Remove remaining warnings.

src/db/mod.rs

@@ -1,7 +1,6 @@
 use async_trait::async_trait;
 use errors::DataError;
 use std::collections::{HashMap, HashSet};
-use std::str::FromStr;
 
 use crate::models::RoomInfo;
 

src/db/sqlite/migrator/migrations/V4__room_events.rs

@@ -1,5 +1,6 @@
 use barrel::backend::Sqlite;
-use barrel::{types, types::Type, Migration};
+use barrel::{types, Migration};
+
 pub fn migration() -> String {
     let mut m = Migration::new();
 

src/db/sqlite/migrator/migrations/V5__room_users.rs

@@ -1,5 +1,5 @@
 use barrel::backend::Sqlite;
-use barrel::{types, types::Type, Migration};
+use barrel::{types, Migration};
 
 pub fn migration() -> String {
     let mut m = Migration::new();

src/db/sqlite/state.rs

@@ -35,7 +35,6 @@ impl DbState for Database {
 
 #[cfg(test)]
 mod tests {
-    use super::*;
     use crate::db::sqlite::Database;
     use crate::db::DbState;
 

src/db/sqlite/variables.rs

@@ -3,11 +3,6 @@ use crate::db::{errors::DataError, Variables};
 use async_trait::async_trait;
 use std::collections::HashMap;
 
-struct UserVariableRow {
-    key: String,
-    value: i32,
-}
-
 #[async_trait]
 impl Variables for Database {
     async fn get_user_variables(

src/logic.rs

@@ -1,9 +1,8 @@
-use crate::db::errors::DataError;
 use crate::db::Rooms;
 use crate::error::BotError;
 use crate::matrix;
 use crate::models::RoomInfo;
-use futures::stream::{self, StreamExt, TryStreamExt};
+use futures::stream::{self, StreamExt};
 use matrix_sdk::{self, identifiers::RoomId, Client};
 
 /// Record the information about a room, including users in it.