Update nitrokey crate to 0.4.0

This change finally updates the version of the nitrokey crate that we
consume to 0.4.0. Along with that we update rand_core, one of its
dependencies, to 0.5.1. Further more we add cfg-if in version 0.1.10 and
getrandom in version 0.1.13, both of which are now new (non-development)
dependencies.

Import subrepo nitrokey/:nitrokey at e81057037e9b4f370b64c0a030a725bc6bdfb870
Import subrepo cfg-if/:cfg-if at 4484a6faf816ff8058088ad857b0c6bb2f4b02b2
Import subrepo getrandom/:getrandom at d661aa7e1b8cc80b47dabe3d2135b3b47d2858af
Import subrepo rand/:rand at d877ed528248b52d947e0484364a4e1ae59ca502

1 files changed, 6 insertions, 3 deletions

diff --git a/rand/benches/seq.rs b/rand/benches/seq.rs
index 0ca3398..4c671b8 100644
--- a/rand/benches/seq.rs
+++ b/rand/benches/seq.rs
@@ -10,7 +10,6 @@
 #![allow(non_snake_case)]
 
 extern crate test;
-extern crate rand;
 
 use test::Bencher;
 
@@ -18,6 +17,10 @@ use rand::prelude::*;
 use rand::seq::*;
 use std::mem::size_of;
 
+// We force use of 32-bit RNG since seq code is optimised for use with 32-bit
+// generators on all platforms.
+use rand_pcg::Pcg32 as SmallRng;
+
 const RAND_BENCH_N: u64 = 1000;
 
 #[bench]
@@ -44,7 +47,7 @@ fn seq_slice_choose_1_of_1000(b: &mut Bencher) {
         }
         s
     });
-    b.bytes = size_of::<usize>() as u64 * ::RAND_BENCH_N;
+    b.bytes = size_of::<usize>() as u64 * crate::RAND_BENCH_N;
 }
 
 macro_rules! seq_slice_choose_multiple {
@@ -86,7 +89,7 @@ fn seq_iter_choose_from_1000(b: &mut Bencher) {
         }
         s
     });
-    b.bytes = size_of::<usize>() as u64 * ::RAND_BENCH_N;
+    b.bytes = size_of::<usize>() as u64 * crate::RAND_BENCH_N;
 }
 
 #[derive(Clone)]