Switch to 2021 edition

Author: alex

openssl-errors/Cargo.toml

@@ -2,7 +2,7 @@
 name = "openssl-errors"
 version = "0.2.0"
 authors = ["Steven Fackler <[email protected]>"]
-edition = "2018"
+edition = "2021"
 license = "MIT OR Apache-2.0"
 description = "Custom error library support for the openssl crate."
 repository = "https://github.com/sfackler/rust-openssl"

openssl-macros/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "openssl-macros"
 version = "0.1.1"
-edition = "2018"
+edition = "2021"
 license = "MIT OR Apache-2.0"
 description = "Internal macros used by the openssl crate."
 repository = "https://github.com/sfackler/rust-openssl"

openssl-sys/Cargo.toml

@@ -12,7 +12,7 @@ readme = "README.md"
 categories = ["cryptography", "external-ffi-bindings"]
 links = "openssl"
 build = "build/main.rs"
-edition = "2018"
+edition = "2021"
 rust-version = "1.63.0"
 
 [features]

openssl/Cargo.toml

@@ -8,7 +8,7 @@ repository = "https://github.com/sfackler/rust-openssl"
 readme = "README.md"
 keywords = ["crypto", "tls", "ssl", "dtls"]
 categories = ["cryptography", "api-bindings"]
-edition = "2018"
+edition = "2021"
 rust-version = "1.63.0"
 
 # these are deprecated and don't do anything anymore