tests/ui/expr/malformed_closure/ruby_style_closure_successful_parse.stderr

error[E0277]: expected a `FnOnce({integer})` closure, found `Option<usize>`
  --> $DIR/ruby_style_closure_successful_parse.rs:3:31
   |
LL |       let p = Some(45).and_then({|x|
   |  ______________________--------_^
   | |                      |
   | |                      required by a bound introduced by this call
LL | |         1 + 1;
LL | |         Some(x * 2)
   | |         ----------- this tail expression is of type `Option<usize>`
LL | |     });
   | |_____^ expected an `FnOnce({integer})` closure, found `Option<usize>`
   |
   = help: the trait `FnOnce<({integer},)>` is not implemented for `Option<usize>`
note: required by a bound in `Option::<T>::and_then`
  --> $SRC_DIR/core/src/option.rs:LL:COL
help: you might have meant to open the closure body instead of placing a closure within a block
   |
LL -     let p = Some(45).and_then({|x|
LL +     let p = Some(45).and_then(|x| {
   |

error: aborting due to previous error

For more information about this error, try `rustc --explain E0277`.