Is there a better way to write this?

resolution_error.rs

use http::Error as HttpError;

use std::{fmt, error};

type Result<T> = std::result::Result<T, ResolutionError>;

/// A type of `Error` emitted by `Resolver`
///
/// It contains a description and an optional `HttpError` that might have caused it
#[derive(Debug)]
pub struct ResolutionError {
  desc: &'static str,
  src: Option<HttpError>,
}

impl fmt::Display for ResolutionError {
  fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
    write!(f, "ResolutionError: {}", self.desc)
  }
}

impl error::Error for ResolutionError {
  fn source(&self) -> Option<&(dyn error::Error + 'static)> {
    match &self.src {              //< I find this match especially annoying and puzzling, but I couldn't find a better way
      Some(src) => Some(src),
      None => None
    }
  }
}