error: unnecessarily eager cloning of iterator items --> $DIR/iter_overeager_cloned.rs:7:29 | LL | let _: Option = vec.iter().cloned().last(); | ^^^^^^^^^^---------------- | | | help: try: `.last().cloned()` | = note: `-D clippy::iter-overeager-cloned` implied by `-D warnings` = help: to override `-D warnings` add `#[allow(clippy::iter_overeager_cloned)]` error: unnecessarily eager cloning of iterator items --> $DIR/iter_overeager_cloned.rs:9:29 | LL | let _: Option = vec.iter().chain(vec.iter()).cloned().next(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^---------------- | | | help: try: `.next().cloned()` error: unneeded cloning of iterator items --> $DIR/iter_overeager_cloned.rs:11:20 | LL | let _: usize = vec.iter().filter(|x| x == &"2").cloned().count(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^----------------- | | | help: try: `.count()` | = note: `-D clippy::redundant-clone` implied by `-D warnings` = help: to override `-D warnings` add `#[allow(clippy::redundant_clone)]` error: unnecessarily eager cloning of iterator items --> $DIR/iter_overeager_cloned.rs:13:21 | LL | let _: Vec<_> = vec.iter().cloned().take(2).collect(); | ^^^^^^^^^^----------------- | | | help: try: `.take(2).cloned()` error: unnecessarily eager cloning of iterator items --> $DIR/iter_overeager_cloned.rs:15:21 | LL | let _: Vec<_> = vec.iter().cloned().skip(2).collect(); | ^^^^^^^^^^----------------- | | | help: try: `.skip(2).cloned()` error: unnecessarily eager cloning of iterator items --> $DIR/iter_overeager_cloned.rs:17:13 | LL | let _ = vec.iter().filter(|x| x == &"2").cloned().nth(2); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^---------------- | | | help: try: `.nth(2).cloned()` error: unnecessarily eager cloning of iterator items --> $DIR/iter_overeager_cloned.rs:19:13 | LL | let _ = [Some(Some("str".to_string())), Some(Some("str".to_string()))] | _____________^ LL | | .iter() LL | | .cloned() LL | | .flatten(); | |__________________^ | help: try | LL ~ .iter() LL ~ .flatten().cloned(); | error: unnecessarily eager cloning of iterator items --> $DIR/iter_overeager_cloned.rs:24:13 | LL | let _ = vec.iter().cloned().filter(|x| x.starts_with('2')); | ^^^^^^^^^^---------------------------------------- | | | help: try: `.filter(|&x| x.starts_with('2')).cloned()` error: unnecessarily eager cloning of iterator items --> $DIR/iter_overeager_cloned.rs:26:13 | LL | let _ = vec.iter().cloned().find(|x| x == "2"); | ^^^^^^^^^^---------------------------- | | | help: try: `.find(|&x| x == "2").cloned()` error: unnecessarily eager cloning of iterator items --> $DIR/iter_overeager_cloned.rs:30:17 | LL | let _ = vec.iter().cloned().filter(f); | ^^^^^^^^^^------------------- | | | help: try: `.filter(|&x| f(x)).cloned()` error: unnecessarily eager cloning of iterator items --> $DIR/iter_overeager_cloned.rs:31:17 | LL | let _ = vec.iter().cloned().find(f); | ^^^^^^^^^^----------------- | | | help: try: `.find(|&x| f(x)).cloned()` error: unnecessarily eager cloning of iterator items --> $DIR/iter_overeager_cloned.rs:37:17 | LL | let _ = vec.iter().cloned().filter(f); | ^^^^^^^^^^------------------- | | | help: try: `.filter(|&x| f(x)).cloned()` error: unnecessarily eager cloning of iterator items --> $DIR/iter_overeager_cloned.rs:38:17 | LL | let _ = vec.iter().cloned().find(f); | ^^^^^^^^^^----------------- | | | help: try: `.find(|&x| f(x)).cloned()` error: unnecessarily eager cloning of iterator items --> $DIR/iter_overeager_cloned.rs:45:9 | LL | iter.cloned().filter(move |(&a, b)| a == 1 && b == &target) | ^^^^------------------------------------------------------- | | | help: try: `.filter(move |&(&a, b)| a == 1 && b == &target).cloned()` error: unnecessarily eager cloning of iterator items --> $DIR/iter_overeager_cloned.rs:56:13 | LL | iter.cloned().filter(move |S { a, b }| **a == 1 && b == &target) | ^^^^------------------------------------------------------------ | | | help: try: `.filter(move |&S { a, b }| **a == 1 && b == &target).cloned()` error: unneeded cloning of iterator items --> $DIR/iter_overeager_cloned.rs:60:13 | LL | let _ = vec.iter().cloned().map(|x| x.len()); | ^^^^^^^^^^-------------------------- | | | help: try: `.map(|x| x.len())` error: unneeded cloning of iterator items --> $DIR/iter_overeager_cloned.rs:65:13 | LL | let _ = vec.iter().cloned().for_each(|x| assert!(!x.is_empty())); | ^^^^^^^^^^---------------------------------------------- | | | help: try: `.for_each(|x| assert!(!x.is_empty()))` error: unneeded cloning of iterator items --> $DIR/iter_overeager_cloned.rs:67:13 | LL | let _ = vec.iter().cloned().all(|x| x.len() == 1); | ^^^^^^^^^^------------------------------- | | | help: try: `.all(|x| x.len() == 1)` error: unneeded cloning of iterator items --> $DIR/iter_overeager_cloned.rs:69:13 | LL | let _ = vec.iter().cloned().any(|x| x.len() == 1); | ^^^^^^^^^^------------------------------- | | | help: try: `.any(|x| x.len() == 1)` error: aborting due to 19 previous errors