Panic when analyzing &fn(&dyn Trait)

[sandyberko]

rust-analyzer panics when encountering a reference to a function pointer that has a &dyn parameter.
I'm using VS Code on Windows.

Reproduction repo:
https://github.com/sandyberko/ra-repro.git

rust-analyzer version: rust-analyzer 0.3.1325-standalone (9ed1829 2022-12-17)

rustc version: rustc 1.66.0 (69f9c33d7 2022-12-12)

relevant settings: N/A

Code:

trait Trait {}
fn foo(x: &fn(&dyn Trait)) {}

Error:

thread 'Worker' panicked at 'unexpected free variable with depth `^0.0` with outer binder ^0', C:\Users\runneradmin\.cargo\registry\src\gb.xjqchip.workers.dev-1ecc6299db9ec823\chalk-ir-0.88.0\src\fold.rs:454:13

Log

Panic context:
> 
version: 0.3.1325-standalone (9ed1829f1 2022-12-17)
request: textDocument/semanticTokens/full SemanticTokensParams {
    work_done_progress_params: WorkDoneProgressParams {
        work_done_token: None,
    },
    partial_result_params: PartialResultParams {
        partial_result_token: None,
    },
    text_document: TextDocumentIdentifier {
        uri: Url {
            scheme: "file",
            cannot_be_a_base: false,
            username: "",
            password: None,
            host: None,
            port: None,
            path: "[redacted]/ra-repro/src/lib.rs",
            query: None,
            fragment: None,
        },
    },
}

thread 'Worker' panicked at 'unexpected free variable with depth `^0.0` with outer binder ^0', C:\Users\runneradmin\.cargo\registry\src\gb.xjqchip.workers.dev-1ecc6299db9ec823\chalk-ir-0.88.0\src\fold.rs:454:13
stack backtrace:
   0: std::panicking::begin_panic_handler
             at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library\std\src\panicking.rs:575
   1: core::panicking::panic_fmt
             at /rustc/69f9c33d71c871fc16ac445211281c6e7a340943/library\core\src\panicking.rs:65
   2: chalk_solve::infer::instantiate::<impl chalk_solve::infer::InferenceTable<I>>::instantiate_binders_existentially
   3: chalk_ir::fold::TypeSuperFoldable::super_fold_with
   4: chalk_ir::_::<impl chalk_ir::fold::TypeFoldable<I> for chalk_ir::DynTy<I>>::try_fold_with
   5: chalk_ir::fold::TypeSuperFoldable::super_fold_with
   6: chalk_ir::fold::TypeSuperFoldable::super_fold_with
   7: <smallvec::SmallVec<A> as core::iter::traits::collect::Extend<<A as smallvec::Array>::Item>>::extend
   8: chalk_ir::fold::boring_impls::<impl chalk_ir::fold::TypeFoldable<I> for chalk_ir::Substitution<I>>::try_fold_with
   9: chalk_ir::fold::TypeSuperFoldable::super_fold_with
  10: <smallvec::SmallVec<A> as core::iter::traits::collect::Extend<<A as smallvec::Array>::Item>>::extend
  11: chalk_ir::fold::boring_impls::<impl chalk_ir::fold::TypeFoldable<I> for chalk_ir::Substitution<I>>::try_fold_with
  12: chalk_ir::_::<impl chalk_ir::fold::TypeFoldable<I> for chalk_ir::WhereClause<I>>::try_fold_with
  13: chalk_ir::_::<impl chalk_ir::fold::TypeFoldable<I> for chalk_ir::DomainGoal<I>>::try_fold_with
  14: chalk_ir::fold::TypeSuperFoldable::super_fold_with
  15: chalk_solve::infer::canonicalize::<impl chalk_solve::infer::InferenceTable<I>>::canonicalize
  16: hir_ty::infer::unify::InferenceTable::canonicalize
  17: hir_ty::infer::unify::InferenceTable::register_obligation_in_env
  18: hir_ty::infer::unify::InferenceTable::normalize_projection_ty
  19: <DB as hir_ty::db::HirDatabase>::normalize_projection
  20: hir_ty::callable_sig_from_fnonce
  21: hir::Type::as_callable
  22: ide::syntax_highlighting::highlight::name_like
  23: ide::syntax_highlighting::highlight::name_like
  24: ide::syntax_highlighting::highlight
  25: ide::syntax_highlighting::highlight
  26: std::panicking::try
  27: rust_analyzer::handlers::handle_semantic_tokens_full
  28: std::panicking::try
  29: <F as threadpool::FnBox>::call_box
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
[Error - 20:17:15] Request textDocument/semanticTokens/full failed.
  Message: request handler panicked: unexpected free variable with depth `^0.0` with outer binder ^0
  Code: -32603