Use edition 2018

Author: mbrubeck

Cargo.toml

@@ -8,6 +8,7 @@ repository = "https://github.com/reem/rust-ordered-float"
 readme = "README.md"
 keywords = ["no_std", "ord", "f64", "f32", "sort"]
 categories = ["science", "rust-patterns", "no-std"]
+edition = "2018"
 
 [dependencies]
 num-traits = { version = "0.2.1", default-features = false }

src/lib.rs

@@ -4,7 +4,6 @@
 
 //! Wrappers for total order on Floats.
 
-extern crate num_traits;
 #[cfg(feature = "std")] extern crate std;
 #[cfg(feature = "std")] use std::error::Error;