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, 1 deletions

diff --git a/rand/src/rngs/mock.rs b/rand/src/rngs/mock.rs
index 3c9a994..b4081da 100644
--- a/rand/src/rngs/mock.rs
+++ b/rand/src/rngs/mock.rs
@@ -39,21 +39,26 @@ impl StepRng {
 }
 
 impl RngCore for StepRng {
+    #[inline]
     fn next_u32(&mut self) -> u32 {
         self.next_u64() as u32
     }
 
+    #[inline]
     fn next_u64(&mut self) -> u64 {
         let result = self.v;
         self.v = self.v.wrapping_add(self.a);
         result
     }
 
+    #[inline]
     fn fill_bytes(&mut self, dest: &mut [u8]) {
         impls::fill_bytes_via_next(self, dest);
     }
 
+    #[inline]
     fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), Error> {
-        Ok(self.fill_bytes(dest))
+        self.fill_bytes(dest);
+        Ok(())
     }
 }