`rustc +nightly --version --verbose`: rustc 1.86.0-nightly (99db2737c 2025-01-16) binary: rustc commit-hash: 99db2737c91d1e4b36b2ffc17dcda5878bcae625 commit-date: 2025-01-16 host: x86_64-unknown-linux-gnu release: 1.86.0-nightly LLVM version: 19.1.7

error: internal compiler error: Missing value for constant, but no error reported? --> tests/ui/layout/uneval-const-rigid.rs:11:5 | 11 | [(); <() as Project>::ASSOC]; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | note: delayed at compiler/rustc_trait_selection/src/traits/const_evaluatable.rs:132:44 - disabled backtrace --> tests/ui/layout/uneval-const-rigid.rs:11:5 | 11 | [(); <() as Project>::ASSOC]; |

error: internal compiler error: Missing value for constant, but no error reported? --> tmp.rs:11:5 | 11 | [(); <() as Project>::ASSOC]; | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | note: delayed at compiler/rustc_trait_selection/src/traits/const_evaluatable.rs:132:44 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_trait_selection::traits::const_evaluatable::is_const_evaluatable.cold 5: <rustc_trait_selection::traits::fulfill::FulfillProcessor as rustc_data_structures::obligation_forest::ObligationProcessor>::process_obligation 6: <rustc_data_structures::obligation_forest::ObligationForest<rustc_trait_selection::traits::fulfill::PendingPredicateObligation>>::process_obligations::<rustc_trait_selection::traits::fulfill::FulfillProcessor> 7: rustc_hir_typeck::typeck_with_fallback::{closure#0} 8: rustc_query_impl::plumbing::__rust_begin_short_backtrace::<rustc_query_impl::query_impl::typeck::dynamic_query::{closure#2}::{closure#0}, rustc_middle::query::erase::Erased<[u8; 8]>> 9: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::DynamicConfig<rustc_data_structures::vec_cache::VecCache<rustc_span::def_id::LocalDefId, rustc_middle::query::erase::Erased<[u8; 8]>, rustc_query_system::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, false> 10: rustc_query_impl::query_impl::typeck::get_query_non_incr::__rust_end_short_backtrace 11: <rustc_middle::hir::map::Map>::par_body_owners::<rustc_hir_analysis::check_crate::{closure#4}>::{closure#0} 12: rustc_hir_analysis::check_crate 13: rustc_interface::passes::run_required_analyses 14: rustc_interface::passes::analysis 15: rustc_query_impl::plumbing::__rust_begin_short_backtrace::<rustc_query_impl::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle::query::erase::Erased<[u8; 0]>> 16: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::DynamicConfig<rustc_query_system::query::caches::SingleCache<rustc_middle::query::erase::Erased<[u8; 0]>>, false, false, false>, rustc_query_impl::plumbing::QueryCtxt, false> 17: rustc_query_impl::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace 18: rustc_interface::passes::create_and_enter_global_ctxt::<core::option::Option<rustc_interface::queries::Linker>, rustc_driver_impl::run_compiler::{closure#0}::{closure#2}>::{closure#2}::{closure#0} 19: rustc_interface::interface::run_compiler::<(), rustc_driver_impl::run_compiler::{closure#0}>::{closure#1} 20: 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#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()> 21: <<std::thread::Builder>::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#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} 22: std::sys::pal::unix::thread::Thread::new::thread_start 23: <unknown> 24: <unknown>