error: called `map_or(None, ..)` on an `Option` value
  --> $DIR/option_map_or_none.rs:10:26
   |
LL |     let _: Option<i32> = opt.map_or(None, |x| Some(x + 1));
   |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try using `map` instead: `opt.map(|x| x + 1)`
   |
   = note: `-D clippy::option-map-or-none` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(clippy::option_map_or_none)]`

error: called `map_or(None, ..)` on an `Option` value
  --> $DIR/option_map_or_none.rs:13:26
   |
LL |       let _: Option<i32> = opt.map_or(None, |x| {
   |  __________________________^
LL | |                         Some(x + 1)
LL | |                        });
   | |_________________________^ help: try using `map` instead: `opt.map(|x| x + 1)`

error: called `map_or(None, ..)` on an `Option` value
  --> $DIR/option_map_or_none.rs:17:26
   |
LL |     let _: Option<i32> = opt.map_or(None, bar);
   |                          ^^^^^^^^^^^^^^^^^^^^^ help: try using `and_then` instead: `opt.and_then(bar)`

error: called `map_or(None, ..)` on an `Option` value
  --> $DIR/option_map_or_none.rs:18:26
   |
LL |       let _: Option<i32> = opt.map_or(None, |x| {
   |  __________________________^
LL | |         let offset = 0;
LL | |         let height = x;
LL | |         Some(offset + height)
LL | |     });
   | |______^
   |
help: try using `and_then` instead
   |
LL ~     let _: Option<i32> = opt.and_then(|x| {
LL +         let offset = 0;
LL +         let height = x;
LL +         Some(offset + height)
LL ~     });
   |

error: called `map_or(None, Some)` on a `Result` value
  --> $DIR/option_map_or_none.rs:25:26
   |
LL |     let _: Option<i32> = r.map_or(None, Some);
   |                          ^^^^^^^^^^^^^^^^^^^^ help: try using `ok` instead: `r.ok()`
   |
   = note: `-D clippy::result-map-or-into-option` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(clippy::result_map_or_into_option)]`

error: aborting due to 5 previous errors