error[E0425]: cannot find value `missing` in this scope
  --> tests/ui/bad_parse_with_fn.rs:18:23
   |
18 |     #[br(parse_with = missing)]
   |                       ^^^^^^^ not found in this scope

error[E0277]: expected a `FnOnce(&mut _, binrw::Endian, _)` closure, found `{integer}`
  --> tests/ui/bad_parse_with_fn.rs:10:23
   |
10 |     #[br(parse_with = 56)]
   |                       ^^ expected an `FnOnce(&mut _, binrw::Endian, _)` closure, found `{integer}`
   |
   = help: the trait `for<'a> FnOnce(&'a mut _, binrw::Endian, _)` is not implemented for `{integer}`
note: required by a bound in `parse_fn_type_hint`
  --> src/private.rs
   |
   | pub fn parse_fn_type_hint<Ret, ParseFn, R, Args>(f: ParseFn) -> ParseFn
   |        ------------------ required by a bound in this function
...
   |     ParseFn: FnOnce(&mut R, Endian, Args) -> BinResult<Ret>,
   |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `parse_fn_type_hint`

error[E0618]: expected function, found `{integer}`
  --> tests/ui/bad_parse_with_fn.rs:10:23
   |
10 |     #[br(parse_with = 56)]
   |                       ^^ call expression requires function

error[E0308]: mismatched types
  --> tests/ui/bad_parse_with_fn.rs:12:35
   |
12 |     #[br(parse_with = |_, _, _| { true })]
   |                                   ^^^^ expected `Result<_, Error>`, found `bool`
   |
   = note: expected enum `Result<_, binrw::Error>`
              found type `bool`
help: try wrapping the expression in `Ok`
   |
12 |     #[br(parse_with = |_, _, _| { Ok(true) })]
   |                                   +++    +

error[E0308]: mismatched types
  --> tests/ui/bad_parse_with_fn.rs:14:23
   |
14 |     #[br(parse_with = |_, _, _| { Ok(true) })]
   |                       ^^^^^^^^^^^^^^^^^^^^^^ expected `i32`, found `bool`
15 |     c: i32,
   |        --- expected `i32` because of return type

error[E0308]: mismatched types
  --> tests/ui/bad_parse_with_fn.rs:16:23
   |
16 |     #[br(parse_with = wrong)]
   |                       ^^^^^ expected `i32`, found `bool`
17 |     d: i32,
   |        --- expected `i32` because of return type