From 3f4d23b38a73aaf0d253a64c6220d3ef76495fa5 Mon Sep 17 00:00:00 2001
From: DrPeterVanNostrand <jnz@riseup.net>
Date: Mon, 7 Mar 2022 15:43:48 +0000
Subject: [PATCH] fix: hardcode last byte-unit version that uses Rust 2018

---
 fil-proofs-tooling/Cargo.toml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fil-proofs-tooling/Cargo.toml b/fil-proofs-tooling/Cargo.toml
index 205a9cf5b0..0266312b4e 100644
--- a/fil-proofs-tooling/Cargo.toml
+++ b/fil-proofs-tooling/Cargo.toml
@@ -47,7 +47,8 @@ rayon = "1.3.0"
 flexi_logger = "0.16.1"
 typenum = "1.11.2"
 generic-array = "0.14.4"
-byte-unit = "4.0.9"
+# `byte-unit = 4.0.14` uses Rust edition 2021.
+byte-unit = "=4.0.13"
 fdlimit = "0.2.0"
 dialoguer = "0.8.0"
 structopt = "0.3.12"