rust-lang / rust-lang/rust

ICE: `Option::unwrap()` on a `None` value

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A-incr-comp C-bug I-ICE S-needs-repro T-compiler
Dominant language
Rust
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Description

Code

Nothing simple I could extract from the closed source project.

Problem disappeared after cargo clean.

If this report is not helpful, feel free to close.

Meta

rustc --version --verbose:

rustc 1.90.0 (1159e78c4 2025-09-14)
binary: rustc
commit-hash: 1159e78c4747b02ef996e55082b704c09b970588
commit-date: 2025-09-14
host: aarch64-apple-darwin
release: 1.90.0
LLVM version: 20.1.8
Error output
thread 'rustc' panicked at compiler/rustc_metadata/src/rmeta/def_path_hash_map.rs:18:54:
called `Option::unwrap()` on a `None` value
stack backtrace:
   0:        0x1104bf6dc - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hf35f9734f9a29483
   1:        0x10d98d3c8 - core::fmt::write::h60ec6633daab7b35
   2:        0x1104b3cec - std::io::Write::write_fmt::hc29709fdab2e34e2
   3:        0x1104bf59c - std::sys::backtrace::BacktraceLock::print::hca95bffd78053951
   4:        0x1104c4150 - std::panicking::default_hook::{{closure}}::h357ed4fbef22679d
   5:        0x1104c3e28 - std::panicking::default_hook::h0a4e133b151d5758
   6:        0x10e5813b4 - rustc_driver_impl[fe1bcf639e75a35c]::install_ice_hook::{closure#1}
   7:        0x1104c4adc - std::panicking::rust_panic_with_hook::h557a23724a5de839
   8:        0x1104c469c - std::panicking::begin_panic_handler::{{closure}}::h269cace6208fef05
   9:        0x1104bfb6c - std::sys::backtrace::__rust_end_short_backtrace::h5be0da278f3aaec7
  10:        0x1104c43c8 - __rustc[de2ca18b4c54d5b8]::rust_begin_unwind
  11:        0x113100054 - core::panicking::panic_fmt::h477ff48eff31ffa4
  12:        0x1131000c4 - core::panicking::panic::h3c0d0c5e47386e71
  13:        0x1130fffec - core::option::unwrap_failed::h5bf6e88bea1a867a
  14:        0x10f09710c - <rustc_metadata[d0ea9d5ac5081a7]::rmeta::decoder::cstore_impl::provide_cstore_hooks::{closure#0} as core[1e83a543c1a720ad]::ops::function::FnOnce<(rustc_middle[208d74889ccb36c1]::ty::context::TyCtxt, rustc_span[a5e3a2783cc054a9]::def_id::DefPathHash, rustc_span[a5e3a2783cc054a9]::def_id::StableCrateId)>>::call_once
  15:        0x10f244a7c - <rustc_middle[208d74889ccb36c1]::ty::context::TyCtxt>::def_path_hash_to_def_id
  16:        0x10fc2bd68 - rustc_query_impl[77ea9433992fe932]::plumbing::force_from_dep_node::<rustc_query_impl[77ea9433992fe932]::DynamicConfig<rustc_query_system[333456b6d0746410]::query::caches::DefIdCache<rustc_middle[208d74889ccb36c1]::query::erase::Erased<[u8; 8usize]>>, false, false, false>>
  17:        0x10fbc026c - <rustc_query_impl[77ea9433992fe932]::plumbing::query_callback<rustc_query_impl[77ea9433992fe932]::query_impl::type_of::QueryType>::{closure#0} as core[1e83a543c1a720ad]::ops::function::FnOnce<(rustc_middle[208d74889ccb36c1]::ty::context::TyCtxt, rustc_query_system[333456b6d0746410]::dep_graph::dep_node::DepNode, rustc_query_system[333456b6d0746410]::dep_graph::serialized::SerializedDepNodeIndex)>>::call_once
  18:        0x10f9bcd94 - <rustc_query_system[333456b6d0746410]::dep_graph::graph::DepGraphData<rustc_middle[208d74889ccb36c1]::dep_graph::DepsType>>::try_mark_previous_green::<rustc_query_impl[77ea9433992fe932]::plumbing::QueryCtxt>
  19:        0x10f9bcd40 - <rustc_query_system[333456b6d0746410]::dep_graph::graph::DepGraphData<rustc_middle[208d74889ccb36c1]::dep_graph::DepsType>>::try_mark_previous_green::<rustc_query_impl[77ea9433992fe932]::plumbing::QueryCtxt>
  20:        0x10f9bcd40 - <rustc_query_system[333456b6d0746410]::dep_graph::graph::DepGraphData<rustc_middle[208d74889ccb36c1]::dep_graph::DepsType>>::try_mark_previous_green::<rustc_query_impl[77ea9433992fe932]::plumbing::QueryCtxt>
  21:        0x10f9bcd40 - <rustc_query_system[333456b6d0746410]::dep_graph::graph::DepGraphData<rustc_middle[208d74889ccb36c1]::dep_graph::DepsType>>::try_mark_previous_green::<rustc_query_impl[77ea9433992fe932]::plumbing::QueryCtxt>
  22:        0x10f9bcb70 - <rustc_query_system[333456b6d0746410]::dep_graph::graph::DepGraphData<rustc_middle[208d74889ccb36c1]::dep_graph::DepsType>>::try_mark_green::<rustc_query_impl[77ea9433992fe932]::plumbing::QueryCtxt>
  23:        0x10fa2568c - rustc_query_system[333456b6d0746410]::query::plumbing::try_execute_query::<rustc_query_impl[77ea9433992fe932]::DynamicConfig<rustc_query_system[333456b6d0746410]::query::caches::DefaultCache<rustc_type_ir[ed34ddf3688f5eb]::canonical::CanonicalQueryInput<rustc_middle[208d74889ccb36c1]::ty::context::TyCtxt, rustc_middle[208d74889ccb36c1]::ty::ParamEnvAnd<rustc_middle[208d74889ccb36c1]::ty::predicate::Predicate>>, rustc_middle[208d74889ccb36c1]::query::erase::Erased<[u8; 2usize]>>, false, false, false>, rustc_query_impl[77ea9433992fe932]::plumbing::QueryCtxt, true>
  24:        0x10fca9504 - rustc_query_impl[77ea9433992fe932]::query_impl::evaluate_obligation::get_query_incr::__rust_end_short_backtrace
  25:        0x1102cf4ac - <rustc_infer[3cd6d89bbca3f904]::infer::InferCtxt as rustc_trait_selection[accd96f9e88fc2f]::traits::query::evaluate_obligation::InferCtxtExt>::evaluate_obligation
  26:        0x1102cfa54 - <rustc_infer[3cd6d89bbca3f904]::infer::InferCtxt as rustc_trait_selection[accd96f9e88fc2f]::traits::query::evaluate_obligation::InferCtxtExt>::evaluate_obligation_no_overflow
  27:        0x1102bf6b8 - <rustc_trait_selection[accd96f9e88fc2f]::traits::fulfill::FulfillProcessor>::process_trait_obligation
  28:        0x1102bf1b8 - <rustc_trait_selection[accd96f9e88fc2f]::traits::fulfill::FulfillProcessor as rustc_data_structures[8d3fb60ec084691e]::obligation_forest::ObligationProcessor>::process_obligation
  29:        0x1100561d4 - <rustc_data_structures[8d3fb60ec084691e]::obligation_forest::ObligationForest<rustc_trait_selection[accd96f9e88fc2f]::traits::fulfill::PendingPredicateObligation>>::process_obligations::<rustc_trait_selection[accd96f9e88fc2f]::traits::fulfill::FulfillProcessor>
  30:        0x11026b158 - <rustc_trait_selection[accd96f9e88fc2f]::traits::fulfill::FulfillmentContext<rustc_infer[3cd6d89bbca3f904]::traits::engine::ScrubbedTraitError> as rustc_infer[3cd6d89bbca3f904]::traits::engine::TraitEngine<rustc_infer[3cd6d89bbca3f904]::traits::engine::ScrubbedTraitError>>::select_where_possible
  31:        0x1101a70c4 - <rustc_trait_selection[accd96f9e88fc2f]::traits::fulfill::FulfillmentContext<rustc_infer[3cd6d89bbca3f904]::traits::engine::ScrubbedTraitError> as rustc_infer[3cd6d89bbca3f904]::traits::engine::TraitEngine<rustc_infer[3cd6d89bbca3f904]::traits::engine::ScrubbedTraitError>>::select_all_or_error
  32:        0x11037d724 - rustc_traits[e9def9f1d791d6e3]::codegen::codegen_select_candidate
  33:        0x10fc31470 - rustc_query_impl[77ea9433992fe932]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[77ea9433992fe932]::query_impl::codegen_select_candidate::dynamic_query::{closure#2}::{closure#0}, rustc_middle[208d74889ccb36c1]::query::erase::Erased<[u8; 16usize]>>
  34:        0x10fbf4db8 - <rustc_query_impl[77ea9433992fe932]::query_impl::codegen_select_candidate::dynamic_query::{closure#2} as core[1e83a543c1a720ad]::ops::function::FnOnce<(rustc_middle[208d74889ccb36c1]::ty::context::TyCtxt, rustc_middle[208d74889ccb36c1]::ty::PseudoCanonicalInput<rustc_type_ir[ed34ddf3688f5eb]::predicate::TraitRef<rustc_middle[208d74889ccb36c1]::ty::context::TyCtxt>>)>>::call_once
  35:        0x10fa30fac - rustc_query_system[333456b6d0746410]::query::plumbing::try_execute_query::<rustc_query_impl[77ea9433992fe932]::DynamicConfig<rustc_query_system[333456b6d0746410]::query::caches::DefaultCache<rustc_middle[208d74889ccb36c1]::ty::PseudoCanonicalInput<rustc_type_ir[ed34ddf3688f5eb]::predicate::TraitRef<rustc_middle[208d74889ccb36c1]::ty::context::TyCtxt>>, rustc_middle[208d74889ccb36c1]::query::erase::Erased<[u8; 16usize]>>, false, false, false>, rustc_query_impl[77ea9433992fe932]::plumbing::QueryCtxt, true>
  36:        0x10fc7abc0 - rustc_query_impl[77ea9433992fe932]::query_impl::codegen_select_candidate::get_query_incr::__rust_end_short_backtrace
  37:        0x10f6184bc - rustc_monomorphize[f70938373e223462]::collector::find_tails_for_unsizing
  38:        0x10f6165c4 - <rustc_monomorphize[f70938373e223462]::collector::MirUsedCollector as rustc_middle[208d74889ccb36c1]::mir::visit::Visitor>::visit_rvalue
  39:        0x10f61ac60 - rustc_monomorphize[f70938373e223462]::collector::items_of_instance
  40:        0x10fc2ee4c - rustc_query_impl[77ea9433992fe932]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[77ea9433992fe932]::query_impl::items_of_instance::dynamic_query::{closure#2}::{closure#0}, rustc_middle[208d74889ccb36c1]::query::erase::Erased<[u8; 32usize]>>
  41:        0x10fbdcd40 - <rustc_query_impl[77ea9433992fe932]::query_impl::items_of_instance::dynamic_query::{closure#2} as core[1e83a543c1a720ad]::ops::function::FnOnce<(rustc_middle[208d74889ccb36c1]::ty::context::TyCtxt, (rustc_middle[208d74889ccb36c1]::ty::instance::Instance, rustc_middle[208d74889ccb36c1]::mir::mono::CollectionMode))>>::call_once
  42:        0x10fa7a330 - rustc_query_system[333456b6d0746410]::query::plumbing::try_execute_query::<rustc_query_impl[77ea9433992fe932]::DynamicConfig<rustc_query_system[333456b6d0746410]::query::caches::DefaultCache<(rustc_middle[208d74889ccb36c1]::ty::instance::Instance, rustc_middle[208d74889ccb36c1]::mir::mono::CollectionMode), rustc_middle[208d74889ccb36c1]::query::erase::Erased<[u8; 32usize]>>, false, false, false>, rustc_query_impl[77ea9433992fe932]::plumbing::QueryCtxt, true>
  43:        0x10fcc4b94 - rustc_query_impl[77ea9433992fe932]::query_impl::items_of_instance::get_query_incr::__rust_end_short_backtrace
  44:        0x10f62eea0 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec::{closure#0}
  45:        0x10f62cff4 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  46:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  47:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  48:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  49:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  50:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  51:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  52:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  53:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  54:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  55:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  56:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  57:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  58:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  59:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  60:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  61:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  62:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  63:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  64:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  65:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  66:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  67:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  68:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  69:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  70:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  71:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  72:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  73:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  74:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  75:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  76:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  77:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  78:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  79:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  80:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  81:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  82:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  83:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  84:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  85:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  86:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  87:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  88:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  89:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  90:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  91:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  92:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  93:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  94:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  95:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  96:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  97:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  98:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
  99:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
 100:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
 101:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
 102:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
 103:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
 104:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
 105:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
 106:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
 107:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
 108:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
 109:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
 110:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
 111:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
 112:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
 113:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
 114:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
 115:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
 116:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
 117:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
 118:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
 119:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
 120:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
 121:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
 122:        0x10f62e298 - rustc_monomorphize[f70938373e223462]::collector::collect_items_rec
 123:        0x10f6336b4 - rustc_monomorphize[f70938373e223462]::collector::collect_crate_mono_items::{closure#1}::{closure#0}
 124:        0x10f6280a0 - rustc_monomorphize[f70938373e223462]::partitioning::collect_and_partition_mono_items
 125:        0x10fc32168 - rustc_query_impl[77ea9433992fe932]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[77ea9433992fe932]::query_impl::collect_and_partition_mono_items::dynamic_query::{closure#2}::{closure#0}, rustc_middle[208d74889ccb36c1]::query::erase::Erased<[u8; 40usize]>>
 126:        0x10fa123c8 - rustc_query_system[333456b6d0746410]::query::plumbing::try_execute_query::<rustc_query_impl[77ea9433992fe932]::DynamicConfig<rustc_query_system[333456b6d0746410]::query::caches::SingleCache<rustc_middle[208d74889ccb36c1]::query::erase::Erased<[u8; 40usize]>>, false, false, false>, rustc_query_impl[77ea9433992fe932]::plumbing::QueryCtxt, true>
 127:        0x10fbbeca4 - <rustc_query_impl[77ea9433992fe932]::plumbing::query_callback<rustc_query_impl[77ea9433992fe932]::query_impl::collect_and_partition_mono_items::QueryType>::{closure#0} as core[1e83a543c1a720ad]::ops::function::FnOnce<(rustc_middle[208d74889ccb36c1]::ty::context::TyCtxt, rustc_query_system[333456b6d0746410]::dep_graph::dep_node::DepNode, rustc_query_system[333456b6d0746410]::dep_graph::serialized::SerializedDepNodeIndex)>>::call_once
 128:        0x10f9bcd94 - <rustc_query_system[333456b6d0746410]::dep_graph::graph::DepGraphData<rustc_middle[208d74889ccb36c1]::dep_graph::DepsType>>::try_mark_previous_green::<rustc_query_impl[77ea9433992fe932]::plumbing::QueryCtxt>
 129:        0x10f9bcb70 - <rustc_query_system[333456b6d0746410]::dep_graph::graph::DepGraphData<rustc_middle[208d74889ccb36c1]::dep_graph::DepsType>>::try_mark_green::<rustc_query_impl[77ea9433992fe932]::plumbing::QueryCtxt>
 130:        0x10fa8a498 - rustc_query_system[333456b6d0746410]::query::plumbing::try_execute_query::<rustc_query_impl[77ea9433992fe932]::DynamicConfig<rustc_data_structures[8d3fb60ec084691e]::vec_cache::VecCache<rustc_span[a5e3a2783cc054a9]::def_id::CrateNum, rustc_middle[208d74889ccb36c1]::query::erase::Erased<[u8; 16usize]>, rustc_query_system[333456b6d0746410]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[77ea9433992fe932]::plumbing::QueryCtxt, true>
 131:        0x10fca19f4 - rustc_query_impl[77ea9433992fe932]::query_impl::exported_generic_symbols::get_query_incr::__rust_end_short_backtrace
 132:        0x10f0bdd74 - <rustc_metadata[d0ea9d5ac5081a7]::rmeta::encoder::EncodeContext>::encode_crate_root
 133:        0x1131bc5d4 - rustc_metadata[d0ea9d5ac5081a7]::rmeta::encoder::encode_metadata::{closure#3}::{closure#0}
 134:        0x10f09678c - <rustc_metadata[d0ea9d5ac5081a7]::rmeta::encoder::encode_metadata::{closure#3} as core[1e83a543c1a720ad]::ops::function::FnOnce<(rustc_middle[208d74889ccb36c1]::ty::context::TyCtxt, &std[37ceaa58691cab6f]::path::Path)>>::call_once
 135:        0x10f11e4d0 - rustc_metadata[d0ea9d5ac5081a7]::rmeta::encoder::encode_metadata
 136:        0x10f0e4bb4 - rustc_metadata[d0ea9d5ac5081a7]::fs::encode_and_write_metadata
 137:        0x10ee735b0 - <rustc_interface[619ac9f988dd2698]::queries::Linker>::codegen_and_build_linker
 138:        0x10e524f28 - rustc_interface[619ac9f988dd2698]::passes::create_and_enter_global_ctxt::<core[1e83a543c1a720ad]::option::Option<rustc_interface[619ac9f988dd2698]::queries::Linker>, rustc_driver_impl[fe1bcf639e75a35c]::run_compiler::{closure#0}::{closure#2}>
 139:        0x10e531f8c - rustc_interface[619ac9f988dd2698]::interface::run_compiler::<(), rustc_driver_impl[fe1bcf639e75a35c]::run_compiler::{closure#0}>::{closure#1}
 140:        0x10e526334 - std[37ceaa58691cab6f]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[619ac9f988dd2698]::util::run_in_thread_with_globals<rustc_interface[619ac9f988dd2698]::util::run_in_thread_pool_with_globals<rustc_interface[619ac9f988dd2698]::interface::run_compiler<(), rustc_driver_impl[fe1bcf639e75a35c]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>
 141:        0x10e5342b8 - <<std[37ceaa58691cab6f]::thread::Builder>::spawn_unchecked_<rustc_interface[619ac9f988dd2698]::util::run_in_thread_with_globals<rustc_interface[619ac9f988dd2698]::util::run_in_thread_pool_with_globals<rustc_interface[619ac9f988dd2698]::interface::run_compiler<(), rustc_driver_impl[fe1bcf639e75a35c]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[1e83a543c1a720ad]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
 142:        0x1104c7e64 - std::sys::pal::unix::thread::Thread::new::thread_start::h87df50f049a92661
 143:        0x18d3bbc0c - __pthread_cond_wait

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: rustc 1.90.0 (1159e78c4 2025-09-14) running on aarch64-apple-darwin

note: compiler flags: --crate-type lib -C embed-bitcode=no -C debuginfo=2 -C split-debuginfo=unpacked -C incremental=[REDACTED] -C link-arg=-undefined -C link-arg=dynamic_lookup -C force-unwind-tables=yes -C link-args=-ObjC

note: some of the compiler flags provided by cargo are hidden

query stack during panic:
#0 [evaluate_obligation] evaluating trait selection obligation `{coroutine witness@pingora_proxy::HttpProxy<xxx::WwwProxyHttp>::handle_error::{closure#0}}: core::marker::Send`
#1 [codegen_select_candidate] computing candidate for `<core::pin::Pin<alloc::boxed::Box<{async block@<pingora_proxy::HttpProxy<xxx::WwwProxyHttp> as pingora_core::apps::HttpServerApp>::process_new_http<'_, '_, '_>::{closure#0}}>> as core::ops::unsize::CoerceUnsized<core::pin::Pin<alloc::boxed::Box<dyn core::future::future::Future<Output = core::option::Option<pingora_core::apps::ReusedHttpStream>> + core::marker::Send>>>>`
... and 3 other queries... use `env RUST_BACKTRACE=1` to see the full query stack
there was a panic while trying to force a dep node
try_mark_green dep node stack:
#0 TraitSelect(1ef8f792625da818-d2993e590ecaa)
#1 TraitSelect(19060ce304f07070-e91191a7863b576e)
#2 TraitSelect(c8d7c5a3bd79b69c-b8e70ad5a6f03147)
#3 evaluate_obligation(4b472bd21db258ba-e536200355c35617)

Contributor guide

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Research direction

Start by investigating compiler/rustc_metadata/src/rmeta/def_path_hash_map.rs and the def_path_hash_to_def_id entry point from the reported rustc 1.90.0 stack trace. Try to reproduce the panic despite the unavailable source example and the report that cargo clean resolved it; done means identifying a reproducible cause and preventing this ICE.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
compilers
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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