matrix_sdk_crypto: Appease clippy

matrix_sdk_base/src/models/room.rs

@@ -1047,7 +1047,7 @@ impl Room {
         }
 
         if max_power > int!(0) {
-            // `js_int::Int` can overflowed when math is done in `js_int::Int`s
+            // `js_int::Int` can overflow when math is done in `js_int::Int`s
             // use i64 to avoid this
             let normalized = {
                 let pl: i64 = member.power_level.unwrap_or_default().into();

matrix_sdk_crypto/src/machine.rs

@@ -2170,16 +2170,14 @@ pub(crate) mod test {
 
         let mut event = alice
             .outgoing_to_device_requests()
-            .iter()
-            .next()
+            .first()
             .map(|r| outgoing_request_to_event(alice.user_id(), r))
             .unwrap();
         bob.handle_verification_event(&mut event).await;
 
         let mut event = bob
             .outgoing_to_device_requests()
-            .iter()
-            .next()
+            .first()
             .map(|r| outgoing_request_to_event(bob.user_id(), r))
             .unwrap();
         alice.handle_verification_event(&mut event).await;