From a80e801e932d43ede3225b1197f5dc4f0679148d Mon Sep 17 00:00:00 2001
From: Pierre Krieger <pierre.krieger1708@gmail.com>
Date: Sat, 30 May 2020 15:19:08 +0200
Subject: [PATCH] Pin async-std to <1.6 (#6193)

---
 substrate/utils/prometheus/Cargo.toml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/substrate/utils/prometheus/Cargo.toml b/substrate/utils/prometheus/Cargo.toml
index d1f192f7b5..edb0d2eef6 100644
--- a/substrate/utils/prometheus/Cargo.toml
+++ b/substrate/utils/prometheus/Cargo.toml
@@ -18,6 +18,7 @@ futures-util = { version = "0.3.1", default-features = false, features = ["io"]
 derive_more = "0.99"
 
 [target.'cfg(not(target_os = "unknown"))'.dependencies]
-async-std = { version = "1.0.1", features = ["unstable"] }
+# async-std is temporarily pinned to <1.6 because version 1.6.0 is buggy
+async-std = { version = "1.0.1, <1.6", features = ["unstable"] }
 hyper = { version = "0.13.1", default-features = false, features = ["stream"] }
 tokio = "0.2"