internal error: entered unreachable code at src/visitor.rs

[cushionbadak]

Code

trait Trait2 where Self: Trait {
    reuse Trait::{foo, bar};
}

pub trait Iterable {
    fn iter(&self) -> impl '_ + Iterator<Trait2 = Self::Item<'_>>;
}

Meta

rustfmt --version

rustfmt 1.7.0-nightly (da159eb3 2024-05-28)

Error Output

Command: rustfmt

thread 'main' panicked at src/tools/rustfmt/src/visitor.rs:668:18:
internal error: entered unreachable code
stack backtrace:
   0: _rust_begin_unwind
   1: core::panicking::panic_fmt
   2: core::panicking::panic
   3: <rustfmt_nightly::visitor::FmtVisitor>::visit_assoc_item
   4: <rustfmt_nightly::visitor::FmtVisitor>::with_context::<<rustfmt_nightly::visitor::FmtVisitor>::visit_item::{closure#1}>
   5: <rustfmt_nightly::visitor::FmtVisitor>::visit_item
   6: <rustfmt_nightly::visitor::FmtVisitor>::visit_items_with_reordering
   7: <rustfmt_nightly::visitor::FmtVisitor>::format_separate_mod
   8: <rustfmt_nightly::Session<std::io::stdio::Stdout>>::format_input_inner::{closure#0}
   9: rustfmt::format_and_emit_report::<std::io::stdio::Stdout>
  10: rustfmt::execute
  11: rustfmt::main
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

error: the compiler unexpectedly panicked. this is a bug.

note: we would appreciate a bug report: https://github.com/rust-lang/rustfmt/issues/new?labels=bug

note: please make sure that you have updated to the latest nightly

note: please attach the file at `/Volumes/T7/workspace/placeholder_rustexec/0529_others/rustc-ice-2024-05-29T03_40_05-27732.txt` to your bug report

query stack during panic:
end of query stack

[cushionbadak]

It's dup. of #6043