(Rust) Mismatched brackets in complex attribute

[notriddle]

Describe the issue On an attribute with nested brackets, the ending brackets aren't highlighted the same as the starting brackets.

Which language seems to have the issue? Rust

Are you using highlight or highlightAuto? Discourse seems to use highlight.

Sample Code to Reproduce

Expected behavior

#[derive(Parser)]
pub struct Arg {
  #[arg(short, long, default_values_t = [66,77])] // here, the brackets (don't) seem mismatched.
  pub(crate) arg1: Vec<u32>
}

GitHub highlights this correctly, but highlight.js doesn't.

Additional context

https://users.rust-lang.org/t/a-display-error-of-the-forum/109255

https://meta.discourse.org/t/bad-rust-syntax-highlighting/302236