Remove deprecated rustc-serialize crate

Cargo.toml

@@ -3,7 +3,7 @@ name = "rust-scrypt"
 authors = ["Constantine Kryvomaz <[email protected]>"]
 description = "Bindings into C for Tarsnap's `Scrypt` algorithm"
 repository = "https://github.com/r8d8/rust-scrypt"
-version = "1.0.0"
+version = "1.1.0"
 build = "build.rs"
 keywords = ["rust", "crypto", "scrypt"]
 readme = "README.md"
@@ -17,7 +17,6 @@ gcc = "0.3"
 
 [dependencies]
 clippy = {version = "0.0", optional = true}
-rustc-serialize = "0.3"
 
 [features]
 dev = ["clippy"]

benches/bench.rs

@@ -3,8 +3,8 @@ extern crate rust_scrypt;
 extern crate rustc_serialize;
 extern crate test;
 
-use rustc_serialize::hex::FromHex;
 use rust_scrypt::{scrypt, ScryptParams};
+use rustc_serialize::hex::FromHex;
 use test::Bencher;
 
 fn to_bytes<A, T>(slice: &[T]) -> A

src/lib.rs

@@ -61,8 +61,8 @@ pub fn scrypt(passwd: &[u8], salt: &[u8], params: &ScryptParams, output: &mut [u
 mod tests {
     extern crate rustc_serialize;
 
-    use super::*;
     use self::rustc_serialize::hex::{FromHex, ToHex};
+    use super::*;
 
     fn to_bytes<A, T>(slice: &[T]) -> A
     where