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ICE: library/core/src/slice/index.rs:73:5: out of range slice #96259

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rvantonder opened this issue Apr 20, 2022 · 6 comments
Closed

ICE: library/core/src/slice/index.rs:73:5: out of range slice #96259

rvantonder opened this issue Apr 20, 2022 · 6 comments
Labels
C-bug Category: This is a bug. E-needs-test Call for participation: An issue has been fixed and does not reproduce, but no test has been added. glacier ICE tracked in rust-lang/glacier. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.

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@rvantonder
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Code

Minimal "readable" code:

#[derive(Print)]
struct Foo<#[cfg] A, B> {
    third: [u8; {
        #[cfg] let a =      #[cfg] u8, #[] bool,

via comby-reducer

Truly minimized:

#[derive(P]struct o<#[cfg]B>{t:[0;{#[cfg]let 0=#[cfg]0,

via afl-tmin on the above

Meta

On nightly

rustc --version --verbose:

rustc 1.62.0-nightly (4ca19e09d 2022-04-19)
binary: rustc
commit-hash: 4ca19e09d302a4cbde14f9cb1bc109179dc824cd
commit-date: 2022-04-19
host: x86_64-unknown-linux-gnu
release: 1.62.0-nightly
LLVM version: 14.0.1

Error output

thread 'rustc' panicked at 'range end index 9 out of range for slice of length 8', library/core/src/slice/index.rs:73:5
Backtrace 

stack backtrace:
   0:     0x7f8835ae385d - std::backtrace_rs::backtrace::libunwind::trace::hd79e9b51bb0b02a3
                               at /rustc/4ca19e09d302a4cbde14f9cb1bc109179dc824cd/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
   1:     0x7f8835ae385d - std::backtrace_rs::backtrace::trace_unsynchronized::hc4b2624d11f57391
                               at /rustc/4ca19e09d302a4cbde14f9cb1bc109179dc824cd/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7f8835ae385d - std::sys_common::backtrace::_print_fmt::h5b920b6df28041d5
                               at /rustc/4ca19e09d302a4cbde14f9cb1bc109179dc824cd/library/std/src/sys_common/backtrace.rs:66:5
   3:     0x7f8835ae385d - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h01f2db48eea34166
                               at /rustc/4ca19e09d302a4cbde14f9cb1bc109179dc824cd/library/std/src/sys_common/backtrace.rs:45:22
   4:     0x7f8835b3eefc - core::fmt::write::h743b8fce003c331c
                               at /rustc/4ca19e09d302a4cbde14f9cb1bc109179dc824cd/library/core/src/fmt/mod.rs:1194:17
   5:     0x7f8835ad5041 - std::io::Write::write_fmt::h55edc38b905db9b5
                               at /rustc/4ca19e09d302a4cbde14f9cb1bc109179dc824cd/library/std/src/io/mod.rs:1655:15
   6:     0x7f8835ae6575 - std::sys_common::backtrace::_print::h72c54a6b7a86b7bf
                               at /rustc/4ca19e09d302a4cbde14f9cb1bc109179dc824cd/library/std/src/sys_common/backtrace.rs:48:5
   7:     0x7f8835ae6575 - std::sys_common::backtrace::print::h8b541992f5fa33c9
                               at /rustc/4ca19e09d302a4cbde14f9cb1bc109179dc824cd/library/std/src/sys_common/backtrace.rs:35:9
   8:     0x7f8835ae6575 - std::panicking::default_hook::{{closure}}::h47e8a61e5844dea4
                               at /rustc/4ca19e09d302a4cbde14f9cb1bc109179dc824cd/library/std/src/panicking.rs:295:22
   9:     0x7f8835ae61e9 - std::panicking::default_hook::h65ae1796882c178c
                               at /rustc/4ca19e09d302a4cbde14f9cb1bc109179dc824cd/library/std/src/panicking.rs:314:9
  10:     0x7f88362845a1 - rustc_driver[caca827775d68846]::DEFAULT_HOOK::{closure#0}::{closure#0}
  11:     0x7f8835ae6d46 - std::panicking::rust_panic_with_hook::h1c3eee211b989bad
                               at /rustc/4ca19e09d302a4cbde14f9cb1bc109179dc824cd/library/std/src/panicking.rs:702:17
  12:     0x7f8835ae6b47 - std::panicking::begin_panic_handler::{{closure}}::h653627205f5b2cdc
                               at /rustc/4ca19e09d302a4cbde14f9cb1bc109179dc824cd/library/std/src/panicking.rs:588:13
  13:     0x7f8835ae3d14 - std::sys_common::backtrace::__rust_end_short_backtrace::h36d845a914b6aae7
                               at /rustc/4ca19e09d302a4cbde14f9cb1bc109179dc824cd/library/std/src/sys_common/backtrace.rs:138:18
  14:     0x7f8835ae6879 - rust_begin_unwind
                               at /rustc/4ca19e09d302a4cbde14f9cb1bc109179dc824cd/library/std/src/panicking.rs:584:5
  15:     0x7f8835aabbd3 - core::panicking::panic_fmt::hb6389d787a80a806
                               at /rustc/4ca19e09d302a4cbde14f9cb1bc109179dc824cd/library/core/src/panicking.rs:142:14
  16:     0x7f8835b41656 - core::slice::index::slice_end_index_len_fail_rt::he7be6edaae32d23c
                               at /rustc/4ca19e09d302a4cbde14f9cb1bc109179dc824cd/library/core/src/slice/index.rs:73:5
  17:     0x7f8835b33a37 - core::ops::function::FnOnce::call_once::h620bfc375d5c0e55
                               at /rustc/4ca19e09d302a4cbde14f9cb1bc109179dc824cd/library/core/src/ops/function.rs:248:5
  18:     0x7f8835b3a3c6 - core::intrinsics::const_eval_select::h02c57ce24d1aade4
                               at /rustc/4ca19e09d302a4cbde14f9cb1bc109179dc824cd/library/core/src/intrinsics.rs:2370:5
  19:     0x7f8835aabce6 - core::slice::index::slice_end_index_len_fail::hac0d918f9000e153
                               at /rustc/4ca19e09d302a4cbde14f9cb1bc109179dc824cd/library/core/src/slice/index.rs:67:9
  20:     0x7f8837f73328 - <rustc_parse[58f4b13f8d1bf4e]::parser::attr_wrapper::LazyTokenStreamImpl as rustc_ast[5660607621a98d76]::tokenstream::CreateTokenStream>::create_token_stream
  21:     0x7f8838978a35 - <&mut <rustc_expand[8eb2b2253b629b81]::config::StripUnconfigured>::configure_tokens::{closure#0} as core[864d7ae58f623181]::ops::function::FnOnce<(&(rustc_ast[5660607621a98d76]::tokenstream::AttrAnnotatedTokenTree, rustc_ast[5660607621a98d76]::tokenstream::Spacing),)>>::call_once
  22:     0x7f8838998d0e - <alloc[642b2cd0ec1e1a81]::vec::Vec<(rustc_ast[5660607621a98d76]::tokenstream::AttrAnnotatedTokenTree, rustc_ast[5660607621a98d76]::tokenstream::Spacing)> as alloc[642b2cd0ec1e1a81]::vec::spec_from_iter::SpecFromIter<(rustc_ast[5660607621a98d76]::tokenstream::AttrAnnotatedTokenTree, rustc_ast[5660607621a98d76]::tokenstream::Spacing), core[864d7ae58f623181]::iter::adapters::flatten::FlatMap<core[864d7ae58f623181]::slice::iter::Iter<(rustc_ast[5660607621a98d76]::tokenstream::AttrAnnotatedTokenTree, rustc_ast[5660607621a98d76]::tokenstream::Spacing)>, core[864d7ae58f623181]::option::IntoIter<(rustc_ast[5660607621a98d76]::tokenstream::AttrAnnotatedTokenTree, rustc_ast[5660607621a98d76]::tokenstream::Spacing)>, <rustc_expand[8eb2b2253b629b81]::config::StripUnconfigured>::configure_tokens::{closure#0}>>>::from_iter
  23:     0x7f8838978b39 - <&mut <rustc_expand[8eb2b2253b629b81]::config::StripUnconfigured>::configure_tokens::{closure#0} as core[864d7ae58f623181]::ops::function::FnOnce<(&(rustc_ast[5660607621a98d76]::tokenstream::AttrAnnotatedTokenTree, rustc_ast[5660607621a98d76]::tokenstream::Spacing),)>>::call_once
  24:     0x7f8838998eeb - <alloc[642b2cd0ec1e1a81]::vec::Vec<(rustc_ast[5660607621a98d76]::tokenstream::AttrAnnotatedTokenTree, rustc_ast[5660607621a98d76]::tokenstream::Spacing)> as alloc[642b2cd0ec1e1a81]::vec::spec_from_iter::SpecFromIter<(rustc_ast[5660607621a98d76]::tokenstream::AttrAnnotatedTokenTree, rustc_ast[5660607621a98d76]::tokenstream::Spacing), core[864d7ae58f623181]::iter::adapters::flatten::FlatMap<core[864d7ae58f623181]::slice::iter::Iter<(rustc_ast[5660607621a98d76]::tokenstream::AttrAnnotatedTokenTree, rustc_ast[5660607621a98d76]::tokenstream::Spacing)>, core[864d7ae58f623181]::option::IntoIter<(rustc_ast[5660607621a98d76]::tokenstream::AttrAnnotatedTokenTree, rustc_ast[5660607621a98d76]::tokenstream::Spacing)>, <rustc_expand[8eb2b2253b629b81]::config::StripUnconfigured>::configure_tokens::{closure#0}>>>::from_iter
  25:     0x7f8838978b39 - <&mut <rustc_expand[8eb2b2253b629b81]::config::StripUnconfigured>::configure_tokens::{closure#0} as core[864d7ae58f623181]::ops::function::FnOnce<(&(rustc_ast[5660607621a98d76]::tokenstream::AttrAnnotatedTokenTree, rustc_ast[5660607621a98d76]::tokenstream::Spacing),)>>::call_once
  26:     0x7f8838998eeb - <alloc[642b2cd0ec1e1a81]::vec::Vec<(rustc_ast[5660607621a98d76]::tokenstream::AttrAnnotatedTokenTree, rustc_ast[5660607621a98d76]::tokenstream::Spacing)> as alloc[642b2cd0ec1e1a81]::vec::spec_from_iter::SpecFromIter<(rustc_ast[5660607621a98d76]::tokenstream::AttrAnnotatedTokenTree, rustc_ast[5660607621a98d76]::tokenstream::Spacing), core[864d7ae58f623181]::iter::adapters::flatten::FlatMap<core[864d7ae58f623181]::slice::iter::Iter<(rustc_ast[5660607621a98d76]::tokenstream::AttrAnnotatedTokenTree, rustc_ast[5660607621a98d76]::tokenstream::Spacing)>, core[864d7ae58f623181]::option::IntoIter<(rustc_ast[5660607621a98d76]::tokenstream::AttrAnnotatedTokenTree, rustc_ast[5660607621a98d76]::tokenstream::Spacing)>, <rustc_expand[8eb2b2253b629b81]::config::StripUnconfigured>::configure_tokens::{closure#0}>>>::from_iter
  27:     0x7f8838978b39 - <&mut <rustc_expand[8eb2b2253b629b81]::config::StripUnconfigured>::configure_tokens::{closure#0} as core[864d7ae58f623181]::ops::function::FnOnce<(&(rustc_ast[5660607621a98d76]::tokenstream::AttrAnnotatedTokenTree, rustc_ast[5660607621a98d76]::tokenstream::Spacing),)>>::call_once
  28:     0x7f8838998eeb - <alloc[642b2cd0ec1e1a81]::vec::Vec<(rustc_ast[5660607621a98d76]::tokenstream::AttrAnnotatedTokenTree, rustc_ast[5660607621a98d76]::tokenstream::Spacing)> as alloc[642b2cd0ec1e1a81]::vec::spec_from_iter::SpecFromIter<(rustc_ast[5660607621a98d76]::tokenstream::AttrAnnotatedTokenTree, rustc_ast[5660607621a98d76]::tokenstream::Spacing), core[864d7ae58f623181]::iter::adapters::flatten::FlatMap<core[864d7ae58f623181]::slice::iter::Iter<(rustc_ast[5660607621a98d76]::tokenstream::AttrAnnotatedTokenTree, rustc_ast[5660607621a98d76]::tokenstream::Spacing)>, core[864d7ae58f623181]::option::IntoIter<(rustc_ast[5660607621a98d76]::tokenstream::AttrAnnotatedTokenTree, rustc_ast[5660607621a98d76]::tokenstream::Spacing)>, <rustc_expand[8eb2b2253b629b81]::config::StripUnconfigured>::configure_tokens::{closure#0}>>>::from_iter
  29:     0x7f883897c11a - <rustc_expand[8eb2b2253b629b81]::config::StripUnconfigured>::configure_tokens
  30:     0x7f88384de785 - <rustc_expand[8eb2b2253b629b81]::config::StripUnconfigured>::configure::<rustc_ast[5660607621a98d76]::ptr::P<rustc_ast[5660607621a98d76]::ast::Item>>
  31:     0x7f88384f63ae - rustc_builtin_macros[1cc46f8d8581203a]::cfg_eval::cfg_eval
  32:     0x7f88384f7751 - <rustc_builtin_macros[1cc46f8d8581203a]::derive::Expander as rustc_expand[8eb2b2253b629b81]::base::MultiItemModifier>::expand::{closure#0}
  33:     0x7f88385ec371 - <rustc_resolve[2d23a0f91d06c8ab]::Resolver as rustc_expand[8eb2b2253b629b81]::base::ResolverExpand>::resolve_derives
  34:     0x7f88384f731b - <rustc_builtin_macros[1cc46f8d8581203a]::derive::Expander as rustc_expand[8eb2b2253b629b81]::base::MultiItemModifier>::expand
  35:     0x7f8837e9b7f9 - <rustc_expand[8eb2b2253b629b81]::expand::MacroExpander>::fully_expand_fragment
  36:     0x7f88389a0c8e - <rustc_expand[8eb2b2253b629b81]::expand::MacroExpander>::expand_crate
  37:     0x7f88382d32c4 - <rustc_session[ce05394807c68a98]::session::Session>::time::<core[864d7ae58f623181]::result::Result<rustc_ast[5660607621a98d76]::ast::Crate, rustc_errors[14f27e81a88a2c7]::ErrorGuaranteed>, rustc_interface[dacacaf3651fe347]::passes::configure_and_expand::{closure#1}>
  38:     0x7f88382cdc22 - rustc_interface[dacacaf3651fe347]::passes::configure_and_expand
  39:     0x7f88382f5e17 - <rustc_interface[dacacaf3651fe347]::queries::Queries>::expansion
  40:     0x7f88382989b9 - <rustc_interface[dacacaf3651fe347]::interface::Compiler>::enter::<rustc_driver[caca827775d68846]::run_compiler::{closure#1}::{closure#2}, core[864d7ae58f623181]::result::Result<core[864d7ae58f623181]::option::Option<rustc_interface[dacacaf3651fe347]::queries::Linker>, rustc_errors[14f27e81a88a2c7]::ErrorGuaranteed>>
  41:     0x7f88382c23ff - rustc_span[ff646084812721ee]::with_source_map::<core[864d7ae58f623181]::result::Result<(), rustc_errors[14f27e81a88a2c7]::ErrorGuaranteed>, rustc_interface[dacacaf3651fe347]::interface::create_compiler_and_run<core[864d7ae58f623181]::result::Result<(), rustc_errors[14f27e81a88a2c7]::ErrorGuaranteed>, rustc_driver[caca827775d68846]::run_compiler::{closure#1}>::{closure#1}>
  42:     0x7f88382acd64 - rustc_interface[dacacaf3651fe347]::interface::create_compiler_and_run::<core[864d7ae58f623181]::result::Result<(), rustc_errors[14f27e81a88a2c7]::ErrorGuaranteed>, rustc_driver[caca827775d68846]::run_compiler::{closure#1}>
  43:     0x7f8838295fa1 - <scoped_tls[d6203f3b3010b98e]::ScopedKey<rustc_span[ff646084812721ee]::SessionGlobals>>::set::<rustc_interface[dacacaf3651fe347]::interface::run_compiler<core[864d7ae58f623181]::result::Result<(), rustc_errors[14f27e81a88a2c7]::ErrorGuaranteed>, rustc_driver[caca827775d68846]::run_compiler::{closure#1}>::{closure#0}, core[864d7ae58f623181]::result::Result<(), rustc_errors[14f27e81a88a2c7]::ErrorGuaranteed>>
  44:     0x7f88382af54f - std[fd2a1eaf3e081d4d]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[dacacaf3651fe347]::util::run_in_thread_pool_with_globals<rustc_interface[dacacaf3651fe347]::interface::run_compiler<core[864d7ae58f623181]::result::Result<(), rustc_errors[14f27e81a88a2c7]::ErrorGuaranteed>, rustc_driver[caca827775d68846]::run_compiler::{closure#1}>::{closure#0}, core[864d7ae58f623181]::result::Result<(), rustc_errors[14f27e81a88a2c7]::ErrorGuaranteed>>::{closure#0}, core[864d7ae58f623181]::result::Result<(), rustc_errors[14f27e81a88a2c7]::ErrorGuaranteed>>
  45:     0x7f88382af689 - <<std[fd2a1eaf3e081d4d]::thread::Builder>::spawn_unchecked_<rustc_interface[dacacaf3651fe347]::util::run_in_thread_pool_with_globals<rustc_interface[dacacaf3651fe347]::interface::run_compiler<core[864d7ae58f623181]::result::Result<(), rustc_errors[14f27e81a88a2c7]::ErrorGuaranteed>, rustc_driver[caca827775d68846]::run_compiler::{closure#1}>::{closure#0}, core[864d7ae58f623181]::result::Result<(), rustc_errors[14f27e81a88a2c7]::ErrorGuaranteed>>::{closure#0}, core[864d7ae58f623181]::result::Result<(), rustc_errors[14f27e81a88a2c7]::ErrorGuaranteed>>::{closure#1} as core[864d7ae58f623181]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  46:     0x7f8835af0bf3 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h211dae6d8dec3611
                               at /rustc/4ca19e09d302a4cbde14f9cb1bc109179dc824cd/library/alloc/src/boxed.rs:1866:9
  47:     0x7f8835af0bf3 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hb54334e8a7bb1f12
                               at /rustc/4ca19e09d302a4cbde14f9cb1bc109179dc824cd/library/alloc/src/boxed.rs:1866:9
  48:     0x7f8835af0bf3 - std::sys::unix::thread::Thread::new::thread_start::hf8b57655f2f2e68e
                               at /rustc/4ca19e09d302a4cbde14f9cb1bc109179dc824cd/library/std/src/sys/unix/thread.rs:108:17
  49:     0x7f883562a6db - start_thread
                               at /build/glibc-S9d2JN/glibc-2.27/nptl/pthread_create.c:463
  50:     0x7f883514b71f - __GI___clone
                               at /build/glibc-S9d2JN/glibc-2.27/misc/../sysdeps/unix/sysv/linux/x86_64/clone.S:95
  51:                0x0 - <unknown>

Notes

I searched through ICE issues and believe this is not a duplicate, but let me know! Found with compiler fuzzing tools comby-decomposer and afl-compiler-fuzzer
@rvantonder rvantonder added C-bug Category: This is a bug. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. labels Apr 20, 2022
@rust-lang-glacier-bot rust-lang-glacier-bot added the glacier ICE tracked in rust-lang/glacier. label Apr 23, 2022
@chiquidev
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Good afternoon, I'm having the same issue, any solutions?

@agroce
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agroce commented Jul 18, 2022 •
edited
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@chiquidev I'm afraid we discovered this using a fuzzer, so we haven't tried to find workarounds! You're running into this in real human-written code? Can you share the context, possibly? I'm always interested when a fuzzer-found bug is something that's a problem for real code!

@haibane-tenshi
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haibane-tenshi commented Oct 6, 2022 •
edited
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Ran into this issue while writing a hand-written parser, both on stable and nightly

compiler version

Stable:

rustc 1.64.0 (a55dd71d5 2022-09-19)
binary: rustc
commit-hash: a55dd71d5fb0ec5a6a3a9e8c27b2127ba491ce52
commit-date: 2022-09-19
host: x86_64-pc-windows-msvc
release: 1.64.0
LLVM version: 14.0.6

Nightly:

rustc 1.66.0-nightly (9c56d9d6f 2022-09-29)
binary: rustc
commit-hash: 9c56d9d6fec6262bbb1549cfe466a812ae2c6523
commit-date: 2022-09-29
host: x86_64-pc-windows-msvc
release: 1.66.0-nightly
LLVM version: 15.0.0
Error + backtrace on stable 
thread 'rustc' panicked at 'range end index 3 out of range for slice of length 2', library\core\src\slice\index.rs:73:5
stack backtrace:
   0:     0x7ffbd88d9fbf - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hf958371dc84a30d1
   1:     0x7ffbd8914b5a - core::fmt::write::h8bc5f8dfcde4777f
   2:     0x7ffbd88cc749 - <std::io::IoSlice as core::fmt::Debug>::fmt::hab1bb118c5bfde47
   3:     0x7ffbd88dd8bb - std::panicking::default_hook::hcfea80c086f9466a
   4:     0x7ffbd88dd535 - std::panicking::default_hook::hcfea80c086f9466a
   5:     0x7ffbc668c404 - rustc_driver[a0a607043376aa59]::pretty::print_after_hir_lowering
   6:     0x7ffbd88de062 - std::panicking::rust_panic_with_hook::h43b18a7cf7089063
   7:     0x7ffbd88dddfd - <std::panicking::begin_panic_handler::StrPanicPayload as core::panic::BoxMeUp>::get::h51b3df288982544c
   8:     0x7ffbd88dabf7 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hf958371dc84a30d1
   9:     0x7ffbd88ddad9 - rust_begin_unwind
  10:     0x7ffbd894ae95 - core::panicking::panic_fmt::h8a30ca8e1c32c5a5
  11:     0x7ffbd891819b - core::slice::index::slice_end_index_len_fail_rt::h50f0026ee1d37708
  12:     0x7ffbd8908cd9 - <alloc::string::FromUtf16Error as core::fmt::Debug>::fmt::h3c7bd1d5ad2e3173
  13:     0x7ffbd890fb59 - <core::num::error::ParseIntError as core::fmt::Display>::fmt::h02d30396acb0f40b
  14:     0x7ffbd894b039 - core::slice::index::slice_end_index_len_fail::hd043e08f80e8bf95
  15:     0x7ffbc88a4a6b - <rustc_middle[345e23a01d15c30c]::ty::generics::Generics>::own_substs
  16:     0x7ffbc87c4791 - <rustc_infer[9921ae7fd9eefb8a]::infer::error_reporting::need_type_info::FindInferSourceVisitor as rustc_hir[94f5a242fc3ad22c]::intravisit::Visitor>::visit_expr
  17:     0x7ffbc87c45aa - <rustc_infer[9921ae7fd9eefb8a]::infer::error_reporting::need_type_info::FindInferSourceVisitor as rustc_hir[94f5a242fc3ad22c]::intravisit::Visitor>::visit_expr
  18:     0x7ffbc87c2d61 - <rustc_infer[9921ae7fd9eefb8a]::infer::error_reporting::need_type_info::FindInferSourceVisitor as rustc_hir[94f5a242fc3ad22c]::intravisit::Visitor>::visit_body
  19:     0x7ffbc87bfb66 - <rustc_infer[9921ae7fd9eefb8a]::infer::resolve::UnresolvedTypeFinder as rustc_middle[345e23a01d15c30c]::ty::visit::TypeVisitor>::visit_ty
  20:     0x7ffbc8817164 - <rustc_infer[9921ae7fd9eefb8a]::infer::lexical_region_resolve::RegionResolutionError as core[f4e460384c48c425]::fmt::Debug>::fmt
  21:     0x7ffbc87c45aa - <rustc_infer[9921ae7fd9eefb8a]::infer::error_reporting::need_type_info::FindInferSourceVisitor as rustc_hir[94f5a242fc3ad22c]::intravisit::Visitor>::visit_expr
  22:     0x7ffbc8816ff0 - <rustc_infer[9921ae7fd9eefb8a]::infer::lexical_region_resolve::RegionResolutionError as core[f4e460384c48c425]::fmt::Debug>::fmt
  23:     0x7ffbc87c45aa - <rustc_infer[9921ae7fd9eefb8a]::infer::error_reporting::need_type_info::FindInferSourceVisitor as rustc_hir[94f5a242fc3ad22c]::intravisit::Visitor>::visit_expr
  24:     0x7ffbc8816ff0 - <rustc_infer[9921ae7fd9eefb8a]::infer::lexical_region_resolve::RegionResolutionError as core[f4e460384c48c425]::fmt::Debug>::fmt
  25:     0x7ffbc87c45aa - <rustc_infer[9921ae7fd9eefb8a]::infer::error_reporting::need_type_info::FindInferSourceVisitor as rustc_hir[94f5a242fc3ad22c]::intravisit::Visitor>::visit_expr
  26:     0x7ffbc87c4582 - <rustc_infer[9921ae7fd9eefb8a]::infer::error_reporting::need_type_info::FindInferSourceVisitor as rustc_hir[94f5a242fc3ad22c]::intravisit::Visitor>::visit_expr
  27:     0x7ffbc8817074 - <rustc_infer[9921ae7fd9eefb8a]::infer::lexical_region_resolve::RegionResolutionError as core[f4e460384c48c425]::fmt::Debug>::fmt
  28:     0x7ffbc87c45aa - <rustc_infer[9921ae7fd9eefb8a]::infer::error_reporting::need_type_info::FindInferSourceVisitor as rustc_hir[94f5a242fc3ad22c]::intravisit::Visitor>::visit_expr
  29:     0x7ffbc8813e5d - <rustc_infer[9921ae7fd9eefb8a]::infer::lexical_region_resolve::RegionResolutionError as core[f4e460384c48c425]::fmt::Debug>::fmt
  30:     0x7ffbc87c2b19 - <rustc_infer[9921ae7fd9eefb8a]::infer::error_reporting::need_type_info::FindInferSourceVisitor as rustc_hir[94f5a242fc3ad22c]::intravisit::Visitor>::visit_local
  31:     0x7ffbc8813ce8 - <rustc_infer[9921ae7fd9eefb8a]::infer::lexical_region_resolve::RegionResolutionError as core[f4e460384c48c425]::fmt::Debug>::fmt
  32:     0x7ffbc87c45aa - <rustc_infer[9921ae7fd9eefb8a]::infer::error_reporting::need_type_info::FindInferSourceVisitor as rustc_hir[94f5a242fc3ad22c]::intravisit::Visitor>::visit_expr
  33:     0x7ffbc878baf8 - <rustc_infer[9921ae7fd9eefb8a]::infer::InferCtxt>::emit_inference_failure_err
  34:     0x7ffbc87581f6 - <rustc_infer[9921ae7fd9eefb8a]::infer::InferCtxt as rustc_trait_selection[d95719c364848bec]::traits::error_reporting::InferCtxtPrivExt>::maybe_report_ambiguity
  35:     0x7ffbc87463af - <rustc_infer[9921ae7fd9eefb8a]::infer::InferCtxt as rustc_trait_selection[d95719c364848bec]::traits::error_reporting::InferCtxtExt>::report_fulfillment_errors
  36:     0x7ffbc5b8c05c - <rustc_infer[9921ae7fd9eefb8a]::infer::outlives::env::OutlivesEnvironment as rustc_typeck[d2a199ddac7b0ad4]::check::regionck::OutlivesEnvironmentExt>::add_implied_bounds
  37:     0x7ffbc5b489a5 - <rustc_typeck[d2a199ddac7b0ad4]::check::UnsafetyState>::recurse
  38:     0x7ffbc4a8ee88 - rustc_query_impl[eb123e80d0f4deec]::profiling_support::alloc_self_profile_query_strings
  39:     0x7ffbc4bd5081 - <&[rustc_span[7d253b2ad3f54c9a]::def_id::DefId] as rustc_serialize[f7496f00b61bd66d]::serialize::Decodable<rustc_query_impl[eb123e80d0f4deec]::on_disk_cache::CacheDecoder>>::decode
  40:     0x7ffbc6059adc - <rustc_span[7d253b2ad3f54c9a]::def_id::DefId as rustc_serialize[f7496f00b61bd66d]::serialize::Encodable<rustc_query_impl[eb123e80d0f4deec]::on_disk_cache::CacheEncoder>>::encode
  41:     0x7ffbc5f9cbd2 - <rustc_query_impl[eb123e80d0f4deec]::Queries as rustc_middle[345e23a01d15c30c]::ty::query::QueryEngine>::as_any
  42:     0x7ffbc5b77be5 - <<rustc_typeck[d2a199ddac7b0ad4]::check::fn_ctxt::FnCtxt>::instantiate_value_path::CreateCtorSubstsContext as rustc_typeck[d2a199ddac7b0ad4]::astconv::CreateSubstsForGenericArgsCtxt>::inferred_kind
  43:     0x7ffbc488006a - <rustc_typeck[d2a199ddac7b0ad4]::check::fn_ctxt::FnCtxt>::write_user_type_annotation
  44:     0x7ffbc4896b11 - rustc_typeck[d2a199ddac7b0ad4]::check::provide
  45:     0x7ffbc4a909ae - rustc_query_impl[eb123e80d0f4deec]::profiling_support::alloc_self_profile_query_strings
  46:     0x7ffbc4bf555e - <&[rustc_span[7d253b2ad3f54c9a]::def_id::DefId] as rustc_serialize[f7496f00b61bd66d]::serialize::Decodable<rustc_query_impl[eb123e80d0f4deec]::on_disk_cache::CacheDecoder>>::decode
  47:     0x7ffbc4b6a08d - <&[rustc_span[7d253b2ad3f54c9a]::def_id::DefId] as rustc_serialize[f7496f00b61bd66d]::serialize::Decodable<rustc_query_impl[eb123e80d0f4deec]::on_disk_cache::CacheDecoder>>::decode
  48:     0x7ffbc4ba8b3c - <&[rustc_span[7d253b2ad3f54c9a]::def_id::DefId] as rustc_serialize[f7496f00b61bd66d]::serialize::Decodable<rustc_query_impl[eb123e80d0f4deec]::on_disk_cache::CacheDecoder>>::decode
  49:     0x7ffbc487fb9a - <rustc_typeck[d2a199ddac7b0ad4]::check::fn_ctxt::FnCtxt>::write_user_type_annotation
  50:     0x7ffbc482e62b - rustc_typeck[d2a199ddac7b0ad4]::check_crate
  51:     0x7ffbc4095e45 - rustc_interface[e31b1d572a2c621e]::passes::analysis
  52:     0x7ffbc4a905de - rustc_query_impl[eb123e80d0f4deec]::profiling_support::alloc_self_profile_query_strings
  53:     0x7ffbc4beffd6 - <&[rustc_span[7d253b2ad3f54c9a]::def_id::DefId] as rustc_serialize[f7496f00b61bd66d]::serialize::Decodable<rustc_query_impl[eb123e80d0f4deec]::on_disk_cache::CacheDecoder>>::decode
  54:     0x7ffbc4b5a65f - <&[rustc_span[7d253b2ad3f54c9a]::def_id::DefId] as rustc_serialize[f7496f00b61bd66d]::serialize::Decodable<rustc_query_impl[eb123e80d0f4deec]::on_disk_cache::CacheDecoder>>::decode
  55:     0x7ffbc4bc189d - <&[rustc_span[7d253b2ad3f54c9a]::def_id::DefId] as rustc_serialize[f7496f00b61bd66d]::serialize::Decodable<rustc_query_impl[eb123e80d0f4deec]::on_disk_cache::CacheDecoder>>::decode
  56:     0x7ffbc4057cb4 - <unknown>
  57:     0x7ffbc403bd8b - <unknown>
  58:     0x7ffbc4033110 - <unknown>
  59:     0x7ffbc403cdf0 - <unknown>
  60:     0x7ffbc4068cb9 - rustc_driver[a0a607043376aa59]::args::arg_expand_all
  61:     0x7ffbc40583bd - <unknown>
  62:     0x7ffbd88eebdc - std::sys::windows::thread::Thread::new::hdf946fbfa5577747
  63:     0x7ffc315e7034 - BaseThreadInitThunk
  64:     0x7ffc31fc26a1 - RtlUserThreadStart

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 1.64.0 (a55dd71d5 2022-09-19) running on x86_64-pc-windows-msvc

note: compiler flags: --crate-type lib -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 [typeck] type-checking `parse::list`
#1 [typeck_item_bodies] type-checking all item bodies
#2 [analysis] running analysis passes on this crate
end of query stack

The part which causes issue looks like this:

struct A<T> {
    inner: T,
}

fn do_smth() -> Result<(), A<Vec<()>>> {
    Err(()).map_err(|_| {
        let inner = std::iter::once(()).collect();

        // This line triggers ICE
        A { inner }
    })?;

    Ok(())
}

Collecting into Vec makes ICE go away, e.g. let inner: Vec<_> = ....
However, this specific example compiles and I'm really struggling to produce a workable one. I hope this is helpful.

@cjgillot
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cjgillot commented Oct 9, 2022

@haibane-tenshi your backtrace points to a different place in the compiler, this is probably a different bug. Could you open a new issue with a more complete code snippet? I could not reproduce the ICE with the one you provided.

@github-actions github-actions bot mentioned this issue Mar 2, 2023
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@JohnTitor
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Triage: Fixed on the latest nightly (possibly related to #108297), marking as E-needs-test.

@JohnTitor JohnTitor added the E-needs-test Call for participation: An issue has been fixed and does not reproduce, but no test has been added. label Mar 3, 2023
@chenyukang
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Fixed by #108297, and we already have similar UI for it.

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C-bug Category: This is a bug. E-needs-test Call for participation: An issue has been fixed and does not reproduce, but no test has been added. glacier ICE tracked in rust-lang/glacier. I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ T-compiler Relevant to the compiler team, which will review and decide on the PR/issue.
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@chenyukang @rvantonder @agroce @cjgillot @JohnTitor @haibane-tenshi @chiquidev @rust-lang-glacier-bot