Simplifications from clippy

`clippy::uninlined_format_args` and 2 more.

Author: Philippe-Cholet

src/lib.rs

@@ -4776,13 +4776,7 @@ where
                     (Some(a), Some(b)) => a == b,
                     _ => false,
                 };
-                assert!(
-                    equal,
-                    "Failed assertion {a:?} == {b:?} for iteration {i}",
-                    i = i,
-                    a = a,
-                    b = b
-                );
+                assert!(equal, "Failed assertion {a:?} == {b:?} for iteration {i}");
                 i += 1;
             }
         }

src/process_results_impl.rs

@@ -62,8 +62,7 @@ where
 
 impl<I, T, E> DoubleEndedIterator for ProcessResults<'_, I, E>
 where
-    I: Iterator<Item = Result<T, E>>,
-    I: DoubleEndedIterator,
+    I: DoubleEndedIterator<Item = Result<T, E>>,
 {
     fn next_back(&mut self) -> Option<Self::Item> {
         let item = self.iter.next_back();

src/repeatn.rs

@@ -34,7 +34,7 @@ where
     fn next(&mut self) -> Option<Self::Item> {
         if self.n > 1 {
             self.n -= 1;
-            self.elt.as_ref().cloned()
+            self.elt.clone()
         } else {
             self.n = 0;
             self.elt.take()

tests/quick.rs

@@ -681,7 +681,7 @@ quickcheck! {
             assert_eq!(perm.len(), k);
 
             let all_items_valid = perm.iter().all(|p| vals.contains(p));
-            assert!(all_items_valid, "perm contains value not from input: {:?}", perm);
+            assert!(all_items_valid, "perm contains value not from input: {perm:?}");
 
             // Check that all perm items are distinct
             let distinct_len = {
@@ -691,7 +691,7 @@ quickcheck! {
             assert_eq!(perm.len(), distinct_len);
 
             // Check that the perm is new
-            assert!(actual.insert(perm.clone()), "perm already encountered: {:?}", perm);
+            assert!(actual.insert(perm.clone()), "perm already encountered: {perm:?}");
         }
     }
 
@@ -717,8 +717,7 @@ quickcheck! {
         for next_perm in perms {
             assert!(
                 next_perm > curr_perm,
-                "next perm isn't greater-than current; next_perm={:?} curr_perm={:?} n={}",
-                next_perm, curr_perm, n
+                "next perm isn't greater-than current; next_perm={next_perm:?} curr_perm={curr_perm:?} n={n}"
             );
 
             curr_perm = next_perm;