Forgot one

slerpyyy · slerpyyy · commit 1ec9aa84e51d · 2022-08-22T00:52:16.000+02:00
diff --git a/library/core/src/iter/adapters/dedup.rs b/library/core/src/iter/adapters/dedup.rs
@@ -137,7 +137,7 @@ impl<I, F, T> DedupByKey<I, F, T> {
 impl<I, F, K, T> Iterator for DedupByKey<I, F, T>
 where
     I: Iterator<Item = T>,
-    F: Fn(&T) -> K,
+    F: FnMut(&T) -> K,
     K: PartialEq,
 {
     type Item = T;

Original file line number	Diff line number	Diff line change
`@@ -137,7 +137,7 @@ impl<I, F, T> DedupByKey<I, F, T> {`
`137`	`137`	`impl<I, F, K, T> Iterator for DedupByKey<I, F, T>`
`138`	`138`	`where`
`139`	`139`	`I: Iterator<Item = T>,`
`140`		`- F: Fn(&T) -> K,`
	`140`	`+ F: FnMut(&T) -> K,`
`141`	`141`	`K: PartialEq,`
`142`	`142`	`{`
`143`	`143`	`type Item = T;`