warning: needless `fn main` in doctest
   --> num_enum/src/../README.md:222:1
    |
222 | / use num_enum::FromPrimitive;
223 | | use std::convert::TryFrom;
224 | |
225 | | #[derive(Debug, Eq, PartialEq, FromPrimitive)]
...   |
241 | |     assert_eq!(two, Number::NonZero(2_u8));
242 | | }
    | |_^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_doctest_main

warning: needless `fn main` in doctest
   --> num_enum/src/../README.md:190:1
    |
190 | / use num_enum::FromPrimitive;
191 | | use std::convert::TryFrom;
192 | |
193 | | #[derive(Debug, Eq, PartialEq, FromPrimitive)]
...   |
209 | |     assert_eq!(two, Number::NonZero);
210 | | }
    | |_^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_doctest_main

warning: needless `fn main` in doctest
   --> num_enum/src/../README.md:159:1
    |
159 | / use num_enum::FromPrimitive;
160 | |
161 | | #[derive(Debug, Eq, PartialEq, FromPrimitive)]
162 | | #[repr(u8)]
...   |
177 | |     );
178 | | }
    | |_^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_doctest_main

warning: needless `fn main` in doctest
   --> num_enum/src/../README.md:96:1
    |
96  | / use num_enum::TryFromPrimitive;
97  | | use std::convert::TryFrom;
98  | |
99  | | #[derive(Debug, Eq, PartialEq, TryFromPrimitive)]
...   |
117 | |     assert_eq!(many, Ok(Number::Many));
118 | | }
    | |_^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_doctest_main

warning: needless `fn main` in doctest
  --> num_enum/src/../README.md:64:1
   |
64 | / use num_enum::TryFromPrimitive;
65 | | use std::convert::TryFrom;
66 | |
67 | | #[derive(Debug, Eq, PartialEq, TryFromPrimitive)]
...  |
89 | |     );
90 | | }
   | |_^
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_doctest_main

warning: needless `fn main` in doctest
  --> num_enum/src/../README.md:33:1
   |
33 | / use num_enum::TryFromPrimitive;
34 | | use std::convert::TryFrom;
35 | |
36 | | #[derive(Debug, Eq, PartialEq, TryFromPrimitive)]
...  |
51 | |     );
52 | | }
   | |_^
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_doctest_main

warning: needless `fn main` in doctest
  --> num_enum/src/../README.md:13:1
   |
13 | / use num_enum::IntoPrimitive;
14 | |
15 | | #[derive(IntoPrimitive)]
16 | | #[repr(u8)]
...  |
24 | |     assert_eq!(zero, 0u8);
25 | | }
   | |_^
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_doctest_main
   = note: `#[warn(clippy::needless_doctest_main)]` on by default

warning: this `map_or` can be simplified
  --> num_enum_derive/src/parsing.rs:34:31
   |
34 |                       return Ok(variants.map_or(false, |v| {
   |  _______________________________^
35 | |                         v == self
36 | |                             .variants
37 | |                             .iter()
38 | |                             .map(|v| v.alternative_values.len() + 1)
39 | |                             .sum()
40 | |                     }));
   | |______________________^
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_map_or
   = note: `#[warn(clippy::unnecessary_map_or)]` on by default
help: use is_some_and instead
   |
34 -                     return Ok(variants.map_or(false, |v| {
34 +                     return Ok(variants.is_some_and(|v| {
   |