thread 'rustc' panicked at 'index out of bounds: the len is 90 but the index is 97', compiler/rustc_query_impl/src/on_disk_cache.rs:712:18

[clubby789]

Code

Unsure where issue is appearing. Only happens when building with cargo test, no recent changes to the test code. Recently added the url crate to dependencies. After running cargo clean and rebuilding, the issue is fixed.

Meta

rustc --version --verbose:

rustc 1.59.0-nightly (f8abed9ed 2021-12-26)
binary: rustc
commit-hash: f8abed9ed48bace6be0087bcd44ed534e239b8d8
commit-date: 2021-12-26
host: x86_64-unknown-linux-gnu
release: 1.59.0-nightly
LLVM version: 13.0.0

Error output

thread 'rustc' panicked at 'index out of bounds: the len is 90 but the index is 97', compiler/rustc_query_impl/src/on_disk_cache.rs:712:18
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

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 (f8abed9ed 2021-12-26) running on x86_64-unknown-linux-gnu

note: compiler flags: -C embed-bitcode=no -C debuginfo=2 -C incremental

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

query stack during panic:
#0 [type_of] computing type of `html::DOMElement::contents`
#1 [inferred_outlives_crate] computing the inferred outlives predicates for items in this crate
end of query stack

Backtrace

thread 'rustc' panicked at 'index out of bounds: the len is 90 but the index is 97', compiler/rustc_query_impl/src/on_disk_cache.rs:712:18
stack backtrace:
   0: rust_begin_unwind
             at /rustc/f8abed9ed48bace6be0087bcd44ed534e239b8d8/library/std/src/panicking.rs:498:5
   1: core::panicking::panic_fmt
             at /rustc/f8abed9ed48bace6be0087bcd44ed534e239b8d8/library/core/src/panicking.rs:107:14
   2: core::panicking::panic_bounds_check
             at /rustc/f8abed9ed48bace6be0087bcd44ed534e239b8d8/library/core/src/panicking.rs:75:5
   3: <rustc_span::span_encoding::Span as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
   4: <rustc_middle::ty::VariantDef as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
   5: <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}>
   6: <rustc_middle::ty::adt::AdtDef as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
   7: <rustc_middle::ty::sty::TyKind as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
   8: <&rustc_middle::ty::TyS as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
   9: <&rustc_middle::ty::TyS as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
  10: <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}>
  11: <rustc_middle::ty::sty::TyKind as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
  12: <&rustc_middle::ty::TyS as rustc_serialize::serialize::Decodable<rustc_query_impl::on_disk_cache::CacheDecoder>>::decode
  13: <rustc_query_impl::on_disk_cache::OnDiskCache>::try_load_query_result::<&rustc_middle::ty::TyS>
  14: rustc_query_system::query::plumbing::try_load_from_disk_and_cache_in_memory::<rustc_query_impl::plumbing::QueryCtxt, rustc_span::def_id::DefId, &rustc_middle::ty::TyS>
  15: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::type_of
  16: <rustc_typeck::outlives::implicit_infer::InferVisitor as rustc_hir::itemlikevisit::ItemLikeVisitor>::visit_item
  17: <rustc_middle::hir::map::Map>::visit_all_item_likes::<rustc_typeck::outlives::implicit_infer::InferVisitor>
  18: rustc_typeck::outlives::inferred_outlives_crate
  19: <rustc_middle::dep_graph::dep_node::DepKind as rustc_query_system::dep_graph::DepKind>::with_deps::<<rustc_query_system::dep_graph::graph::DepGraph<rustc_middle::dep_graph::dep_node::DepKind>>::with_task_impl<rustc_middle::ty::context::TyCtxt, (), rustc_middle::ty::CratePredicatesMap>::{closure#0}, rustc_middle::ty::CratePredicatesMap>
  20: <rustc_query_system::dep_graph::graph::DepGraph<rustc_middle::dep_graph::dep_node::DepKind>>::with_task::<rustc_middle::ty::context::TyCtxt, (), rustc_middle::ty::CratePredicatesMap>
  21: rustc_data_structures::stack::ensure_sufficient_stack::<(rustc_middle::ty::CratePredicatesMap, rustc_query_system::dep_graph::graph::DepNodeIndex), rustc_query_system::query::plumbing::execute_job<rustc_query_impl::plumbing::QueryCtxt, (), rustc_middle::ty::CratePredicatesMap>::{closure#3}>
  22: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::plumbing::QueryCtxt, rustc_query_system::query::caches::ArenaCache<(), rustc_middle::ty::CratePredicatesMap>>
  23: rustc_query_system::query::plumbing::force_query::<rustc_query_impl::queries::inferred_outlives_crate, rustc_query_impl::plumbing::QueryCtxt>
  24: rustc_query_impl::query_callbacks::inferred_outlives_crate::force_from_dep_node
  25: <rustc_middle::ty::context::TyCtxt as rustc_query_system::dep_graph::DepContext>::try_force_from_dep_node
  26: <rustc_query_system::dep_graph::graph::DepGraph<rustc_middle::dep_graph::dep_node::DepKind>>::try_mark_previous_green::<rustc_query_impl::plumbing::QueryCtxt>
  27: <rustc_query_system::dep_graph::graph::DepGraph<rustc_middle::dep_graph::dep_node::DepKind>>::try_mark_previous_green::<rustc_query_impl::plumbing::QueryCtxt>
  28: <rustc_query_system::dep_graph::graph::DepGraph<rustc_middle::dep_graph::dep_node::DepKind>>::try_mark_previous_green::<rustc_query_impl::plumbing::QueryCtxt>
  29: rustc_query_system::query::plumbing::ensure_must_run::<rustc_query_impl::plumbing::QueryCtxt, rustc_span::def_id::DefId, &rustc_middle::ty::TyS>
  30: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::predicates_of
  31: <rustc_typeck::collect::CollectItemTypesVisitor as rustc_hir::intravisit::Visitor>::visit_item
  32: <rustc_middle::hir::map::Map>::visit_item_likes_in_module::<rustc_hir::intravisit::DeepVisitor<rustc_typeck::collect::CollectItemTypesVisitor>>
  33: rustc_typeck::collect::collect_mod_item_types
  34: <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, ()>
  35: rustc_data_structures::stack::ensure_sufficient_stack::<((), rustc_query_system::dep_graph::graph::DepNodeIndex), rustc_query_system::query::plumbing::execute_job<rustc_query_impl::plumbing::QueryCtxt, rustc_span::def_id::LocalDefId, ()>::{closure#3}>
  36: rustc_query_system::query::plumbing::try_execute_query::<rustc_query_impl::plumbing::QueryCtxt, rustc_query_system::query::caches::DefaultCache<rustc_span::def_id::LocalDefId, ()>>
  37: rustc_query_system::query::plumbing::get_query::<rustc_query_impl::queries::collect_mod_item_types, rustc_query_impl::plumbing::QueryCtxt>
  38: <rustc_middle::hir::map::Map>::for_each_module::<rustc_typeck::check_crate::{closure#0}::{closure#0}::{closure#0}>
  39: <rustc_session::session::Session>::track_errors::<rustc_typeck::check_crate::{closure#0}, ()>
  40: rustc_typeck::check_crate
  41: rustc_interface::passes::analysis
  42: <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>>
  43: 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}>
  44: 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>>>
  45: rustc_query_system::query::plumbing::get_query::<rustc_query_impl::queries::analysis, rustc_query_impl::plumbing::QueryCtxt>
  46: <rustc_interface::passes::QueryContext>::enter::<rustc_driver::run_compiler::{closure#1}::{closure#2}::{closure#3}, core::result::Result<(), rustc_errors::ErrorReported>>
  47: <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>>
  48: 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}>
  49: rustc_interface::interface::create_compiler_and_run::<core::result::Result<(), rustc_errors::ErrorReported>, rustc_driver::run_compiler::{closure#1}>
  50: <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

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 (f8abed9ed 2021-12-26) running on x86_64-unknown-linux-gnu

note: compiler flags: -C embed-bitcode=no -C debuginfo=2 -C incremental

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

query stack during panic:
#0 [type_of] computing type of `html::DOMElement::contents`
#1 [inferred_outlives_crate] computing the inferred outlives predicates for items in this crate
#2 [collect_mod_item_types] collecting item types in top-level module
#3 [analysis] running analysis passes on this crate
end of query stack

[compiler-errors]

probably a dupe of #92258, see #92210

@rustbot label +A-incr-comp

[csmoe]

Fixed by #92533