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, 7 insertions, 5 deletions

diff --git a/rand/rand_hc/src/hc128.rs b/rand/rand_hc/src/hc128.rs
index d1dadcc..a320f48 100644
--- a/rand/rand_hc/src/hc128.rs
+++ b/rand/rand_hc/src/hc128.rs
@@ -63,27 +63,26 @@ const SEED_WORDS: usize = 8; // 128 bit key followed by 128 bit iv
 ///
 /// [^5]: Internet Engineering Task Force (February 2015),
 ///       ["Prohibiting RC4 Cipher Suites"](https://tools.ietf.org/html/rfc7465).
-///
-/// [`BlockRng`]: ../rand_core/block/struct.BlockRng.html
-/// [`RngCore`]: ../rand_core/trait.RngCore.html
 #[derive(Clone, Debug)]
 pub struct Hc128Rng(BlockRng<Hc128Core>);
 
 impl RngCore for Hc128Rng {
-    #[inline(always)]
+    #[inline]
     fn next_u32(&mut self) -> u32 {
         self.0.next_u32()
     }
 
-    #[inline(always)]
+    #[inline]
     fn next_u64(&mut self) -> u64 {
         self.0.next_u64()
     }
 
+    #[inline]
     fn fill_bytes(&mut self, dest: &mut [u8]) {
         self.0.fill_bytes(dest)
     }
 
+    #[inline]
     fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Error> {
         self.0.try_fill_bytes(dest)
     }
@@ -92,10 +91,12 @@ impl RngCore for Hc128Rng {
 impl SeedableRng for Hc128Rng {
     type Seed = <Hc128Core as SeedableRng>::Seed;
 
+    #[inline]
     fn from_seed(seed: Self::Seed) -> Self {
         Hc128Rng(BlockRng::<Hc128Core>::from_seed(seed))
     }
 
+    #[inline]
     fn from_rng<R: RngCore>(rng: R) -> Result<Self, Error> {
         BlockRng::<Hc128Core>::from_rng(rng).map(Hc128Rng)
     }
@@ -271,6 +272,7 @@ impl Hc128Core {
     // Initialize an HC-128 random number generator. The seed has to be
     // 256 bits in length (`[u32; 8]`), matching the 128 bit `key` followed by
     // 128 bit `iv` when HC-128 where to be used as a stream cipher.
+    #[inline(always)]   // single use: SeedableRng::from_seed
     fn init(seed: [u32; SEED_WORDS]) -> Self {
         #[inline]
         fn f1(x: u32) -> u32 {