crates/hir-ty/src/next_solver/mapping.rs:1256:22: internal error: entered unreachable code

[bjorn3]

rust-analyzer version: rust-analyzer version: 0.4.2594-standalone [/home/gh-bjorn3/.vscode-server/extensions/rust-lang.rust-analyzer-0.4.2594-linux-arm64/server/rust-analyzer]

rustc version: rustc 1.90.0-beta.1 (788da80fc 2025-08-04)

editor or extension: VSCode

relevant settings: Mostly default ./x.py setup

repository link (if public, optional): https://github.com/rust-lang/rust/tree/4356e83c77cb28113411fb8e2219127f708095b5

code snippet to reproduce:
Run go to references on the kind field of CompiledModule in compiler/rustc_codegen_ssa/src/lib.rs

thread 'Worker5' panicked at crates/hir-ty/src/next_solver/mapping.rs:1256:22:
internal error: entered unreachable code
stack backtrace:
   0: __rustc::rust_begin_unwind
   1: core::panicking::panic_fmt
   2: core::panicking::panic
   3: hir_ty::next_solver::mapping::convert_ty_for_result
   4: hir_ty::next_solver::mapping::convert_ty_for_result
   5: hir_ty::traits::next_trait_solve
   6: hir_ty::traits::trait_solve_query
   7: hir_ty::infer::unify::InferenceTable::register_obligation_in_env
   8: hir_ty::infer::unify::InferenceTable::normalize_projection_ty
   9: <hir_ty::fold_tys_and_consts::TyFolder<F> as chalk_ir::fold::TypeFolder<hir_ty::interner::Interner>>::fold_ty
  10: hir_ty::infer::unify::InferenceTable::normalize_associated_types_in
  11: hir_ty::infer::expr::<impl hir_ty::infer::InferenceContext>::check_method_call
  12: hir_ty::infer::expr::<impl hir_ty::infer::InferenceContext>::infer_expr_inner::{{closure}}
  13: hir_ty::infer::expr::<impl hir_ty::infer::InferenceContext>::infer_expr_inner
  14: hir_ty::infer::expr::<impl hir_ty::infer::InferenceContext>::infer_expr_coerce
  15: hir_ty::infer::expr::<impl hir_ty::infer::InferenceContext>::infer_block
  16: hir_ty::infer::expr::<impl hir_ty::infer::InferenceContext>::infer_expr_inner::{{closure}}
  17: hir_ty::infer::expr::<impl hir_ty::infer::InferenceContext>::infer_expr_inner
  18: hir_ty::infer::expr::<impl hir_ty::infer::InferenceContext>::infer_expr_inner::{{closure}}
  19: hir_ty::infer::expr::<impl hir_ty::infer::InferenceContext>::infer_expr_inner
  20: hir_ty::infer::expr::<impl hir_ty::infer::InferenceContext>::infer_expr_coerce
  21: hir_ty::infer::expr::<impl hir_ty::infer::InferenceContext>::infer_block
  22: hir_ty::infer::expr::<impl hir_ty::infer::InferenceContext>::infer_expr_inner::{{closure}}
  23: hir_ty::infer::expr::<impl hir_ty::infer::InferenceContext>::infer_expr_inner
  24: hir_ty::infer::expr::<impl hir_ty::infer::InferenceContext>::infer_expr_coerce
  25: hir_ty::infer::expr::<impl hir_ty::infer::InferenceContext>::infer_block
  26: hir_ty::infer::expr::<impl hir_ty::infer::InferenceContext>::infer_expr_inner::{{closure}}
  27: hir_ty::infer::expr::<impl hir_ty::infer::InferenceContext>::infer_expr_inner
  28: hir_ty::infer::expr::<impl hir_ty::infer::InferenceContext>::infer_expr_coerce
  29: hir_ty::infer::expr::<impl hir_ty::infer::InferenceContext>::infer_block
  30: hir_ty::infer::expr::<impl hir_ty::infer::InferenceContext>::infer_expr_inner::{{closure}}
  31: hir_ty::infer::expr::<impl hir_ty::infer::InferenceContext>::infer_expr_inner
  32: hir_ty::infer::expr::<impl hir_ty::infer::InferenceContext>::infer_expr_coerce
  33: hir_ty::infer::expr::<impl hir_ty::infer::InferenceContext>::infer_block
  34: hir_ty::infer::expr::<impl hir_ty::infer::InferenceContext>::infer_expr_inner::{{closure}}
  35: hir_ty::infer::expr::<impl hir_ty::infer::InferenceContext>::infer_expr_inner
  36: hir_ty::infer::expr::<impl hir_ty::infer::InferenceContext>::infer_return
  37: hir_ty::infer::infer_query::{{closure}}
  38: scoped_tls::ScopedKey<T>::set
  39: salsa::function::execute::<impl salsa::function::IngredientImpl<C>>::execute
  40: salsa::function::fetch::<impl salsa::function::IngredientImpl<C>>::fetch_cold_with_retry
  41: salsa::function::fetch::<impl salsa::function::IngredientImpl<C>>::fetch
  42: std::thread::local::LocalKey<T>::with
  43: <DB as hir_ty::db::HirDatabase>::infer
  44: hir::semantics::SemanticsImpl::analyze_impl
  45: hir::semantics::SemanticsImpl::resolve_bind_pat_to_const
  46: ide_db::defs::NameClass::classify
  47: ide_db::search::FindUsages::search
  48: ide_db::search::FindUsages::all
  49: <alloc::vec::into_iter::IntoIter<T,A> as core::iter::traits::iterator::Iterator>::fold
  50: <core::iter::adapters::map::Map<I,F> as core::iter::traits::iterator::Iterator>::fold
  51: alloc::vec::in_place_collect::<impl alloc::vec::spec_from_iter::SpecFromIter<T,I> for alloc::vec::Vec<T>>::from_iter
  52: ide::references::find_all_refs
  53: salsa::cancelled::Cancelled::catch
  54: std::thread::local::LocalKey<T>::with
  55: ide::Analysis::find_all_refs
  56: rust_analyzer::handlers::request::handle_references
  57: core::ops::function::FnOnce::call_once{{vtable.shim}}
  58: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
query stacktrace:
   0: infer_shim(Id(33cbe6)) -> (R20407, Durability::LOW)
             at crates/hir-ty/src/db.rs:30

additional context:
   0: 
version: 0.4.2594-standalone
request: textDocument/references ReferenceParams {
    text_document_position: TextDocumentPositionParams {
        text_document: TextDocumentIdentifier {
            uri: Url {
                scheme: "file",
                cannot_be_a_base: false,
                username: "",
                password: None,
                host: None,
                port: None,
                path: "/home/gh-bjorn3/rust/compiler/rustc_codegen_ssa/src/lib.rs",
                query: None,
                fragment: None,
            },
        },
        position: Position {
            line: 137,
            character: 10,
        },
    },
    work_done_progress_params: WorkDoneProgressParams {
        work_done_token: None,
    },
    partial_result_params: PartialResultParams {
        partial_result_token: None,
    },
    context: ReferenceContext {
        include_declaration: true,
    },
}

[Error - 3:20:47 PM] Request textDocument/references failed.
  Message: request handler panicked: internal error: entered unreachable code
  Code: -32603