ICE: `expected type for param #0 in [N/#0]`

[matthiaskrgr]

Code

struct S<const N: usize>;
impl<const N: usize> S<N> {
    #[type_const]
    const LEN: usize = 1;
    fn arr() {
        [8; Self::LEN]
    }
}

pub fn main() {}

Meta

rustc --version --verbose:

rustc 1.94.0-nightly (aefa10405 2026-01-12)
binary: rustc
commit-hash: aefa10405d7b67b3780027484cb02c85d3a3bf36
commit-date: 2026-01-12
host: x86_64-unknown-linux-gnu
release: 1.94.0-nightly
LLVM version: 21.1.8

Error output

error[E0658]: the `#[type_const]` attribute is an experimental feature
 --> code.rs:3:5
  |
3 |     #[type_const]
  |     ^^^^^^^^^^^^^
  |
  = note: see issue #132980 <https://github.com/rust-lang/rust/issues/132980> for more information
  = help: add `#![feature(min_generic_const_args)]` to the crate attributes to enable
  = note: this compiler was built on 2026-01-12; consider upgrading it if it is out of date

Backtrace

error: internal compiler error: /rustc-dev/aefa10405d7b67b3780027484cb02c85d3a3bf36/compiler/rustc_middle/src/ty/generic_args.rs:54:14: expected type for param #0 in [N/#0]


thread 'rustc' (1582877) panicked at /rustc-dev/aefa10405d7b67b3780027484cb02c85d3a3bf36/compiler/rustc_middle/src/ty/generic_args.rs:54:14:
Box<dyn Any>
stack backtrace:
   0:     0x7f4b192463b3 - <<std[7a685385707270fb]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[61b332aa98023c5c]::fmt::Display>::fmt
   1:     0x7f4b1980fb48 - core[61b332aa98023c5c]::fmt::write
   2:     0x7f4b1925cda6 - <std[7a685385707270fb]::sys::stdio::unix::Stderr as std[7a685385707270fb]::io::Write>::write_fmt
   3:     0x7f4b1921c428 - std[7a685385707270fb]::panicking::default_hook::{closure#0}
   4:     0x7f4b19239ae3 - std[7a685385707270fb]::panicking::default_hook
   5:     0x7f4b1821ba5a - std[7a685385707270fb]::panicking::update_hook::<alloc[e7bb50f96aecfa7e]::boxed::Box<rustc_driver_impl[dde4f1b161f134f5]::install_ice_hook::{closure#1}>>::{closure#0}
   6:     0x7f4b19239dc2 - std[7a685385707270fb]::panicking::panic_with_hook
   7:     0x7f4b18258741 - std[7a685385707270fb]::panicking::begin_panic::<rustc_errors[fe9d00ab7b1a237c]::ExplicitBug>::{closure#0}
   8:     0x7f4b18248b26 - std[7a685385707270fb]::sys::backtrace::__rust_end_short_backtrace::<std[7a685385707270fb]::panicking::begin_panic<rustc_errors[fe9d00ab7b1a237c]::ExplicitBug>::{closure#0}, !>
   9:     0x7f4b182487ff - std[7a685385707270fb]::panicking::begin_panic::<rustc_errors[fe9d00ab7b1a237c]::ExplicitBug>
  10:     0x7f4b18276441 - <rustc_errors[fe9d00ab7b1a237c]::diagnostic::BugAbort as rustc_errors[fe9d00ab7b1a237c]::diagnostic::EmissionGuarantee>::emit_producing_guarantee
  11:     0x7f4b18829029 - rustc_middle[f41928511b683689]::util::bug::opt_span_bug_fmt::<rustc_span[bb222c012431270a]::span_encoding::Span>::{closure#0}
  12:     0x7f4b188291b2 - rustc_middle[f41928511b683689]::ty::context::tls::with_opt::<rustc_middle[f41928511b683689]::util::bug::opt_span_bug_fmt<rustc_span[bb222c012431270a]::span_encoding::Span>::{closure#0}, !>::{closure#0}
  13:     0x7f4b1881a7db - rustc_middle[f41928511b683689]::ty::context::tls::with_context_opt::<rustc_middle[f41928511b683689]::ty::context::tls::with_opt<rustc_middle[f41928511b683689]::util::bug::opt_span_bug_fmt<rustc_span[bb222c012431270a]::span_encoding::Span>::{closure#0}, !>::{closure#0}, !>
  14:     0x7f4b161a8f64 - rustc_middle[f41928511b683689]::util::bug::bug_fmt
  15:     0x7f4b1b8e24d8 - <&rustc_middle[f41928511b683689]::ty::list::RawList<(), rustc_middle[f41928511b683689]::ty::generic_args::GenericArg> as rustc_type_ir[4398726041082064]::inherent::GenericArgs<rustc_middle[f41928511b683689]::ty::context::TyCtxt>>::type_at.cold
  16:     0x7f4b1906e945 - rustc_trait_selection[df4e03973cb6af8]::traits::project::compute_inherent_assoc_term_args
  17:     0x7f4b1906c8c9 - rustc_trait_selection[df4e03973cb6af8]::traits::project::normalize_inherent_projection
  18:     0x7f4b19131c5d - rustc_traits[10456ccf4a2cc282]::normalize_projection_ty::normalize_canonicalized_inherent_projection
  19:     0x7f4b18c39e11 - rustc_query_impl[92de86bbf6a30d7a]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[92de86bbf6a30d7a]::query_impl::normalize_canonicalized_inherent_projection::dynamic_query::{closure#2}::{closure#0}, rustc_middle[f41928511b683689]::query::erase::Erased<[u8; 8usize]>>
  20:     0x7f4b18d43e33 - <rustc_query_impl[92de86bbf6a30d7a]::query_impl::normalize_canonicalized_inherent_projection::dynamic_query::{closure#2} as core[61b332aa98023c5c]::ops::function::FnOnce<(rustc_middle[f41928511b683689]::ty::context::TyCtxt, rustc_type_ir[4398726041082064]::canonical::CanonicalQueryInput<rustc_middle[f41928511b683689]::ty::context::TyCtxt, rustc_middle[f41928511b683689]::ty::ParamEnvAnd<rustc_type_ir[4398726041082064]::predicate::AliasTerm<rustc_middle[f41928511b683689]::ty::context::TyCtxt>>>)>>::call_once
  21:     0x7f4b19f286e5 - rustc_query_system[2182470d59733900]::query::plumbing::try_execute_query::<rustc_query_impl[92de86bbf6a30d7a]::DynamicConfig<rustc_query_system[2182470d59733900]::query::caches::DefaultCache<rustc_type_ir[4398726041082064]::canonical::CanonicalQueryInput<rustc_middle[f41928511b683689]::ty::context::TyCtxt, rustc_middle[f41928511b683689]::ty::ParamEnvAnd<rustc_type_ir[4398726041082064]::predicate::AliasTerm<rustc_middle[f41928511b683689]::ty::context::TyCtxt>>>, rustc_middle[f41928511b683689]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[92de86bbf6a30d7a]::plumbing::QueryCtxt, false>
  22:     0x7f4b18cc0b92 - rustc_query_impl[92de86bbf6a30d7a]::query_impl::normalize_canonicalized_inherent_projection::get_query_non_incr::__rust_end_short_backtrace
  23:     0x7f4b199e458b - <rustc_trait_selection[df4e03973cb6af8]::traits::query::normalize::QueryNormalizer>::try_fold_free_or_assoc
  24:     0x7f4b199de0c7 - <rustc_trait_selection[df4e03973cb6af8]::traits::query::normalize::QueryNormalizer as rustc_type_ir[4398726041082064]::fold::FallibleTypeFolder<rustc_middle[f41928511b683689]::ty::context::TyCtxt>>::try_fold_const
  25:     0x7f4b199daec8 - <rustc_traits[10456ccf4a2cc282]::normalize_erasing_regions::provide::{closure#0} as core[61b332aa98023c5c]::ops::function::FnOnce<(rustc_middle[f41928511b683689]::ty::context::TyCtxt, rustc_middle[f41928511b683689]::ty::PseudoCanonicalInput<rustc_middle[f41928511b683689]::ty::generic_args::GenericArg>)>>::call_once
  26:     0x7f4b199da2a0 - rustc_query_impl[92de86bbf6a30d7a]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[92de86bbf6a30d7a]::query_impl::try_normalize_generic_arg_after_erasing_regions::dynamic_query::{closure#2}::{closure#0}, rustc_middle[f41928511b683689]::query::erase::Erased<[u8; 8usize]>>
  27:     0x7f4b199d94cd - rustc_query_system[2182470d59733900]::query::plumbing::try_execute_query::<rustc_query_impl[92de86bbf6a30d7a]::DynamicConfig<rustc_query_system[2182470d59733900]::query::caches::DefaultCache<rustc_middle[f41928511b683689]::ty::PseudoCanonicalInput<rustc_middle[f41928511b683689]::ty::generic_args::GenericArg>, rustc_middle[f41928511b683689]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[92de86bbf6a30d7a]::plumbing::QueryCtxt, false>
  28:     0x7f4b199d9198 - rustc_query_impl[92de86bbf6a30d7a]::query_impl::try_normalize_generic_arg_after_erasing_regions::get_query_non_incr::__rust_end_short_backtrace
  29:     0x7f4b1aad2334 - <rustc_middle[f41928511b683689]::ty::normalize_erasing_regions::TryNormalizeAfterErasingRegionsFolder as rustc_type_ir[4398726041082064]::fold::FallibleTypeFolder<rustc_middle[f41928511b683689]::ty::context::TyCtxt>>::try_fold_const
  30:     0x7f4b1af2ed85 - <rustc_middle[f41928511b683689]::mir::consts::Const as rustc_type_ir[4398726041082064]::fold::TypeFoldable<rustc_middle[f41928511b683689]::ty::context::TyCtxt>>::try_fold_with::<rustc_middle[f41928511b683689]::ty::normalize_erasing_regions::TryNormalizeAfterErasingRegionsFolder>.warm
  31:     0x7f4b16002074 - <rustc_mir_transform[e2270b55c1a450ed]::post_analysis_normalize::PostAnalysisNormalize as rustc_mir_transform[e2270b55c1a450ed]::pass_manager::MirPass>::run_pass
  32:     0x7f4b1980bffc - rustc_mir_transform[e2270b55c1a450ed]::run_analysis_to_runtime_passes
  33:     0x7f4b1a50d980 - rustc_mir_transform[e2270b55c1a450ed]::mir_drops_elaborated_and_const_checked
  34:     0x7f4b1a50d319 - rustc_query_impl[92de86bbf6a30d7a]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[92de86bbf6a30d7a]::query_impl::mir_drops_elaborated_and_const_checked::dynamic_query::{closure#2}::{closure#0}, rustc_middle[f41928511b683689]::query::erase::Erased<[u8; 8usize]>>
  35:     0x7f4b19a2ff77 - rustc_query_system[2182470d59733900]::query::plumbing::try_execute_query::<rustc_query_impl[92de86bbf6a30d7a]::DynamicConfig<rustc_data_structures[bbdded0d881d1712]::vec_cache::VecCache<rustc_span[bb222c012431270a]::def_id::LocalDefId, rustc_middle[f41928511b683689]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[2182470d59733900]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[92de86bbf6a30d7a]::plumbing::QueryCtxt, false>
  36:     0x7f4b19a2f609 - rustc_query_impl[92de86bbf6a30d7a]::query_impl::mir_drops_elaborated_and_const_checked::get_query_non_incr::__rust_end_short_backtrace
  37:     0x7f4b19ae85b4 - rustc_mir_transform[e2270b55c1a450ed]::mir_for_ctfe
  38:     0x7f4b19ae7d55 - rustc_query_impl[92de86bbf6a30d7a]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[92de86bbf6a30d7a]::query_impl::mir_for_ctfe::dynamic_query::{closure#2}::{closure#0}, rustc_middle[f41928511b683689]::query::erase::Erased<[u8; 8usize]>>
  39:     0x7f4b19818b86 - rustc_query_system[2182470d59733900]::query::plumbing::try_execute_query::<rustc_query_impl[92de86bbf6a30d7a]::DynamicConfig<rustc_query_system[2182470d59733900]::query::caches::DefIdCache<rustc_middle[f41928511b683689]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[92de86bbf6a30d7a]::plumbing::QueryCtxt, false>
  40:     0x7f4b1a912b35 - rustc_query_impl[92de86bbf6a30d7a]::query_impl::mir_for_ctfe::get_query_non_incr::__rust_end_short_backtrace
  41:     0x7f4b1a912572 - <rustc_const_eval[ab201d1f9853655a]::interpret::eval_context::InterpCx<rustc_const_eval[ab201d1f9853655a]::const_eval::machine::CompileTimeMachine>>::load_mir
  42:     0x7f4b1a91408a - rustc_const_eval[ab201d1f9853655a]::const_eval::eval_queries::eval_to_allocation_raw_provider
  43:     0x7f4b1a913904 - rustc_query_impl[92de86bbf6a30d7a]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[92de86bbf6a30d7a]::query_impl::eval_to_allocation_raw::dynamic_query::{closure#2}::{closure#0}, rustc_middle[f41928511b683689]::query::erase::Erased<[u8; 24usize]>>
  44:     0x7f4b1a91305d - rustc_query_system[2182470d59733900]::query::plumbing::try_execute_query::<rustc_query_impl[92de86bbf6a30d7a]::DynamicConfig<rustc_query_system[2182470d59733900]::query::caches::DefaultCache<rustc_middle[f41928511b683689]::ty::PseudoCanonicalInput<rustc_middle[f41928511b683689]::mir::interpret::GlobalId>, rustc_middle[f41928511b683689]::query::erase::Erased<[u8; 24usize]>>, false, false, false>, rustc_query_impl[92de86bbf6a30d7a]::plumbing::QueryCtxt, false>
  45:     0x7f4b1a912c07 - rustc_query_impl[92de86bbf6a30d7a]::query_impl::eval_to_allocation_raw::get_query_non_incr::__rust_end_short_backtrace
  46:     0x7f4b1a8fc485 - rustc_const_eval[ab201d1f9853655a]::const_eval::valtrees::eval_to_valtree
  47:     0x7f4b1a8fc236 - <rustc_const_eval[ab201d1f9853655a]::provide::{closure#0} as core[61b332aa98023c5c]::ops::function::FnOnce<(rustc_middle[f41928511b683689]::ty::context::TyCtxt, rustc_middle[f41928511b683689]::ty::PseudoCanonicalInput<rustc_middle[f41928511b683689]::mir::interpret::GlobalId>)>>::call_once
  48:     0x7f4b1a8fc200 - rustc_query_impl[92de86bbf6a30d7a]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[92de86bbf6a30d7a]::query_impl::eval_to_valtree::dynamic_query::{closure#2}::{closure#0}, rustc_middle[f41928511b683689]::query::erase::Erased<[u8; 16usize]>>
  49:     0x7f4b1a8fc1bb - <rustc_query_impl[92de86bbf6a30d7a]::query_impl::eval_to_valtree::dynamic_query::{closure#2} as core[61b332aa98023c5c]::ops::function::FnOnce<(rustc_middle[f41928511b683689]::ty::context::TyCtxt, rustc_middle[f41928511b683689]::ty::PseudoCanonicalInput<rustc_middle[f41928511b683689]::mir::interpret::GlobalId>)>>::call_once
  50:     0x7f4b1a21f508 - rustc_query_system[2182470d59733900]::query::plumbing::try_execute_query::<rustc_query_impl[92de86bbf6a30d7a]::DynamicConfig<rustc_query_system[2182470d59733900]::query::caches::DefaultCache<rustc_middle[f41928511b683689]::ty::PseudoCanonicalInput<rustc_middle[f41928511b683689]::mir::interpret::GlobalId>, rustc_middle[f41928511b683689]::query::erase::Erased<[u8; 16usize]>>, false, false, false>, rustc_query_impl[92de86bbf6a30d7a]::plumbing::QueryCtxt, false>
  51:     0x7f4b1a21f130 - rustc_query_impl[92de86bbf6a30d7a]::query_impl::eval_to_valtree::get_query_non_incr::__rust_end_short_backtrace
  52:     0x7f4b16549ef1 - <rustc_middle[f41928511b683689]::ty::context::TyCtxt>::const_eval_resolve_for_typeck
  53:     0x7f4b199e99a4 - rustc_trait_selection[df4e03973cb6af8]::traits::try_evaluate_const
  54:     0x7f4b199eaf63 - <rustc_trait_selection[df4e03973cb6af8]::traits::normalize::AssocTypeNormalizer as rustc_type_ir[4398726041082064]::fold::TypeFolder<rustc_middle[f41928511b683689]::ty::context::TyCtxt>>::fold_const
  55:     0x7f4b1a9d0449 - <rustc_hir_typeck[1a62780fcb7c5b2c]::fn_ctxt::FnCtxt>::normalize::<rustc_middle[f41928511b683689]::ty::consts::Const>
  56:     0x7f4b1a9cfc9c - <rustc_hir_typeck[1a62780fcb7c5b2c]::fn_ctxt::FnCtxt>::check_expr_repeat
  57:     0x7f4b19babd52 - <rustc_hir_typeck[1a62780fcb7c5b2c]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  58:     0x7f4b19ba453b - <rustc_hir_typeck[1a62780fcb7c5b2c]::fn_ctxt::FnCtxt>::check_expr_block
  59:     0x7f4b19baa10b - <rustc_hir_typeck[1a62780fcb7c5b2c]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  60:     0x7f4b19b8a985 - rustc_hir_typeck[1a62780fcb7c5b2c]::check::check_fn
  61:     0x7f4b1a5176f3 - rustc_hir_typeck[1a62780fcb7c5b2c]::typeck_with_inspect::{closure#0}
  62:     0x7f4b1a516074 - rustc_query_impl[92de86bbf6a30d7a]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[92de86bbf6a30d7a]::query_impl::typeck::dynamic_query::{closure#2}::{closure#0}, rustc_middle[f41928511b683689]::query::erase::Erased<[u8; 8usize]>>
  63:     0x7f4b19a2ff77 - rustc_query_system[2182470d59733900]::query::plumbing::try_execute_query::<rustc_query_impl[92de86bbf6a30d7a]::DynamicConfig<rustc_data_structures[bbdded0d881d1712]::vec_cache::VecCache<rustc_span[bb222c012431270a]::def_id::LocalDefId, rustc_middle[f41928511b683689]::query::erase::Erased<[u8; 8usize]>, rustc_query_system[2182470d59733900]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[92de86bbf6a30d7a]::plumbing::QueryCtxt, false>
  64:     0x7f4b19a2f849 - rustc_query_impl[92de86bbf6a30d7a]::query_impl::typeck::get_query_non_incr::__rust_end_short_backtrace
  65:     0x7f4b1a22fe33 - <rustc_middle[f41928511b683689]::ty::context::TyCtxt>::par_hir_body_owners::<rustc_hir_analysis[49f5e1bf97556dfe]::check_crate::{closure#2}>::{closure#0}
  66:     0x7f4b1a22f844 - rustc_hir_analysis[49f5e1bf97556dfe]::check_crate
  67:     0x7f4b19a2a0db - rustc_interface[16637161417a674e]::passes::analysis
  68:     0x7f4b19a29d27 - rustc_query_impl[92de86bbf6a30d7a]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[92de86bbf6a30d7a]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[f41928511b683689]::query::erase::Erased<[u8; 0usize]>>
  69:     0x7f4b1a9d1d26 - rustc_query_system[2182470d59733900]::query::plumbing::try_execute_query::<rustc_query_impl[92de86bbf6a30d7a]::DynamicConfig<rustc_query_system[2182470d59733900]::query::caches::SingleCache<rustc_middle[f41928511b683689]::query::erase::Erased<[u8; 0usize]>>, false, false, false>, rustc_query_impl[92de86bbf6a30d7a]::plumbing::QueryCtxt, false>
  70:     0x7f4b1a9d1a88 - rustc_query_impl[92de86bbf6a30d7a]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
  71:     0x7f4b1abb8ad4 - <rustc_interface[16637161417a674e]::passes::create_and_enter_global_ctxt<core[61b332aa98023c5c]::option::Option<rustc_interface[16637161417a674e]::queries::Linker>, rustc_driver_impl[dde4f1b161f134f5]::run_compiler::{closure#0}::{closure#2}>::{closure#2} as core[61b332aa98023c5c]::ops::function::FnOnce<(&rustc_session[26ef460f5112744f]::session::Session, rustc_middle[f41928511b683689]::ty::context::CurrentGcx, alloc[e7bb50f96aecfa7e]::sync::Arc<rustc_data_structures[bbdded0d881d1712]::jobserver::Proxy>, &std[7a685385707270fb]::sync::once_lock::OnceLock<rustc_middle[f41928511b683689]::ty::context::GlobalCtxt>, &rustc_data_structures[bbdded0d881d1712]::sync::worker_local::WorkerLocal<rustc_middle[f41928511b683689]::arena::Arena>, &rustc_data_structures[bbdded0d881d1712]::sync::worker_local::WorkerLocal<rustc_hir[91510438fa6d713e]::Arena>, rustc_driver_impl[dde4f1b161f134f5]::run_compiler::{closure#0}::{closure#2})>>::call_once::{shim:vtable#0}
  72:     0x7f4b1aa228d8 - rustc_interface[16637161417a674e]::interface::run_compiler::<(), rustc_driver_impl[dde4f1b161f134f5]::run_compiler::{closure#0}>::{closure#1}
  73:     0x7f4b1a996b4e - std[7a685385707270fb]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[16637161417a674e]::util::run_in_thread_with_globals<rustc_interface[16637161417a674e]::util::run_in_thread_pool_with_globals<rustc_interface[16637161417a674e]::interface::run_compiler<(), rustc_driver_impl[dde4f1b161f134f5]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>
  74:     0x7f4b1a996920 - <std[7a685385707270fb]::thread::lifecycle::spawn_unchecked<rustc_interface[16637161417a674e]::util::run_in_thread_with_globals<rustc_interface[16637161417a674e]::util::run_in_thread_pool_with_globals<rustc_interface[16637161417a674e]::interface::run_compiler<(), rustc_driver_impl[dde4f1b161f134f5]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[61b332aa98023c5c]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  75:     0x7f4b1a998738 - <std[7a685385707270fb]::sys::thread::unix::Thread>::new::thread_start
  76:     0x7f4b1429698b - <unknown>
  77:     0x7f4b1431a9cc - <unknown>
  78:                0x0 - <unknown>

note: we would appreciate a bug report: https://github.com/rust-lang/rust/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md

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

note: please attach the file at `/home/matthias/vcs/github/CRED/rustc-ice-2026-01-12T20_37_21-1582858.txt` to your bug report

note: rustc 1.94.0-nightly (aefa10405 2026-01-12) running on x86_64-unknown-linux-gnu

query stack during panic:
panicked at /rustc-dev/aefa10405d7b67b3780027484cb02c85d3a3bf36/compiler/rustc_middle/src/ty/generic_args.rs:54:14:

thread panicked while processing panic. aborting.

[reddevilmidzy]

Similar with #138226
With the min_generic_const_args and inherent_associated_types feature flags enabled, ICE was only reproduced in rustc dev, but when the feature flag was removed, it seems to be reproduced in nightly as well.