Update to Rust 2021 and explicitly set MSRVs

Extracted from: 16a0e43f2d
2022-09-02 11:39:21 -06:00 · 2022-09-02 11:39:21 -06:00 · 8d56418bb6
parent d4ffb65baf
commit 8d56418bb6
1 changed files with 2 additions and 1 deletions
--- a/Cargo.toml
+++ b/Cargo.toml
@ -10,7 +10,8 @@ homepage = "https://github.com/zcash/librustzcash"
 repository = "https://github.com/zcash/librustzcash"
 readme = "README.md"
 license = "MIT OR Apache-2.0"
-edition = "2018"
+edition = "2021"
+rust-version = "1.56.1"
 categories = ["cryptography::cryptocurrencies"]

 [package.metadata.docs.rs]