needless_lifetimes suggestion forgets to remove some lifetimes

Summary

clippy leaves in one of lifetimes and thus the code fails to compile

9 - fn f<'a>(PhantomData::<&'a u8>: PhantomData<&'a u8>) {}
9 + fn f(PhantomData::<&'a u8>: PhantomData<&u8>) {}

Reproducer

I tried this code:

#![allow(dead_code)]
use std::marker::PhantomData;

fn f<'a>(PhantomData::<&'a u8>: PhantomData<&'a u8>) {}

fn main() {}

I expected to see this happen:

warning: the following explicit lifetimes could be elided: 'a
 --> src/main.rs:9:1
  |
9 | fn f<'a>(PhantomData::<&'a u8>: PhantomData<&'a u8>) {}
  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  |
  = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
  = note: `#[warn(clippy::needless_lifetimes)]` on by default
help: elide the lifetimes
  |
9 - fn f<'a>(PhantomData::<&'a u8>: PhantomData<&'a u8>) {}
9 + fn f(PhantomData::<&u8>: PhantomData<&u8>) {}

Instead, this happened:

warning: the following explicit lifetimes could be elided: 'a
 --> src/main.rs:9:1
  |
9 | fn f<'a>(PhantomData::<&'a u8>: PhantomData<&'a u8>) {}
  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  |
  = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
  = note: `#[warn(clippy::needless_lifetimes)]` on by default
help: elide the lifetimes
  |
9 - fn f<'a>(PhantomData::<&'a u8>: PhantomData<&'a u8>) {}
9 + fn f(PhantomData::<&'a u8>: PhantomData<&u8>) {}

Version

rustc 1.70.0-nightly (8a73f50d8 2023-03-11)
binary: rustc
commit-hash: 8a73f50d875840b8077b8ec080fa41881d7ce40d
commit-date: 2023-03-11
host: x86_64-unknown-linux-gnu
release: 1.70.0-nightly
LLVM version: 15.0.7

Additional Labels

No response

Start with the needless_lifetimes lint and run the provided PhantomData reproducer to observe the incorrect suggestion. The fix is complete when the suggested replacement removes every 'a lifetime and the resulting Rust code compiles.