Async closure is now stable.

src/intermediate/blog_post.rs

@@ -35,6 +35,7 @@ impl BlogPost {
         ) -> Result<BlogPost, CustomError> {
             let post_id = post_dir.strip_prefix(posts_dir)?.as_os_str();
 
+            // Load all the *.org files under the post directory from disk into memory
             let org_files = {
                 let mut ret = Vec::new();
                 let org_files_iter = get_org_files(post_dir).await?;
@@ -43,6 +44,8 @@ impl BlogPost {
                 }
                 ret
             };
+
+            // Parse all the *.org files
             let parsed_org_files = {
                 let mut ret = Vec::new();
                 for (path, contents) in org_files.iter() {