conn: sqlite::open(filename).map_err(|e| DbError::open(filename, e))?,
};
let ms = MAX_WAIT.as_millis().try_into().unwrap();
debug_assert!(MAX_WAIT.as_millis() < usize::MAX as u128); // safe conversion
let ms = MAX_WAIT.as_millis() as usize;
trace!("set busy timeout to {ms} milliseconds");
db.conn
.set_busy_timeout(ms)