Binary package “librust-num-enum-derive+proc-macro-crate-dev” in ubuntu mantic

Internal implementation details for ::num_enum (Procedural macros to make inter-operation between primitives and enums easier) - feature "proc-macro-crate" and 2 more

 This metapackage enables feature "proc-macro-crate" for the Rust
 num_enum_derive crate, by pulling in any additional dependencies needed by
 that feature.
 .
 Additionally, this package also provides the "default", and "std" features.