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, 5 insertions, 15 deletions

diff --git a/nitrokey/src/lib.rs b/nitrokey/src/lib.rs
index a4402c5..059792d 100644
--- a/nitrokey/src/lib.rs
+++ b/nitrokey/src/lib.rs
@@ -243,14 +243,12 @@ impl Manager {
     ///
     /// fn do_something(device: DeviceWrapper) {}
     ///
-    /// # fn main() -> Result<(), nitrokey::Error> {
     /// let mut manager = nitrokey::take()?;
     /// match manager.connect() {
     ///     Ok(device) => do_something(device),
     ///     Err(err) => println!("Could not connect to a Nitrokey: {}", err),
     /// }
-    /// #     Ok(())
-    /// # }
+    /// # Ok::<(), nitrokey::Error>(())
     /// ```
     ///
     /// [`NotConnected`]: enum.CommunicationError.html#variant.NotConnected
@@ -276,13 +274,11 @@ impl Manager {
     ///
     /// fn do_something(device: DeviceWrapper) {}
     ///
-    /// # fn main() -> Result<(), nitrokey::Error> {
     /// match nitrokey::take()?.connect_model(Model::Pro) {
     ///     Ok(device) => do_something(device),
     ///     Err(err) => println!("Could not connect to a Nitrokey Pro: {}", err),
     /// }
-    /// #     Ok(())
-    /// # }
+    /// # Ok::<(), nitrokey::Error>(())
     /// ```
     ///
     /// [`NotConnected`]: enum.CommunicationError.html#variant.NotConnected
@@ -307,13 +303,11 @@ impl Manager {
     ///
     /// fn use_pro(device: Pro) {}
     ///
-    /// # fn main() -> Result<(), nitrokey::Error> {
     /// match nitrokey::take()?.connect_pro() {
     ///     Ok(device) => use_pro(device),
     ///     Err(err) => println!("Could not connect to the Nitrokey Pro: {}", err),
     /// }
-    /// #     Ok(())
-    /// # }
+    /// # Ok::<(), nitrokey::Error>(())
     /// ```
     ///
     /// [`NotConnected`]: enum.CommunicationError.html#variant.NotConnected
@@ -338,13 +332,11 @@ impl Manager {
     ///
     /// fn use_storage(device: Storage) {}
     ///
-    /// # fn main() -> Result<(), nitrokey::Error> {
     /// match nitrokey::take()?.connect_storage() {
     ///     Ok(device) => use_storage(device),
     ///     Err(err) => println!("Could not connect to the Nitrokey Storage: {}", err),
     /// }
-    /// #     Ok(())
-    /// # }
+    /// # Ok::<(), nitrokey::Error>(())
     /// ```
     ///
     /// [`NotConnected`]: enum.CommunicationError.html#variant.NotConnected
@@ -453,11 +445,9 @@ pub fn set_log_level(level: LogLevel) {
 /// # Example
 ///
 /// ```
-/// # fn main() -> Result<(), nitrokey::Error> {
 /// let version = nitrokey::get_library_version()?;
 /// println!("Using libnitrokey {}", version.git);
-/// #    Ok(())
-/// # }
+/// # Ok::<(), nitrokey::Error>(())
 /// ```
 ///
 /// [`Utf8Error`]: enum.Error.html#variant.Utf8Error