MAINT: Port to Rust 2018 edition

src/array.rs

@@ -26,7 +26,7 @@ pub unsafe trait Array {
 
 pub trait Index : PartialEq + Copy {
     fn to_usize(self) -> usize;
-    fn from(usize) -> Self;
+    fn from(_: usize) -> Self;
 }
 
 impl Index for () {

src/array_string.rs

@@ -9,10 +9,10 @@ use std::str::FromStr;
 use std::str::Utf8Error;
 use std::slice;
 
-use array::Array;
-use array::Index;
-use CapacityError;
-use char::encode_utf8;
+use crate::array::Array;
+use crate::array::Index;
+use crate::CapacityError;
+use crate::char::encode_utf8;
 
 #[cfg(feature="serde-1")]
 use serde::{Serialize, Deserialize, Serializer, Deserializer};

src/lib.rs

@@ -48,7 +48,7 @@ use std::io;
 
 
 mod maybe_uninit;
-use maybe_uninit::MaybeUninit;
+use crate::maybe_uninit::MaybeUninit;
 
 #[cfg(feature="serde-1")]
 use serde::{Serialize, Deserialize, Serializer, Deserializer};
@@ -59,11 +59,11 @@ mod char;
 mod range;
 mod errors;
 
-pub use array::Array;
-pub use range::RangeArgument;
-use array::Index;
-pub use array_string::ArrayString;
-pub use errors::CapacityError;
+pub use crate::array::Array;
+pub use crate::range::RangeArgument;
+use crate::array::Index;
+pub use crate::array_string::ArrayString;
+pub use crate::errors::CapacityError;
 
 
 /// A vector with a fixed capacity.

src/maybe_uninit.rs

@@ -1,6 +1,6 @@
 
 
-use array::Array;
+use crate::array::Array;
 use std::mem::MaybeUninit as StdMaybeUninit;
 
 #[derive(Copy)]