borrowed value does not live long enough

    fn convert_result<'a, T: Deserialize<'a>>(&self, result: Result<Iter<Vec<String>>, RedisError>) -> Result<Vec<T>, RepositoryError> {
        match result {
            Ok(iter) =>
                Ok(iter.flat_map(|s| { s })
                    .collect::<Vec<String>>()
                    .into_iter()
                    .map(|m| serde_json::from_str::<T>(&m).unwrap())
                    .collect()
                ),
            Err(error) => return Err(
                RepositoryError::from(
                    ErrorKind::IO, "Could not retrieve data from redis.",
                )
            )
        }
    }

error[E0597]: `m` does not live long enough
  --> src/infrastructure/domain/repository/commons.rs:26:56
   |
20 |     fn convert_result<'a, T: Deserialize<'a>>(&self, result: Result<Iter<Vec<String>>, RedisError>) -> Result<Vec<T>, RepositoryError> {
   |                       -- lifetime `'a` defined here
...
26 |                     .map(|m| serde_json::from_str::<T>(&m).unwrap())
   |                              --------------------------^^-        - `m` dropped here while still borrowed
   |                              |                         |
   |                              |                         borrowed value does not live long enough
   |                              argument requires that `m` is borrowed for `'a`