Compiling hash_problem v0.1.0 (/home/ash/Projects/misc/hash_problem)
thread 'rustc' panicked at /rustc/eeb90cda1969383f56a2637cbd3037bdf598841c/compiler/rustc_type_ir/src/ty_kind.rs:892:17:
type variables should not be hashed: ?0t
stack backtrace:
   0: rust_begin_unwind
             at /rustc/eeb90cda1969383f56a2637cbd3037bdf598841c/library/std/src/panicking.rs:665:5
   1: core::panicking::panic_fmt
             at /rustc/eeb90cda1969383f56a2637cbd3037bdf598841c/library/core/src/panicking.rs:74:14
   2: <rustc_type_ir::ty_info::WithCachedTypeInfo<rustc_type_ir::ty_kind::TyKind<rustc_middle::ty::context::TyCtxt>> as rustc_data_structures::stable_hasher::HashStable<rustc_query_system::ich::hcx::StableHashingContext>>::hash_stable
   3: <rustc_type_ir::ty_info::WithCachedTypeInfo<rustc_type_ir::ty_kind::TyKind<rustc_middle::ty::context::TyCtxt>> as rustc_data_structures::stable_hasher::HashStable<rustc_query_system::ich::hcx::StableHashingContext>>::hash_stable
   4: <rustc_type_ir::ty_info::WithCachedTypeInfo<rustc_type_ir::ty_kind::TyKind<rustc_middle::ty::context::TyCtxt>> as rustc_data_structures::stable_hasher::HashStable<rustc_query_system::ich::hcx::StableHashingContext>>::hash_stable
   5: <rustc_query_impl::query_impl::try_normalize_generic_arg_after_erasing_regions::dynamic_query::{closure#7} as core::ops::function::FnOnce<(&mut rustc_query_system::ich::hcx::StableHashingContext, &rustc_middle::query::erase::Erased<[u8; 8]>)>>::call_once
   6: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::DefaultCache<rustc_middle::ty::ParamEnvAnd<rustc_middle::ty::generic_args::GenericArg>, rustc_middle::query::erase::Erased<[u8; 8]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, true>
   7: <rustc_middle::ty::normalize_erasing_regions::NormalizeAfterErasingRegionsFolder as rustc_type_ir::fold::TypeFolder<rustc_middle::ty::context::TyCtxt>>::fold_ty
   8: rustc_monomorphize::collector::collect_items_rec::{closure#0}
   9: rustc_monomorphize::collector::collect_items_rec
  10: rustc_monomorphize::collector::collect_items_rec
  11: rustc_monomorphize::collector::collect_items_rec
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  74: rustc_monomorphize::collector::collect_items_rec
  75: rustc_monomorphize::collector::collect_items_rec
  76: rustc_monomorphize::partitioning::collect_and_partition_mono_items
      [... omitted 2 frames ...]
  77: <rustc_codegen_llvm::LlvmCodegenBackend as rustc_codegen_ssa::traits::backend::CodegenBackend>::codegen_crate
  78: <rustc_interface::queries::Linker>::codegen_and_build_linker
  79: rustc_interface::interface::run_compiler::<core::result::Result<(), rustc_span::ErrorGuaranteed>, rustc_driver_impl::run_compiler::{closure#0}>::{closure#1}
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/rust/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md

note: rustc 1.81.0 (eeb90cda1 2024-09-04) running on x86_64-unknown-linux-gnu

note: compiler flags: --crate-type bin -C embed-bitcode=no -C debuginfo=2 -C incremental=[REDACTED]

note: some of the compiler flags provided by cargo are hidden

query stack during panic:
#0 [try_normalize_generic_arg_after_erasing_regions] normalizing `core::option::Option<core::option::Option<<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut alloc::vec::into_iter::IntoIter<u8>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> as core::iter::traits::iterator::Iterator>::Item>>::get_or_insert_with<{closure@core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut core::iter::adapters::peekable::Peekable<&mut alloc::vec::into_iter::IntoIter<u8>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>::peek::{closure#0}}>`
#1 [collect_and_partition_mono_items] collect_and_partition_mono_items
end of query stack
error: could not compile `hash_problem` (bin "hash_problem")