fix: resolve lint errors from latest nightly

Author: sunng87

src/helpers/block_util.rs

@@ -5,7 +5,7 @@ pub(crate) fn create_block<'rc>(param: &PathAndJson<'rc>) -> BlockContext<'rc> {
     let mut block = BlockContext::new();
 
     if let Some(new_path) = param.context_path() {
-        *block.base_path_mut() = new_path.clone();
+        block.base_path_mut().clone_from(new_path)
     } else {
         // use clone for now
         block.set_base_value(param.value().clone());

src/render.rs

@@ -687,7 +687,7 @@ impl Renderable for Template {
                 }
 
                 if e.template_name.is_none() {
-                    e.template_name = self.name.clone();
+                    e.template_name.clone_from(&self.name);
                 }
 
                 e
@@ -715,7 +715,7 @@ impl Evaluable for Template {
                     }
                 }
 
-                e.template_name = self.name.clone();
+                e.template_name.clone_from(&self.name);
                 e
             })?;
         }

src/template.rs

@@ -536,7 +536,7 @@ impl Template {
     fn remove_previous_whitespace(template_stack: &mut VecDeque<Template>) {
         let t = template_stack.front_mut().unwrap();
         if let Some(RawString(ref mut text)) = t.elements.last_mut() {
-            *text = text.trim_end().to_owned();
+            text.trim_end().to_owned().clone_into(text);
         }
     }
 
@@ -566,9 +566,9 @@ impl Template {
                 // check the last element before current
                 if let Some(RawString(ref mut text)) = t.elements.last_mut() {
                     // trim leading space for standalone statement
-                    *text = text
-                        .trim_end_matches(support::str::whitespace_matcher)
-                        .to_owned();
+                    text.trim_end_matches(support::str::whitespace_matcher)
+                        .to_owned()
+                        .clone_into(text);
                 }
             }