feat:alpha version change

Author: chuntaojun

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 edition = "2021"
 name = "polaris-rust"
-version = "0.2.0"
+version = "0.2.0-alpha.0"
 
 authors = ["polaris-contrib", "houseme <[email protected]>", "liaochuntao <[email protected]>"]
 categories = ["network-programming", "development-tools"]

src/core/plugin/plugins.rs

@@ -188,6 +188,7 @@ impl Extensions {
     }
 }
 
+#[derive(Default)]
 pub struct PluginContainer {
     connectors: HashMap<String, fn(InitConnectorOption) -> Box<dyn Connector>>,
     routers: HashMap<String, fn(&Configuration) -> Box<dyn ServiceRouter>>,
@@ -197,19 +198,6 @@ pub struct PluginContainer {
     load_balancers: HashMap<String, fn() -> Box<dyn LoadBalancer>>,
 }
 
-impl Default for PluginContainer {
-    fn default() -> Self {
-        
-
-        Self {
-            connectors: Default::default(),
-            routers: Default::default(),
-            caches: Default::default(),
-            discover_filters: Default::default(),
-            load_balancers: Default::default(),
-        }
-    }
-}
 
 impl PluginContainer {
     pub fn register_all_plugin(&mut self) {