Update rocket to 0.5

src/main.rs

@@ -1,4 +1,3 @@
-#![feature(decl_macro)]
 mod database;
 mod handlebars_util;
 mod routes;
@@ -13,7 +12,8 @@ use rocket_contrib::serve::StaticFiles;
 use rocket_contrib::templates::Template;
 use std::{env, io};
 
-fn main() -> io::Result<()> {
+#[rocket::main]
+async fn main() -> io::Result<()> {
     dotenv().ok();
 
     let db_path = env::var("DB_PATH").expect("DB_PATH not set");
@@ -59,7 +59,7 @@ fn main() -> io::Result<()> {
             ],
         );
 
-    rocket.launch();
+    rocket.launch().await.expect("rocket failed to launch");
 
     Ok(())
 }

src/status_json.rs

@@ -37,8 +37,8 @@ impl StatusJson {
     }
 }
 
-impl<'r> Responder<'r> for StatusJson {
-    fn respond_to(self, req: &Request) -> Result<Response<'r>, Status> {
+impl<'r> Responder<'r, 'static> for StatusJson {
+    fn respond_to(self, req: &Request) -> Result<Response<'static>, Status> {
         if self.status.code >= 400 {
             warn!(
                 "Responding with status {}.\n\