Fix benchmarks

Author: vks

benches/generators.rs

@@ -9,6 +9,8 @@
 #![feature(test)]
 #![allow(non_snake_case)]
 
+extern crate test;
+
 const RAND_BENCH_N: u64 = 1000;
 const BYTES_LEN: usize = 1024;
 

benches/misc.rs

@@ -8,6 +8,8 @@
 
 #![feature(test)]
 
+extern crate test;
+
 const RAND_BENCH_N: u64 = 1000;
 
 use test::Bencher;

benches/seq.rs

@@ -9,6 +9,8 @@
 #![feature(test)]
 #![allow(non_snake_case)]
 
+extern crate test;
+
 use test::Bencher;
 
 use rand::prelude::*;