Start moving to Rocket 0.5.0

src/util/mod.rs

@@ -1,2 +1,3 @@
 pub mod result;
 pub mod variables;
+pub mod ratelimit;

src/util/ratelimit.rs

@@ -0,0 +1,9 @@
+use rocket_governor::{Method, Quota, RocketGovernable, RocketGovernor};
+
+pub struct RateLimitGuard;
+
+impl<'r> RocketGovernable<'r> for RateLimitGuard {
+    fn quota(_method: Method, _route_name: &str) -> Quota {
+        Quota::per_second(Self::nonzero(1u32))
+    }
+}