Remove serde_derive https://github.com/serde-rs/serde/issues/1441#issuecomment-445481084

todo/Cargo.toml

@@ -13,8 +13,7 @@ dotenv = "0.13.0"
 env_logger = "0.5.10"
 futures = "0.3.1"
 log = "0.4.3"
-serde = "1.0.69"
-serde_derive = "1.0.69"
+serde = { version = "1.0.69", features = ["derive"] }
 serde_json = "1.0.22"
 tera = "1.0"
 

todo/src/api.rs

@@ -2,6 +2,7 @@ use actix_files::NamedFile;
 use actix_session::Session;
 use actix_web::middleware::errhandlers::ErrorHandlerResponse;
 use actix_web::{dev, error, http, web, Error, HttpResponse, Result};
+use serde::Deserialize;
 use tera::{Context, Tera};
 
 use crate::db;

todo/src/main.rs

@@ -2,8 +2,6 @@
 extern crate diesel;
 #[macro_use]
 extern crate log;
-#[macro_use]
-extern crate serde_derive;
 
 use std::{env, io};
 

todo/src/model.rs

@@ -1,6 +1,7 @@
 use diesel;
 use diesel::pg::PgConnection;
 use diesel::prelude::*;
+use serde::Serialize;
 
 use crate::schema::{
     tasks,

todo/src/session.rs

@@ -1,5 +1,6 @@
 use actix_session::Session;
 use actix_web::error::Result;
+use serde::{Deserialize, Serialize};
 
 const FLASH_KEY: &str = "flash";