clippy: fix errors found locally

We should investigate why some errors were not found in CI tasks,
though.

Author: bnjbvr

bindings/matrix-sdk-ffi/src/client_builder.rs

@@ -425,7 +425,7 @@ impl ClientBuilder {
                     random_dir
                         .to_str()
                         .expect("The base path and the uuid both are valid UTF-8 strings")
-                        .to_string(),
+                        .to_owned(),
                 );
 
                 Some((base_directory, random_dir))

crates/matrix-sdk-base/src/sliding_sync.rs

@@ -1296,11 +1296,11 @@ mod tests {
         room.heroes = Some(vec![
             assign!(v4::SlidingSyncRoomHero::default(), {
                 user_id: Some(gordon),
-                name: Some("Gordon".to_string()),
+                name: Some("Gordon".to_owned()),
             }),
             assign!(v4::SlidingSyncRoomHero::default(), {
                 user_id: Some(alice),
-                name: Some("Alice".to_string()),
+                name: Some("Alice".to_owned()),
             }),
         ]);
         let response = response_with_room(room_id, room).await;
@@ -1315,7 +1315,7 @@ mod tests {
         // And heroes are part of the summary.
         assert_eq!(
             client_room.clone_info().summary.heroes(),
-            &["@gordon:e.uk".to_string(), "@alice:e.uk".to_string()]
+            &["@gordon:e.uk".to_owned(), "@alice:e.uk".to_owned()]
         );
     }
 

crates/matrix-sdk-ui/tests/integration/sliding_sync.rs

@@ -122,7 +122,10 @@ macro_rules! sliding_sync_then_assert_request_and_fake_response {
                         &json!({ $( $request_json )* }),
                         $crate::sliding_sync_then_assert_request_and_fake_response!(@assertion_config $sign)
                     ) {
-                        dbg!(json_value);
+                        #[allow(clippy::dbg_macro)]
+                        {
+                            dbg!(json_value);
+                        }
                         panic!("{error}");
                     }