Spurious cache failure: 'no entry found for key', compiler/rustc_metadata/src/rmeta/decoder.rs:1660:13

[madsmtm]

Code

Unknown, sorry 😕.

I can't reproduce the issue, the project I was building was objc2, and it failed in CI.

Just posting here in case someone can use the backtraces for anything, feel free to close if this is infeasible.

Meta

nightly-2021-12-22 on x86_64-apple-darwin.

Error output

Backtrace #1

CI run.

thread 'rustc' panicked at 'no entry found for key', compiler/rustc_metadata/src/rmeta/decoder.rs:1660:13
stack backtrace:
   0: _rust_begin_unwind
   1: core::panicking::panic_fmt
   2: core::panicking::panic_display
   3: core::option::expect_failed
   4: <rustc_metadata::creader::CStore as rustc_session::cstore::CrateStore>::expn_hash_to_expn_id
   5: <rustc_span::hygiene::ExpnId as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
   6: <rustc_span::hygiene::SyntaxContextData as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
   7: <rustc_query_impl::on_disk_cache::CacheDecoder as rustc_middle::ty::codec::TyDecoder>::with_position::<<rustc_span::hygiene::SyntaxContext as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode::{closure#0}::{closure#0}, core::result::Result<rustc_span::hygiene::SyntaxContextData, alloc::string::String>>
   8: <rustc_span::hygiene::SyntaxContext as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
   9: <rustc_span::span_encoding::Span as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
  10: <rustc_middle::ty::FieldDef as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
  11: <rustc_query_impl::on_disk_cache::CacheDecoder as rustc_serialize::serialize::Decoder>::read_seq::<alloc::vec::Vec<rustc_middle::ty::FieldDef>, <alloc::vec::Vec<rustc_middle::ty::FieldDef> as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode::{closure#0}>
  12: <rustc_middle::ty::VariantDef as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
  13: <rustc_query_impl::on_disk_cache::CacheDecoder as rustc_serialize::serialize::Decoder>::read_seq::<alloc::vec::Vec<rustc_middle::ty::VariantDef>, <alloc::vec::Vec<rustc_middle::ty::VariantDef> as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode::{closure#0}>
  14: <rustc_middle::ty::adt::AdtDef as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
  15: <rustc_middle::ty::sty::TyKind as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
  16: <&rustc_middle::ty::TyS as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
  17: <rustc_middle::ty::subst::GenericArg as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
  18: <core::result::Result<rustc_middle::ty::subst::GenericArg, alloc::string::String> as rustc_middle::ty::context::InternIteratorElement<rustc_middle::ty::subst::GenericArg, &rustc_middle::ty::list::List<rustc_middle::ty::subst::GenericArg>>>::intern_with::<core::iter::adapters::map::Map<core::ops::range::Range<usize>, <&rustc_middle::ty::list::List<rustc_middle::ty::subst::GenericArg> as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode::{closure#0}>, <rustc_middle::ty::context::TyCtxt>::mk_substs<core::iter::adapters::map::Map<core::ops::range::Range<usize>, <&rustc_middle::ty::list::List<rustc_middle::ty::subst::GenericArg> as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode::{closure#0}>>::{closure#0}>
  19: <&rustc_middle::ty::list::List<rustc_middle::ty::subst::GenericArg> as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
  20: <rustc_middle::ty::sty::TyKind as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
  21: <&rustc_middle::ty::TyS as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
  22: <rustc_query_impl::on_disk_cache::CacheDecoder as rustc_middle::ty::codec::TyDecoder>::cached_ty_for_shorthand::<<&rustc_middle::ty::TyS as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode::{closure#0}>
  23: <&rustc_middle::ty::TyS as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
  24: <rustc_query_impl::on_disk_cache::CacheDecoder as rustc_serialize::serialize::Decoder>::read_map::<std::collections::hash::map::HashMap<rustc_hir::hir_id::ItemLocalId, &rustc_middle::ty::TyS, core::hash::BuildHasherDefault<rustc_hash::FxHasher>>, <std::collections::hash::map::HashMap<rustc_hir::hir_id::ItemLocalId, &rustc_middle::ty::TyS, core::hash::BuildHasherDefault<rustc_hash::FxHasher>> as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode::{closure#0}>
  25: <rustc_middle::ty::context::TypeckResults as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode::{closure#0}
  26: <rustc_query_impl::on_disk_cache::OnDiskCache>::try_load_query_result::<&rustc_middle::ty::context::TypeckResults>
  27: rustc_query_system::query::plumbing::try_load_from_disk_and_cache_in_memory::<rustc_query_impl::plumbing::QueryCtxt, rustc_span::def_id::LocalDefId, &rustc_middle::ty::context::TypeckResults>
  28: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::plumbing::QueryCtxt, rustc_query_system::query::caches::DefaultCache<rustc_span::def_id::LocalDefId, &rustc_middle::ty::context::TypeckResults>>
  29: rustc_query_system::query::plumbing::get_query::<rustc_query_impl::queries::typeck, rustc_query_impl::plumbing::QueryCtxt>
  30: <rustc_middle::ty::context::TyCtxt>::typeck_body
  31: rustc_hir::intravisit::walk_fn::<rustc_passes::dead::MarkSymbolVisitor>
  32: rustc_hir::intravisit::walk_impl_item::<rustc_passes::dead::MarkSymbolVisitor>
  33: rustc_passes::dead::check_crate
  34: <core::panic::unwind_safe::AssertUnwindSafe<rustc_interface::passes::analysis::{closure#5}::{closure#0}::{closure#1}> as core::ops::function::FnOnce<()>>::call_once
  35: <core::panic::unwind_safe::AssertUnwindSafe<rustc_interface::passes::analysis::{closure#5}::{closure#0}> as core::ops::function::FnOnce<()>>::call_once
  36: <rustc_session::session::Session>::time::<(), rustc_interface::passes::analysis::{closure#5}>
  37: rustc_interface::passes::analysis
  38: <rustc_query_system::dep_graph::graph::DepGraph<rustc_middle::dep_graph::dep_node::DepKind>>::with_task::<rustc_middle::ty::context::TyCtxt, (), core::result::Result<(), rustc_errors::ErrorReported>>
  39: rustc_data_structures::stack::ensure_sufficient_stack::<(core::result::Result<(), rustc_errors::ErrorReported>, rustc_query_system::dep_graph::graph::DepNodeIndex), rustc_query_system::query::plumbing::execute_job<rustc_query_impl::plumbing::QueryCtxt, (), core::result::Result<(), rustc_errors::ErrorReported>>::{closure#3}>
  40: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::plumbing::QueryCtxt, rustc_query_system::query::caches::DefaultCache<(), core::result::Result<(), rustc_errors::ErrorReported>>>
  41: rustc_query_system::query::plumbing::get_query::<rustc_query_impl::queries::analysis, rustc_query_impl::plumbing::QueryCtxt>
  42: <rustc_interface::passes::QueryContext>::enter::<rustc_driver::run_compiler::{closure#1}::{closure#2}::{closure#3}, core::result::Result<(), rustc_errors::ErrorReported>>
  43: <rustc_interface::interface::Compiler>::enter::<rustc_driver::run_compiler::{closure#1}::{closure#2}, core::result::Result<core::option::Option<rustc_interface::queries::Linker>, rustc_errors::ErrorReported>>
  44: rustc_span::with_source_map::<core::result::Result<(), rustc_errors::ErrorReported>, rustc_interface::interface::create_compiler_and_run<core::result::Result<(), rustc_errors::ErrorReported>, rustc_driver::run_compiler::{closure#1}>::{closure#1}>
  45: <scoped_tls::ScopedKey<rustc_span::SessionGlobals>>::set::<rustc_interface::util::setup_callbacks_and_run_in_thread_pool_with_globals<rustc_interface::interface::run_compiler<core::result::Result<(), rustc_errors::ErrorReported>, rustc_driver::run_compiler::{closure#1}>::{closure#0}, core::result::Result<(), rustc_errors::ErrorReported>>::{closure#0}::{closure#0}, core::result::Result<(), rustc_errors::ErrorReported>>
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

error: internal compiler error: unexpected panic
Error: internal compiler error: unexpected panic
note: 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 1.59.0-nightly (e100ec5bc 2021-12-21) running on x86_64-apple-darwin

note: compiler flags: -C embed-bitcode=no -C split-debuginfo=unpacked -C debuginfo=2 -C incremental -C debuginfo=0 --crate-type bin

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

query stack during panic:
#0 [typeck] type-checking `<impl at objc2-foundation/examples/custom_class.rs:50:1: 80:2>::class`
#1 [analysis] running analysis passes on this crate
end of query stack

Backtrace #2

CI run.

thread 'rustc' panicked at 'no entry found for key', compiler/rustc_metadata/src/rmeta/decoder.rs:1660:13
stack backtrace:
   0: _rust_begin_unwind
   1: core::panicking::panic_fmt
   2: core::panicking::panic_display
   3: core::option::expect_failed
   4: <rustc_metadata::creader::CStore as rustc_session::cstore::CrateStore>::expn_hash_to_expn_id
   5: <rustc_span::hygiene::ExpnId as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
   6: <rustc_span::hygiene::SyntaxContextData as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
   7: <rustc_query_impl::on_disk_cache::CacheDecoder as rustc_middle::ty::codec::TyDecoder>::with_position::<<rustc_span::hygiene::SyntaxContext as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode::{closure#0}::{closure#0}, core::result::Result<rustc_span::hygiene::SyntaxContextData, alloc::string::String>>
   8: <rustc_span::hygiene::SyntaxContext as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
   9: <rustc_span::span_encoding::Span as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
  10: <rustc_middle::ty::FieldDef as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
  11: <rustc_query_impl::on_disk_cache::CacheDecoder as rustc_serialize::serialize::Decoder>::read_seq::<alloc::vec::Vec<rustc_middle::ty::FieldDef>, <alloc::vec::Vec<rustc_middle::ty::FieldDef> as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode::{closure#0}>
  12: <rustc_middle::ty::VariantDef as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
  13: <rustc_query_impl::on_disk_cache::CacheDecoder as rustc_serialize::serialize::Decoder>::read_seq::<alloc::vec::Vec<rustc_middle::ty::VariantDef>, <alloc::vec::Vec<rustc_middle::ty::VariantDef> as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode::{closure#0}>
  14: <rustc_middle::ty::adt::AdtDef as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
  15: <rustc_middle::ty::sty::TyKind as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
  16: <&rustc_middle::ty::TyS as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
  17: <rustc_middle::ty::subst::GenericArg as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
  18: <core::result::Result<rustc_middle::ty::subst::GenericArg, alloc::string::String> as rustc_middle::ty::context::InternIteratorElement<rustc_middle::ty::subst::GenericArg, &rustc_middle::ty::list::List<rustc_middle::ty::subst::GenericArg>>>::intern_with::<core::iter::adapters::map::Map<core::ops::range::Range<usize>, <&rustc_middle::ty::list::List<rustc_middle::ty::subst::GenericArg> as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode::{closure#0}>, <rustc_middle::ty::context::TyCtxt>::mk_substs<core::iter::adapters::map::Map<core::ops::range::Range<usize>, <&rustc_middle::ty::list::List<rustc_middle::ty::subst::GenericArg> as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode::{closure#0}>>::{closure#0}>
  19: <&rustc_middle::ty::list::List<rustc_middle::ty::subst::GenericArg> as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
  20: <rustc_middle::ty::sty::TyKind as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
  21: <&rustc_middle::ty::TyS as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
  22: <rustc_query_impl::on_disk_cache::CacheDecoder as rustc_middle::ty::codec::TyDecoder>::cached_ty_for_shorthand::<<&rustc_middle::ty::TyS as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode::{closure#0}>
  23: <&rustc_middle::ty::TyS as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
  24: <rustc_middle::ty::subst::GenericArg as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
  25: <core::result::Result<rustc_middle::ty::subst::GenericArg, alloc::string::String> as rustc_middle::ty::context::InternIteratorElement<rustc_middle::ty::subst::GenericArg, &rustc_middle::ty::list::List<rustc_middle::ty::subst::GenericArg>>>::intern_with::<core::iter::adapters::map::Map<core::ops::range::Range<usize>, <&rustc_middle::ty::list::List<rustc_middle::ty::subst::GenericArg> as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode::{closure#0}>, <rustc_middle::ty::context::TyCtxt>::mk_substs<core::iter::adapters::map::Map<core::ops::range::Range<usize>, <&rustc_middle::ty::list::List<rustc_middle::ty::subst::GenericArg> as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode::{closure#0}>>::{closure#0}>
  26: <&rustc_middle::ty::list::List<rustc_middle::ty::subst::GenericArg> as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
  27: <rustc_middle::ty::sty::TyKind as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
  28: <&rustc_middle::ty::TyS as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
  29: <rustc_query_impl::on_disk_cache::CacheDecoder as rustc_middle::ty::codec::TyDecoder>::cached_ty_for_shorthand::<<&rustc_middle::ty::TyS as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode::{closure#0}>
  30: <&rustc_middle::ty::TyS as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
  31: <rustc_query_impl::on_disk_cache::CacheDecoder as rustc_serialize::serialize::Decoder>::read_map::<std::collections::hash::map::HashMap<rustc_hir::hir_id::ItemLocalId, &rustc_middle::ty::TyS, core::hash::BuildHasherDefault<rustc_hash::FxHasher>>, <std::collections::hash::map::HashMap<rustc_hir::hir_id::ItemLocalId, &rustc_middle::ty::TyS, core::hash::BuildHasherDefault<rustc_hash::FxHasher>> as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode::{closure#0}>
  32: <rustc_middle::ty::context::TypeckResults as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode::{closure#0}
  33: <rustc_query_impl::on_disk_cache::OnDiskCache>::try_load_query_result::<&rustc_middle::ty::context::TypeckResults>
  34: rustc_query_system::query::plumbing::try_load_from_disk_and_cache_in_memory::<rustc_query_impl::plumbing::QueryCtxt, rustc_span::def_id::LocalDefId, &rustc_middle::ty::context::TypeckResults>
  35: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::plumbing::QueryCtxt, rustc_query_system::query::caches::DefaultCache<rustc_span::def_id::LocalDefId, &rustc_middle::ty::context::TypeckResults>>
  36: rustc_query_system::query::plumbing::get_query::<rustc_query_impl::queries::typeck, rustc_query_impl::plumbing::QueryCtxt>
  37: <rustc_middle::ty::context::TyCtxt>::typeck_opt_const_arg
  38: rustc_mir_build::build::mir_built
  39: <rustc_middle::dep_graph::dep_node::DepKind as rustc_query_system::dep_graph::DepKind>::with_deps::<rustc_query_system::query::plumbing::try_load_from_disk_and_cache_in_memory<rustc_query_impl::plumbing::QueryCtxt, rustc_middle::ty::WithOptConstParam<rustc_span::def_id::LocalDefId>, &rustc_data_structures::steal::Steal<rustc_middle::mir::Body>>::{closure#0}, &rustc_data_structures::steal::Steal<rustc_middle::mir::Body>>
  40: rustc_query_system::query::plumbing::try_load_from_disk_and_cache_in_memory::<rustc_query_impl::plumbing::QueryCtxt, rustc_middle::ty::WithOptConstParam<rustc_span::def_id::LocalDefId>, &rustc_data_structures::steal::Steal<rustc_middle::mir::Body>>
  41: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::plumbing::QueryCtxt, rustc_query_system::query::caches::DefaultCache<rustc_middle::ty::WithOptConstParam<rustc_span::def_id::LocalDefId>, &rustc_data_structures::steal::Steal<rustc_middle::mir::Body>>>
  42: rustc_query_system::query::plumbing::get_query::<rustc_query_impl::queries::mir_built, rustc_query_impl::plumbing::QueryCtxt>
  43: rustc_mir_transform::mir_const
  44: <rustc_middle::dep_graph::dep_node::DepKind as rustc_query_system::dep_graph::DepKind>::with_deps::<rustc_query_system::query::plumbing::try_load_from_disk_and_cache_in_memory<rustc_query_impl::plumbing::QueryCtxt, rustc_middle::ty::WithOptConstParam<rustc_span::def_id::LocalDefId>, &rustc_data_structures::steal::Steal<rustc_middle::mir::Body>>::{closure#0}, &rustc_data_structures::steal::Steal<rustc_middle::mir::Body>>
  45: rustc_query_system::query::plumbing::try_load_from_disk_and_cache_in_memory::<rustc_query_impl::plumbing::QueryCtxt, rustc_middle::ty::WithOptConstParam<rustc_span::def_id::LocalDefId>, &rustc_data_structures::steal::Steal<rustc_middle::mir::Body>>
  46: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::plumbing::QueryCtxt, rustc_query_system::query::caches::DefaultCache<rustc_middle::ty::WithOptConstParam<rustc_span::def_id::LocalDefId>, &rustc_data_structures::steal::Steal<rustc_middle::mir::Body>>>
  47: rustc_query_system::query::plumbing::get_query::<rustc_query_impl::queries::mir_const, rustc_query_impl::plumbing::QueryCtxt>
  48: rustc_mir_transform::mir_promoted
  49: <rustc_middle::dep_graph::dep_node::DepKind as rustc_query_system::dep_graph::DepKind>::with_deps::<rustc_query_system::query::plumbing::try_load_from_disk_and_cache_in_memory<rustc_query_impl::plumbing::QueryCtxt, rustc_middle::ty::WithOptConstParam<rustc_span::def_id::LocalDefId>, (&rustc_data_structures::steal::Steal<rustc_middle::mir::Body>, &rustc_data_structures::steal::Steal<rustc_index::vec::IndexVec<rustc_middle::mir::Promoted, rustc_middle::mir::Body>>)>::{closure#0}, (&rustc_data_structures::steal::Steal<rustc_middle::mir::Body>, &rustc_data_structures::steal::Steal<rustc_index::vec::IndexVec<rustc_middle::mir::Promoted, rustc_middle::mir::Body>>)>
  50: rustc_query_system::query::plumbing::try_load_from_disk_and_cache_in_memory::<rustc_query_impl::plumbing::QueryCtxt, rustc_middle::ty::WithOptConstParam<rustc_span::def_id::LocalDefId>, (&rustc_data_structures::steal::Steal<rustc_middle::mir::Body>, &rustc_data_structures::steal::Steal<rustc_index::vec::IndexVec<rustc_middle::mir::Promoted, rustc_middle::mir::Body>>)>
  51: rustc_data_structures::stack::ensure_sufficient_stack::<core::option::Option<((&rustc_data_structures::steal::Steal<rustc_middle::mir::Body>, &rustc_data_structures::steal::Steal<rustc_index::vec::IndexVec<rustc_middle::mir::Promoted, rustc_middle::mir::Body>>), rustc_query_system::dep_graph::graph::DepNodeIndex)>, rustc_query_system::query::plumbing::execute_job<rustc_query_impl::plumbing::QueryCtxt, rustc_middle::ty::WithOptConstParam<rustc_span::def_id::LocalDefId>, (&rustc_data_structures::steal::Steal<rustc_middle::mir::Body>, &rustc_data_structures::steal::Steal<rustc_index::vec::IndexVec<rustc_middle::mir::Promoted, rustc_middle::mir::Body>>)>::{closure#2}>
  52: rustc_query_system::query::plumbing::get_query::<rustc_query_impl::queries::mir_promoted, rustc_query_impl::plumbing::QueryCtxt>
  53: rustc_borrowck::mir_borrowck
  54: <rustc_borrowck::provide::{closure#0} as core::ops::function::FnOnce<(rustc_middle::ty::context::TyCtxt, rustc_span::def_id::LocalDefId)>>::call_once
  55: <rustc_query_system::dep_graph::graph::DepGraph<rustc_middle::dep_graph::dep_node::DepKind>>::with_task::<rustc_middle::ty::context::TyCtxt, rustc_span::def_id::LocalDefId, &rustc_middle::mir::query::BorrowCheckResult>
  56: rustc_data_structures::stack::ensure_sufficient_stack::<(&rustc_middle::mir::query::BorrowCheckResult, rustc_query_system::dep_graph::graph::DepNodeIndex), rustc_query_system::query::plumbing::execute_job<rustc_query_impl::plumbing::QueryCtxt, rustc_span::def_id::LocalDefId, &rustc_middle::mir::query::BorrowCheckResult>::{closure#3}>
  57: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::plumbing::QueryCtxt, rustc_query_system::query::caches::DefaultCache<rustc_span::def_id::LocalDefId, &rustc_middle::mir::query::BorrowCheckResult>>
  58: rustc_query_system::query::plumbing::get_query::<rustc_query_impl::queries::mir_borrowck, rustc_query_impl::plumbing::QueryCtxt>
  59: <rustc_session::session::Session>::time::<(), rustc_interface::passes::analysis::{closure#2}>
  60: rustc_interface::passes::analysis
  61: <rustc_query_system::dep_graph::graph::DepGraph<rustc_middle::dep_graph::dep_node::DepKind>>::with_task::<rustc_middle::ty::context::TyCtxt, (), core::result::Result<(), rustc_errors::ErrorReported>>
  62: rustc_data_structures::stack::ensure_sufficient_stack::<(core::result::Result<(), rustc_errors::ErrorReported>, rustc_query_system::dep_graph::graph::DepNodeIndex), rustc_query_system::query::plumbing::execute_job<rustc_query_impl::plumbing::QueryCtxt, (), core::result::Result<(), rustc_errors::ErrorReported>>::{closure#3}>
  63: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::plumbing::QueryCtxt, rustc_query_system::query::caches::DefaultCache<(), core::result::Result<(), rustc_errors::ErrorReported>>>
  64: rustc_query_system::query::plumbing::get_query::<rustc_query_impl::queries::analysis, rustc_query_impl::plumbing::QueryCtxt>
  65: <rustc_interface::passes::QueryContext>::enter::<rustc_driver::run_compiler::{closure#1}::{closure#2}::{closure#3}, core::result::Result<(), rustc_errors::ErrorReported>>
  66: <rustc_interface::interface::Compiler>::enter::<rustc_driver::run_compiler::{closure#1}::{closure#2}, core::result::Result<core::option::Option<rustc_interface::queries::Linker>, rustc_errors::ErrorReported>>
  67: rustc_span::with_source_map::<core::result::Result<(), rustc_errors::ErrorReported>, rustc_interface::interface::create_compiler_and_run<core::result::Result<(), rustc_errors::ErrorReported>, rustc_driver::run_compiler::{closure#1}>::{closure#1}>
  68: <scoped_tls::ScopedKey<rustc_span::SessionGlobals>>::set::<rustc_interface::util::setup_callbacks_and_run_in_thread_pool_with_globals<rustc_interface::interface::run_compiler<core::result::Result<(), rustc_errors::ErrorReported>, rustc_driver::run_compiler::{closure#1}>::{closure#0}, core::result::Result<(), rustc_errors::ErrorReported>>::{closure#0}::{closure#0}, core::result::Result<(), rustc_errors::ErrorReported>>
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

error: internal compiler error: unexpected panic
Error: internal compiler error: unexpected panic
note: 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 1.59.0-nightly (e100ec5bc 2021-12-21) running on x86_64-apple-darwin

note: compiler flags: -C embed-bitcode=no -C split-debuginfo=unpacked -C debuginfo=2 -C incremental -C debuginfo=0 --crate-type bin

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

query stack during panic:
#0 [typeck] type-checking `main::{closure#0}`
#1 [mir_built] building MIR for `main::{closure#0}`
#2 [mir_const] processing MIR for `main::{closure#0}`
#3 [mir_promoted] processing `main::{closure#0}`
#4 [mir_borrowck] borrow-checking `main::{closure#0}`
#5 [analysis] running analysis passes on this crate
end of query stack

[Aaron1011]

cc @cjgillot - This looks like an unexpected interaction between your work on incr comp ExpnIds and my change to the serialization of AdtDef in #91924

[Aaron1011]

@madsmtm: Looking at both of those logs, I'm seeing Cache restored from key: Test macOS nightly-cargo-bb42fe97ad9aa82f7f4970711b46ace27c1e46fe9fa7d37a00d5a0356ccdfb2e. However, I'm having trouble finding the job that that was from. Can you try to find the most recent successful build "Test macOS nightly" job (which would have uploaded this cache result)?

If possible, can you also try to download that cached result from Github actions (as a zip file)?

[Aaron1011]

Never mind, I found it. It's https://github.com/madsmtm/objc2/runs/4604223856?check_suite_focus=true

[Aaron1011]

I've managed to reproduce this in a self-contained Github actions run: https://github.com/Aaron1011/objc2/runs/4609355435?check_suite_focus=true

[Aaron1011]

The root cause is #91921 - I'm working on a fix

[madsmtm]

Thanks for looking into it so quickly, I'm amazed you managed to figure anything out from so little information!

[Aaron1011]

@madsmtm No problem - having incremental compilation set up in your Github Actions config was a huge help.