ICE when compiling read_fonts crate with -Zsanitizer=cfi

[1c3t3a]

Code

Compiling the read_fonts crate (code) with RUSTFLAGS="-Clinker-plugin-lto -Zsanitizer=cfi" yields this error. I will try to lower down the code to a minimal reproducible example next week.

Meta

rustc --version --verbose:

rustc 1.82.0-nightly (28a58f2fa 2024-07-31)
binary: rustc
commit-hash: 28a58f2fa7f0c46b8fab8237c02471a915924fe5
commit-date: 2024-07-31
host: x86_64-unknown-linux-gnu
release: 1.82.0-nightly
LLVM version: 19.1.0

Error output

<output>

Backtrace

RUST_BACKTRACE=full RUSTFLAGS="-Clinker-plugin-lto -Zsanitizer=cfi" cargo b -Zbuild-std -Zbuild-std-features --release --target x86_64-unknown-linux-gnu
   Compiling read-fonts v0.19.3
error: internal compiler error: compiler/rustc_middle/src/ty/normalize_erasing_regions.rs:169:90: Failed to normalize std::option::Option<(Alias(Projection, AliasTy { args: [std::iter::Chain<std::iter::Flatten<std::option::IntoIter<std::iter::Map<std::slice::Iter<'{erased}, types::BigEndian<types::GlyphId>>, Closure(DefId(0:1241 ~ read_fonts[4d05]::tables::layout::{impl#6}::iter::{closure#0}), ['{erased}, i16, Binder { value: extern "RustCall" fn((&'{erased} types::BigEndian<types::GlyphId>,)) -> types::GlyphId, bound_vars: [] }, ()])>>>, std::iter::Flatten<std::option::IntoIter<std::iter::FlatMap<std::slice::Iter<'{erased}, tables::layout::RangeRecord>, std::iter::Map<std::ops::RangeInclusive<u16>, FnDef(DefId(13:68 ~ font_types[0196]::glyph_id::{impl#0}::new), [])>, FnDef(DefId(0:1251 ~ read_fonts[4d05]::tables::layout::{impl#9}::iter), [])>>>>], def_id: DefId(2:8499 ~ core[d45d]::iter::traits::iterator::Iterator::Item), .. }), Alias(Projection, AliasTy { args: [std::iter::FromFn<Closure(DefId(0:228 ~ read_fonts[4d05]::offset_array::{impl#3}::iter::{closure#0}), ['{erased}, table_ref::TableRef<'{erased}, tables::layout::SequenceRuleSetMarker>, types::Offset16, i16, Binder { value: extern "RustCall" fn(()) -> std::option::Option<std::option::Option<std::result::Result<table_ref::TableRef<'{erased}, tables::layout::SequenceRuleSetMarker>, read::ReadError>>>, bound_vars: [] }, (std::slice::Iter<'{erased}, types::BigEndian<types::Nullable<types::Offset16>>>, font_data::FontData<'{erased}>, ())])>], def_id: DefId(2:8499 ~ core[d45d]::iter::traits::iterator::Iterator::Item), .. }))>, maybe try to call `try_normalize_erasing_regions` instead

thread 'rustc' panicked at compiler/rustc_middle/src/ty/normalize_erasing_regions.rs:169:90:
Box<dyn Any>
stack backtrace:
   0:     0x7ff86949754d - std::backtrace_rs::backtrace::libunwind::trace::h32241ecce7cc97b4
                               at /rustc/28a58f2fa7f0c46b8fab8237c02471a915924fe5/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
   1:     0x7ff86949754d - std::backtrace_rs::backtrace::trace_unsynchronized::he88bad54ee1027a8
                               at /rustc/28a58f2fa7f0c46b8fab8237c02471a915924fe5/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7ff86949754d - std::sys::backtrace::_print_fmt::h1a79c79abdff1de3
                               at /rustc/28a58f2fa7f0c46b8fab8237c02471a915924fe5/library/std/src/sys/backtrace.rs:66:9
   3:     0x7ff86949754d - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h4ba39a43d3e87adf
                               at /rustc/28a58f2fa7f0c46b8fab8237c02471a915924fe5/library/std/src/sys/backtrace.rs:39:26
   4:     0x7ff8694e803b - core::fmt::rt::Argument::fmt::h6ad1535845790bc6
                               at /rustc/28a58f2fa7f0c46b8fab8237c02471a915924fe5/library/core/src/fmt/rt.rs:173:76
   5:     0x7ff8694e803b - core::fmt::write::h948fa78229aa764e
                               at /rustc/28a58f2fa7f0c46b8fab8237c02471a915924fe5/library/core/src/fmt/mod.rs:1178:21
   6:     0x7ff86948ba93 - std::io::Write::write_fmt::h60b4ed4b4cde96a3
                               at /rustc/28a58f2fa7f0c46b8fab8237c02471a915924fe5/library/std/src/io/mod.rs:1823:15
   7:     0x7ff869499d42 - std::sys::backtrace::BacktraceLock::print::h5d733821ad3e76e5
                               at /rustc/28a58f2fa7f0c46b8fab8237c02471a915924fe5/library/std/src/sys/backtrace.rs:42:9
   8:     0x7ff869499d42 - std::panicking::default_hook::{{closure}}::h326e80fe334527f5
                               at /rustc/28a58f2fa7f0c46b8fab8237c02471a915924fe5/library/std/src/panicking.rs:266:22
   9:     0x7ff8694999ae - std::panicking::default_hook::h154dcec67b5cc2b3
                               at /rustc/28a58f2fa7f0c46b8fab8237c02471a915924fe5/library/std/src/panicking.rs:293:9
  10:     0x7ff865abeef7 - std[6735b9bece8a6c64]::panicking::update_hook::<alloc[950cb356210e115c]::boxed::Box<rustc_driver_impl[5e3d74da74d89118]::install_ice_hook::{closure#0}>>::{closure#0}
  11:     0x7ff86949a732 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h46ade2009b590b71
                               at /rustc/28a58f2fa7f0c46b8fab8237c02471a915924fe5/library/alloc/src/boxed.rs:2162:9
  12:     0x7ff86949a732 - std::panicking::rust_panic_with_hook::haa0d1f76c5d6487e
                               at /rustc/28a58f2fa7f0c46b8fab8237c02471a915924fe5/library/std/src/panicking.rs:805:13
  13:     0x7ff865af95e1 - std[6735b9bece8a6c64]::panicking::begin_panic::<rustc_errors[7a55141d834a6923]::ExplicitBug>::{closure#0}
  14:     0x7ff865aec486 - std[6735b9bece8a6c64]::sys::backtrace::__rust_end_short_backtrace::<std[6735b9bece8a6c64]::panicking::begin_panic<rustc_errors[7a55141d834a6923]::ExplicitBug>::{closure#0}, !>
  15:     0x7ff865aec436 - std[6735b9bece8a6c64]::panicking::begin_panic::<rustc_errors[7a55141d834a6923]::ExplicitBug>
  16:     0x7ff865b02d01 - <rustc_errors[7a55141d834a6923]::diagnostic::BugAbort as rustc_errors[7a55141d834a6923]::diagnostic::EmissionGuarantee>::emit_producing_guarantee
  17:     0x7ff8660d9074 - rustc_middle[7c03d9d3aaa26afb]::util::bug::opt_span_bug_fmt::<rustc_span[c29b4e18ee0a3f38]::span_encoding::Span>::{closure#0}
  18:     0x7ff8660be10a - rustc_middle[7c03d9d3aaa26afb]::ty::context::tls::with_opt::<rustc_middle[7c03d9d3aaa26afb]::util::bug::opt_span_bug_fmt<rustc_span[c29b4e18ee0a3f38]::span_encoding::Span>::{closure#0}, !>::{closure#0}
  19:     0x7ff8660bdf8b - rustc_middle[7c03d9d3aaa26afb]::ty::context::tls::with_context_opt::<rustc_middle[7c03d9d3aaa26afb]::ty::context::tls::with_opt<rustc_middle[7c03d9d3aaa26afb]::util::bug::opt_span_bug_fmt<rustc_span[c29b4e18ee0a3f38]::span_encoding::Span>::{closure#0}, !>::{closure#0}, !>
  20:     0x7ff863e8ce10 - rustc_middle[7c03d9d3aaa26afb]::util::bug::bug_fmt
  21:     0x7ff86758e246 - <rustc_middle[7c03d9d3aaa26afb]::ty::normalize_erasing_regions::NormalizeAfterErasingRegionsFolder as rustc_type_ir[d459e222c9f6e896]::fold::TypeFolder<rustc_middle[7c03d9d3aaa26afb]::ty::context::TyCtxt>>::fold_ty
  22:     0x7ff86758d818 - <rustc_type_ir[d459e222c9f6e896]::ty_kind::FnSig<rustc_middle[7c03d9d3aaa26afb]::ty::context::TyCtxt> as rustc_type_ir[d459e222c9f6e896]::fold::TypeFoldable<rustc_middle[7c03d9d3aaa26afb]::ty::context::TyCtxt>>::try_fold_with::<rustc_middle[7c03d9d3aaa26afb]::ty::normalize_erasing_regions::NormalizeAfterErasingRegionsFolder>
  23:     0x7ff8677c1ba2 - rustc_ty_utils[cb5e61cfc0450708]::abi::fn_abi_new_uncached
  24:     0x7ff8677bb121 - rustc_ty_utils[cb5e61cfc0450708]::abi::fn_abi_of_instance
  25:     0x7ff8677b9b79 - rustc_query_impl[bf72133feb0f109a]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[bf72133feb0f109a]::query_impl::fn_abi_of_instance::dynamic_query::{closure#2}::{closure#0}, rustc_middle[7c03d9d3aaa26afb]::query::erase::Erased<[u8; 16usize]>>
  26:     0x7ff8677b7b40 - rustc_query_system[c0479f94767de6d]::query::plumbing::try_execute_query::<rustc_query_impl[bf72133feb0f109a]::DynamicConfig<rustc_query_system[c0479f94767de6d]::query::caches::DefaultCache<rustc_middle[7c03d9d3aaa26afb]::ty::ParamEnvAnd<(rustc_middle[7c03d9d3aaa26afb]::ty::instance::Instance, &rustc_middle[7c03d9d3aaa26afb]::ty::list::RawList<(), rustc_middle[7c03d9d3aaa26afb]::ty::Ty>)>, rustc_middle[7c03d9d3aaa26afb]::query::erase::Erased<[u8; 16usize]>>, false, false, false>, rustc_query_impl[bf72133feb0f109a]::plumbing::QueryCtxt, false>
  27:     0x7ff8677b778c - rustc_query_impl[bf72133feb0f109a]::query_impl::fn_abi_of_instance::get_query_non_incr::__rust_end_short_backtrace
  28:     0x7ff86659d3a6 - rustc_sanitizers[41cc9708b15e165d]::cfi::typeid::itanium_cxx_abi::typeid_for_instance
  29:     0x7ff8642fa5a4 - <rustc_codegen_llvm[6693dbe16cf67684]::context::CodegenCx as rustc_codegen_ssa[5ffe24d12073cde6]::traits::declare::PreDefineMethods>::predefine_fn
  30:     0x7ff867e9fda1 - rustc_codegen_llvm[6693dbe16cf67684]::base::compile_codegen_unit::module_codegen
  31:     0x7ff867e9d082 - <rustc_codegen_llvm[6693dbe16cf67684]::LlvmCodegenBackend as rustc_codegen_ssa[5ffe24d12073cde6]::traits::backend::ExtraBackendMethods>::compile_codegen_unit
  32:     0x7ff868083b66 - <rustc_codegen_llvm[6693dbe16cf67684]::LlvmCodegenBackend as rustc_codegen_ssa[5ffe24d12073cde6]::traits::backend::CodegenBackend>::codegen_crate
  33:     0x7ff8680b4158 - <rustc_interface[1300cdbf8ee6dff9]::queries::Linker>::codegen_and_build_linker
  34:     0x7ff867ed7d3b - rustc_interface[1300cdbf8ee6dff9]::interface::run_compiler::<core[53251afa801eb14e]::result::Result<(), rustc_span[c29b4e18ee0a3f38]::ErrorGuaranteed>, rustc_driver_impl[5e3d74da74d89118]::run_compiler::{closure#0}>::{closure#1}
  35:     0x7ff867e0c809 - std[6735b9bece8a6c64]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[1300cdbf8ee6dff9]::util::run_in_thread_with_globals<rustc_interface[1300cdbf8ee6dff9]::util::run_in_thread_pool_with_globals<rustc_interface[1300cdbf8ee6dff9]::interface::run_compiler<core[53251afa801eb14e]::result::Result<(), rustc_span[c29b4e18ee0a3f38]::ErrorGuaranteed>, rustc_driver_impl[5e3d74da74d89118]::run_compiler::{closure#0}>::{closure#1}, core[53251afa801eb14e]::result::Result<(), rustc_span[c29b4e18ee0a3f38]::ErrorGuaranteed>>::{closure#0}, core[53251afa801eb14e]::result::Result<(), rustc_span[c29b4e18ee0a3f38]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[53251afa801eb14e]::result::Result<(), rustc_span[c29b4e18ee0a3f38]::ErrorGuaranteed>>
  36:     0x7ff867e0c5b2 - <<std[6735b9bece8a6c64]::thread::Builder>::spawn_unchecked_<rustc_interface[1300cdbf8ee6dff9]::util::run_in_thread_with_globals<rustc_interface[1300cdbf8ee6dff9]::util::run_in_thread_pool_with_globals<rustc_interface[1300cdbf8ee6dff9]::interface::run_compiler<core[53251afa801eb14e]::result::Result<(), rustc_span[c29b4e18ee0a3f38]::ErrorGuaranteed>, rustc_driver_impl[5e3d74da74d89118]::run_compiler::{closure#0}>::{closure#1}, core[53251afa801eb14e]::result::Result<(), rustc_span[c29b4e18ee0a3f38]::ErrorGuaranteed>>::{closure#0}, core[53251afa801eb14e]::result::Result<(), rustc_span[c29b4e18ee0a3f38]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[53251afa801eb14e]::result::Result<(), rustc_span[c29b4e18ee0a3f38]::ErrorGuaranteed>>::{closure#1} as core[53251afa801eb14e]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  37:     0x7ff8694a455b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7501bf06aeb0baa1
                               at /rustc/28a58f2fa7f0c46b8fab8237c02471a915924fe5/library/alloc/src/boxed.rs:2148:9
  38:     0x7ff8694a455b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h822e7161a8507b21
                               at /rustc/28a58f2fa7f0c46b8fab8237c02471a915924fe5/library/alloc/src/boxed.rs:2148:9
  39:     0x7ff8694a455b - std::sys::pal::unix::thread::Thread::new::thread_start::hd2564588fac3af04
                               at /rustc/28a58f2fa7f0c46b8fab8237c02471a915924fe5/library/std/src/sys/pal/unix/thread.rs:105:17
  40:     0x7ff8624a539c - start_thread
                               at ./nptl/pthread_create.c:444:8
  41:     0x7ff862526608 - __GI___clone3
                               at ./misc/../sysdeps/unix/sysv/linux/x86_64/clone3.S:78
  42:                0x0 - <unknown>

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: please make sure that you have updated to the latest nightly

note: please attach the file at `/usr/local/google/home/bkersting/.cargo/registry/src/index.crates.io-6f17d22bba15001f/read-fonts-0.19.3/rustc-ice-2024-08-01T09_45_29-517103.txt` to your bug report

note: compiler flags: --crate-type lib -C opt-level=3 -C embed-bitcode=no -C strip=debuginfo -Z unstable-options -C linker-plugin-lto -Z sanitizer=cfi

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

query stack during panic:
#0 [fn_abi_of_instance] computing call ABI of `<core::iter::adapters::zip::Zip<core::iter::adapters::chain::Chain<core::iter::adapters::flatten::Flatten<core::option::IntoIter<core::iter::adapters::map::Map<core::slice::iter::Iter<'_, font_types::raw::BigEndian<font_types::glyph_id::GlyphId>>, {closure@/usr/local/google/home/bkersting/.cargo/registry/src/index.crates.io-6f17d22bba15001f/read-fonts-0.19.3/src/tables/layout.rs:151:75: 151:78}>>>, core::iter::adapters::flatten::Flatten<core::option::IntoIter<core::iter::adapters::flatten::FlatMap<core::slice::iter::Iter<'_, tables::layout::RangeRecord>, core::iter::adapters::map::Map<core::ops::range::RangeInclusive<u16>, font_types::glyph_id::GlyphId::new>, tables::layout::<impl at /usr/local/google/home/bkersting/.cargo/registry/src/index.crates.io-6f17d22bba15001f/read-fonts-0.19.3/src/tables/layout.rs:205:1: 205:17>::iter>>>>, core::iter::sources::from_fn::FromFn<{closure@/usr/local/google/home/bkersting/.cargo/registry/src/index.crates.io-6f17d22bba15001f/read-fonts-0.19.3/src/offset_array.rs:143:28: 143:35}>> as core::iter::traits::iterator::Iterator>::next`
end of query stack
error: could not compile `read-fonts` (lib)

[matthiaskrgr]

this is probably a duplicate of #114160

[1c3t3a]

Thanks @matthiaskrgr, it very much looks like it!

[rcvalle]

This was fixed in #128580.