remove trivial warnings

src/header/delays.rs

@@ -176,7 +176,7 @@ mod delay_summing {
         let delay2 = Delay(123);
 
         let expected1 = Delay(165);
-        assert_eq!(expected1, &delay1 + &delay2);
+        assert_eq!(expected1, delay1 + delay2);
 
         let expected2 = Delay(265);
         let delay3 = Delay(100);
@@ -185,7 +185,7 @@ mod delay_summing {
 
     #[test]
     fn works_with_iterator() {
-        let delays = vec![Delay(42), Delay(123), Delay(100)];
+        let delays = [Delay(42), Delay(123), Delay(100)];
         let expected = Delay(265);
 
         assert_eq!(expected, delays.iter().sum());

src/header/filler.rs

@@ -102,7 +102,7 @@ mod test_creating_pseudorandom_bytes {
 
     #[test]
     fn with_1_key_it_generates_filler_of_length_1_times_3_times_security_parameter() {
-        let shared_keys = vec![PublicKey::from(&StaticSecret::random())];
+        let shared_keys = [PublicKey::from(&StaticSecret::random())];
         let routing_keys: Vec<_> = shared_keys
             .iter()
             .map(|&key| keys::RoutingKeys::derive(key))
@@ -114,7 +114,7 @@ mod test_creating_pseudorandom_bytes {
 
     #[test]
     fn with_3_key_it_generates_filler_of_length_3_times_3_times_security_parameter() {
-        let shared_keys = vec![
+        let shared_keys = [
             PublicKey::from(&StaticSecret::random()),
             PublicKey::from(&StaticSecret::random()),
             PublicKey::from(&StaticSecret::random()),

src/header/routing/destination.rs

@@ -76,7 +76,7 @@ impl FinalRoutingInformation {
         // return D || I || PAD
         PaddedFinalRoutingInformation {
             value: std::iter::once(self.flag)
-                .chain(self.version.to_bytes().into_iter())
+                .chain(self.version.to_bytes())
                 .chain(self.destination.as_bytes().iter().cloned())
                 .chain(self.identifier.iter().cloned())
                 .chain(padding.iter().cloned())

src/header/routing/mod.rs

@@ -289,7 +289,7 @@ mod encapsulating_forward_routing_information {
         let delay0 = Delay::new_from_nanos(10);
         let delay1 = Delay::new_from_nanos(20);
         let delay2 = Delay::new_from_nanos(30);
-        let delays = [delay0.clone(), delay1.clone(), delay2].to_vec();
+        let delays = [delay0, delay1, delay2].to_vec();
         let routing_keys = [
             routing_keys_fixture(),
             routing_keys_fixture(),

src/header/routing/nodes.rs

@@ -69,7 +69,7 @@ impl RoutingInformation {
             .chain(self.version.to_bytes().iter().cloned())
             .chain(self.node_address.as_bytes_ref().iter().cloned())
             .chain(self.delay.to_bytes().iter().cloned())
-            .chain(self.header_integrity_mac.into_inner().into_iter())
+            .chain(self.header_integrity_mac.into_inner())
             .chain(self.next_routing_information.iter().cloned())
             .collect()
     }