From 790012ad7767fd38f9aa16cfafeb8459249c082e Mon Sep 17 00:00:00 2001
From: Yuki Okushi <huyuumi.dev@gmail.com>
Date: Mon, 30 Dec 2019 17:02:18 +0900
Subject: [PATCH] Allow unused_extern_crates for now

---
 mini-macro/src/lib.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/mini-macro/src/lib.rs b/mini-macro/src/lib.rs
index 60ffd94e733..92b6f701555 100644
--- a/mini-macro/src/lib.rs
+++ b/mini-macro/src/lib.rs
@@ -1,5 +1,7 @@
 #![feature(proc_macro_quote, proc_macro_hygiene)]
 #![deny(rust_2018_idioms)]
+// FIXME: Remove this attribute once the weird failure is gone.
+#![allow(unused_extern_crates)]
 extern crate proc_macro;
 
 use proc_macro::{quote, TokenStream};