The never type.
This crate defines [`Never`], which is a type that can never be constructed
(in type theory parlance, it is "uninhabited"). It is a stable version of
the currently-unstable [`!`] type from the standard library.
By default, this crate links against `std`. This is enabled via the `std`
feature, which is on by default. To make this crate `no_std`, disable
default features.
[`!`]: https://doc.rust-lang.org/std/primitive.never.html