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

plume-models/src/migrations.rs

@@ -10,7 +10,7 @@ use std::path::Path;
 #[allow(dead_code)] //variants might not be constructed if not required by current migrations
 enum Action {
     Sql(&'static str),
-    Function(&'static Fn(&Connection, &Path) -> Result<()>),
+    Function(&'static dyn Fn(&Connection, &Path) -> Result<()>),
 }
 
 impl Action {