thread 'rustc' panicked at compiler/rustc_infer/src/infer/generalize.rs:28:40:
called `Result::unwrap_err()` on an `Ok` value: std::sync::Arc<validate::ValidPoolTransaction<?3t>, std::alloc::Global>
stack backtrace:
   0:        0x103c2b4d8 - std::backtrace::Backtrace::create::h6a763f843dc216f5
   1:        0x10d02c828 - <alloc[c93e098ce80cffbb]::boxed::Box<rustc_driver_impl[a3eca4280d024f82]::install_ice_hook::{closure#0}> as core[93d19b53d5db826e]::ops::function::Fn<(&dyn for<'a, 'b> core[93d19b53d5db826e]::ops::function::Fn<(&'a core[93d19b53d5db826e]::panic::panic_info::PanicInfo<'b>,), Output = ()> + core[93d19b53d5db826e]::marker::Sync + core[93d19b53d5db826e]::marker::Send, &core[93d19b53d5db826e]::panic::panic_info::PanicInfo)>>::call
   2:        0x103c43a38 - std::panicking::rust_panic_with_hook::he4f1fcd294095ca5
   3:        0x103c43800 - std::panicking::begin_panic_handler::{{closure}}::ha556c0669bd1aa87
   4:        0x103c40fec - std::sys_common::backtrace::__rust_end_short_backtrace::h04b9b3c35181688e
   5:        0x103c4359c - _rust_begin_unwind
   6:        0x103c9cc08 - core::panicking::panic_fmt::h3fefc83fe5bc8bde
   7:        0x103c9d048 - core::result::unwrap_failed::h99175696506aadca
   8:        0x10d6d1ba4 - rustc_infer[fb6d7b84cbe57ced]::infer::generalize::generalize::<rustc_infer[fb6d7b84cbe57ced]::infer::generalize::CombineDelegate, rustc_middle[bbd4bcebab330050]::ty::Ty, rustc_type_ir[e6204ec9e5aaf50d]::ty_kind::TyVid>
   9:        0x10d6e34e8 - <rustc_infer[fb6d7b84cbe57ced]::infer::combine::CombineFields>::instantiate
  10:        0x10d626b54 - <rustc_infer[fb6d7b84cbe57ced]::infer::equate::Equate as rustc_middle[bbd4bcebab330050]::ty::relate::TypeRelation>::tys
  11:        0x10e783220 - <rustc_middle[bbd4bcebab330050]::ty::generic_args::GenericArg as rustc_middle[bbd4bcebab330050]::ty::relate::Relate>::relate::<rustc_infer[fb6d7b84cbe57ced]::infer::equate::Equate>
  12:        0x10e7bd8e0 - <core[93d19b53d5db826e]::result::Result<rustc_middle[bbd4bcebab330050]::ty::generic_args::GenericArg, rustc_middle[bbd4bcebab330050]::ty::error::TypeError> as rustc_type_ir[e6204ec9e5aaf50d]::interner::CollectAndApply<rustc_middle[bbd4bcebab330050]::ty::generic_args::GenericArg, &rustc_middle[bbd4bcebab330050]::ty::list::List<rustc_middle[bbd4bcebab330050]::ty::generic_args::GenericArg>>>::collect_and_apply::<core[93d19b53d5db826e]::iter::adapters::map::Map<core[93d19b53d5db826e]::iter::adapters::zip::Zip<core[93d19b53d5db826e]::iter::adapters::copied::Copied<core[93d19b53d5db826e]::slice::iter::Iter<rustc_middle[bbd4bcebab330050]::ty::generic_args::GenericArg>>, core[93d19b53d5db826e]::iter::adapters::copied::Copied<core[93d19b53d5db826e]::slice::iter::Iter<rustc_middle[bbd4bcebab330050]::ty::generic_args::GenericArg>>>, rustc_middle[bbd4bcebab330050]::ty::relate::relate_args_invariantly<rustc_infer[fb6d7b84cbe57ced]::infer::sub::Sub>::{closure#0}>, <rustc_middle[bbd4bcebab330050]::ty::context::TyCtxt>::mk_args_from_iter<core[93d19b53d5db826e]::iter::adapters::map::Map<core[93d19b53d5db826e]::iter::adapters::zip::Zip<core[93d19b53d5db826e]::iter::adapters::copied::Copied<core[93d19b53d5db826e]::slice::iter::Iter<rustc_middle[bbd4bcebab330050]::ty::generic_args::GenericArg>>, core[93d19b53d5db826e]::iter::adapters::copied::Copied<core[93d19b53d5db826e]::slice::iter::Iter<rustc_middle[bbd4bcebab330050]::ty::generic_args::GenericArg>>>, rustc_middle[bbd4bcebab330050]::ty::relate::relate_args_invariantly<rustc_infer[fb6d7b84cbe57ced]::infer::sub::Sub>::{closure#0}>, core[93d19b53d5db826e]::result::Result<rustc_middle[bbd4bcebab330050]::ty::generic_args::GenericArg, rustc_middle[bbd4bcebab330050]::ty::error::TypeError>>::{closure#0}>
  13:        0x10e81f024 - <rustc_infer[fb6d7b84cbe57ced]::infer::combine::CombineFields>::higher_ranked_sub::<rustc_middle[bbd4bcebab330050]::ty::sty::TraitRef>
  14:        0x10e8a2c80 - <rustc_infer[fb6d7b84cbe57ced]::infer::InferCtxt>::commit_if_ok::<rustc_infer[fb6d7b84cbe57ced]::infer::InferOk<()>, rustc_middle[bbd4bcebab330050]::ty::error::TypeError, <rustc_infer[fb6d7b84cbe57ced]::infer::at::Trace>::sub<rustc_middle[bbd4bcebab330050]::ty::sty::Binder<rustc_middle[bbd4bcebab330050]::ty::sty::TraitRef>>::{closure#0}>
  15:        0x10e86e338 - <rustc_trait_selection[94ffaf704d09d954]::traits::select::SelectionContext>::match_where_clause_trait_ref
  16:        0x10e8ab848 - <rustc_infer[fb6d7b84cbe57ced]::infer::InferCtxt>::probe::<core[93d19b53d5db826e]::result::Result<rustc_middle[bbd4bcebab330050]::traits::select::EvaluationResult, rustc_middle[bbd4bcebab330050]::traits::select::OverflowError>, <rustc_trait_selection[94ffaf704d09d954]::traits::select::SelectionContext>::evaluation_probe<<rustc_trait_selection[94ffaf704d09d954]::traits::select::SelectionContext>::where_clause_may_apply::{closure#0}>::{closure#0}>
  17:        0x10e86f920 - <rustc_trait_selection[94ffaf704d09d954]::traits::select::SelectionContext>::assemble_candidates_from_caller_bounds
  18:        0x10e86f08c - <rustc_trait_selection[94ffaf704d09d954]::traits::select::SelectionContext>::assemble_candidates
  19:        0x10e86af48 - <rustc_trait_selection[94ffaf704d09d954]::traits::select::SelectionContext>::in_task::<<rustc_trait_selection[94ffaf704d09d954]::traits::select::SelectionContext>::candidate_from_obligation::{closure#0}::{closure#0}, core[93d19b53d5db826e]::result::Result<core[93d19b53d5db826e]::option::Option<rustc_middle[bbd4bcebab330050]::traits::select::SelectionCandidate>, rustc_middle[bbd4bcebab330050]::traits::SelectionError>>::{closure#0}
  20:        0x10e876174 - <rustc_trait_selection[94ffaf704d09d954]::traits::select::SelectionContext>::candidate_from_obligation
  21:        0x10e87943c - <rustc_trait_selection[94ffaf704d09d954]::traits::select::SelectionContext>::evaluate_trait_predicate_recursively::{closure#0}::{closure#1}
  22:        0x10e8787e4 - <rustc_trait_selection[94ffaf704d09d954]::traits::select::SelectionContext>::evaluate_trait_predicate_recursively
  23:        0x10e8774e8 - <rustc_trait_selection[94ffaf704d09d954]::traits::select::SelectionContext>::evaluate_predicate_recursively
  24:        0x10e876fac - <rustc_trait_selection[94ffaf704d09d954]::traits::select::SelectionContext>::evaluate_predicates_recursively::<alloc[c93e098ce80cffbb]::vec::Vec<rustc_infer[fb6d7b84cbe57ced]::traits::Obligation<rustc_middle[bbd4bcebab330050]::ty::Predicate>>>
  25:        0x10e877a10 - <rustc_trait_selection[94ffaf704d09d954]::traits::select::SelectionContext>::evaluate_predicate_recursively
  26:        0x10e876fac - <rustc_trait_selection[94ffaf704d09d954]::traits::select::SelectionContext>::evaluate_predicates_recursively::<alloc[c93e098ce80cffbb]::vec::Vec<rustc_infer[fb6d7b84cbe57ced]::traits::Obligation<rustc_middle[bbd4bcebab330050]::ty::Predicate>>>
  27:        0x10e8ab874 - <rustc_infer[fb6d7b84cbe57ced]::infer::InferCtxt>::probe::<core[93d19b53d5db826e]::result::Result<rustc_middle[bbd4bcebab330050]::traits::select::EvaluationResult, rustc_middle[bbd4bcebab330050]::traits::select::OverflowError>, <rustc_trait_selection[94ffaf704d09d954]::traits::select::SelectionContext>::evaluation_probe<<rustc_trait_selection[94ffaf704d09d954]::traits::select::SelectionContext>::where_clause_may_apply::{closure#0}>::{closure#0}>
  28:        0x10e86f920 - <rustc_trait_selection[94ffaf704d09d954]::traits::select::SelectionContext>::assemble_candidates_from_caller_bounds
  29:        0x10e86f08c - <rustc_trait_selection[94ffaf704d09d954]::traits::select::SelectionContext>::assemble_candidates
  30:        0x10e86af48 - <rustc_trait_selection[94ffaf704d09d954]::traits::select::SelectionContext>::in_task::<<rustc_trait_selection[94ffaf704d09d954]::traits::select::SelectionContext>::candidate_from_obligation::{closure#0}::{closure#0}, core[93d19b53d5db826e]::result::Result<core[93d19b53d5db826e]::option::Option<rustc_middle[bbd4bcebab330050]::traits::select::SelectionCandidate>, rustc_middle[bbd4bcebab330050]::traits::SelectionError>>::{closure#0}
  31:        0x10e876174 - <rustc_trait_selection[94ffaf704d09d954]::traits::select::SelectionContext>::candidate_from_obligation
  32:        0x10e87943c - <rustc_trait_selection[94ffaf704d09d954]::traits::select::SelectionContext>::evaluate_trait_predicate_recursively::{closure#0}::{closure#1}
  33:        0x10e8787e4 - <rustc_trait_selection[94ffaf704d09d954]::traits::select::SelectionContext>::evaluate_trait_predicate_recursively
  34:        0x10e8774e8 - <rustc_trait_selection[94ffaf704d09d954]::traits::select::SelectionContext>::evaluate_predicate_recursively
  35:        0x10e8abd90 - <rustc_infer[fb6d7b84cbe57ced]::infer::InferCtxt>::probe::<core[93d19b53d5db826e]::result::Result<rustc_middle[bbd4bcebab330050]::traits::select::EvaluationResult, rustc_middle[bbd4bcebab330050]::traits::select::OverflowError>, <rustc_trait_selection[94ffaf704d09d954]::traits::select::SelectionContext>::evaluation_probe<<rustc_trait_selection[94ffaf704d09d954]::traits::select::SelectionContext>::evaluate_root_obligation::{closure#0}>::{closure#0}>
  36:        0x10e8e2d48 - rustc_traits[ce4697066e2d466d]::evaluate_obligation::evaluate_obligation
  37:        0x10e22cb08 - rustc_query_impl[11612d4e5e8bb9b6]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[11612d4e5e8bb9b6]::query_impl::evaluate_obligation::dynamic_query::{closure#2}::{closure#0}, rustc_middle[bbd4bcebab330050]::query::erase::Erased<[u8; 2usize]>>
  38:        0x10e40c014 - <rustc_query_impl[11612d4e5e8bb9b6]::query_impl::evaluate_obligation::dynamic_query::{closure#2} as core[93d19b53d5db826e]::ops::function::FnOnce<(rustc_middle[bbd4bcebab330050]::ty::context::TyCtxt, rustc_type_ir[e6204ec9e5aaf50d]::canonical::Canonical<rustc_middle[bbd4bcebab330050]::ty::context::TyCtxt, rustc_middle[bbd4bcebab330050]::ty::ParamEnvAnd<rustc_middle[bbd4bcebab330050]::ty::Predicate>>)>>::call_once
  39:        0x10e16ea20 - rustc_query_system[d3408316a25468eb]::query::plumbing::try_execute_query::<rustc_query_impl[11612d4e5e8bb9b6]::DynamicConfig<rustc_query_system[d3408316a25468eb]::query::caches::DefaultCache<rustc_type_ir[e6204ec9e5aaf50d]::canonical::Canonical<rustc_middle[bbd4bcebab330050]::ty::context::TyCtxt, rustc_middle[bbd4bcebab330050]::ty::ParamEnvAnd<rustc_middle[bbd4bcebab330050]::ty::Predicate>>, rustc_middle[bbd4bcebab330050]::query::erase::Erased<[u8; 2usize]>>, false, false, false>, rustc_query_impl[11612d4e5e8bb9b6]::plumbing::QueryCtxt, false>
  40:        0x10e3464b4 - rustc_query_impl[11612d4e5e8bb9b6]::query_impl::evaluate_obligation::get_query_non_incr::__rust_end_short_backtrace
  41:        0x10e8c75cc - <rustc_infer[fb6d7b84cbe57ced]::infer::InferCtxt as rustc_trait_selection[94ffaf704d09d954]::traits::query::evaluate_obligation::InferCtxtExt>::evaluate_obligation
  42:        0x10231bbb4 - <rustdoc[8e8bb84a9b960d27]::clean::blanket_impl::BlanketImplFinder>::get_blanket_impls
  43:        0x10222e268 - rustdoc[8e8bb84a9b960d27]::clean::utils::get_auto_trait_and_blanket_impls
  44:        0x10233551c - <rustdoc[8e8bb84a9b960d27]::passes::collect_trait_impls::SyntheticImplCollector as rustdoc[8e8bb84a9b960d27]::visit::DocVisitor>::visit_item
  45:        0x102335620 - <rustdoc[8e8bb84a9b960d27]::passes::collect_trait_impls::SyntheticImplCollector as rustdoc[8e8bb84a9b960d27]::visit::DocVisitor>::visit_item
  46:        0x102335620 - <rustdoc[8e8bb84a9b960d27]::passes::collect_trait_impls::SyntheticImplCollector as rustdoc[8e8bb84a9b960d27]::visit::DocVisitor>::visit_item
  47:        0x102335620 - <rustdoc[8e8bb84a9b960d27]::passes::collect_trait_impls::SyntheticImplCollector as rustdoc[8e8bb84a9b960d27]::visit::DocVisitor>::visit_item
  48:        0x10233328c - rustdoc[8e8bb84a9b960d27]::passes::collect_trait_impls::collect_trait_impls
  49:        0x10233b224 - rustdoc[8e8bb84a9b960d27]::main_args::{closure#1}::{closure#0}::{closure#0}
  50:        0x1022b72ec - <rustc_interface[f65de6e25abf875a]::interface::Compiler>::enter::<rustdoc[8e8bb84a9b960d27]::main_args::{closure#1}::{closure#0}, core[93d19b53d5db826e]::result::Result<(), rustc_span[b5f51429c77c489e]::ErrorGuaranteed>>
  51:        0x1023beaec - rustc_interface[f65de6e25abf875a]::interface::run_compiler::<core[93d19b53d5db826e]::result::Result<(), rustc_span[b5f51429c77c489e]::ErrorGuaranteed>, rustdoc[8e8bb84a9b960d27]::main_args::{closure#1}>::{closure#0}
  52:        0x1023b9e84 - std[362851305dc41231]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[f65de6e25abf875a]::util::run_in_thread_with_globals<rustc_interface[f65de6e25abf875a]::util::run_in_thread_pool_with_globals<rustc_interface[f65de6e25abf875a]::interface::run_compiler<core[93d19b53d5db826e]::result::Result<(), rustc_span[b5f51429c77c489e]::ErrorGuaranteed>, rustdoc[8e8bb84a9b960d27]::main_args::{closure#1}>::{closure#0}, core[93d19b53d5db826e]::result::Result<(), rustc_span[b5f51429c77c489e]::ErrorGuaranteed>>::{closure#0}, core[93d19b53d5db826e]::result::Result<(), rustc_span[b5f51429c77c489e]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[93d19b53d5db826e]::result::Result<(), rustc_span[b5f51429c77c489e]::ErrorGuaranteed>>
  53:        0x1021e8830 - <<std[362851305dc41231]::thread::Builder>::spawn_unchecked_<rustc_interface[f65de6e25abf875a]::util::run_in_thread_with_globals<rustc_interface[f65de6e25abf875a]::util::run_in_thread_pool_with_globals<rustc_interface[f65de6e25abf875a]::interface::run_compiler<core[93d19b53d5db826e]::result::Result<(), rustc_span[b5f51429c77c489e]::ErrorGuaranteed>, rustdoc[8e8bb84a9b960d27]::main_args::{closure#1}>::{closure#0}, core[93d19b53d5db826e]::result::Result<(), rustc_span[b5f51429c77c489e]::ErrorGuaranteed>>::{closure#0}, core[93d19b53d5db826e]::result::Result<(), rustc_span[b5f51429c77c489e]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[93d19b53d5db826e]::result::Result<(), rustc_span[b5f51429c77c489e]::ErrorGuaranteed>>::{closure#1} as core[93d19b53d5db826e]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  54:        0x103c4bc30 - std::sys::unix::thread::Thread::new::thread_start::h1123e84c80816a72
  55:        0x18d6b5034 - __pthread_joiner_wake


rustc version: 1.76.0-nightly (e9013ac0e 2023-12-05)
platform: aarch64-apple-darwin

query stack during panic:
#0 [evaluate_obligation] evaluating trait selection obligation `<pool::best::BestTransactionsWithBasefee<^1_0> as core::iter::traits::iterator::Iterator>::Item: core::marker::Send`
end of query stack