server: migrate all use of log to tracing

server/src/graphql.rs

@@ -9,11 +9,10 @@ use async_graphql::{
 use cacher::FilesystemCacher;
 use futures::stream;
 use letterbox_notmuch::Notmuch;
-use log::info;
 use serde::{Deserialize, Serialize};
 use sqlx::postgres::PgPool;
 use tokio::join;
-use tracing::instrument;
+use tracing::{info, instrument};
 
 #[cfg(feature = "tantivy")]
 use crate::tantivy::TantivyConnection;