apply new rustfmt.toml changes, fix some clippy lints

Signed-off-by: strawberry <strawberry@puppygock.gay>

src/api/server/backfill.rs

@@ -16,7 +16,8 @@ use crate::Ruma;
 /// Retrieves events from before the sender joined the room, if the room's
 /// history visibility allows.
 pub(crate) async fn get_backfill_route(
-	State(services): State<crate::State>, ref body: Ruma<get_backfill::v1::Request>,
+	State(services): State<crate::State>,
+	ref body: Ruma<get_backfill::v1::Request>,
 ) -> Result<get_backfill::v1::Response> {
 	AccessCheck {
 		services: &services,