Fix some warnings

src/logger.rs

@@ -54,11 +54,11 @@ impl ChatMsg for LogMsg {
         (nick, content)
     }
 
-    fn edit(nick: &str, content: &str) -> (Styled, Styled) {
+    fn edit(_nick: &str, _content: &str) -> (Styled, Styled) {
         panic!("log is not editable")
     }
 
-    fn pseudo(nick: &str, content: &str) -> (Styled, Styled) {
+    fn pseudo(_nick: &str, _content: &str) -> (Styled, Styled) {
         panic!("log is not editable")
     }
 }

src/vault.rs

@@ -57,6 +57,7 @@ fn run(mut conn: Connection, mut rx: mpsc::UnboundedReceiver<Request>) {
             }
             Request::Gc(tx) => {
                 let _ = conn.execute_batch("ANALYZE; VACUUM;");
+                drop(tx);
             }
             Request::Euph(r) => r.perform(&mut conn),
         }