sim: Migrate to Rust 2021 edition
Change the edition in the various Cargo.toml to 2021. There are no
changes to the code needed for this. This will require Rust 1.56 in
order to build.
Signed-off-by: David Brown <david.brown@linaro.org>
diff --git a/sim/mcuboot-sys/Cargo.toml b/sim/mcuboot-sys/Cargo.toml
index 1f6b81c..6d21bf5 100644
--- a/sim/mcuboot-sys/Cargo.toml
+++ b/sim/mcuboot-sys/Cargo.toml
@@ -5,7 +5,7 @@
description = "A simple wrapper around the mcuboot code."
build = "build.rs"
publish = false
-edition = "2018"
+edition = "2021"
[features]
# By default, build with simplistic signature verification.