error: manual implementation of `split_once`
  --> $DIR/manual_split_once.rs:11:13
   |
LL |     let _ = "key=value".splitn(2, '=').nth(1).unwrap();
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `"key=value".split_once('=').unwrap().1`
   |
   = note: `-D clippy::manual-split-once` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(clippy::manual_split_once)]`

error: manual implementation of `split_once`
  --> $DIR/manual_split_once.rs:12:13
   |
LL |     let _ = "key=value".splitn(2, '=').skip(1).next().unwrap();
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `"key=value".split_once('=').unwrap().1`

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

error: manual implementation of `split_once`
  --> $DIR/manual_split_once.rs:16:13
   |
LL |     let _ = s.splitn(2, '=').nth(1).unwrap();
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `s.split_once('=').unwrap().1`

error: manual implementation of `split_once`
  --> $DIR/manual_split_once.rs:19:13
   |
LL |     let _ = s.splitn(2, '=').nth(1).unwrap();
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `s.split_once('=').unwrap().1`

error: manual implementation of `split_once`
  --> $DIR/manual_split_once.rs:22:13
   |
LL |     let _ = s.splitn(2, '=').skip(1).next().unwrap();
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `s.split_once('=').unwrap().1`

error: manual implementation of `split_once`
  --> $DIR/manual_split_once.rs:25:17
   |
LL |         let _ = s.splitn(2, '=').nth(1)?;
   |                 ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `s.split_once('=')?.1`

error: manual implementation of `split_once`
  --> $DIR/manual_split_once.rs:26:17
   |
LL |         let _ = s.splitn(2, '=').skip(1).next()?;
   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `s.split_once('=')?.1`

error: manual implementation of `rsplit_once`
  --> $DIR/manual_split_once.rs:27:17
   |
LL |         let _ = s.rsplitn(2, '=').nth(1)?;
   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `s.rsplit_once('=')?.0`

error: manual implementation of `rsplit_once`
  --> $DIR/manual_split_once.rs:28:17
   |
LL |         let _ = s.rsplitn(2, '=').skip(1).next()?;
   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `s.rsplit_once('=')?.0`

error: manual implementation of `rsplit_once`
  --> $DIR/manual_split_once.rs:36:13
   |
LL |     let _ = "key=value".rsplitn(2, '=').nth(1).unwrap();
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `"key=value".rsplit_once('=').unwrap().0`

error: manual implementation of `rsplit_once`
  --> $DIR/manual_split_once.rs:37:18
   |
LL |     let (_, _) = "key=value".rsplitn(2, '=').next_tuple().unwrap();
   |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `"key=value".rsplit_once('=').map(|(x, y)| (y, x))`

error: manual implementation of `rsplit_once`
  --> $DIR/manual_split_once.rs:38:13
   |
LL |     let _ = s.rsplitn(2, '=').nth(1);
   |             ^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `s.rsplit_once('=').map(|x| x.0)`

error: manual implementation of `split_once`
  --> $DIR/manual_split_once.rs:42:5
   |
LL |     let mut iter = "a.b.c".splitn(2, '.');
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
LL |     let l = iter.next().unwrap();
   |     ----------------------------- first usage here
LL |     let r = iter.next().unwrap();
   |     ----------------------------- second usage here
   |
help: try `split_once`
   |
LL |     let (l, r) = "a.b.c".split_once('.').unwrap();
   |
help: remove the `iter` usages
   |
LL -     let l = iter.next().unwrap();
LL +     
   |
help: remove the `iter` usages
   |
LL -     let r = iter.next().unwrap();
LL +     
   |

error: manual implementation of `split_once`
  --> $DIR/manual_split_once.rs:46:5
   |
LL |     let mut iter = "a.b.c".splitn(2, '.');
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
LL |     let l = iter.next()?;
   |     --------------------- first usage here
LL |     let r = iter.next()?;
   |     --------------------- second usage here
   |
help: try `split_once`
   |
LL |     let (l, r) = "a.b.c".split_once('.')?;
   |
help: remove the `iter` usages
   |
LL -     let l = iter.next()?;
LL +     
   |
help: remove the `iter` usages
   |
LL -     let r = iter.next()?;
LL +     
   |

error: manual implementation of `rsplit_once`
  --> $DIR/manual_split_once.rs:50:5
   |
LL |     let mut iter = "a.b.c".rsplitn(2, '.');
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
LL |     let r = iter.next().unwrap();
   |     ----------------------------- first usage here
LL |     let l = iter.next().unwrap();
   |     ----------------------------- second usage here
   |
help: try `rsplit_once`
   |
LL |     let (l, r) = "a.b.c".rsplit_once('.').unwrap();
   |
help: remove the `iter` usages
   |
LL -     let r = iter.next().unwrap();
LL +     
   |
help: remove the `iter` usages
   |
LL -     let l = iter.next().unwrap();
LL +     
   |

error: manual implementation of `rsplit_once`
  --> $DIR/manual_split_once.rs:54:5
   |
LL |     let mut iter = "a.b.c".rsplitn(2, '.');
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
LL |     let r = iter.next()?;
   |     --------------------- first usage here
LL |     let l = iter.next()?;
   |     --------------------- second usage here
   |
help: try `rsplit_once`
   |
LL |     let (l, r) = "a.b.c".rsplit_once('.')?;
   |
help: remove the `iter` usages
   |
LL -     let r = iter.next()?;
LL +     
   |
help: remove the `iter` usages
   |
LL -     let l = iter.next()?;
LL +     
   |

error: manual implementation of `split_once`
  --> $DIR/manual_split_once.rs:139:13
   |
LL |     let _ = "key=value".splitn(2, '=').nth(1).unwrap();
   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `"key=value".split_once('=').unwrap().1`

error: manual implementation of `split_once`
  --> $DIR/manual_split_once.rs:141:5
   |
LL |     let mut iter = "a.b.c".splitn(2, '.');
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
LL |     let a = iter.next().unwrap();
   |     ----------------------------- first usage here
LL |     let b = iter.next().unwrap();
   |     ----------------------------- second usage here
   |
help: try `split_once`
   |
LL |     let (a, b) = "a.b.c".split_once('.').unwrap();
   |
help: remove the `iter` usages
   |
LL -     let a = iter.next().unwrap();
LL +     
   |
help: remove the `iter` usages
   |
LL -     let b = iter.next().unwrap();
LL +     
   |

error: aborting due to 19 previous errors