server: attempt concurrency with graphql::search and fail

notmuch/src/lib.rs

@@ -465,6 +465,8 @@ pub struct Notmuch {
     config_path: Option<PathBuf>,
 }
 
+// TODO: rewrite to use tokio::process::Command and make everything async to see if that helps with
+// concurrency being more parallel.
 impl Notmuch {
     pub fn with_config<P: AsRef<Path>>(config_path: P) -> Notmuch {
         Notmuch {