error: manual implementation of `split_once`
  --> $DIR/manual_split_once.rs:13:13
   |
LL |     let _ = "key=value".splitn(2, '=').next();
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `Some("key=value".split_once('=').map_or("key=value", |x| x.0))`
   |
   = note: `-D clippy::manual-split-once` implied by `-D warnings`

error: manual implementation of `split_once`
  --> $DIR/manual_split_once.rs:15:13
   |
LL |     let _ = "key=value".splitn(2, '=').next().unwrap();
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `"key=value".split_once('=').map_or("key=value", |x| x.0)`

error: manual implementation of `split_once`
  --> $DIR/manual_split_once.rs:16:13
   |
LL |     let _ = "key=value".splitn(2, '=').nth(0).unwrap();
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `"key=value".split_once('=').map_or("key=value", |x| x.0)`

error: manual implementation of `split_once`
  --> $DIR/manual_split_once.rs:17:13
   |
LL |     let _ = "key=value".splitn(2, '=').nth(1).unwrap();
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `"key=value".split_once('=').unwrap().1`

error: manual implementation of `split_once`
  --> $DIR/manual_split_once.rs:18:13
   |
LL |     let _ = "key=value".splitn(2, '=').skip(1).next().unwrap();
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `"key=value".split_once('=').unwrap().1`

error: manual implementation of `split_once`
  --> $DIR/manual_split_once.rs:19:18
   |
LL |     let (_, _) = "key=value".splitn(2, '=').next_tuple().unwrap();
   |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `"key=value".split_once('=')`

error: manual implementation of `split_once`
  --> $DIR/manual_split_once.rs:22:13
   |
LL |     let _ = s.splitn(2, '=').next().unwrap();
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `s.split_once('=').map_or(&*s, |x| x.0)`

error: manual implementation of `split_once`
  --> $DIR/manual_split_once.rs:25:13
   |
LL |     let _ = s.splitn(2, '=').nth(0).unwrap();
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `s.split_once('=').map_or(&*s, |x| x.0)`

error: manual implementation of `split_once`
  --> $DIR/manual_split_once.rs:28:13
   |
LL |     let _ = s.splitn(2, '=').skip(0).next().unwrap();
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `s.split_once('=').map_or(*s, |x| x.0)`

error: manual implementation of `split_once`
  --> $DIR/manual_split_once.rs:31:17
   |
LL |         let _ = s.splitn(2, "key=value").next()?;
   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `s.split_once("key=value").map_or(s, |x| x.0)`

error: manual implementation of `split_once`
  --> $DIR/manual_split_once.rs:32:17
   |
LL |         let _ = s.splitn(2, "key=value").nth(1)?;
   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `s.split_once("key=value")?.1`

error: manual implementation of `split_once`
  --> $DIR/manual_split_once.rs:33:17
   |
LL |         let _ = s.splitn(2, "key=value").skip(1).next()?;
   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `s.split_once("key=value")?.1`

error: manual implementation of `rsplit_once`
  --> $DIR/manual_split_once.rs:41:13
   |
LL |     let _ = "key=value".rsplitn(2, '=').next().unwrap();
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `"key=value".rsplit_once('=').unwrap().1`

error: manual implementation of `rsplit_once`
  --> $DIR/manual_split_once.rs:42:13
   |
LL |     let _ = "key=value".rsplitn(2, '=').nth(1).unwrap();
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `"key=value".rsplit_once('=').map_or("key=value", |x| x.0)`

error: manual implementation of `rsplit_once`
  --> $DIR/manual_split_once.rs:43:13
   |
LL |     let _ = "key=value".rsplitn(2, '=').nth(0);
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `"key=value".rsplit_once('=').map(|x| x.1)`

error: manual implementation of `rsplit_once`
  --> $DIR/manual_split_once.rs:44:18
   |
LL |     let (_, _) = "key=value".rsplitn(2, '=').next_tuple().unwrap();
   |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `"key=value".rsplit_once('=').map(|(x, y)| (y, x))`

error: manual implementation of `split_once`
  --> $DIR/manual_split_once.rs:55:13
   |
LL |     let _ = "key=value".splitn(2, '=').nth(1).unwrap();
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `"key=value".split_once('=').unwrap().1`

error: aborting due to 17 previous errors