ICE: simd: idx 4 out of range 0..4

[matthiaskrgr]

src/test/ui/simd/shuffle-not-out-of-bounds.rs

// build-fail
#![allow(non_camel_case_types)]
#![feature(repr_simd, platform_intrinsics)]

// Test for #73542 to verify out-of-bounds shuffle vectors do not compile.

#[repr(simd)]
#[derive(Copy, Clone)]
struct u8x2([u8; 2]);

#[repr(simd)]
#[derive(Copy, Clone)]
struct u8x4([u8; 4]);

#[repr(simd)]
#[derive(Copy, Clone)]
struct u8x8([u8; 8]);

#[repr(simd)]
#[derive(Copy, Clone)]
struct u8x16([u8; 16]);

#[repr(simd)]
#[derive(Copy, Clone)]
struct u8x32([u8; 32]);

#[repr(simd)]
#[derive(Copy, Clone)]
struct u8x64([u8; 64]);

extern "platform-intrinsic" {
    pub fn simd_shuffle2<T, U>(x: T, y: T, idx: [u32; 2]) -> U;
    pub fn simd_shuffle4<T, U>(x: T, y: T, idx: [u32; 4]) -> U;
    pub fn simd_shuffle8<T, U>(x: T, y: T, idx: [u32; 8]) -> U;
    pub fn simd_shuffle16<T, U>(x: T, y: T, idx: [u32; 16]) -> U;
    pub fn simd_shuffle32<T, U>(x: T, y: T, idx: [u32; 32]) -> U;
    pub fn simd_shuffle64<T, U>(x: T, y: T, idx: [u32; 64]) -> U;
}

// Test vectors by lane size. Since LLVM does not distinguish between a shuffle
// over two f32s and a shuffle over two u64s, or any other such combination,
// it is not necessary to test every possible vector, only lane counts.
macro_rules! test_shuffle_lanes {
    ($n:literal, $x:ident, $y:ident) => {
        unsafe {
                let shuffle: $x = {
                    const ARR: [u32; $n] = {
                        let mut arr = [0; $n];
                        arr[0] = $n * 2;
                        arr
                    };
                    let mut n: u8 = $n;
                    let vals = [0; $n].map(|_| { n = n - 1; n });
                    let vec1 = $x(vals);
                    let vec2 = $x(vals);
                    $y(vec1, vec2, ARR)
                };
        }
    }
}
//~^^^^^ ERROR: invalid monomorphization of `simd_shuffle2` intrinsic
//~| ERROR: invalid monomorphization of `simd_shuffle4` intrinsic
//~| ERROR: invalid monomorphization of `simd_shuffle8` intrinsic
//~| ERROR: invalid monomorphization of `simd_shuffle16` intrinsic
//~| ERROR: invalid monomorphization of `simd_shuffle32` intrinsic
//~| ERROR: invalid monomorphization of `simd_shuffle64` intrinsic
// Because the test is mostly embedded in a macro, all the errors have the same origin point.
// And unfortunately, standard comments, as in the UI test harness, disappear in macros!

fn main() {
    test_shuffle_lanes!(2, u8x2, simd_shuffle2);
    test_shuffle_lanes!(4, u8x4, simd_shuffle4);
    test_shuffle_lanes!(8, u8x8, simd_shuffle8);
    test_shuffle_lanes!(16, u8x16, simd_shuffle16);
    test_shuffle_lanes!(32, u8x32, simd_shuffle32);
    test_shuffle_lanes!(64, u8x64, simd_shuffle64);

    extern "platform-intrinsic" {
        fn simd_shuffle<T, I, U>(a: T, b: T, i: I) -> U;
    }
    let v = u8x2([0, 0]);
    const I: [u32; 2] = [4, 4];
    unsafe {
        let _: u8x2 = simd_shuffle(v, v, I);
        //~^ ERROR invalid monomorphization of `simd_shuffle` intrinsic
    }
}

warning: unused variable: `shuffle`
  --> /home/matthias/vcs/github/rust/src/test/ui/simd/shuffle-not-out-of-bounds.rs:46:21
   |
46 |                 let shuffle: $x = {
   |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_shuffle`
...
71 |     test_shuffle_lanes!(2, u8x2, simd_shuffle2);
   |     ------------------------------------------- in this macro invocation
   |
   = note: `#[warn(unused_variables)]` on by default
   = note: this warning originates in the macro `test_shuffle_lanes` (in Nightly builds, run with -Z macro-backtrace for more info)

warning: unused variable: `shuffle`
  --> /home/matthias/vcs/github/rust/src/test/ui/simd/shuffle-not-out-of-bounds.rs:46:21
   |
46 |                 let shuffle: $x = {
   |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_shuffle`
...
72 |     test_shuffle_lanes!(4, u8x4, simd_shuffle4);
   |     ------------------------------------------- in this macro invocation
   |
   = note: this warning originates in the macro `test_shuffle_lanes` (in Nightly builds, run with -Z macro-backtrace for more info)

warning: unused variable: `shuffle`
  --> /home/matthias/vcs/github/rust/src/test/ui/simd/shuffle-not-out-of-bounds.rs:46:21
   |
46 |                 let shuffle: $x = {
   |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_shuffle`
...
73 |     test_shuffle_lanes!(8, u8x8, simd_shuffle8);
   |     ------------------------------------------- in this macro invocation
   |
   = note: this warning originates in the macro `test_shuffle_lanes` (in Nightly builds, run with -Z macro-backtrace for more info)

warning: unused variable: `shuffle`
  --> /home/matthias/vcs/github/rust/src/test/ui/simd/shuffle-not-out-of-bounds.rs:46:21
   |
46 |                 let shuffle: $x = {
   |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_shuffle`
...
74 |     test_shuffle_lanes!(16, u8x16, simd_shuffle16);
   |     ---------------------------------------------- in this macro invocation
   |
   = note: this warning originates in the macro `test_shuffle_lanes` (in Nightly builds, run with -Z macro-backtrace for more info)

warning: unused variable: `shuffle`
  --> /home/matthias/vcs/github/rust/src/test/ui/simd/shuffle-not-out-of-bounds.rs:46:21
   |
46 |                 let shuffle: $x = {
   |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_shuffle`
...
75 |     test_shuffle_lanes!(32, u8x32, simd_shuffle32);
   |     ---------------------------------------------- in this macro invocation
   |
   = note: this warning originates in the macro `test_shuffle_lanes` (in Nightly builds, run with -Z macro-backtrace for more info)

warning: unused variable: `shuffle`
  --> /home/matthias/vcs/github/rust/src/test/ui/simd/shuffle-not-out-of-bounds.rs:46:21
   |
46 |                 let shuffle: $x = {
   |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_shuffle`
...
76 |     test_shuffle_lanes!(64, u8x64, simd_shuffle64);
   |     ---------------------------------------------- in this macro invocation
   |
   = note: this warning originates in the macro `test_shuffle_lanes` (in Nightly builds, run with -Z macro-backtrace for more info)

thread 'rustc' panicked at 'idx 4 out of range 0..4', src/intrinsics/simd.rs:210:17
stack backtrace:
   0:     0x7f476cd6a3a4 - 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:     0x7f476cd6a3a4 - 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:     0x7f476cd6a3a4 - 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:     0x7f476cd6a3a4 - <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:     0x7f476cde49b8 - core::fmt::write::hd8b1d49ea978e1a7
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/fmt/mod.rs:1208:17
   5:     0x7f476cd36c9f - std::io::Write::write_fmt::h910d70db5835b5b3
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/io/mod.rs:1682:15
   6:     0x7f476cd6a1a5 - std::sys_common::backtrace::_print::hba0af3cc8e4f9e16
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:47:5
   7:     0x7f476cd6a1a5 - std::sys_common::backtrace::print::hcb425016d7f50579
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:34:9
   8:     0x7f476cd48cb4 - std::panicking::default_hook::{{closure}}::h5a92231480ffed71
   9:     0x7f476cd489c2 - std::panicking::default_hook::h6128a4fdcff47458
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:286:9
  10:     0x7f476e93b2d2 - <alloc[8442e47aebcde8b2]::boxed::Box<dyn for<'a, 'b> core[a28e3aee1dd4a69e]::ops::function::Fn<(&'a core[a28e3aee1dd4a69e]::panic::panic_info::PanicInfo<'b>,), Output = ()> + core[a28e3aee1dd4a69e]::marker::Sync + core[a28e3aee1dd4a69e]::marker::Send> as core[a28e3aee1dd4a69e]::ops::function::Fn<(&core[a28e3aee1dd4a69e]::panic::panic_info::PanicInfo,)>>::call
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/boxed.rs:2032:9
  11:     0x7f476e93b2d2 - rustc_driver[3e78653f339d986d]::DEFAULT_HOOK::{closure#0}::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_driver/src/lib.rs:1202:13
  12:     0x7f476cd49417 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::haf9ff6e68c2e05a7
                               at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/boxed.rs:2032:9
  13:     0x7f476cd49417 - std::panicking::rust_panic_with_hook::h0207dd496e646917
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:692:13
  14:     0x7f476cd6a739 - std::panicking::begin_panic_handler::{{closure}}::h4f3167dde486c20a
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:579:13
  15:     0x7f476cd6a4ee - 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
  16:     0x7f476cd48ef2 - rust_begin_unwind
                               at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:575:5
  17:     0x7f476cde9083 - core::panicking::panic_fmt::h90dee617596c399d
                               at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/panicking.rs:64:14
  18:     0x7f4766785858 - rustc_codegen_cranelift[e80a840dcfedcc0]::intrinsics::simd::codegen_simd_intrinsic_call
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/intrinsics/simd.rs:210:17
  19:     0x7f47666d629c - rustc_codegen_cranelift[e80a840dcfedcc0]::intrinsics::codegen_intrinsic_call
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/intrinsics/mod.rs:237:9
  20:     0x7f47667299fb - rustc_codegen_cranelift[e80a840dcfedcc0]::abi::codegen_terminator_call
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/abi/mod.rs:375:17
  21:     0x7f4766698b47 - rustc_codegen_cranelift[e80a840dcfedcc0]::base::codegen_fn_body::{closure#2}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/base.rs:434:21
  22:     0x7f4766698b47 - <rustc_data_structures[e855f16069d18ad7]::profiling::VerboseTimingGuard>::run::<(), rustc_codegen_cranelift[e80a840dcfedcc0]::base::codegen_fn_body::{closure#2}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_data_structures/src/profiling.rs:726:9
  23:     0x7f4766698b47 - <rustc_session[bd0fec20e3e30607]::session::Session>::time::<(), rustc_codegen_cranelift[e80a840dcfedcc0]::base::codegen_fn_body::{closure#2}>
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_session/src/utils.rs:10:9
  24:     0x7f47667612b8 - rustc_codegen_cranelift[e80a840dcfedcc0]::base::codegen_fn_body
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/base.rs:433:17
  25:     0x7f476675f077 - rustc_codegen_cranelift[e80a840dcfedcc0]::base::codegen_fn::{closure#2}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/base.rs:116:41
  26:     0x7f476675f077 - <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
  27:     0x7f476675f077 - <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
  28:     0x7f476675f077 - rustc_codegen_cranelift[e80a840dcfedcc0]::base::codegen_fn
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/base.rs:116:5
  29:     0x7f4766697e29 - 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:294:50
  30:     0x7f4766697e29 - <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
  31:     0x7f4766697e29 - <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
  32:     0x7f4766697e29 - 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:293:21
  33:     0x7f4766697e29 - <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
  34:     0x7f4766697e29 - <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
  35:     0x7f4766780069 - rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::module_codegen
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/driver/aot.rs:275:63
  36:     0x7f47666e41a6 - <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
  37:     0x7f47666fb2cd - 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:391:25
  38:     0x7f47666fb2cd - 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
  39:     0x7f47666fb2cd - <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
  40:     0x7f47666fb2cd - <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
  41:     0x7f47666c3ecc - <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
  42:     0x7f47666c3ecc - <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
  43:     0x7f47666c3ecc - <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
  44:     0x7f47666c3ecc - <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
  45:     0x7f47666c3ecc - <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
  46:     0x7f476670580e - <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
  47:     0x7f476670580e - <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
  48:     0x7f476670580e - 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:379:9
  49:     0x7f476670580e - <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
  50:     0x7f476670580e - <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
  51:     0x7f476670580e - 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:53:9
  52:     0x7f47667890bf - rustc_codegen_cranelift[e80a840dcfedcc0]::driver::aot::run_aot
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_codegen_cranelift/src/driver/aot.rs:378:19
  53:     0x7f47667890bf - <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
  54:     0x7f476eb6124a - rustc_interface[fc7473b58ef44fbd]::passes::start_codegen::{closure#0}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/passes.rs:989:9
  55:     0x7f476eb6124a - <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
  56:     0x7f476eb6124a - <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
  57:     0x7f476eb6124a - rustc_interface[fc7473b58ef44fbd]::passes::start_codegen
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/passes.rs:988:19
  58:     0x7f476eb600eb - <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
  59:     0x7f476eb600eb - <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
  60:     0x7f476eb600eb - 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
  61:     0x7f476eb600eb - 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
  62:     0x7f476eb600eb - 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
  63:     0x7f476eb600eb - <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
  64:     0x7f476ebf4fea - <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
  65:     0x7f476ebf4fea - <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
  66:     0x7f476ebf4fea - <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
  67:     0x7f476ebf4fea - <rustc_interface[fc7473b58ef44fbd]::queries::Queries>::ongoing_codegen
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_interface/src/queries.rs:239:9
  68:     0x7f476e9cbb83 - 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
  69:     0x7f476e9cbb83 - <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
  70:     0x7f476e93cf52 - rustc_driver[3e78653f339d986d]::run_compiler::{closure#1}
                               at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_driver/src/lib.rs:306:22
  71:     0x7f476e93cf52 - 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
  72:     0x7f476e93cf52 - 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
  73:     0x7f476e9bad9f - 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
  74:     0x7f476e9bad9f - <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
  75:     0x7f476e96b5c0 - 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
  76:     0x7f476e96b5c0 - 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
  77:     0x7f476e96b5c0 - 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
  78:     0x7f476e953d11 - <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
  79:     0x7f476e953d11 - <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
  80:     0x7f476e953d11 - 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
  81:     0x7f476e953d11 - 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
  82:     0x7f476e953d11 - 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
  83:     0x7f476e953d11 - <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
  84:     0x7f476e953d11 - <<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
  85:     0x7f476cd25a48 - <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
  86:     0x7f476cd25a48 - <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
  87:     0x7f476cd143b5 - 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
  88:     0x7f476ce9f8fd - <unknown>
  89:     0x7f476cf21a60 - <unknown>
  90:                0x0 - <unknown>

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 1.68.0-dev running on x86_64-unknown-linux-gnu

note: compiler flags: -Z codegen-backend=cranelift

[bjorn3]

Closing in favor of #1328.