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ICE: could not fully normalize #73249
Description
Activity
Did you mean to point at some specific part of that rollup? It's almost certainly caused by the rollup (or a not-yet-benchmarked commit I guess).
This seems to be caused by #72890, cc @davidtwco
Backtrace:
error: internal compiler error: src/librustc_traits/normalize_erasing_regions.rs:37: could not fully normalize `<A as sealed::SimdArray>::Tuple` thread 'rustc' panicked at 'Box<Any>', src/librustc_errors/lib.rs:907:9 stack backtrace: 0: backtrace::backtrace::libunwind::trace at /cargo/registry/src/github.life-white.uk-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86 1: backtrace::backtrace::trace_unsynchronized at /cargo/registry/src/github.life-white.uk-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66 2: std::sys_common::backtrace::_print_fmt at src/libstd/sys_common/backtrace.rs:78 3: <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt at src/libstd/sys_common/backtrace.rs:59 4: core::fmt::write at src/libcore/fmt/mod.rs:1076 5: std::io::Write::write_fmt at src/libstd/io/mod.rs:1537 6: std::sys_common::backtrace::_print at src/libstd/sys_common/backtrace.rs:62 7: std::sys_common::backtrace::print at src/libstd/sys_common/backtrace.rs:49 8: std::panicking::default_hook::{{closure}} at src/libstd/panicking.rs:198 9: std::panicking::default_hook at src/libstd/panicking.rs:218 10: rustc_driver::report_ice 11: std::panicking::rust_panic_with_hook at src/libstd/panicking.rs:481 12: std::panicking::begin_panic 13: rustc_errors::HandlerInner::bug 14: rustc_errors::Handler::bug 15: rustc_middle::util::bug::opt_span_bug_fmt::{{closure}} 16: rustc_middle::ty::context::tls::with_opt::{{closure}} 17: rustc_middle::ty::context::tls::with_opt 18: rustc_middle::util::bug::opt_span_bug_fmt 19: rustc_middle::util::bug::bug_fmt 20: rustc_middle::ty::context::GlobalCtxt::enter_local 21: rustc_traits::normalize_erasing_regions::normalize_generic_arg_after_erasing_regions 22: rustc_middle::ty::query::<impl rustc_query_system::query::config::QueryAccessors<rustc_middle::ty::context::TyCtxt> for rustc_middle::ty::query::queries::normalize_generic_arg_after_erasing_regions>::compute 23: rustc_query_system::dep_graph::graph::DepGraph<K>::with_task_impl 24: rustc_data_structures::stack::ensure_sufficient_stack 25: rustc_query_system::query::plumbing::get_query_impl 26: rustc_middle::ty::normalize_erasing_regions::<impl rustc_middle::ty::context::TyCtxt>::normalize_erasing_regions 27: rustc_middle::ty::AdtDef::transparent_newtype_field 28: rustc_lint::types::ImproperCTypesVisitor::check_type_for_ffi 29: rustc_lint::types::ImproperCTypesVisitor::check_type_for_ffi_and_report_errors 30: <rustc_lint::types::ImproperCTypes as rustc_lint::passes::LateLintPass>::check_foreign_item 31: rustc_hir::intravisit::walk_item 32: rustc_hir::intravisit::Visitor::visit_nested_item 33: rustc_hir::intravisit::walk_mod 34: rustc_lint::late::late_lint_mod 35: rustc_middle::ty::query::<impl rustc_query_system::query::config::QueryAccessors<rustc_middle::ty::context::TyCtxt> for rustc_middle::ty::query::queries::lint_mod>::compute 36: rustc_query_system::dep_graph::graph::DepGraph<K>::with_task_impl 37: rustc_data_structures::stack::ensure_sufficient_stack 38: rustc_query_system::query::plumbing::get_query_impl 39: rustc_query_system::query::plumbing::ensure_query_impl 40: rustc_session::utils::<impl rustc_session::session::Session>::time 41: std::panicking::try 42: <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once 43: rustc_session::utils::<impl rustc_session::session::Session>::time 44: rustc_interface::passes::analysis 45: rustc_middle::ty::query::<impl rustc_query_system::query::config::QueryAccessors<rustc_middle::ty::context::TyCtxt> for rustc_middle::ty::query::queries::analysis>::compute 46: rustc_query_system::dep_graph::graph::DepGraph<K>::with_task_impl 47: rustc_query_system::query::plumbing::get_query_impl 48: rustc_middle::ty::context::tls::enter_global 49: rustc_interface::queries::<impl rustc_interface::interface::Compiler>::enter 50: rustc_span::with_source_map 51: rustc_interface::interface::run_compiler_in_existing_thread_pool 52: scoped_tls::ScopedKey<T>::setMinimal repro:
pub trait Foo { type Assoc; } impl Foo for () { type Assoc = u32; } extern "C" { pub fn lint_me(x: Bar<()>); } #[repr(transparent)] pub struct Bar<T: Foo> { value: <T as Foo>::Assoc, }
Reacted by David Wood, Victor Collod, Damian Lesiuk and Alec MocattaAssigning
P-criticalas discussed as part of the Prioritization Working Group process and removingI-prioritize.
ICE in packed-simd on rustc-perf, caused by ec42485. I suspect #72897 but am not sure. cc @lcnr
Would be good to minimize so we can add a test case.