Fix example by upgrading tide + attempt to newer rust on CI

Author: zhming0

.circleci/config.yml

@@ -2,15 +2,15 @@ version: 2.1
 jobs:
   build:
     docker:
-      - image: circleci/rust:1.44-stretch
+      - image: circleci/rust:1.51-stretch
     steps:
       - checkout
       - run: cargo build
       - run: cargo test
 
   deploy:
     docker:
-      - image: circleci/rust:1.44-stretch
+      - image: circleci/rust:1.51-stretch
     steps:
       - checkout
       - run:

examples/Cargo.toml

@@ -13,7 +13,7 @@ bb8 = "0.4.0"
 bb8-postgres = "0.4.0"
 tokio-postgres = "0.5.1"
 postgres = "0.17.3"
-tide = "0.11.0"
+tide = "0.16.0"
 mockall = "0.7.1"
 
 [[example]]

examples/tide_server.rs

@@ -30,6 +30,7 @@ impl sai::ComponentLifecycle for TideServer {
         self.stop_command_sender = Some(sender);
         self.stop_ack_receiver = Some(ack_receiver);
 
+        #[derive(Clone)]
         struct State {
             foo_controller: Injected<FooController>
         };