diff --git a/src/ast/printer/mod.rs b/src/ast/printer/mod.rs
index 6346ec7..61875bd 100644
--- a/src/ast/printer/mod.rs
+++ b/src/ast/printer/mod.rs
@@ -566,8 +566,9 @@ where
         for v in stmts {
             self.render_stmt(v)?;
         }
-        if let Some(last_comment_line) = self.comment_group_lines.first() {
-            self.render_missed_comments(*last_comment_line + 1)?;
+        let comment_line = self.comment_group_lines.first().cloned();
+        if let Some(last_comment_line) = comment_line {
+            self.render_missed_comments(last_comment_line + 1)?;
         }
         Ok(())
     }
diff --git a/src/build/mod.rs b/src/build/mod.rs
index 215bfbd..7aae5b8 100644
--- a/src/build/mod.rs
+++ b/src/build/mod.rs
@@ -223,12 +223,11 @@ where
             }
             Err(e) => {
                 let err = simple_error::SimpleError::new(
-                    format!(
+                    &format!(
                         "Error building file: {}\n{}",
                         file.to_string_lossy(),
                         e.as_ref()
-                    )
-                    .as_ref(),
+                    ),
                 );
                 Err(Box::new(err))
             }