please tidy

library/core/src/iter/adapters/fuse.rs

@@ -1,9 +1,9 @@
 use super::InPlaceIterable;
 use crate::intrinsics;
 use crate::iter::adapters::zip::try_get_unchecked;
+use crate::iter::adapters::SourceIter;
 use crate::iter::TrustedRandomAccess;
 use crate::iter::{DoubleEndedIterator, ExactSizeIterator, FusedIterator, Iterator};
-use crate::iter::adapters::SourceIter;
 use crate::ops::Try;
 
 /// An iterator that yields `None` forever after the underlying iterator

library/core/src/iter/adapters/mod.rs

@@ -485,7 +485,6 @@ where
 unsafe impl<I> TrustedRandomAccess for Cloned<I>
 where
     I: TrustedRandomAccess,
-
 {
     #[inline]
     fn may_have_side_effect() -> bool {

library/core/src/iter/adapters/zip.rs

@@ -334,10 +334,10 @@ where
 // it would require negative trait bounds to be able to try both
 #[unstable(issue = "none", feature = "inplace_iteration")]
 unsafe impl<S, A, B> SourceIter for Zip<A, B>
-    where
-        A: SourceIter<Source = S>,
-        B: Iterator,
-        S: Iterator,
+where
+    A: SourceIter<Source = S>,
+    B: Iterator,
+    S: Iterator,
 {
     type Source = S;