@ -15,8 +14,9 @@ use alloc::vec::Vec;
 /// for more information.
 #[must_use = "iterator adaptors are lazy and do nothing unless consumed"]
 pub struct MultiProduct<I>
-    where I: Iterator + Clone,
-          I::Item: Clone;
+where
+    I: Iterator + Clone,
+    I::Item: Clone,
 {
     state: MultiProductState<I::Item>,
     iters: Vec<MultiProductIter<I>>,
@@ -47,10 +47,11 @@ use MultiProductState::*;
 ///
 /// Iterator element is of type `Vec<H::Item::Item>`.
 pub fn multi_cartesian_product<H>(iters: H) -> MultiProduct<<H::Item as IntoIterator>::IntoIter>
-    where H: Iterator,
-          H::Item: IntoIterator,
-          <H::Item as IntoIterator>::IntoIter: Clone,
-          <H::Item as IntoIterator>::Item: Clone
+where
+    H: Iterator,
+    H::Item: IntoIterator,
+    <H::Item as IntoIterator>::IntoIter: Clone,
+    <H::Item as IntoIterator>::Item: Clone,
 {
     MultiProduct {
         state: MultiProductState::Unstarted,
@@ -63,21 +64,23 @@ pub fn multi_cartesian_product<H>(iters: H) -> MultiProduct<<H::Item as IntoIter
 #[derive(Clone, Debug)]
 /// Holds the state of a single iterator within a MultiProduct.
 struct MultiProductIter<I>
-    where I: Iterator + Clone,
-          I::Item: Clone
+where
+    I: Iterator + Clone,
+    I::Item: Clone,
 {
     iter: I,
     iter_orig: I,
 }
 
 impl<I> MultiProductIter<I>
-    where I: Iterator + Clone,
-          I::Item: Clone
+where
+    I: Iterator + Clone,
+    I::Item: Clone,
 {
     fn new(iter: I) -> Self {
         MultiProductIter {
             iter: iter.clone(),
-            iter_orig: iter
+            iter_orig: iter,
         }
     }
 
@@ -87,8 +90,9 @@ impl<I> MultiProductIter<I>
 }
 
 impl<I> Iterator for MultiProduct<I>
-    where I: Iterator + Clone,
-          I::Item: Clone
+where
+    I: Iterator + Clone,
+    I::Item: Clone,
 {
     type Item = Vec<I::Item>;