Does not live enough error

[shishamo]

Hi people,

I have a borrowing compile error.
Do you have any idea of what is going wrong?

Thank you~

use actix_web::web;
use serde::Deserialize;

use std::str;

#[derive(Debug, Deserialize, Clone)]
pub struct Params {
    q: String,
}

pub fn parse<'a, T>(query: &'a str) -> Result<T, std::io::Error>
where
    T: Deserialize<'a>,
{
    let params = web::Query::<Params>::from_query(query).unwrap();

    let base64_buf = base64::decode(&params.q).unwrap();

    let to_string = str::from_utf8(&base64_buf).unwrap();  // ERROR => base64_buf does not live enough borrowed value does not live long enough

    let file_ref: T = serde_json::from_str(to_string).unwrap();

    Ok(file_ref)
}

[shishamo]

It works after changing T: Deserialize<'a>, by T: DeserializeOwned,.
Used serde::de::DeserializeOwned