Cleaning up dependencies (#125)

* cargo update
* Update to latest ctrlc crate
* Update vergen
* Update to latest pretty_assertions
* Update log
* Update parking_lot
* Update hex-rustc

polkadot/test-parachains/adder/collator/src/main.rs

@@ -114,11 +114,11 @@ fn main() {
 	let (exit_send, exit) = exit_future::signal();
 
 	let exit_send_cell = RefCell::new(Some(exit_send));
-	ctrlc::CtrlC::set_handler(move || {
+	ctrlc::set_handler(move || {
 		if let Some(exit_send) = exit_send_cell.try_borrow_mut().expect("signal handler not reentrant; qed").take() {
 			exit_send.fire();
 		}
-	});
+	}).expect("Errror setting up ctrl-c handler");
 
 	let context = AdderContext {
 		db: Arc::new(Mutex::new(HashMap::new())),