num_enum 0.7.6

Procedural macros to make inter-operation between primitives and enums easier.
Documentation 
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error: #[derive(num_enum::FromPrimitive)] requires enum to be exhaustive, or a variant marked with `#[default]`, `#[num_enum(default)]`, or `#[num_enum(catch_all)`
 --> $DIR/missing_default.rs:1:10
  |
1 | #[derive(num_enum::FromPrimitive)]
  |          ^^^^^^^^^^^^^^^^^^^^^^^
  |
  = note: this error originates in the derive macro `num_enum::FromPrimitive` (in Nightly builds, run with -Z macro-backtrace for more info)