thread 'rustc' (1332607) panicked at /rustc-dev/eff8269f797067c30555e77f160ec84c0ed15cd9/compiler/rustc_trait_selection/src/traits/normalize.rs:178:9:
Normalizing Binder { value: TraitPredicate(<impl Cap<'a> + std::iter::IntoIterator<Item = impl Cap<'a>> as std::marker::Sized>, polarity:Positive), bound_vars: [] } without wrapping in a `Binder`
stack backtrace:
0: 0x7f822e450a16 - <<std[2a8c3cd46992084f]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[f0447a45d83adb47]::fmt::Display>::fmt
1: 0x7f822ea0ec88 - core[f0447a45d83adb47]::fmt::write
2: 0x7f822e465c7c - <std[2a8c3cd46992084f]::sys::stdio::unix::Stderr as core[f0447a45d83adb47]::io::write::Write>::write_fmt
3: 0x7f822e4226aa - std[2a8c3cd46992084f]::panicking::default_hook::{closure#0}
4: 0x7f822e443143 - std[2a8c3cd46992084f]::panicking::default_hook
5: 0x7f822d3fc04b - std[2a8c3cd46992084f]::panicking::update_hook::<alloc[4a894a599ddd1b2d]::boxed::Box<rustc_driver_impl[c2a64f8504684822]::install_ice_hook::{closure#1}>>::{closure#0}
6: 0x7f822e4435e2 - std[2a8c3cd46992084f]::panicking::panic_with_hook
7: 0x7f822e422762 - std[2a8c3cd46992084f]::panicking::panic_handler::{closure#0}
8: 0x7f822e419509 - std[2a8c3cd46992084f]::sys::backtrace::__rust_end_short_backtrace::<std[2a8c3cd46992084f]::panicking::panic_handler::{closure#0}, !>
9: 0x7f822e4240bd - __rustc[4368d8ad29db066c]::rust_begin_unwind
10: 0x7f822b1de9fc - core[f0447a45d83adb47]::panicking::panic_fmt
11: 0x7f822f088b08 - <rustc_trait_selection[230890ec563485ea]::traits::fulfill::FulfillProcessor as rustc_data_structures[6044b2f767527520]::obligation_forest::ObligationProcessor>::process_obligation
12: 0x7f822ea05b11 - <rustc_data_structures[6044b2f767527520]::obligation_forest::ObligationForest<rustc_trait_selection[230890ec563485ea]::traits::fulfill::PendingPredicateObligation>>::process_obligations::<rustc_trait_selection[230890ec563485ea]::traits::fulfill::FulfillProcessor>
13: 0x7f822efb671a - <rustc_trait_selection[230890ec563485ea]::traits::fulfill::FulfillmentContext<rustc_infer[d64cf6f2c5f08818]::traits::engine::ScrubbedTraitError> as rustc_infer[d64cf6f2c5f08818]::traits::engine::TraitEngine<rustc_infer[d64cf6f2c5f08818]::traits::engine::ScrubbedTraitError>>::try_evaluate_obligations
14: 0x7f822e141139 - <rustc_infer[d64cf6f2c5f08818]::infer::InferCtxt>::probe::<bool, <rustc_infer[d64cf6f2c5f08818]::infer::InferCtxt as rustc_trait_selection[230890ec563485ea]::infer::InferCtxtExt>::can_eq<rustc_middle[96c442875f2cb62c]::ty::Ty>::{closure#0}>
15: 0x7f822e17cbc8 - <rustc_trait_selection[230890ec563485ea]::error_reporting::TypeErrCtxt>::point_at_chain_in_return_position::<rustc_span[157f53c51de8f998]::ErrorGuaranteed>
16: 0x7f822e160360 - <rustc_trait_selection[230890ec563485ea]::error_reporting::TypeErrCtxt>::note_obligation_cause_code::<rustc_span[157f53c51de8f998]::ErrorGuaranteed, rustc_type_ir[441055e7503a0c70]::binder::Binder<rustc_middle[96c442875f2cb62c]::ty::context::TyCtxt, rustc_type_ir[441055e7503a0c70]::predicate::TraitPredicate<rustc_middle[96c442875f2cb62c]::ty::context::TyCtxt>>>
17: 0x7f822e173c5b - <rustc_trait_selection[230890ec563485ea]::error_reporting::TypeErrCtxt>::note_obligation_cause_code::<rustc_span[157f53c51de8f998]::ErrorGuaranteed, rustc_middle[96c442875f2cb62c]::ty::predicate::Predicate>
18: 0x7f822e27217e - <rustc_trait_selection[230890ec563485ea]::error_reporting::TypeErrCtxt>::note_obligation_cause
19: 0x7f822e2604b8 - <rustc_trait_selection[230890ec563485ea]::error_reporting::TypeErrCtxt>::report_selection_error
20: 0x7f822e287d7b - <rustc_trait_selection[230890ec563485ea]::error_reporting::TypeErrCtxt>::report_fulfillment_error
21: 0x7f822cd0d47c - <rustc_trait_selection[230890ec563485ea]::error_reporting::TypeErrCtxt>::report_fulfillment_errors
22: 0x7f822ed6dc77 - rustc_hir_typeck[ece4cbaa28ff66ee]::check::check_fn
23: 0x7f822fbc6812 - rustc_hir_typeck[ece4cbaa28ff66ee]::typeck_with_inspect::{closure#0}
24: 0x7f822fbc5130 - rustc_query_impl[5a309cdb9f26d392]::query_impl::typeck_root::invoke_provider_fn::__rust_begin_short_backtrace
25: 0x7f822f018469 - rustc_query_impl[5a309cdb9f26d392]::execution::try_execute_query::<rustc_data_structures[6044b2f767527520]::vec_cache::VecCache<rustc_span[157f53c51de8f998]::def_id::LocalDefId, rustc_middle[96c442875f2cb62c]::query::erase::ErasedData<[u8; 8usize]>, rustc_middle[96c442875f2cb62c]::dep_graph::graph::DepNodeIndex>, false>
26: 0x7f822f017ec3 - rustc_query_impl[5a309cdb9f26d392]::query_impl::typeck_root::execute_query_non_incr::__rust_end_short_backtrace
27: 0x7f822f01f7d2 - rustc_mir_build[a2a0e438146d30c5]::thir::pattern::check_match::check_match
28: 0x7f822f01e907 - rustc_query_impl[5a309cdb9f26d392]::query_impl::check_match::invoke_provider_fn::__rust_begin_short_backtrace
29: 0x7f822f4e87d3 - rustc_query_impl[5a309cdb9f26d392]::execution::try_execute_query::<rustc_data_structures[6044b2f767527520]::vec_cache::VecCache<rustc_span[157f53c51de8f998]::def_id::LocalDefId, rustc_middle[96c442875f2cb62c]::query::erase::ErasedData<[u8; 1usize]>, rustc_middle[96c442875f2cb62c]::dep_graph::graph::DepNodeIndex>, false>
30: 0x7f822f4e8436 - rustc_query_impl[5a309cdb9f26d392]::query_impl::check_match::execute_query_non_incr::__rust_end_short_backtrace
31: 0x7f822f3d8013 - rustc_mir_build[a2a0e438146d30c5]::builder::build_mir_inner_impl
32: 0x7f822ea101aa - rustc_mir_transform[b9926d443c571f20]::mir_built
33: 0x7f822f018469 - rustc_query_impl[5a309cdb9f26d392]::execution::try_execute_query::<rustc_data_structures[6044b2f767527520]::vec_cache::VecCache<rustc_span[157f53c51de8f998]::def_id::LocalDefId, rustc_middle[96c442875f2cb62c]::query::erase::ErasedData<[u8; 8usize]>, rustc_middle[96c442875f2cb62c]::dep_graph::graph::DepNodeIndex>, false>
34: 0x7f822f018043 - rustc_query_impl[5a309cdb9f26d392]::query_impl::mir_built::execute_query_non_incr::__rust_end_short_backtrace
35: 0x7f822ea231bf - rustc_mir_transform[b9926d443c571f20]::ffi_unwind_calls::has_ffi_unwind_calls
36: 0x7f822ea22c07 - rustc_query_impl[5a309cdb9f26d392]::query_impl::has_ffi_unwind_calls::invoke_provider_fn::__rust_begin_short_backtrace
37: 0x7f822f4e87d3 - rustc_query_impl[5a309cdb9f26d392]::execution::try_execute_query::<rustc_data_structures[6044b2f767527520]::vec_cache::VecCache<rustc_span[157f53c51de8f998]::def_id::LocalDefId, rustc_middle[96c442875f2cb62c]::query::erase::ErasedData<[u8; 1usize]>, rustc_middle[96c442875f2cb62c]::dep_graph::graph::DepNodeIndex>, false>
38: 0x7f822f4e838e - rustc_query_impl[5a309cdb9f26d392]::query_impl::has_ffi_unwind_calls::execute_query_non_incr::__rust_end_short_backtrace
39: 0x7f822f4c1212 - rustc_mir_transform[b9926d443c571f20]::mir_promoted
40: 0x7f822f4c1092 - rustc_query_impl[5a309cdb9f26d392]::query_impl::mir_promoted::invoke_provider_fn::__rust_begin_short_backtrace
41: 0x7f822ed7e541 - rustc_query_impl[5a309cdb9f26d392]::execution::try_execute_query::<rustc_data_structures[6044b2f767527520]::vec_cache::VecCache<rustc_span[157f53c51de8f998]::def_id::LocalDefId, rustc_middle[96c442875f2cb62c]::query::erase::ErasedData<[u8; 16usize]>, rustc_middle[96c442875f2cb62c]::dep_graph::graph::DepNodeIndex>, false>
42: 0x7f822f01c343 - rustc_query_impl[5a309cdb9f26d392]::query_impl::mir_promoted::execute_query_non_incr::__rust_end_short_backtrace
43: 0x7f822f01c527 - rustc_borrowck[4bfdb94eea9b8329]::mir_borrowck
44: 0x7f822f01c425 - rustc_query_impl[5a309cdb9f26d392]::query_impl::mir_borrowck::invoke_provider_fn::__rust_begin_short_backtrace
45: 0x7f822f018469 - rustc_query_impl[5a309cdb9f26d392]::execution::try_execute_query::<rustc_data_structures[6044b2f767527520]::vec_cache::VecCache<rustc_span[157f53c51de8f998]::def_id::LocalDefId, rustc_middle[96c442875f2cb62c]::query::erase::ErasedData<[u8; 8usize]>, rustc_middle[96c442875f2cb62c]::dep_graph::graph::DepNodeIndex>, false>
46: 0x7f822f015b53 - rustc_query_impl[5a309cdb9f26d392]::query_impl::mir_borrowck::execute_query_non_incr::__rust_end_short_backtrace
47: 0x7f822fb5591d - rustc_hir_analysis[e34517a71420646b]::collect::type_of::opaque::find_opaque_ty_constraints_for_rpit
48: 0x7f822fb5562a - rustc_hir_analysis[e34517a71420646b]::collect::type_of::type_of_opaque
49: 0x7f822ea47f4d - rustc_query_impl[5a309cdb9f26d392]::execution::try_execute_query::<rustc_middle[96c442875f2cb62c]::query::caches::DefIdCache<rustc_middle[96c442875f2cb62c]::query::erase::ErasedData<[u8; 8usize]>>, false>
50: 0x7f822fb4075a - rustc_query_impl[5a309cdb9f26d392]::query_impl::type_of_opaque::execute_query_non_incr::__rust_end_short_backtrace
51: 0x7f822ee26e5f - rustc_hir_analysis[e34517a71420646b]::collect::type_of::type_of
52: 0x7f822eb34ebc - rustc_query_impl[5a309cdb9f26d392]::query_impl::type_of::invoke_provider_fn::__rust_begin_short_backtrace
53: 0x7f822ea47f4d - rustc_query_impl[5a309cdb9f26d392]::execution::try_execute_query::<rustc_middle[96c442875f2cb62c]::query::caches::DefIdCache<rustc_middle[96c442875f2cb62c]::query::erase::ErasedData<[u8; 8usize]>>, false>
54: 0x7f822ea47ad0 - rustc_query_impl[5a309cdb9f26d392]::query_impl::type_of::execute_query_non_incr::__rust_end_short_backtrace
55: 0x7f822fb571cf - rustc_hir_analysis[e34517a71420646b]::check::check::check_opaque
56: 0x7f822f5079fa - rustc_hir_analysis[e34517a71420646b]::check::check::check_item_type
57: 0x7f822f4e921c - rustc_hir_analysis[e34517a71420646b]::check::wfcheck::check_well_formed
58: 0x7f822f4e91ed - rustc_query_impl[5a309cdb9f26d392]::query_impl::check_well_formed::invoke_provider_fn::__rust_begin_short_backtrace
59: 0x7f822f4e87d3 - rustc_query_impl[5a309cdb9f26d392]::execution::try_execute_query::<rustc_data_structures[6044b2f767527520]::vec_cache::VecCache<rustc_span[157f53c51de8f998]::def_id::LocalDefId, rustc_middle[96c442875f2cb62c]::query::erase::ErasedData<[u8; 1usize]>, rustc_middle[96c442875f2cb62c]::dep_graph::graph::DepNodeIndex>, false>
60: 0x7f822f4e8553 - rustc_query_impl[5a309cdb9f26d392]::query_impl::check_well_formed::execute_query_non_incr::__rust_end_short_backtrace
61: 0x7f822f4e50cf - rustc_hir_analysis[e34517a71420646b]::check::wfcheck::check_type_wf
62: 0x7f822f4e4f4f - rustc_query_impl[5a309cdb9f26d392]::query_impl::check_type_wf::invoke_provider_fn::__rust_begin_short_backtrace
63: 0x7f822fb48e92 - rustc_query_impl[5a309cdb9f26d392]::execution::try_execute_query::<rustc_middle[96c442875f2cb62c]::query::caches::SingleCache<rustc_middle[96c442875f2cb62c]::query::erase::ErasedData<[u8; 1usize]>>, false>
64: 0x7f822fb48c77 - rustc_query_impl[5a309cdb9f26d392]::query_impl::check_type_wf::execute_query_non_incr::__rust_end_short_backtrace
65: 0x7f822f019c9a - rustc_hir_analysis[e34517a71420646b]::check_crate
66: 0x7f822f014bf5 - rustc_interface[bb04609e4c960450]::passes::analysis
67: 0x7f822fb474c7 - rustc_query_impl[5a309cdb9f26d392]::execution::try_execute_query::<rustc_middle[96c442875f2cb62c]::query::caches::SingleCache<rustc_middle[96c442875f2cb62c]::query::erase::ErasedData<[u8; 0usize]>>, false>
68: 0x7f822fb47129 - rustc_query_impl[5a309cdb9f26d392]::query_impl::analysis::execute_query_non_incr::__rust_end_short_backtrace
69: 0x7f822fb0464d - rustc_interface[bb04609e4c960450]::interface::run_compiler::<(), rustc_driver_impl[c2a64f8504684822]::run_compiler::{closure#0}>::{closure#2}
70: 0x7f822fb72ae4 - std[2a8c3cd46992084f]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[bb04609e4c960450]::util::run_in_thread_with_globals<rustc_interface[bb04609e4c960450]::util::run_in_thread_pool_with_globals<rustc_interface[bb04609e4c960450]::interface::run_compiler<(), rustc_driver_impl[c2a64f8504684822]::run_compiler::{closure#0}>::{closure#2}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>
71: 0x7f822fb728bb - <std[2a8c3cd46992084f]::thread::lifecycle::spawn_unchecked<rustc_interface[bb04609e4c960450]::util::run_in_thread_with_globals<rustc_interface[bb04609e4c960450]::util::run_in_thread_pool_with_globals<rustc_interface[bb04609e4c960450]::interface::run_compiler<(), rustc_driver_impl[c2a64f8504684822]::run_compiler::{closure#0}>::{closure#2}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[f0447a45d83adb47]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
72: 0x7f822fb7cec8 - <std[2a8c3cd46992084f]::sys::thread::unix::Thread>::new::thread_start
73: 0x7f8229497739 - <unknown>
74: 0x7f822951bedc - <unknown>
75: 0x0 - <unknown>
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: please make sure that you have updated to the latest nightly
note: please attach the file at `/home/matthias/vcs/github/CRED/rustc-ice-2026-07-19T10_34_14-1332597.txt` to your bug report
note: rustc 1.99.0-nightly (eff8269f7 2026-07-18) running on x86_64-unknown-linux-gnu
query stack during panic:
#0 [typeck_root] type-checking `fail_late_bound`
#1 [check_match] match-checking `fail_late_bound`
#2 [mir_built] building MIR for `fail_late_bound`
#3 [has_ffi_unwind_calls] checking if `fail_late_bound` contains FFI-unwind calls
#4 [mir_promoted] promoting constants in MIR for `fail_late_bound`
#5 [mir_borrowck] borrow-checking `fail_late_bound`
#6 [type_of_opaque] computing type of opaque `fail_late_bound::{opaque#0}`
#7 [type_of] computing type of `fail_late_bound::{opaque#0}`
#8 [check_well_formed] checking that `fail_late_bound::{opaque#0}` is well-formed
#9 [check_type_wf] checking that types are well-formed
#10 [analysis] running analysis passes on crate `code`
end of query stack
note: no errors encountered even though delayed bugs were created
note: those delayed bugs will now be shown as internal compiler errors
error: internal compiler error: TyKind::Error constructed but no error reported
|
= note: delayed at /rustc-dev/eff8269f797067c30555e77f160ec84c0ed15cd9/compiler/rustc_trait_selection/src/error_reporting/traits/suggestions.rs:5538:65
0: <rustc_errors::DiagCtxtInner>::emit_diagnostic
1: <rustc_errors::DiagCtxtHandle>::emit_diagnostic
2: <rustc_span::ErrorGuaranteed as rustc_errors::diagnostic::EmissionGuarantee>::emit_producing_guarantee
3: <rustc_errors::DiagCtxtHandle>::span_delayed_bug::<rustc_span::span_encoding::Span, &str>
4: <rustc_middle::ty::Ty>::new_misc_error
5: <rustc_trait_selection::error_reporting::TypeErrCtxt>::point_at_chain_in_return_position::<rustc_span::ErrorGuaranteed>
6: <rustc_trait_selection::error_reporting::TypeErrCtxt>::note_obligation_cause_code::<rustc_span::ErrorGuaranteed, rustc_type_ir::binder::Binder<rustc_middle::ty::context::TyCtxt, rustc_type_ir::predicate::TraitPredicate<rustc_middle::ty::context::TyCtxt>>>
7: <rustc_trait_selection::error_reporting::TypeErrCtxt>::note_obligation_cause_code::<rustc_span::ErrorGuaranteed, rustc_middle::ty::predicate::Predicate>
8: <rustc_trait_selection::error_reporting::TypeErrCtxt>::note_obligation_cause
9: <rustc_trait_selection::error_reporting::TypeErrCtxt>::report_selection_error
10: <rustc_trait_selection::error_reporting::TypeErrCtxt>::report_fulfillment_error
11: <rustc_trait_selection::error_reporting::TypeErrCtxt>::report_fulfillment_errors
12: rustc_hir_typeck::check::check_fn
13: rustc_hir_typeck::typeck_with_inspect::{closure#0}
14: rustc_query_impl::query_impl::typeck_root::invoke_provider_fn::__rust_begin_short_backtrace
15: rustc_query_impl::execution::try_execute_query::<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::ErasedData<[u8; 8]>, rustc_middle::dep_graph::graph::DepNodeIndex>, false>
16: rustc_query_impl::query_impl::typeck_root::execute_query_non_incr::__rust_end_short_backtrace
17: rustc_mir_build::thir::pattern::check_match::check_match
18: rustc_query_impl::query_impl::check_match::invoke_provider_fn::__rust_begin_short_backtrace
19: rustc_query_impl::execution::try_execute_query::<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::ErasedData<[u8; 1]>, rustc_middle::dep_graph::graph::DepNodeIndex>, false>
20: rustc_query_impl::query_impl::check_match::execute_query_non_incr::__rust_end_short_backtrace
21: rustc_mir_build::builder::build_mir_inner_impl
22: rustc_mir_transform::mir_built
23: rustc_query_impl::execution::try_execute_query::<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::ErasedData<[u8; 8]>, rustc_middle::dep_graph::graph::DepNodeIndex>, false>
24: rustc_query_impl::query_impl::mir_built::execute_query_non_incr::__rust_end_short_backtrace
25: rustc_mir_transform::ffi_unwind_calls::has_ffi_unwind_calls
26: rustc_query_impl::query_impl::has_ffi_unwind_calls::invoke_provider_fn::__rust_begin_short_backtrace
27: rustc_query_impl::execution::try_execute_query::<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::ErasedData<[u8; 1]>, rustc_middle::dep_graph::graph::DepNodeIndex>, false>
28: rustc_query_impl::query_impl::has_ffi_unwind_calls::execute_query_non_incr::__rust_end_short_backtrace
29: rustc_mir_transform::mir_promoted
30: rustc_query_impl::query_impl::mir_promoted::invoke_provider_fn::__rust_begin_short_backtrace
31: rustc_query_impl::execution::try_execute_query::<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::ErasedData<[u8; 16]>, rustc_middle::dep_graph::graph::DepNodeIndex>, false>
32: rustc_query_impl::query_impl::mir_promoted::execute_query_non_incr::__rust_end_short_backtrace
33: rustc_borrowck::mir_borrowck
34: rustc_query_impl::query_impl::mir_borrowck::invoke_provider_fn::__rust_begin_short_backtrace
35: rustc_query_impl::execution::try_execute_query::<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::ErasedData<[u8; 8]>, rustc_middle::dep_graph::graph::DepNodeIndex>, false>
36: rustc_query_impl::query_impl::mir_borrowck::execute_query_non_incr::__rust_end_short_backtrace
37: rustc_hir_analysis::collect::type_of::opaque::find_opaque_ty_constraints_for_rpit
38: rustc_hir_analysis::collect::type_of::type_of_opaque
39: rustc_query_impl::execution::try_execute_query::<rustc_middle::query::caches::DefIdCache<rustc_middle::query::erase::ErasedData<[u8; 8]>>, false>
40: rustc_query_impl::query_impl::type_of_opaque::execute_query_non_incr::__rust_end_short_backtrace
41: rustc_hir_analysis::collect::type_of::type_of
42: rustc_query_impl::query_impl::type_of::invoke_provider_fn::__rust_begin_short_backtrace
43: rustc_query_impl::execution::try_execute_query::<rustc_middle::query::caches::DefIdCache<rustc_middle::query::erase::ErasedData<[u8; 8]>>, false>
44: rustc_query_impl::query_impl::type_of::execute_query_non_incr::__rust_end_short_backtrace
45: rustc_hir_analysis::check::check::check_opaque
46: rustc_hir_analysis::check::check::check_item_type
47: rustc_hir_analysis::check::wfcheck::check_well_formed
48: rustc_query_impl::query_impl::check_well_formed::invoke_provider_fn::__rust_begin_short_backtrace
49: rustc_query_impl::execution::try_execute_query::<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::ErasedData<[u8; 1]>, rustc_middle::dep_graph::graph::DepNodeIndex>, false>
50: rustc_query_impl::query_impl::check_well_formed::execute_query_non_incr::__rust_end_short_backtrace
51: rustc_hir_analysis::check::wfcheck::check_type_wf
52: rustc_query_impl::query_impl::check_type_wf::invoke_provider_fn::__rust_begin_short_backtrace
53: rustc_query_impl::execution::try_execute_query::<rustc_middle::query::caches::SingleCache<rustc_middle::query::erase::ErasedData<[u8; 1]>>, false>
54: rustc_query_impl::query_impl::check_type_wf::execute_query_non_incr::__rust_end_short_backtrace
55: rustc_hir_analysis::check_crate
56: rustc_interface::passes::analysis
57: rustc_query_impl::execution::try_execute_query::<rustc_middle::query::caches::SingleCache<rustc_middle::query::erase::ErasedData<[u8; 0]>>, false>
58: rustc_query_impl::query_impl::analysis::execute_query_non_incr::__rust_end_short_backtrace
59: rustc_interface::interface::run_compiler::<(), rustc_driver_impl::run_compiler::{closure#0}>::{closure#2}
60: std::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface::util::run_in_thread_with_globals<rustc_interface::util::run_in_thread_pool_with_globals<rustc_interface::interface::run_compiler<(), rustc_driver_impl::run_compiler::{closure#0}>::{closure#2}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>
61: <std::thread::lifecycle::spawn_unchecked<rustc_interface::util::run_in_thread_with_globals<rustc_interface::util::run_in_thread_pool_with_globals<rustc_interface::interface::run_compiler<(), rustc_driver_impl::run_compiler::{closure#0}>::{closure#2}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
62: <std::sys::thread::unix::Thread>::new::thread_start
63: <unknown>
64: <unknown>
error: internal compiler error: OpaqueTypeStorage { opaque_types: {OpaqueTypeKey { def_id: DefId(0:9 ~ code[b566]::fail_late_bound::{opaque#0}), args: [ReLateParam(DefId(0:7 ~ code[b566]::fail_late_bound), LateNamed(DefId(0:8 ~ code[b566]::fail_late_bound::'a)))] }: ProvisionalHiddenType { span: code.rs:8:6: 8:80 (#4), ty: ?0t }, OpaqueTypeKey { def_id: DefId(0:10 ~ code[b566]::fail_late_bound::{opaque#0}::{opaque#0}), args: [ReLateParam(DefId(0:7 ~ code[b566]::fail_late_bound), LateNamed(DefId(0:8 ~ code[b566]::fail_late_bound::'a)))] }: ProvisionalHiddenType { span: code.rs:8:31: 8:79 (#5), ty: ?5t }, OpaqueTypeKey { def_id: DefId(0:11 ~ code[b566]::fail_late_bound::{opaque#0}::{opaque#0}::{opaque#0}), args: [ReLateParam(DefId(0:7 ~ code[b566]::fail_late_bound), LateNamed(DefId(0:8 ~ code[b566]::fail_late_bound::'a)))] }: ProvisionalHiddenType { span: code.rs:8:66: 8:78 (#6), ty: ?10t }, OpaqueTypeKey { def_id: DefId(0:10 ~ code[b566]::fail_late_bound::{opaque#0}::{opaque#0}), args: ['^1_0.Named(DefId(0:8 ~ code[b566]::fail_late_bound::'a))] }: ProvisionalHiddenType { span: no-location (#0), ty: &'?0 u8 }}, duplicate_entries: [] }
|
= note: delayed at /rustc-dev/eff8269f797067c30555e77f160ec84c0ed15cd9/compiler/rustc_infer/src/infer/mod.rs:369:43
0: <rustc_errors::DiagCtxtInner>::emit_diagnostic
1: <rustc_errors::DiagCtxtHandle>::emit_diagnostic
2: <rustc_span::ErrorGuaranteed as rustc_errors::diagnostic::EmissionGuarantee>::emit_producing_guarantee
3: <rustc_errors::DiagCtxtHandle>::delayed_bug::<alloc::string::String>
4: core::ptr::drop_glue::<rustc_hir_typeck::typeck_root_ctxt::TypeckRootCtxt>
5: rustc_hir_typeck::typeck_with_inspect::{closure#0}
6: rustc_query_impl::query_impl::typeck_root::invoke_provider_fn::__rust_begin_short_backtrace
7: rustc_query_impl::execution::try_execute_query::<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::ErasedData<[u8; 8]>, rustc_middle::dep_graph::graph::DepNodeIndex>, false>
8: rustc_query_impl::query_impl::typeck_root::execute_query_non_incr::__rust_end_short_backtrace
9: rustc_mir_build::thir::pattern::check_match::check_match
10: rustc_query_impl::query_impl::check_match::invoke_provider_fn::__rust_begin_short_backtrace
11: rustc_query_impl::execution::try_execute_query::<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::ErasedData<[u8; 1]>, rustc_middle::dep_graph::graph::DepNodeIndex>, false>
12: rustc_query_impl::query_impl::check_match::execute_query_non_incr::__rust_end_short_backtrace
13: rustc_mir_build::builder::build_mir_inner_impl
14: rustc_mir_transform::mir_built
15: rustc_query_impl::execution::try_execute_query::<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::ErasedData<[u8; 8]>, rustc_middle::dep_graph::graph::DepNodeIndex>, false>
16: rustc_query_impl::query_impl::mir_built::execute_query_non_incr::__rust_end_short_backtrace
17: rustc_mir_transform::ffi_unwind_calls::has_ffi_unwind_calls
18: rustc_query_impl::query_impl::has_ffi_unwind_calls::invoke_provider_fn::__rust_begin_short_backtrace
19: rustc_query_impl::execution::try_execute_query::<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::ErasedData<[u8; 1]>, rustc_middle::dep_graph::graph::DepNodeIndex>, false>
20: rustc_query_impl::query_impl::has_ffi_unwind_calls::execute_query_non_incr::__rust_end_short_backtrace
21: rustc_mir_transform::mir_promoted
22: rustc_query_impl::query_impl::mir_promoted::invoke_provider_fn::__rust_begin_short_backtrace
23: rustc_query_impl::execution::try_execute_query::<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::ErasedData<[u8; 16]>, rustc_middle::dep_graph::graph::DepNodeIndex>, false>
24: rustc_query_impl::query_impl::mir_promoted::execute_query_non_incr::__rust_end_short_backtrace
25: rustc_borrowck::mir_borrowck
26: rustc_query_impl::query_impl::mir_borrowck::invoke_provider_fn::__rust_begin_short_backtrace
27: rustc_query_impl::execution::try_execute_query::<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::ErasedData<[u8; 8]>, rustc_middle::dep_graph::graph::DepNodeIndex>, false>
28: rustc_query_impl::query_impl::mir_borrowck::execute_query_non_incr::__rust_end_short_backtrace
29: rustc_hir_analysis::collect::type_of::opaque::find_opaque_ty_constraints_for_rpit
30: rustc_hir_analysis::collect::type_of::type_of_opaque
31: rustc_query_impl::execution::try_execute_query::<rustc_middle::query::caches::DefIdCache<rustc_middle::query::erase::ErasedData<[u8; 8]>>, false>
32: rustc_query_impl::query_impl::type_of_opaque::execute_query_non_incr::__rust_end_short_backtrace
33: rustc_hir_analysis::collect::type_of::type_of
34: rustc_query_impl::query_impl::type_of::invoke_provider_fn::__rust_begin_short_backtrace
35: rustc_query_impl::execution::try_execute_query::<rustc_middle::query::caches::DefIdCache<rustc_middle::query::erase::ErasedData<[u8; 8]>>, false>
36: rustc_query_impl::query_impl::type_of::execute_query_non_incr::__rust_end_short_backtrace
37: rustc_hir_analysis::check::check::check_opaque
38: rustc_hir_analysis::check::check::check_item_type
39: rustc_hir_analysis::check::wfcheck::check_well_formed
40: rustc_query_impl::query_impl::check_well_formed::invoke_provider_fn::__rust_begin_short_backtrace
41: rustc_query_impl::execution::try_execute_query::<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::ErasedData<[u8; 1]>, rustc_middle::dep_graph::graph::DepNodeIndex>, false>
42: rustc_query_impl::query_impl::check_well_formed::execute_query_non_incr::__rust_end_short_backtrace
43: rustc_hir_analysis::check::wfcheck::check_type_wf
44: rustc_query_impl::query_impl::check_type_wf::invoke_provider_fn::__rust_begin_short_backtrace
45: rustc_query_impl::execution::try_execute_query::<rustc_middle::query::caches::SingleCache<rustc_middle::query::erase::ErasedData<[u8; 1]>>, false>
46: rustc_query_impl::query_impl::check_type_wf::execute_query_non_incr::__rust_end_short_backtrace
47: rustc_hir_analysis::check_crate
48: rustc_interface::passes::analysis
49: rustc_query_impl::execution::try_execute_query::<rustc_middle::query::caches::SingleCache<rustc_middle::query::erase::ErasedData<[u8; 0]>>, false>
50: rustc_query_impl::query_impl::analysis::execute_query_non_incr::__rust_end_short_backtrace
51: rustc_interface::interface::run_compiler::<(), rustc_driver_impl::run_compiler::{closure#0}>::{closure#2}
52: std::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface::util::run_in_thread_with_globals<rustc_interface::util::run_in_thread_pool_with_globals<rustc_interface::interface::run_compiler<(), rustc_driver_impl::run_compiler::{closure#0}>::{closure#2}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>
53: <std::thread::lifecycle::spawn_unchecked<rustc_interface::util::run_in_thread_with_globals<rustc_interface::util::run_in_thread_pool_with_globals<rustc_interface::interface::run_compiler<(), rustc_driver_impl::run_compiler::{closure#0}>::{closure#2}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
54: <std::sys::thread::unix::Thread>::new::thread_start
55: <unknown>
56: <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-2026-07-19T10_34_14-1332597.txt` to your bug report
note: rustc 1.99.0-nightly (eff8269f7 2026-07-18) running on x86_64-unknown-linux-gnu
query stack during panic:
end of query stack
Code
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rustc --version --verbose:Error output
Backtrace