-Wclippy::nursery generates use_self when enum derives strum_macros::Display

[Guilherme-Vasconcelos]

Summary

I am using the strum and strum_macros crates, both on version 0.24.0.

When an enum derives strum_macros::Display and clippy is invoked with -Wclippy::nursery (i.e. cargo clippy -- -Wclippy::nursery), a warning is generated telling me to replace the enum's name with Self.

Lint Name

clippy::use-self

Reproducer

I tried this code:

//// on Cargo.toml
[package]
name = "testing"
edition = "2021"
version = "0.0.1"

[dependencies]
strum = "0.24.0"
strum_macros = "0.24.0"

//// on src/main.rs
mod bug;

fn main() {}

//// on src/bug.rs
use strum_macros::Display;

#[allow(dead_code)]
#[derive(Display)]
enum MyTest {
    Testing
}

I saw this happen:

warning: unnecessary structure name repetition
 --> src/bug.rs:5:6
  |
5 | enum MyTest {
  |      ^^^^^^ help: use the applicable keyword: `Self`
  |
  = note: `-W clippy::use-self` implied by `-W clippy::nursery`
  = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#use_self

warning: `testing` (bin "testing") generated 1 warning
    Finished dev [unoptimized + debuginfo] target(s) in 0.00s

enum Self here would not be valid.

Version

rustc 1.61.0 (Arch Linux rust 1:1.61.0-1)
binary: rustc
commit-hash: unknown
commit-date: unknown
host: x86_64-unknown-linux-gnu
release: 1.61.0
LLVM version: 13.0.1

Additional Labels

No response

[giraffate]

It might be a duplicate of #6902.