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ICE: unsized_locals #1312

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matthiaskrgr opened this issue Dec 16, 2022 · 2 comments
Closed

ICE: unsized_locals #1312

matthiaskrgr opened this issue Dec 16, 2022 · 2 comments
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C-bug Category: This is a bug.

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@matthiaskrgr
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rustc cranelift with debug assertions from 984eab57f708e62c09b3d708033fe620130b5f39 (rustc repo)

src/test/ui/unsized-locals/reference-unsized-locals.rs

// run-pass

#![allow(incomplete_features)]
#![feature(unsized_locals)]

fn main() {
    let foo: Box<[u8]> = Box::new(*b"foo");
    let foo: [u8] = *foo;
    assert_eq!(&foo, b"foo" as &[u8]);
}
thread '<unnamed>' panicked at 'assertion failed: layout.is_sized()', src/value_and_place.rs:367:9
stack backtrace:
   0:     0x7fdf9816a3a4 - std::backtrace_rs::backtrace::libunwind::trace::h4c97bf25d2e51ae8
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
   1:     0x7fdf9816a3a4 - std::backtrace_rs::backtrace::trace_unsynchronized::h37aa0c666953359e
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7fdf9816a3a4 - std::sys_common::backtrace::_print_fmt::hda9969f991ffe421
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:65:5
   3:     0x7fdf9816a3a4 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h43dbafa239606d9e
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:44:22
   4:     0x7fdf981e49b8 - core::fmt::write::hd8b1d49ea978e1a7
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/fmt/mod.rs:1208:17
   5:     0x7fdf98136c9f - std::io::Write::write_fmt::h910d70db5835b5b3
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/io/mod.rs:1682:15
   6:     0x7fdf9816a1a5 - std::sys_common::backtrace::_print::hba0af3cc8e4f9e16
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:47:5
   7:     0x7fdf9816a1a5 - std::sys_common::backtrace::print::hcb425016d7f50579
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:34:9
   8:     0x7fdf98148cb4 - std::panicking::default_hook::{{closure}}::h5a92231480ffed71
   9:     0x7fdf981489c2 - std::panicking::default_hook::h6128a4fdcff47458
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:286:9
  10:     0x7fdf981493f6 - std::panicking::rust_panic_with_hook::h0207dd496e646917
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:688:13
  11:     0x7fdf9816a6f2 - std::panicking::begin_panic_handler::{{closure}}::h4f3167dde486c20a
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:577:13
  12:     0x7fdf9816a4ee - std::sys_common::backtrace::__rust_end_short_backtrace::h5667162f671b6d90
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:137:18
  13:     0x7fdf98148ef2 - rust_begin_unwind
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:575:5
  14:     0x7fdf981e9083 - core::panicking::panic_fmt::h90dee617596c399d
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/panicking.rs:64:14
  15:     0x7fdf981e915d - core::panicking::panic::hdd7e78475dcf3ad1
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/panicking.rs:111:5
  16:     0x7fdf91b114a8 - <rustc_codegen_cranelift[e80a840dcfedcc0]::value_and_place::CPlace>::new_stack_slot
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/value_and_place.rs:367:9
  17:     0x7fdf91b2c985 - rustc_codegen_cranelift[e80a840dcfedcc0]::abi::make_local_place
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/abi/mod.rs:171:9
  18:     0x7fdf91b2c985 - rustc_codegen_cranelift[e80a840dcfedcc0]::abi::codegen_fn_prelude
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/abi/mod.rs:313:21
  19:     0x7fdf91b7acb9 - rustc_codegen_cranelift[e80a840dcfedcc0]::base::codegen_fn_body::{closure#1}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/base.rs:274:44
  20:     0x7fdf91b7acb9 - <rustc_data_structures[e855f16069d18ad7]::profiling::VerboseTimingGuard>::run::<(), rustc_codegen_cranelift[e80a840dcfedcc0]::base::codegen_fn_body::{closure#1}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_data_structures/src/profiling.rs:726:9
  21:     0x7fdf91b7acb9 - <rustc_session[bd0fec20e3e30607]::session::Session>::time::<(), rustc_codegen_cranelift[e80a840dcfedcc0]::base::codegen_fn_body::{closure#1}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_session/src/utils.rs:10:9
  22:     0x7fdf91b7acb9 - rustc_codegen_cranelift[e80a840dcfedcc0]::base::codegen_fn_body
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/base.rs:274:5
  23:     0x7fdf91b7934e - rustc_codegen_cranelift[e80a840dcfedcc0]::base::codegen_fn::{closure#2}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/base.rs:115:41
  24:     0x7fdf91b7934e - <rustc_data_structures[e855f16069d18ad7]::profiling::VerboseTimingGuard>::run::<(), rustc_codegen_cranelift[e80a840dcfedcc0]::base::codegen_fn::{closure#2}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_data_structures/src/profiling.rs:726:9
  25:     0x7fdf91b7934e - <rustc_session[bd0fec20e3e30607]::session::Session>::time::<(), rustc_codegen_cranelift[e80a840dcfedcc0]::base::codegen_fn::{closure#2}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_session/src/utils.rs:10:9
  26:     0x7fdf91b7934e - rustc_codegen_cranelift[e80a840dcfedcc0]::base::codegen_fn
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/base.rs:115:5
  27:     0x7fdf91a99ae9 - rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::module_codegen::{closure#0}::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/driver/aot.rs:280:50
  28:     0x7fdf91a99ae9 - <rustc_data_structures[e855f16069d18ad7]::profiling::VerboseTimingGuard>::run::<(), rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::module_codegen::{closure#0}::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_data_structures/src/profiling.rs:726:9
  29:     0x7fdf91a99ae9 - <rustc_session[bd0fec20e3e30607]::session::Session>::time::<(), rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::module_codegen::{closure#0}::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_session/src/utils.rs:10:9
  30:     0x7fdf91a99ae9 - rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::module_codegen::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/driver/aot.rs:279:21
  31:     0x7fdf91a99ae9 - <rustc_data_structures[e855f16069d18ad7]::profiling::VerboseTimingGuard>::run::<(alloc[8442e47aebcde8b2]::string::String, rustc_codegen_cranelift[e80a840dcfedcc0]::CodegenCx, cranelift_object[c5896af7f33dfa77]::backend::ObjectModule, alloc[8442e47aebcde8b2]::vec::Vec<rustc_codegen_cranelift[e80a840dcfedcc0]::base::CodegenedFunction>), rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::module_codegen::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_data_structures/src/profiling.rs:726:9
  32:     0x7fdf91a99ae9 - <rustc_session[bd0fec20e3e30607]::session::Session>::time::<(alloc[8442e47aebcde8b2]::string::String, rustc_codegen_cranelift[e80a840dcfedcc0]::CodegenCx, cranelift_object[c5896af7f33dfa77]::backend::ObjectModule, alloc[8442e47aebcde8b2]::vec::Vec<rustc_codegen_cranelift[e80a840dcfedcc0]::base::CodegenedFunction>), rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::module_codegen::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_session/src/utils.rs:10:9
  33:     0x7fdf91b83909 - rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::module_codegen
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/driver/aot.rs:261:63
  34:     0x7fdf91ae2386 - <rustc_query_system[ac6d26d16f7ebea6]::dep_graph::graph::DepGraph<rustc_middle[e9b4372b5e8bc47d]::dep_graph::dep_node::DepKind>>::with_task::<rustc_middle[e9b4372b5e8bc47d]::ty::context::TyCtxt, (rustc_codegen_cranelift[e80a840dcfedcc0]::config::BackendConfig, alloc[8442e47aebcde8b2]::sync::Arc<rustc_codegen_cranelift[e80a840dcfedcc0]::global_asm::GlobalAsmConfig>, rustc_span[8293014313a13715]::symbol::Symbol, rustc_codegen_cranelift[e80a840dcfedcc0]::concurrency_limiter::ConcurrencyLimiterToken), rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_query_system/src/dep_graph/graph.rs:296:14
  35:     0x7fdf91af8ebd - rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/driver/aot.rs:377:25
  36:     0x7fdf91af8ebd - core[a28e3aee1dd4a69e]::iter::adapters::map::map_fold::<&rustc_middle[e9b4372b5e8bc47d]::mir::mono::CodegenUnit, rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen, (), rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}::{closure#0}, core[a28e3aee1dd4a69e]::iter::traits::iterator::Iterator::for_each::call<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen, <alloc[8442e47aebcde8b2]::vec::Vec<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen>>::extend_trusted<core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::slice::iter::Iter<rustc_middle[e9b4372b5e8bc47d]::mir::mono::CodegenUnit>, rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}::{closure#0}>>::{closure#0}>::{closure#0}>::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/adapters/map.rs:84:28
  37:     0x7fdf91af8ebd - <core[a28e3aee1dd4a69e]::slice::iter::Iter<rustc_middle[e9b4372b5e8bc47d]::mir::mono::CodegenUnit> as core[a28e3aee1dd4a69e]::iter::traits::iterator::Iterator>::fold::<(), core[a28e3aee1dd4a69e]::iter::adapters::map::map_fold<&rustc_middle[e9b4372b5e8bc47d]::mir::mono::CodegenUnit, rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen, (), rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}::{closure#0}, core[a28e3aee1dd4a69e]::iter::traits::iterator::Iterator::for_each::call<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen, <alloc[8442e47aebcde8b2]::vec::Vec<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen>>::extend_trusted<core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::slice::iter::Iter<rustc_middle[e9b4372b5e8bc47d]::mir::mono::CodegenUnit>, rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}::{closure#0}>>::{closure#0}>::{closure#0}>::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/traits/iterator.rs:2415:21
  38:     0x7fdf91af8ebd - <core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::slice::iter::Iter<rustc_middle[e9b4372b5e8bc47d]::mir::mono::CodegenUnit>, rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}::{closure#0}> as core[a28e3aee1dd4a69e]::iter::traits::iterator::Iterator>::fold::<(), core[a28e3aee1dd4a69e]::iter::traits::iterator::Iterator::for_each::call<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen, <alloc[8442e47aebcde8b2]::vec::Vec<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen>>::extend_trusted<core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::slice::iter::Iter<rustc_middle[e9b4372b5e8bc47d]::mir::mono::CodegenUnit>, rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}::{closure#0}>>::{closure#0}>::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/adapters/map.rs:124:9
  39:     0x7fdf91ac1aec - <core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::slice::iter::Iter<rustc_middle[e9b4372b5e8bc47d]::mir::mono::CodegenUnit>, rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}::{closure#0}> as core[a28e3aee1dd4a69e]::iter::traits::iterator::Iterator>::for_each::<<alloc[8442e47aebcde8b2]::vec::Vec<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen>>::extend_trusted<core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::slice::iter::Iter<rustc_middle[e9b4372b5e8bc47d]::mir::mono::CodegenUnit>, rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}::{closure#0}>>::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/traits/iterator.rs:831:9
  40:     0x7fdf91ac1aec - <alloc[8442e47aebcde8b2]::vec::Vec<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen>>::extend_trusted::<core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::slice::iter::Iter<rustc_middle[e9b4372b5e8bc47d]::mir::mono::CodegenUnit>, rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}::{closure#0}>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/vec/mod.rs:2880:17
  41:     0x7fdf91ac1aec - <alloc[8442e47aebcde8b2]::vec::Vec<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen> as alloc[8442e47aebcde8b2]::vec::spec_extend::SpecExtend<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen, core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::slice::iter::Iter<rustc_middle[e9b4372b5e8bc47d]::mir::mono::CodegenUnit>, rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}::{closure#0}>>>::spec_extend
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/vec/spec_extend.rs:26:9
  42:     0x7fdf91ac1aec - <alloc[8442e47aebcde8b2]::vec::Vec<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen> as alloc[8442e47aebcde8b2]::vec::spec_from_iter_nested::SpecFromIterNested<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen, core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::slice::iter::Iter<rustc_middle[e9b4372b5e8bc47d]::mir::mono::CodegenUnit>, rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}::{closure#0}>>>::from_iter
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/vec/spec_from_iter_nested.rs:62:9
  43:     0x7fdf91ac1aec - <alloc[8442e47aebcde8b2]::vec::Vec<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen> as alloc[8442e47aebcde8b2]::vec::spec_from_iter::SpecFromIter<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen, core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::slice::iter::Iter<rustc_middle[e9b4372b5e8bc47d]::mir::mono::CodegenUnit>, rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}::{closure#0}>>>::from_iter
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/vec/spec_from_iter.rs:33:9
  44:     0x7fdf91b042de - <alloc[8442e47aebcde8b2]::vec::Vec<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen> as core[a28e3aee1dd4a69e]::iter::traits::collect::FromIterator<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen>>::from_iter::<core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::slice::iter::Iter<rustc_middle[e9b4372b5e8bc47d]::mir::mono::CodegenUnit>, rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}::{closure#0}>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/vec/mod.rs:2748:9
  45:     0x7fdf91b042de - <core[a28e3aee1dd4a69e]::iter::adapters::map::Map<core[a28e3aee1dd4a69e]::slice::iter::Iter<rustc_middle[e9b4372b5e8bc47d]::mir::mono::CodegenUnit>, rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}::{closure#0}> as core[a28e3aee1dd4a69e]::iter::traits::iterator::Iterator>::collect::<alloc[8442e47aebcde8b2]::vec::Vec<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/traits/iterator.rs:1837:9
  46:     0x7fdf91b042de - rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/driver/aot.rs:365:9
  47:     0x7fdf91b042de - <rustc_data_structures[e855f16069d18ad7]::profiling::VerboseTimingGuard>::run::<alloc[8442e47aebcde8b2]::vec::Vec<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen>, rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_data_structures/src/profiling.rs:726:9
  48:     0x7fdf91b042de - <rustc_session[bd0fec20e3e30607]::session::Session>::time::<alloc[8442e47aebcde8b2]::vec::Vec<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen>, rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_session/src/utils.rs:10:9
  49:     0x7fdf91b042de - rustc_codegen_cranelift[e80a840dcfedcc0]::driver::time::<alloc[8442e47aebcde8b2]::vec::Vec<rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::OngoingModuleCodegen>, rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/driver/mod.rs:52:9
  50:     0x7fdf91b84039 - rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/driver/aot.rs:364:19
  51:     0x7fdf91ba203e - <rustc_codegen_cranelift[e80a840dcfedcc0]::CraneliftCodegenBackend as rustc_codegen_ssa[4d2a5970bef1319e]::traits::backend::CodegenBackend>::codegen_crate
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/lib.rs:205:33
  52:     0x7fdf9b981acb - rustc_interface[fc7473b58ef44fbd]::passes::start_codegen::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/passes.rs:989:9
  53:     0x7fdf9b981acb - <rustc_data_structures[e855f16069d18ad7]::profiling::VerboseTimingGuard>::run::<alloc[8442e47aebcde8b2]::boxed::Box<dyn core[a28e3aee1dd4a69e]::any::Any>, rustc_interface[fc7473b58ef44fbd]::passes::start_codegen::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_data_structures/src/profiling.rs:726:9
  54:     0x7fdf9b981acb - <rustc_session[bd0fec20e3e30607]::session::Session>::time::<alloc[8442e47aebcde8b2]::boxed::Box<dyn core[a28e3aee1dd4a69e]::any::Any>, rustc_interface[fc7473b58ef44fbd]::passes::start_codegen::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_session/src/utils.rs:10:9
  55:     0x7fdf9b981acb - rustc_interface[fc7473b58ef44fbd]::passes::start_codegen
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/passes.rs:988:19
  56:     0x7fdf9b9809ae - <rustc_interface[fc7473b58ef44fbd]::queries::Queries>::ongoing_codegen::{closure#0}::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/queries.rs:253:20
  57:     0x7fdf9b9809ae - <rustc_interface[fc7473b58ef44fbd]::passes::QueryContext>::enter::<<rustc_interface[fc7473b58ef44fbd]::queries::Queries>::ongoing_codegen::{closure#0}::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<alloc[8442e47aebcde8b2]::boxed::Box<dyn core[a28e3aee1dd4a69e]::any::Any>, rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/passes.rs:765:42
  58:     0x7fdf9b9809ae - rustc_middle[e9b4372b5e8bc47d]::ty::context::tls::enter_context::<<rustc_interface[fc7473b58ef44fbd]::passes::QueryContext>::enter<<rustc_interface[fc7473b58ef44fbd]::queries::Queries>::ongoing_codegen::{closure#0}::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<alloc[8442e47aebcde8b2]::boxed::Box<dyn core[a28e3aee1dd4a69e]::any::Any>, rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<alloc[8442e47aebcde8b2]::boxed::Box<dyn core[a28e3aee1dd4a69e]::any::Any>, rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/context.rs:1980:50
  59:     0x7fdf9b9809ae - rustc_middle[e9b4372b5e8bc47d]::ty::context::tls::set_tlv::<rustc_middle[e9b4372b5e8bc47d]::ty::context::tls::enter_context<<rustc_interface[fc7473b58ef44fbd]::passes::QueryContext>::enter<<rustc_interface[fc7473b58ef44fbd]::queries::Queries>::ongoing_codegen::{closure#0}::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<alloc[8442e47aebcde8b2]::boxed::Box<dyn core[a28e3aee1dd4a69e]::any::Any>, rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<alloc[8442e47aebcde8b2]::boxed::Box<dyn core[a28e3aee1dd4a69e]::any::Any>, rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<alloc[8442e47aebcde8b2]::boxed::Box<dyn core[a28e3aee1dd4a69e]::any::Any>, rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/context.rs:1964:9
  60:     0x7fdf9b9809ae - rustc_middle[e9b4372b5e8bc47d]::ty::context::tls::enter_context::<<rustc_interface[fc7473b58ef44fbd]::passes::QueryContext>::enter<<rustc_interface[fc7473b58ef44fbd]::queries::Queries>::ongoing_codegen::{closure#0}::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<alloc[8442e47aebcde8b2]::boxed::Box<dyn core[a28e3aee1dd4a69e]::any::Any>, rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<alloc[8442e47aebcde8b2]::boxed::Box<dyn core[a28e3aee1dd4a69e]::any::Any>, rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/context.rs:1980:9
  61:     0x7fdf9b9809ae - <rustc_interface[fc7473b58ef44fbd]::passes::QueryContext>::enter::<<rustc_interface[fc7473b58ef44fbd]::queries::Queries>::ongoing_codegen::{closure#0}::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<alloc[8442e47aebcde8b2]::boxed::Box<dyn core[a28e3aee1dd4a69e]::any::Any>, rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/passes.rs:765:9
  62:     0x7fdf9ba128ba - <rustc_interface[fc7473b58ef44fbd]::queries::Queries>::ongoing_codegen::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/queries.rs:240:13
  63:     0x7fdf9ba128ba - <core[a28e3aee1dd4a69e]::option::Option<core[a28e3aee1dd4a69e]::result::Result<alloc[8442e47aebcde8b2]::boxed::Box<dyn core[a28e3aee1dd4a69e]::any::Any>, rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>>::get_or_insert_with::<<rustc_interface[fc7473b58ef44fbd]::queries::Queries>::ongoing_codegen::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/option.rs:1590:49
  64:     0x7fdf9ba128ba - <rustc_interface[fc7473b58ef44fbd]::queries::Query<alloc[8442e47aebcde8b2]::boxed::Box<dyn core[a28e3aee1dd4a69e]::any::Any>>>::compute::<<rustc_interface[fc7473b58ef44fbd]::queries::Queries>::ongoing_codegen::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/queries.rs:38:9
  65:     0x7fdf9ba128ba - <rustc_interface[fc7473b58ef44fbd]::queries::Queries>::ongoing_codegen
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/queries.rs:239:9
  66:     0x7fdf9ada9419 - rustc_driver[3e78653f339d986d]::run_compiler::{closure#1}::{closure#2}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_driver/src/lib.rs:395:13
  67:     0x7fdf9ada9419 - <rustc_interface[fc7473b58ef44fbd]::interface::Compiler>::enter::<rustc_driver[3e78653f339d986d]::run_compiler::{closure#1}::{closure#2}, core[a28e3aee1dd4a69e]::result::Result<core[a28e3aee1dd4a69e]::option::Option<rustc_interface[fc7473b58ef44fbd]::queries::Linker>, rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/queries.rs:380:19
  68:     0x7fdf9ad191fc - rustc_driver[3e78653f339d986d]::run_compiler::{closure#1}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_driver/src/lib.rs:306:22
  69:     0x7fdf9ad191fc - rustc_interface[fc7473b58ef44fbd]::interface::run_compiler::<core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>, rustc_driver[3e78653f339d986d]::run_compiler::{closure#1}>::{closure#0}::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/interface.rs:327:21
  70:     0x7fdf9ad191fc - rustc_span[8293014313a13715]::with_source_map::<core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>, rustc_interface[fc7473b58ef44fbd]::interface::run_compiler<core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>, rustc_driver[3e78653f339d986d]::run_compiler::{closure#1}>::{closure#0}::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_span/src/lib.rs:1016:5
  71:     0x7fdf9ad97fcb - rustc_interface[fc7473b58ef44fbd]::interface::run_compiler::<core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>, rustc_driver[3e78653f339d986d]::run_compiler::{closure#1}>::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/interface.rs:321:13
  72:     0x7fdf9ad97fcb - <scoped_tls[b7a439aa38053655]::ScopedKey<rustc_span[8293014313a13715]::SessionGlobals>>::set::<rustc_interface[fc7473b58ef44fbd]::interface::run_compiler<core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>, rustc_driver[3e78653f339d986d]::run_compiler::{closure#1}>::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>
                               at /home/matthias/.cargo/registry/src/github.com-1ecc6299db9ec823/scoped-tls-1.0.0/src/lib.rs:137:9
  73:     0x7fdf9ad47f7f - rustc_span[8293014313a13715]::create_session_globals_then::<core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>, rustc_interface[fc7473b58ef44fbd]::interface::run_compiler<core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>, rustc_driver[3e78653f339d986d]::run_compiler::{closure#1}>::{closure#0}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_span/src/lib.rs:111:5
  74:     0x7fdf9ad47f7f - rustc_interface[fc7473b58ef44fbd]::util::run_in_thread_pool_with_globals::<rustc_interface[fc7473b58ef44fbd]::interface::run_compiler<core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>, rustc_driver[3e78653f339d986d]::run_compiler::{closure#1}>::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#0}::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/util.rs:145:38
  75:     0x7fdf9ad47f7f - std[898f9bf6a8d0f504]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[fc7473b58ef44fbd]::util::run_in_thread_pool_with_globals<rustc_interface[fc7473b58ef44fbd]::interface::run_compiler<core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>, rustc_driver[3e78653f339d986d]::run_compiler::{closure#1}>::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:121:18
  76:     0x7fdf9ad301bb - <std[898f9bf6a8d0f504]::thread::Builder>::spawn_unchecked_::<rustc_interface[fc7473b58ef44fbd]::util::run_in_thread_pool_with_globals<rustc_interface[fc7473b58ef44fbd]::interface::run_compiler<core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>, rustc_driver[3e78653f339d986d]::run_compiler::{closure#1}>::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#1}::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/thread/mod.rs:550:17
  77:     0x7fdf9ad301bb - <core[a28e3aee1dd4a69e]::panic::unwind_safe::AssertUnwindSafe<<std[898f9bf6a8d0f504]::thread::Builder>::spawn_unchecked_<rustc_interface[fc7473b58ef44fbd]::util::run_in_thread_pool_with_globals<rustc_interface[fc7473b58ef44fbd]::interface::run_compiler<core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>, rustc_driver[3e78653f339d986d]::run_compiler::{closure#1}>::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#1}::{closure#0}> as core[a28e3aee1dd4a69e]::ops::function::FnOnce<()>>::call_once
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/panic/unwind_safe.rs:271:9
  78:     0x7fdf9ad301bb - std[898f9bf6a8d0f504]::panicking::try::do_call::<core[a28e3aee1dd4a69e]::panic::unwind_safe::AssertUnwindSafe<<std[898f9bf6a8d0f504]::thread::Builder>::spawn_unchecked_<rustc_interface[fc7473b58ef44fbd]::util::run_in_thread_pool_with_globals<rustc_interface[fc7473b58ef44fbd]::interface::run_compiler<core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>, rustc_driver[3e78653f339d986d]::run_compiler::{closure#1}>::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#1}::{closure#0}>, core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:483:40
  79:     0x7fdf9ad301bb - std[898f9bf6a8d0f504]::panicking::try::<core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>, core[a28e3aee1dd4a69e]::panic::unwind_safe::AssertUnwindSafe<<std[898f9bf6a8d0f504]::thread::Builder>::spawn_unchecked_<rustc_interface[fc7473b58ef44fbd]::util::run_in_thread_pool_with_globals<rustc_interface[fc7473b58ef44fbd]::interface::run_compiler<core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>, rustc_driver[3e78653f339d986d]::run_compiler::{closure#1}>::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#1}::{closure#0}>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:447:19
  80:     0x7fdf9ad301bb - std[898f9bf6a8d0f504]::panic::catch_unwind::<core[a28e3aee1dd4a69e]::panic::unwind_safe::AssertUnwindSafe<<std[898f9bf6a8d0f504]::thread::Builder>::spawn_unchecked_<rustc_interface[fc7473b58ef44fbd]::util::run_in_thread_pool_with_globals<rustc_interface[fc7473b58ef44fbd]::interface::run_compiler<core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>, rustc_driver[3e78653f339d986d]::run_compiler::{closure#1}>::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#1}::{closure#0}>, core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panic.rs:137:14
  81:     0x7fdf9ad301bb - <std[898f9bf6a8d0f504]::thread::Builder>::spawn_unchecked_::<rustc_interface[fc7473b58ef44fbd]::util::run_in_thread_pool_with_globals<rustc_interface[fc7473b58ef44fbd]::interface::run_compiler<core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>, rustc_driver[3e78653f339d986d]::run_compiler::{closure#1}>::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#1}
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/thread/mod.rs:549:30
  82:     0x7fdf9ad301bb - <<std[898f9bf6a8d0f504]::thread::Builder>::spawn_unchecked_<rustc_interface[fc7473b58ef44fbd]::util::run_in_thread_pool_with_globals<rustc_interface[fc7473b58ef44fbd]::interface::run_compiler<core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>, rustc_driver[3e78653f339d986d]::run_compiler::{closure#1}>::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#1} as core[a28e3aee1dd4a69e]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/ops/function.rs:507:5
  83:     0x7fdf9da196e8 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hbd90f1d7134662bc
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/boxed.rs:2000:9
  84:     0x7fdf9da196e8 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h1ec077bbd6166474
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/boxed.rs:2000:9
  85:     0x7fdf9da0ad35 - std::sys::unix::thread::Thread::new::thread_start::h357b5324080a198e
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys/unix/thread.rs:108:17
  86:     0x7fdf9829f8fd - <unknown>
  87:     0x7fdf98321a60 - <unknown>
  88:                0x0 - <unknown>
fn main() -> () {
    let mut _0: ();                      // return place in scope 0 at /home/matthias/vcs/github/rust/src/test/ui/unsized-locals/reference-unsized-locals.rs:6:11: 6:11
    let _1: std::boxed::Box<[u8]>;       // in scope 0 at /home/matthias/vcs/github/rust/src/test/ui/unsized-locals/reference-unsized-locals.rs:7:9: 7:12
    let mut _2: std::boxed::Box<[u8; 3]>; // in scope 0 at /home/matthias/vcs/github/rust/src/test/ui/unsized-locals/reference-unsized-locals.rs:7:26: 7:43
    let mut _3: [u8; 3];                 // in scope 0 at /home/matthias/vcs/github/rust/src/test/ui/unsized-locals/reference-unsized-locals.rs:7:35: 7:42
    let mut _4: &[u8; 3];                // in scope 0 at /home/matthias/vcs/github/rust/src/test/ui/unsized-locals/reference-unsized-locals.rs:7:36: 7:42
    let mut _6: (&&[u8], &&[u8]);        // in scope 0 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:38:15: 38:32
    let mut _7: &&[u8];                  // in scope 0 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:38:16: 38:22
    let _8: &[u8];                       // in scope 0 at /home/matthias/vcs/github/rust/src/test/ui/unsized-locals/reference-unsized-locals.rs:9:16: 9:20
    let mut _9: &&[u8];                  // in scope 0 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:38:24: 38:31
    let mut _12: bool;                   // in scope 0 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:40:20: 40:46
    let mut _13: bool;                   // in scope 0 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:40:21: 40:46
    let mut _14: &&[u8];                 // in scope 0 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:40:22: 40:31
    let mut _15: &&[u8];                 // in scope 0 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:40:35: 40:45
    let _17: !;                          // in scope 0 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:45:21: 45:114
    let mut _18: core::panicking::AssertKind; // in scope 0 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:45:54: 45:58
    let mut _19: &&[u8];                 // in scope 0 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:45:60: 45:70
    let _20: &&[u8];                     // in scope 0 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:45:60: 45:70
    let mut _21: &&[u8];                 // in scope 0 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:45:72: 45:83
    let _22: &&[u8];                     // in scope 0 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:45:72: 45:83
    let mut _23: std::option::Option<std::fmt::Arguments<'_>>; // in scope 0 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:45:85: 45:113
    let mut _25: ();                     // in scope 0 at /home/matthias/vcs/github/rust/src/test/ui/unsized-locals/reference-unsized-locals.rs:10:1: 10:2
    let mut _26: ();                     // in scope 0 at /home/matthias/vcs/github/rust/src/test/ui/unsized-locals/reference-unsized-locals.rs:10:1: 10:2
    let mut _27: *const [u8];            // in scope 0 at /home/matthias/vcs/github/rust/src/test/ui/unsized-locals/reference-unsized-locals.rs:7:9: 7:12
    scope 1 {
        debug foo => _1;                 // in scope 1 at /home/matthias/vcs/github/rust/src/test/ui/unsized-locals/reference-unsized-locals.rs:7:9: 7:12
        let _5: [u8];                    // in scope 1 at /home/matthias/vcs/github/rust/src/test/ui/unsized-locals/reference-unsized-locals.rs:8:9: 8:12
        scope 2 {
            debug foo => _5;             // in scope 2 at /home/matthias/vcs/github/rust/src/test/ui/unsized-locals/reference-unsized-locals.rs:8:9: 8:12
            let _10: &&[u8];             // in scope 2 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:39:14: 39:22
            let _11: &&[u8];             // in scope 2 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:39:24: 39:33
            let mut _24: &&[u8];         // in scope 2 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:38:24: 38:31
            scope 3 {
                debug left_val => _10;   // in scope 3 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:39:14: 39:22
                debug right_val => _11;  // in scope 3 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:39:24: 39:33
                let _16: core::panicking::AssertKind; // in scope 3 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:41:25: 41:29
                scope 4 {
                    debug kind => _16;   // in scope 4 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:41:25: 41:29
                }
            }
        }
    }

    bb0: {
        _4 = const b"foo";               // scope 0 at /home/matthias/vcs/github/rust/src/test/ui/unsized-locals/reference-unsized-locals.rs:7:36: 7:42
                                         // mir::Constant
                                         // + span: /home/matthias/vcs/github/rust/src/test/ui/unsized-locals/reference-unsized-locals.rs:7:36: 7:42
                                         // + literal: Const { ty: &[u8; 3], val: Value(Scalar(alloc1)) }
        _3 = (*_4);                      // scope 0 at /home/matthias/vcs/github/rust/src/test/ui/unsized-locals/reference-unsized-locals.rs:7:35: 7:42
        _2 = std::boxed::Box::<[u8; 3]>::new(move _3) -> bb1; // scope 0 at /home/matthias/vcs/github/rust/src/test/ui/unsized-locals/reference-unsized-locals.rs:7:26: 7:43
                                         // mir::Constant
                                         // + span: /home/matthias/vcs/github/rust/src/test/ui/unsized-locals/reference-unsized-locals.rs:7:26: 7:34
                                         // + user_ty: UserType(1)
                                         // + literal: Const { ty: fn([u8; 3]) -> std::boxed::Box<[u8; 3]> {std::boxed::Box::<[u8; 3]>::new}, val: Value(<ZST>) }
    }

    bb1: {
        _1 = move _2 as std::boxed::Box<[u8]> (Pointer(Unsize)); // scope 0 at /home/matthias/vcs/github/rust/src/test/ui/unsized-locals/reference-unsized-locals.rs:7:26: 7:43
        _27 = (((_1.0: std::ptr::Unique<[u8]>).0: std::ptr::NonNull<[u8]>).0: *const [u8]); // scope 1 at /home/matthias/vcs/github/rust/src/test/ui/unsized-locals/reference-unsized-locals.rs:8:21: 8:25
        _5 = move (*_27);                // scope 1 at /home/matthias/vcs/github/rust/src/test/ui/unsized-locals/reference-unsized-locals.rs:8:21: 8:25
        _8 = &_5;                        // scope 2 at /home/matthias/vcs/github/rust/src/test/ui/unsized-locals/reference-unsized-locals.rs:9:16: 9:20
        _7 = &_8;                        // scope 2 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:38:16: 38:22
        _24 = const _;                   // scope 2 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:38:24: 38:31
                                         // mir::Constant
                                         // + span: /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:38:24: 38:31
                                         // + literal: Const { ty: &&[u8], val: Unevaluated(main, [], Some(promoted[0])) }
        _9 = _24;                        // scope 2 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:38:24: 38:31
        Deinit(_6);                      // scope 2 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:38:15: 38:32
        (_6.0: &&[u8]) = move _7;        // scope 2 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:38:15: 38:32
        (_6.1: &&[u8]) = move _9;        // scope 2 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:38:15: 38:32
        _10 = (_6.0: &&[u8]);            // scope 2 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:39:14: 39:22
        _11 = (_6.1: &&[u8]);            // scope 2 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:39:24: 39:33
        _14 = _10;                       // scope 3 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:40:22: 40:31
        _15 = _11;                       // scope 3 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:40:35: 40:45
        _13 = <&[u8] as std::cmp::PartialEq>::eq(move _14, move _15) -> [return: bb2, unwind: bb7]; // scope 3 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:40:21: 40:46
                                         // mir::Constant
                                         // + span: /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:40:21: 40:46
                                         // + literal: Const { ty: for<'a, 'b> fn(&'a &[u8], &'b &[u8]) -> bool {<&[u8] as std::cmp::PartialEq>::eq}, val: Value(<ZST>) }
    }

    bb2: {
        _12 = Not(move _13);             // scope 3 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:40:20: 40:46
        switchInt(move _12) -> [0: bb4, otherwise: bb3]; // scope 3 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:40:20: 40:46
    }

    bb3: {
        Deinit(_16);                     // scope 3 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:41:32: 41:65
        discriminant(_16) = 0;           // scope 3 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:41:32: 41:65
        _18 = const core::panicking::AssertKind::Eq; // scope 4 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:45:54: 45:58
                                         // mir::Constant
                                         // + span: /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:45:54: 45:58
                                         // + literal: Const { ty: core::panicking::AssertKind, val: Value(Scalar(0x00)) }
        _20 = _10;                       // scope 4 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:45:60: 45:70
        _19 = _20;                       // scope 4 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:45:60: 45:70
        _22 = _11;                       // scope 4 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:45:72: 45:83
        _21 = _22;                       // scope 4 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:45:72: 45:83
        Deinit(_23);                     // scope 4 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:45:85: 45:113
        discriminant(_23) = 0;           // scope 4 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:45:85: 45:113
        _17 = core::panicking::assert_failed::<&[u8], &[u8]>(move _18, move _19, move _21, move _23) -> bb7; // scope 4 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:45:21: 45:114
                                         // mir::Constant
                                         // + span: /home/matthias/vcs/github/rust_debug_assertions/library/core/src/macros/mod.rs:45:21: 45:53
                                         // + literal: Const { ty: for<'a, 'b, 'c> fn(core::panicking::AssertKind, &'a &[u8], &'b &[u8], std::option::Option<std::fmt::Arguments<'c>>) -> ! {core::panicking::assert_failed::<&[u8], &[u8]>}, val: Value(<ZST>) }
    }

    bb4: {
        _25 = alloc::alloc::box_free::<[u8], std::alloc::Global>(move (_1.0: std::ptr::Unique<[u8]>), move (_1.1: std::alloc::Global)) -> bb5; // scope 0 at /home/matthias/vcs/github/rust/src/test/ui/unsized-locals/reference-unsized-locals.rs:10:1: 10:2
                                         // mir::Constant
                                         // + span: /home/matthias/vcs/github/rust/src/test/ui/unsized-locals/reference-unsized-locals.rs:10:1: 10:2
                                         // + literal: Const { ty: unsafe fn(std::ptr::Unique<[u8]>, std::alloc::Global) {alloc::alloc::box_free::<[u8], std::alloc::Global>}, val: Value(<ZST>) }
    }

    bb5: {
        return;                          // scope 0 at /home/matthias/vcs/github/rust/src/test/ui/unsized-locals/reference-unsized-locals.rs:10:2: 10:2
    }

    bb6 (cleanup): {
        resume;                          // scope 0 at /home/matthias/vcs/github/rust/src/test/ui/unsized-locals/reference-unsized-locals.rs:6:1: 10:2
    }

    bb7 (cleanup): {
        _26 = alloc::alloc::box_free::<[u8], std::alloc::Global>(move (_1.0: std::ptr::Unique<[u8]>), move (_1.1: std::alloc::Global)) -> bb6; // scope 0 at /home/matthias/vcs/github/rust/src/test/ui/unsized-locals/reference-unsized-locals.rs:10:1: 10:2
                                         // mir::Constant
                                         // + span: /home/matthias/vcs/github/rust/src/test/ui/unsized-locals/reference-unsized-locals.rs:10:1: 10:2
                                         // + literal: Const { ty: unsafe fn(std::ptr::Unique<[u8]>, std::alloc::Global) {alloc::alloc::box_free::<[u8], std::alloc::Global>}, val: Value(<ZST>) }
    }
}

alloc1 (size: 3, align: 1) {
    66 6f 6f                                        │ foo
}

thread '<unnamed>' panicked at 'attempt to subtract with overflow', library/std/src/panicking.rs:354:24
stack backtrace:
   0:     0x7fdf9816a3a4 - std::backtrace_rs::backtrace::libunwind::trace::h4c97bf25d2e51ae8
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
   1:     0x7fdf9816a3a4 - std::backtrace_rs::backtrace::trace_unsynchronized::h37aa0c666953359e
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7fdf9816a3a4 - std::sys_common::backtrace::_print_fmt::hda9969f991ffe421
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:65:5
   3:     0x7fdf9816a3a4 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h43dbafa239606d9e
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:44:22
   4:     0x7fdf981e49b8 - core::fmt::write::hd8b1d49ea978e1a7
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/fmt/mod.rs:1208:17
   5:     0x7fdf98136c9f - std::io::Write::write_fmt::h910d70db5835b5b3
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/io/mod.rs:1682:15
   6:     0x7fdf9816a1a5 - std::sys_common::backtrace::_print::hba0af3cc8e4f9e16
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:47:5
   7:     0x7fdf9816a1a5 - std::sys_common::backtrace::print::hcb425016d7f50579
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:34:9
   8:     0x7fdf98148cb4 - std::panicking::default_hook::{{closure}}::h5a92231480ffed71
   9:     0x7fdf981489c2 - std::panicking::default_hook::h6128a4fdcff47458
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:286:9
  10:     0x7fdf981493f6 - std::panicking::rust_panic_with_hook::h0207dd496e646917
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:688:13
  11:     0x7fdf9816a6f2 - std::panicking::begin_panic_handler::{{closure}}::h4f3167dde486c20a
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:577:13
  12:     0x7fdf9816a4ee - std::sys_common::backtrace::__rust_end_short_backtrace::h5667162f671b6d90
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:137:18
  13:     0x7fdf98148ef2 - rust_begin_unwind
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:575:5
  14:     0x7fdf981e9083 - core::panicking::panic_fmt::h90dee617596c399d
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/panicking.rs:64:14
  15:     0x7fdf981e915d - core::panicking::panic::hdd7e78475dcf3ad1
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/panicking.rs:111:5
  16:     0x7fdf9da3a139 - std::panicking::panic_count::decrease::{{closure}}::h381a70b8c44bc78e
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:354:24
  17:     0x7fdf9da3a139 - std::thread::local::LocalKey<T>::try_with::hfb2586376c38321a
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/thread/local.rs:446:16
  18:     0x7fdf9da3a139 - std::thread::local::LocalKey<T>::with::h6ebb645e2abd5414
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/thread/local.rs:422:9
  19:     0x7fdf9da3a139 - std::panicking::panic_count::decrease::h3211a746f0a5779f
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:353:9
  20:     0x7fdf9da3a139 - std::panicking::try::cleanup::h91f7c7bce2ff0fd3
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:465:9
  21:     0x7fdf9ad302d3 - std[898f9bf6a8d0f504]::panicking::try::do_catch::<core[a28e3aee1dd4a69e]::panic::unwind_safe::AssertUnwindSafe<<std[898f9bf6a8d0f504]::thread::Builder>::spawn_unchecked_<rustc_interface[fc7473b58ef44fbd]::util::run_in_thread_pool_with_globals<rustc_interface[fc7473b58ef44fbd]::interface::run_compiler<core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>, rustc_driver[3e78653f339d986d]::run_compiler::{closure#1}>::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#1}::{closure#0}>, core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:508:23
  22:     0x7fdf9ad302d3 - std[898f9bf6a8d0f504]::panicking::try::<core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>, core[a28e3aee1dd4a69e]::panic::unwind_safe::AssertUnwindSafe<<std[898f9bf6a8d0f504]::thread::Builder>::spawn_unchecked_<rustc_interface[fc7473b58ef44fbd]::util::run_in_thread_pool_with_globals<rustc_interface[fc7473b58ef44fbd]::interface::run_compiler<core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>, rustc_driver[3e78653f339d986d]::run_compiler::{closure#1}>::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#1}::{closure#0}>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:447:19
  23:     0x7fdf9ad302d3 - std[898f9bf6a8d0f504]::panic::catch_unwind::<core[a28e3aee1dd4a69e]::panic::unwind_safe::AssertUnwindSafe<<std[898f9bf6a8d0f504]::thread::Builder>::spawn_unchecked_<rustc_interface[fc7473b58ef44fbd]::util::run_in_thread_pool_with_globals<rustc_interface[fc7473b58ef44fbd]::interface::run_compiler<core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>, rustc_driver[3e78653f339d986d]::run_compiler::{closure#1}>::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#1}::{closure#0}>, core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panic.rs:137:14
  24:     0x7fdf9ad302d3 - <std[898f9bf6a8d0f504]::thread::Builder>::spawn_unchecked_::<rustc_interface[fc7473b58ef44fbd]::util::run_in_thread_pool_with_globals<rustc_interface[fc7473b58ef44fbd]::interface::run_compiler<core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>, rustc_driver[3e78653f339d986d]::run_compiler::{closure#1}>::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#1}
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/thread/mod.rs:549:30
  25:     0x7fdf9ad302d3 - <<std[898f9bf6a8d0f504]::thread::Builder>::spawn_unchecked_<rustc_interface[fc7473b58ef44fbd]::util::run_in_thread_pool_with_globals<rustc_interface[fc7473b58ef44fbd]::interface::run_compiler<core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>, rustc_driver[3e78653f339d986d]::run_compiler::{closure#1}>::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[a28e3aee1dd4a69e]::result::Result<(), rustc_errors[cecb0e7535209709]::ErrorGuaranteed>>::{closure#1} as core[a28e3aee1dd4a69e]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/ops/function.rs:507:5
  26:     0x7fdf9da196e8 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hbd90f1d7134662bc
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/boxed.rs:2000:9
  27:     0x7fdf9da196e8 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h1ec077bbd6166474
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/boxed.rs:2000:9
  28:     0x7fdf9da0ad35 - std::sys::unix::thread::Thread::new::thread_start::h357b5324080a198e
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys/unix/thread.rs:108:17
  29:     0x7fdf9829f8fd - <unknown>
  30:     0x7fdf98321a60 - <unknown>
  31:                0x0 - <unknown>
thread panicked while panicking. aborting.
[1]    408413 IOT instruction (core dumped)  ~/.rustup/toolchains/local-debug-assertions/bin/rustc
@bjorn3
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bjorn3 commented Dec 16, 2022

Unsized locals aren't implemented yet (https://github.com/bjorn3/rustc_codegen_cranelift/issues/15) as Cranelift doesn't support alloca. This shouldn't panic though. Rather it should give an error.

@bjorn3 bjorn3 closed this as completed in 9ca82a9 Dec 16, 2022
@bjorn3 bjorn3 added the C-bug Category: This is a bug. label Dec 16, 2022
@lqd
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lqd commented Dec 16, 2022

Just a note on the ICE here and the others: the message, lack of query stack and link to open an issue, double panic, etc are because of rust-lang/rust#105637, a problem due to using ThinLTO on rustc_driver, where I think the wrong panic hook is called.

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