rustc 1.85.0-nightly (4d669fb34 2024-12-08)
binary: rustc
commit-hash: 4d669fb34e7db6f3825d01e4c59b7996f0531431
commit-date: 2024-12-08
host: aarch64-apple-darwin
release: 1.85.0-nightly
LLVM version: 19.1.5

thread 'rustc' panicked at compiler/rustc_lint/src/types.rs:826:17:
Box<dyn Any>

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 `/Users/roger/abi_stable_crates/rustc-ice-2024-12-09T08_30_49-37982.txt` to your bug report

note: compiler flags: --crate-type lib -C opt-level=3 -C embed-bitcode=no -C strip=debuginfo

query stack during panic:
#0 [lint_mod] linting module `for_examples`
#1 [analysis] running analysis passes on this crate
end of query stack

stack backtrace:
   0:        0x10e93e06c - std::backtrace::Backtrace::create::h90b3a37c4940e011
   1:        0x10cb8702c - std[bfb5b6abee616caa]::panicking::update_hook::<alloc[aa8ae451eb0c4d50]::boxed::Box<rustc_driver_impl[46652df33ae3cf4a]::install_ice_hook::{closure#0}>>::{closure#0}
   2:        0x10e958e9c - std::panicking::rust_panic_with_hook::h54f99cba33941c4e
   3:        0x10cbfdf58 - std[bfb5b6abee616caa]::panicking::begin_panic::<rustc_errors[683f32f756a2cf24]::ExplicitBug>::{closure#0}
   4:        0x10cbee00c - std[bfb5b6abee616caa]::sys::backtrace::__rust_end_short_backtrace::<std[bfb5b6abee616caa]::panicking::begin_panic<rustc_errors[683f32f756a2cf24]::ExplicitBug>::{closure#0}, !>
   5:        0x11108d704 - std[bfb5b6abee616caa]::panicking::begin_panic::<rustc_errors[683f32f756a2cf24]::ExplicitBug>
   6:        0x10cc122d0 - <rustc_errors[683f32f756a2cf24]::diagnostic::BugAbort as rustc_errors[683f32f756a2cf24]::diagnostic::EmissionGuarantee>::emit_producing_guarantee
   7:        0x10d818e44 - rustc_middle[822ae551961f0a2a]::util::bug::opt_span_bug_fmt::<rustc_span[7205846256d90284]::span_encoding::Span>::{closure#0}
   8:        0x10d7da458 - rustc_middle[822ae551961f0a2a]::ty::context::tls::with_opt::<rustc_middle[822ae551961f0a2a]::util::bug::opt_span_bug_fmt<rustc_span[7205846256d90284]::span_encoding::Span>::{closure#0}, !>::{closure#0}
   9:        0x10d7d9870 - rustc_middle[822ae551961f0a2a]::ty::context::tls::with_context_opt::<rustc_middle[822ae551961f0a2a]::ty::context::tls::with_opt<rustc_middle[822ae551961f0a2a]::util::bug::opt_span_bug_fmt<rustc_span[7205846256d90284]::span_encoding::Span>::{closure#0}, !>::{closure#0}, !>
  10:        0x111100380 - rustc_middle[822ae551961f0a2a]::util::bug::bug_fmt
  11:        0x10d564428 - rustc_lint[66f12495879f0b66]::types::get_type_sizedness
  12:        0x10d565754 - <rustc_lint[66f12495879f0b66]::types::ImproperCTypesVisitor>::check_type_for_ffi
  13:        0x10d565fd4 - <rustc_lint[66f12495879f0b66]::types::ImproperCTypesVisitor>::check_type_for_ffi
  14:        0x10d566c18 - <rustc_lint[66f12495879f0b66]::types::ImproperCTypesVisitor>::check_type_for_ffi_and_report_errors
  15:        0x10d5408d0 - <rustc_lint[66f12495879f0b66]::late::LateContextAndPass<rustc_lint[66f12495879f0b66]::BuiltinCombinedModuleLateLintPass>>::with_lint_attrs::<<rustc_lint[66f12495879f0b66]::late::LateContextAndPass<rustc_lint[66f12495879f0b66]::BuiltinCombinedModuleLateLintPass> as rustc_hir[2a7c6889d61180d3]::intravisit::Visitor>::visit_field_def::{closure#0}>
  16:        0x10d479cd0 - rustc_hir[2a7c6889d61180d3]::intravisit::walk_item::<rustc_lint[66f12495879f0b66]::late::LateContextAndPass<rustc_lint[66f12495879f0b66]::BuiltinCombinedModuleLateLintPass>>
  17:        0x10d5135f8 - <rustc_lint[66f12495879f0b66]::late::LateContextAndPass<rustc_lint[66f12495879f0b66]::BuiltinCombinedModuleLateLintPass> as rustc_hir[2a7c6889d61180d3]::intravisit::Visitor>::visit_nested_item
  18:        0x10d4717ec - rustc_hir[2a7c6889d61180d3]::intravisit::walk_block::<rustc_lint[66f12495879f0b66]::late::LateContextAndPass<rustc_lint[66f12495879f0b66]::BuiltinCombinedModuleLateLintPass>>
  19:        0x10d53fed0 - <rustc_lint[66f12495879f0b66]::late::LateContextAndPass<rustc_lint[66f12495879f0b66]::BuiltinCombinedModuleLateLintPass>>::with_lint_attrs::<<rustc_lint[66f12495879f0b66]::late::LateContextAndPass<rustc_lint[66f12495879f0b66]::BuiltinCombinedModuleLateLintPass> as rustc_hir[2a7c6889d61180d3]::intravisit::Visitor>::visit_expr::{closure#0}::{closure#0}>
  20:        0x10d47b820 - rustc_hir[2a7c6889d61180d3]::intravisit::walk_item::<rustc_lint[66f12495879f0b66]::late::LateContextAndPass<rustc_lint[66f12495879f0b66]::BuiltinCombinedModuleLateLintPass>>
  21:        0x10d540708 - <rustc_lint[66f12495879f0b66]::late::LateContextAndPass<rustc_lint[66f12495879f0b66]::BuiltinCombinedModuleLateLintPass>>::with_lint_attrs::<<rustc_lint[66f12495879f0b66]::late::LateContextAndPass<rustc_lint[66f12495879f0b66]::BuiltinCombinedModuleLateLintPass> as rustc_hir[2a7c6889d61180d3]::intravisit::Visitor>::visit_item::{closure#0}>
  22:        0x10d56e82c - rustc_lint[66f12495879f0b66]::lint_mod
  23:        0x10e128100 - rustc_query_impl[165e2a4b783ea290]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[165e2a4b783ea290]::query_impl::lint_mod::dynamic_query::{closure#2}::{closure#0}, rustc_middle[822ae551961f0a2a]::query::erase::Erased<[u8; 0usize]>>
  24:        0x10df2a644 - rustc_query_system[6657c299204f8129]::query::plumbing::try_execute_query::<rustc_query_impl[165e2a4b783ea290]::DynamicConfig<rustc_query_system[6657c299204f8129]::query::caches::DefaultCache<rustc_span[7205846256d90284]::def_id::LocalModDefId, rustc_middle[822ae551961f0a2a]::query::erase::Erased<[u8; 0usize]>>, false, false, false>, rustc_query_impl[165e2a4b783ea290]::plumbing::QueryCtxt, true>
  25:        0x10e14e714 - rustc_query_impl[165e2a4b783ea290]::query_impl::lint_mod::get_query_incr::__rust_end_short_backtrace
  26:        0x10d542a14 - rustc_lint[66f12495879f0b66]::late::check_crate::{closure#1}
  27:        0x10d541948 - rustc_lint[66f12495879f0b66]::late::check_crate
  28:        0x10d44665c - rustc_interface[69f8d7669d9c0d37]::passes::analysis
  29:        0x10e128004 - rustc_query_impl[165e2a4b783ea290]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[165e2a4b783ea290]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[822ae551961f0a2a]::query::erase::Erased<[u8; 1usize]>>
  30:        0x10def1974 - rustc_query_system[6657c299204f8129]::query::plumbing::try_execute_query::<rustc_query_impl[165e2a4b783ea290]::DynamicConfig<rustc_query_system[6657c299204f8129]::query::caches::SingleCache<rustc_middle[822ae551961f0a2a]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[165e2a4b783ea290]::plumbing::QueryCtxt, true>
  31:        0x10e1332e8 - rustc_query_impl[165e2a4b783ea290]::query_impl::analysis::get_query_incr::__rust_end_short_backtrace
  32:        0x10cb382a4 - <rustc_interface[69f8d7669d9c0d37]::queries::QueryResult<&rustc_middle[822ae551961f0a2a]::ty::context::GlobalCtxt>>::enter::<core[70fe56331ca1154e]::result::Result<core[70fe56331ca1154e]::option::Option<rustc_interface[69f8d7669d9c0d37]::queries::Linker>, rustc_span[7205846256d90284]::ErrorGuaranteed>, rustc_driver_impl[46652df33ae3cf4a]::run_compiler::{closure#0}::{closure#1}::{closure#4}>
  33:        0x10cb85668 - rustc_interface[69f8d7669d9c0d37]::interface::run_compiler::<core[70fe56331ca1154e]::result::Result<(), rustc_span[7205846256d90284]::ErrorGuaranteed>, rustc_driver_impl[46652df33ae3cf4a]::run_compiler::{closure#0}>::{closure#1}
  34:        0x10cb7b0cc - std[bfb5b6abee616caa]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[69f8d7669d9c0d37]::util::run_in_thread_with_globals<rustc_interface[69f8d7669d9c0d37]::util::run_in_thread_pool_with_globals<rustc_interface[69f8d7669d9c0d37]::interface::run_compiler<core[70fe56331ca1154e]::result::Result<(), rustc_span[7205846256d90284]::ErrorGuaranteed>, rustc_driver_impl[46652df33ae3cf4a]::run_compiler::{closure#0}>::{closure#1}, core[70fe56331ca1154e]::result::Result<(), rustc_span[7205846256d90284]::ErrorGuaranteed>>::{closure#0}, core[70fe56331ca1154e]::result::Result<(), rustc_span[7205846256d90284]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[70fe56331ca1154e]::result::Result<(), rustc_span[7205846256d90284]::ErrorGuaranteed>>
  35:        0x10cb8aa2c - <<std[bfb5b6abee616caa]::thread::Builder>::spawn_unchecked_<rustc_interface[69f8d7669d9c0d37]::util::run_in_thread_with_globals<rustc_interface[69f8d7669d9c0d37]::util::run_in_thread_pool_with_globals<rustc_interface[69f8d7669d9c0d37]::interface::run_compiler<core[70fe56331ca1154e]::result::Result<(), rustc_span[7205846256d90284]::ErrorGuaranteed>, rustc_driver_impl[46652df33ae3cf4a]::run_compiler::{closure#0}>::{closure#1}, core[70fe56331ca1154e]::result::Result<(), rustc_span[7205846256d90284]::ErrorGuaranteed>>::{closure#0}, core[70fe56331ca1154e]::result::Result<(), rustc_span[7205846256d90284]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[70fe56331ca1154e]::result::Result<(), rustc_span[7205846256d90284]::ErrorGuaranteed>>::{closure#1} as core[70fe56331ca1154e]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  36:        0x10e963c98 - std::sys::pal::unix::thread::Thread::new::thread_start::hf3b7c43b22d3d6e6
  37:        0x195cd826c - __pthread_deallocate