Bump MSRV to Rust 1.71

.github/workflows/ci.yml

@@ -3,8 +3,8 @@ name: CI
 on: [push, pull_request]
 
 env:
- rust_min: 1.70.0
- rust_nightly: nightly-2023-05-31
+ rust_min: 1.71.0
+ rust_nightly: nightly-2023-07-12
 
 jobs:
  test:

README.md

@@ -104,7 +104,7 @@ tokio = { version = "1.21.2", features = ["macros", "rt-multi-thread"] }
 
 ## MSRV Policy
 
-Serenity's minimum supported Rust version (MSRV) is Rust 1.70.
+Serenity's minimum supported Rust version (MSRV) is Rust 1.71.
 
 We opt to keep MSRV stable on the `current` branch. This means it will remain
 unchanged between minor releases. Occasionally, dependencies may violate SemVer
@@ -251,5 +251,5 @@ a Rust-native cloud development platform that allows deploying Serenity bots for
 [repo:andesite]: https://github.com/natanbc/andesite
 [repo:lavaplayer]: https://github.com/sedmelluq/lavaplayer
 [logo]: https://raw.githubusercontent.com/serenity-rs/serenity/current/logo.png
-[rust-version-badge]: https://img.shields.io/badge/rust-1.70.0+-93450a.svg?style=flat-square
-[rust-version-link]: https://blog.rust-lang.org/2023/06/01/Rust-1.70.0.html
+[rust-version-badge]: https://img.shields.io/badge/rust-1.71.0+-93450a.svg?style=flat-square
+[rust-version-link]: https://blog.rust-lang.org/2023/07/13/Rust-1.71.0.html

command_attr/src/lib.rs

@@ -684,7 +684,6 @@ pub fn group(attr: TokenStream, input: TokenStream) -> TokenStream {
  sub_groups,
  } = options;
 
- #[allow(clippy::redundant_clone)] // currently a false-positive on 1.70
  let cooked = group.cooked.clone();
 
  let n = group.name.with_suffix(GROUP);
@@ -781,7 +780,6 @@ pub fn check(_attr: TokenStream, input: TokenStream) -> TokenStream {
  create_return_type_validation(&mut fun, &res);
 
  let n = fun.name.clone();
- #[allow(clippy::redundant_clone)] // currently a false-positive on 1.70
  let n2 = name.clone();
  let visibility = fun.visibility;
  let name = if name == "<fn>" { fun.name.clone() } else { Ident::new(&name, Span::call_site()) };