error: unused variable: `peer`
   --> src/api/legacy.rs:515:9
    |
515 |     let peer: String = request
    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_peer`

error: unused variable: `payload`
   --> src/api/legacy.rs:513:5
    |
513 |     payload: Multipart,
    |     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_payload`

error: unused variable: `ss`
   --> src/api/legacy.rs:511:5
    |
511 |     ss: web::Data<StreamingDataService<UpgradeAction>>,
    |     ^^ help: if this is intentional, prefix it with an underscore: `_ss`
    |
    = note: `-D unused-variables` implied by `-D warnings`

error: unused import: `middleware::Logger`
  --> src/main.rs:33:5
   |
33 |     middleware::Logger,
   |     ^^^^^^^^^^^^^^^^^^

error: unused import: `post`
  --> src/api/legacy.rs:26:22
   |
26 | use actix_web::{get, post, web, HttpRequest, Responder};
   |                      ^^^^

error: unused import: `actix_web::dev::Payload`
  --> src/api/legacy.rs:23:5
   |
23 | use actix_web::dev::Payload;
   |     ^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: `-D unused-imports` implied by `-D warnings`

error[E0554]: `#![feature]` may not be used on the stable release channel
  --> src/main.rs:14:1
   |
14 | #![feature(async_fn_in_trait)]
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^