Update compiler (#725)

* update compiler to recent nightly

* cargo fmt

* fix clippy

but ructe code is still complaining

* update circleci and rocket_csrf

* fix last clippy problems

* cargo fmt

* fix build issue

was caused be improper handling of recursive template (comment) by old ructe, which is fixed on newer version

src/main.rs

@@ -307,21 +307,13 @@ Then try to restart Plume
                     rocket::http::Method::Post,
                 )
                 .add_exceptions(vec![
-                    (
-                        "/inbox".to_owned(),
-                        "/inbox".to_owned(),
-                        rocket::http::Method::Post,
-                    ),
+                    ("/inbox".to_owned(), "/inbox".to_owned(), None),
                     (
                         "/@/<name>/inbox".to_owned(),
                         "/@/<name>/inbox".to_owned(),
-                        rocket::http::Method::Post,
-                    ),
-                    (
-                        "/api/<path..>".to_owned(),
-                        "/api/<path..>".to_owned(),
-                        rocket::http::Method::Post,
+                        None,
                     ),
+                    ("/api/<path..>".to_owned(), "/api/<path..>".to_owned(), None),
                 ])
                 .finalize()
                 .expect("main: csrf fairing creation error"),