opt level and no Debug by unwrap (#311)

Cargo.toml

@@ -43,3 +43,4 @@ lto = true # Link Time Optimization usually reduces size of binaries and static
 [profile.release]
 panic = "abort"
 lto = true # Link Time Optimization usually reduces size of binaries and static libraries
+opt-level = "z"

src/ctap/storage.rs

@@ -72,7 +72,7 @@ impl PersistentStore {
         let mut store = PersistentStore {
             store: persistent_store::Store::new(storage).ok().unwrap(),
         };
-        store.init(rng).unwrap();
+        store.init(rng).ok().unwrap();
         store
     }