panic downcast_ref Any

gistfile1.txt

    /*                                                                                                                                                
    match server_thread.join() {                                                                                                                      
        Ok(_) => panic!("should not return w/o panic"),                                                                                               
        Err(e) => assert_eq!(e.downcast_ref::<&str>(), Some("COMPLETE").as_ref()),                                                                    
        //panic!("err.. {:?}", e),                                                                                                                    
    } */