warning: function `send_over_threads` is never used --> /tmp/icemaker_global_tempdir.231TrRoYAvzf/rustc_testrunner_tmpdir_reporting.wyoEqVG7nQrN/mvce.rs:7:4 | 7 | fn send_over_threads() { | ^^^^^^^^^^^^^^^^^ | = note: `#[warn(dead_code)]` on by default thread 'rustc' panicked at compiler/rustc_middle/src/ty/sty.rs:1716:9: assertion `left == right` failed: coroutine constructed with incorrect number of substitutions left: 5 right: 6 stack backtrace: 0: 0x7f7cb9f7ca5d - std::backtrace_rs::backtrace::libunwind::trace::hb28aaf5f3549701f at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5 1: 0x7f7cb9f7ca5d - std::backtrace_rs::backtrace::trace_unsynchronized::he4f17ec88b61fea5 at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 2: 0x7f7cb9f7ca5d - std::sys_common::backtrace::_print_fmt::h5a82a3e85aa2fae5 at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:68:5 3: 0x7f7cb9f7ca5d - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hb03764486a25b659 at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:44:22 4: 0x7f7cb9fc55cf - core::fmt::rt::Argument::fmt::h67bfbe6caf20ecda at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/fmt/rt.rs:142:9 5: 0x7f7cb9fc55cf - core::fmt::write::h2b3e0bd86bdfc209 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/fmt/mod.rs:1120:17 6: 0x7f7cb9f64285 - std::io::Write::write_fmt::hcf7284dad3d07738 at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/io/mod.rs:1854:15 7: 0x7f7cb9f7c824 - std::sys_common::backtrace::_print::h1988031c6b9fcf4a at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:47:5 8: 0x7f7cb9f7c824 - std::sys_common::backtrace::print::h81809c76434159ce at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:34:9 9: 0x7f7cb9f4022c - std::panicking::default_hook::{{closure}}::he3de9259d121bac5 10: 0x7f7cb9f3ff00 - std::panicking::default_hook::hcde334a568bf04a2 at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:292:9 11: 0x7f7cbcaffe47 - rustc_driver_impl[8889ac64fe77a2fe]::install_ice_hook::{closure#0} at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_driver_impl/src/lib.rs:1340:17 12: 0x7f7cbcaffe47 - <alloc[3b5cf733b6b27210]::boxed::Box<rustc_driver_impl[8889ac64fe77a2fe]::install_ice_hook::{closure#0}> as core[aa444211b5f41879]::ops::function::Fn<(&dyn for<'a, 'b> core[aa444211b5f41879]::ops::function::Fn<(&'a core[aa444211b5f41879]::panic::panic_info::PanicInfo<'b>,), Output = ()> + core[aa444211b5f41879]::marker::Sync + core[aa444211b5f41879]::marker::Send, &core[aa444211b5f41879]::panic::panic_info::PanicInfo)>>::call at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/boxed.rs:2029:9 13: 0x7f7cb9f40ae3 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h65cf345775a09bb6 at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/boxed.rs:2029:9 14: 0x7f7cb9f40ae3 - std::panicking::rust_panic_with_hook::hb041b1849b056e6a at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:785:13 15: 0x7f7cb9f7cf1a - std::panicking::begin_panic_handler::{{closure}}::hae61001f490e889a at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:659:13 16: 0x7f7cb9f7cd26 - std::sys_common::backtrace::__rust_end_short_backtrace::h07aab78c7d5e7b18 at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys_common/backtrace.rs:171:18 17: 0x7f7cb9f40654 - rust_begin_unwind at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:647:5 18: 0x7f7cb9fdf965 - core::panicking::panic_fmt::h7cdaca6ac7987f65 at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/panicking.rs:72:14 19: 0x7f7cb9fe0019 - core::panicking::assert_failed_inner::heed625da7882381e at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/panicking.rs:337:23 20: 0x7f7cbde2173f - core[aa444211b5f41879]::panicking::assert_failed::<usize, usize> at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/panicking.rs:297:5 21: 0x7f7cbdca142a - <rustc_middle[8414b965ec1e8931]::ty::Ty>::new_coroutine at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/sty.rs:1716:9 22: 0x7f7cbdca142a - <rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder as rustc_type_ir[929cb0070a7abace]::fold::TypeFolder<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::fold_ty at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/instance.rs:801:25 23: 0x7f7cbdc9acbc - <rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder as rustc_type_ir[929cb0070a7abace]::fold::FallibleTypeFolder<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_fold_ty at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_type_ir/src/fold.rs:241:12 24: 0x7f7cbdc9acbc - <rustc_middle[8414b965ec1e8931]::ty::Ty as rustc_type_ir[929cb0070a7abace]::fold::TypeFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_fold_with::<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder> at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/structural_impls.rs:551:9 25: 0x7f7cbdc9acbc - rustc_middle[8414b965ec1e8931]::ty::util::fold_list::<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder, rustc_middle[8414b965ec1e8931]::ty::Ty, <&rustc_middle[8414b965ec1e8931]::ty::list::List<rustc_middle[8414b965ec1e8931]::ty::Ty> as rustc_type_ir[929cb0070a7abace]::fold::TypeFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_fold_with<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder>::{closure#0}>::{closure#0} at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/util.rs:1494:61 26: 0x7f7cbdc9acbc - core[aa444211b5f41879]::iter::traits::iterator::Iterator::find_map::check::<(usize, rustc_middle[8414b965ec1e8931]::ty::Ty), (usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>), rustc_middle[8414b965ec1e8931]::ty::util::fold_list<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder, rustc_middle[8414b965ec1e8931]::ty::Ty, <&rustc_middle[8414b965ec1e8931]::ty::list::List<rustc_middle[8414b965ec1e8931]::ty::Ty> as rustc_type_ir[929cb0070a7abace]::fold::TypeFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_fold_with<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder>::{closure#0}>::{closure#0}>::{closure#0} at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/traits/iterator.rs:2958:32 27: 0x7f7cbdc9acbc - <core[aa444211b5f41879]::iter::adapters::enumerate::Enumerate<_> as core[aa444211b5f41879]::iter::traits::iterator::Iterator>::try_fold::enumerate::<rustc_middle[8414b965ec1e8931]::ty::Ty, (), core[aa444211b5f41879]::ops::control_flow::ControlFlow<(usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>)>, core[aa444211b5f41879]::iter::traits::iterator::Iterator::find_map::check<(usize, rustc_middle[8414b965ec1e8931]::ty::Ty), (usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>), rustc_middle[8414b965ec1e8931]::ty::util::fold_list<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder, rustc_middle[8414b965ec1e8931]::ty::Ty, <&rustc_middle[8414b965ec1e8931]::ty::list::List<rustc_middle[8414b965ec1e8931]::ty::Ty> as rustc_type_ir[929cb0070a7abace]::fold::TypeFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_fold_with<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder>::{closure#0}>::{closure#0}>::{closure#0}>::{closure#0} at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/adapters/enumerate.rs:86:27 28: 0x7f7cbdc9acbc - core[aa444211b5f41879]::iter::adapters::copied::copy_try_fold::<rustc_middle[8414b965ec1e8931]::ty::Ty, (), core[aa444211b5f41879]::ops::control_flow::ControlFlow<(usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>)>, <core[aa444211b5f41879]::iter::adapters::enumerate::Enumerate<_> as core[aa444211b5f41879]::iter::traits::iterator::Iterator>::try_fold::enumerate<rustc_middle[8414b965ec1e8931]::ty::Ty, (), core[aa444211b5f41879]::ops::control_flow::ControlFlow<(usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>)>, core[aa444211b5f41879]::iter::traits::iterator::Iterator::find_map::check<(usize, rustc_middle[8414b965ec1e8931]::ty::Ty), (usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>), rustc_middle[8414b965ec1e8931]::ty::util::fold_list<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder, rustc_middle[8414b965ec1e8931]::ty::Ty, <&rustc_middle[8414b965ec1e8931]::ty::list::List<rustc_middle[8414b965ec1e8931]::ty::Ty> as rustc_type_ir[929cb0070a7abace]::fold::TypeFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_fold_with<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder>::{closure#0}>::{closure#0}>::{closure#0}>::{closure#0}>::{closure#0} at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/adapters/copied.rs:36:22 29: 0x7f7cbdc9acbc - <core[aa444211b5f41879]::slice::iter::Iter<rustc_middle[8414b965ec1e8931]::ty::Ty> as core[aa444211b5f41879]::iter::traits::iterator::Iterator>::try_fold::<(), core[aa444211b5f41879]::iter::adapters::copied::copy_try_fold<rustc_middle[8414b965ec1e8931]::ty::Ty, (), core[aa444211b5f41879]::ops::control_flow::ControlFlow<(usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>)>, <core[aa444211b5f41879]::iter::adapters::enumerate::Enumerate<_> as core[aa444211b5f41879]::iter::traits::iterator::Iterator>::try_fold::enumerate<rustc_middle[8414b965ec1e8931]::ty::Ty, (), core[aa444211b5f41879]::ops::control_flow::ControlFlow<(usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>)>, core[aa444211b5f41879]::iter::traits::iterator::Iterator::find_map::check<(usize, rustc_middle[8414b965ec1e8931]::ty::Ty), (usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>), rustc_middle[8414b965ec1e8931]::ty::util::fold_list<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder, rustc_middle[8414b965ec1e8931]::ty::Ty, <&rustc_middle[8414b965ec1e8931]::ty::list::List<rustc_middle[8414b965ec1e8931]::ty::Ty> as rustc_type_ir[929cb0070a7abace]::fold::TypeFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_fold_with<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder>::{closure#0}>::{closure#0}>::{closure#0}>::{closure#0}>::{closure#0}, core[aa444211b5f41879]::ops::control_flow::ControlFlow<(usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>)>> at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/traits/iterator.rs:2462:21 30: 0x7f7cbdc9acbc - <core[aa444211b5f41879]::iter::adapters::copied::Copied<core[aa444211b5f41879]::slice::iter::Iter<rustc_middle[8414b965ec1e8931]::ty::Ty>> as core[aa444211b5f41879]::iter::traits::iterator::Iterator>::try_fold::<(), <core[aa444211b5f41879]::iter::adapters::enumerate::Enumerate<_> as core[aa444211b5f41879]::iter::traits::iterator::Iterator>::try_fold::enumerate<rustc_middle[8414b965ec1e8931]::ty::Ty, (), core[aa444211b5f41879]::ops::control_flow::ControlFlow<(usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>)>, core[aa444211b5f41879]::iter::traits::iterator::Iterator::find_map::check<(usize, rustc_middle[8414b965ec1e8931]::ty::Ty), (usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>), rustc_middle[8414b965ec1e8931]::ty::util::fold_list<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder, rustc_middle[8414b965ec1e8931]::ty::Ty, <&rustc_middle[8414b965ec1e8931]::ty::list::List<rustc_middle[8414b965ec1e8931]::ty::Ty> as rustc_type_ir[929cb0070a7abace]::fold::TypeFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_fold_with<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder>::{closure#0}>::{closure#0}>::{closure#0}>::{closure#0}, core[aa444211b5f41879]::ops::control_flow::ControlFlow<(usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>)>> at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/adapters/copied.rs:70:9 31: 0x7f7cbdc9acbc - <&mut core[aa444211b5f41879]::iter::adapters::copied::Copied<core[aa444211b5f41879]::slice::iter::Iter<rustc_middle[8414b965ec1e8931]::ty::Ty>> as core[aa444211b5f41879]::iter::traits::iterator::IteratorRefSpec>::spec_try_fold::<(), <core[aa444211b5f41879]::iter::adapters::enumerate::Enumerate<_> as core[aa444211b5f41879]::iter::traits::iterator::Iterator>::try_fold::enumerate<rustc_middle[8414b965ec1e8931]::ty::Ty, (), core[aa444211b5f41879]::ops::control_flow::ControlFlow<(usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>)>, core[aa444211b5f41879]::iter::traits::iterator::Iterator::find_map::check<(usize, rustc_middle[8414b965ec1e8931]::ty::Ty), (usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>), rustc_middle[8414b965ec1e8931]::ty::util::fold_list<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder, rustc_middle[8414b965ec1e8931]::ty::Ty, <&rustc_middle[8414b965ec1e8931]::ty::list::List<rustc_middle[8414b965ec1e8931]::ty::Ty> as rustc_type_ir[929cb0070a7abace]::fold::TypeFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_fold_with<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder>::{closure#0}>::{closure#0}>::{closure#0}>::{closure#0}, core[aa444211b5f41879]::ops::control_flow::ControlFlow<(usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>)>> at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/traits/iterator.rs:4247:9 32: 0x7f7cbdc9acbc - <&mut core[aa444211b5f41879]::iter::adapters::copied::Copied<core[aa444211b5f41879]::slice::iter::Iter<rustc_middle[8414b965ec1e8931]::ty::Ty>> as core[aa444211b5f41879]::iter::traits::iterator::Iterator>::try_fold::<(), <core[aa444211b5f41879]::iter::adapters::enumerate::Enumerate<_> as core[aa444211b5f41879]::iter::traits::iterator::Iterator>::try_fold::enumerate<rustc_middle[8414b965ec1e8931]::ty::Ty, (), core[aa444211b5f41879]::ops::control_flow::ControlFlow<(usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>)>, core[aa444211b5f41879]::iter::traits::iterator::Iterator::find_map::check<(usize, rustc_middle[8414b965ec1e8931]::ty::Ty), (usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>), rustc_middle[8414b965ec1e8931]::ty::util::fold_list<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder, rustc_middle[8414b965ec1e8931]::ty::Ty, <&rustc_middle[8414b965ec1e8931]::ty::list::List<rustc_middle[8414b965ec1e8931]::ty::Ty> as rustc_type_ir[929cb0070a7abace]::fold::TypeFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_fold_with<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder>::{closure#0}>::{closure#0}>::{closure#0}>::{closure#0}, core[aa444211b5f41879]::ops::control_flow::ControlFlow<(usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>)>> at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/traits/iterator.rs:4198:9 33: 0x7f7cbdc9acbc - <core[aa444211b5f41879]::iter::adapters::enumerate::Enumerate<&mut core[aa444211b5f41879]::iter::adapters::copied::Copied<core[aa444211b5f41879]::slice::iter::Iter<rustc_middle[8414b965ec1e8931]::ty::Ty>>> as core[aa444211b5f41879]::iter::traits::iterator::Iterator>::try_fold::<(), core[aa444211b5f41879]::iter::traits::iterator::Iterator::find_map::check<(usize, rustc_middle[8414b965ec1e8931]::ty::Ty), (usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>), rustc_middle[8414b965ec1e8931]::ty::util::fold_list<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder, rustc_middle[8414b965ec1e8931]::ty::Ty, <&rustc_middle[8414b965ec1e8931]::ty::list::List<rustc_middle[8414b965ec1e8931]::ty::Ty> as rustc_type_ir[929cb0070a7abace]::fold::TypeFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_fold_with<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder>::{closure#0}>::{closure#0}>::{closure#0}, core[aa444211b5f41879]::ops::control_flow::ControlFlow<(usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>)>> at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/adapters/enumerate.rs:92:9 34: 0x7f7cbdc9acbc - <core[aa444211b5f41879]::iter::adapters::enumerate::Enumerate<&mut core[aa444211b5f41879]::iter::adapters::copied::Copied<core[aa444211b5f41879]::slice::iter::Iter<rustc_middle[8414b965ec1e8931]::ty::Ty>>> as core[aa444211b5f41879]::iter::traits::iterator::Iterator>::find_map::<(usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>), rustc_middle[8414b965ec1e8931]::ty::util::fold_list<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder, rustc_middle[8414b965ec1e8931]::ty::Ty, <&rustc_middle[8414b965ec1e8931]::ty::list::List<rustc_middle[8414b965ec1e8931]::ty::Ty> as rustc_type_ir[929cb0070a7abace]::fold::TypeFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_fold_with<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder>::{closure#0}>::{closure#0}> at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/traits/iterator.rs:2964:9 35: 0x7f7cbdc9acbc - rustc_middle[8414b965ec1e8931]::ty::util::fold_list::<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder, rustc_middle[8414b965ec1e8931]::ty::Ty, <&rustc_middle[8414b965ec1e8931]::ty::list::List<rustc_middle[8414b965ec1e8931]::ty::Ty> as rustc_type_ir[929cb0070a7abace]::fold::TypeFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_fold_with<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder>::{closure#0}> at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/util.rs:1494:11 36: 0x7f7cbdc9acbc - <&rustc_middle[8414b965ec1e8931]::ty::list::List<rustc_middle[8414b965ec1e8931]::ty::Ty> as rustc_type_ir[929cb0070a7abace]::fold::TypeFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_fold_with::<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder> at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/generic_args.rs:551:18 37: 0x7f7cbdd7a99e - <rustc_middle[8414b965ec1e8931]::ty::Ty as rustc_type_ir[929cb0070a7abace]::fold::TypeSuperFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_super_fold_with::<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder> at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/structural_impls.rs:576:40 38: 0x7f7cbdca12a0 - <rustc_middle[8414b965ec1e8931]::ty::Ty as rustc_type_ir[929cb0070a7abace]::fold::TypeSuperFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::super_fold_with::<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder> at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_type_ir/src/fold.rs:112:15 39: 0x7f7cbdca12a0 - <rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder as rustc_type_ir[929cb0070a7abace]::fold::TypeFolder<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::fold_ty at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/instance.rs:804:25 40: 0x7f7cbdc907af - <rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder as rustc_type_ir[929cb0070a7abace]::fold::FallibleTypeFolder<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_fold_ty at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_type_ir/src/fold.rs:241:12 41: 0x7f7cbdc907af - <rustc_middle[8414b965ec1e8931]::ty::Ty as rustc_type_ir[929cb0070a7abace]::fold::TypeFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_fold_with::<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder> at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/structural_impls.rs:551:9 42: 0x7f7cbdc907af - <rustc_middle[8414b965ec1e8931]::ty::Ty as rustc_type_ir[929cb0070a7abace]::fold::TypeFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::fold_with::<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder> at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_type_ir/src/fold.rs:88:15 43: 0x7f7cbdc907af - rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::{closure#1} at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/instance.rs:823:61 44: 0x7f7cbdc907af - <rustc_middle[8414b965ec1e8931]::ty::list::List<rustc_middle[8414b965ec1e8931]::ty::generic_args::GenericArg>>::fill_single::<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::{closure#1}> at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/generic_args.rs:374:24 45: 0x7f7cbdc907af - <rustc_middle[8414b965ec1e8931]::ty::list::List<rustc_middle[8414b965ec1e8931]::ty::generic_args::GenericArg>>::fill_item::<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::{closure#1}> at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/generic_args.rs:362:9 46: 0x7f7cbdca0ccd - <rustc_middle[8414b965ec1e8931]::ty::list::List<rustc_middle[8414b965ec1e8931]::ty::generic_args::GenericArg>>::for_item::<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::{closure#1}> at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/generic_args.rs:332:9 47: 0x7f7cbdca0ccd - rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/instance.rs:809:5 48: 0x7f7cbdca127e - <rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder as rustc_type_ir[929cb0070a7abace]::fold::TypeFolder<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::fold_ty at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/instance.rs:788:25 49: 0x7f7cbdc95ef0 - <rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder as rustc_type_ir[929cb0070a7abace]::fold::FallibleTypeFolder<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_fold_ty at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_type_ir/src/fold.rs:241:12 50: 0x7f7cbdc95ef0 - <rustc_middle[8414b965ec1e8931]::ty::Ty as rustc_type_ir[929cb0070a7abace]::fold::TypeFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_fold_with::<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder> at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/structural_impls.rs:551:9 51: 0x7f7cbdc95ef0 - <rustc_middle[8414b965ec1e8931]::ty::generic_args::GenericArg as rustc_type_ir[929cb0070a7abace]::fold::TypeFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_fold_with::<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder> at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/generic_args.rs:237:44 52: 0x7f7cbdc95ef0 - <&rustc_middle[8414b965ec1e8931]::ty::list::List<rustc_middle[8414b965ec1e8931]::ty::generic_args::GenericArg> as rustc_type_ir[929cb0070a7abace]::fold::TypeFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_fold_with::<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder> at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/generic_args.rs:503:30 53: 0x7f7cbdd7a7f5 - <rustc_middle[8414b965ec1e8931]::ty::Ty as rustc_type_ir[929cb0070a7abace]::fold::TypeSuperFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_super_fold_with::<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder> at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/structural_impls.rs:570:48 54: 0x7f7cbdca12a0 - <rustc_middle[8414b965ec1e8931]::ty::Ty as rustc_type_ir[929cb0070a7abace]::fold::TypeSuperFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::super_fold_with::<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder> at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_type_ir/src/fold.rs:112:15 55: 0x7f7cbdca12a0 - <rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder as rustc_type_ir[929cb0070a7abace]::fold::TypeFolder<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::fold_ty at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/instance.rs:804:25 56: 0x7f7cbdc9acbc - <rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder as rustc_type_ir[929cb0070a7abace]::fold::FallibleTypeFolder<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_fold_ty at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_type_ir/src/fold.rs:241:12 57: 0x7f7cbdc9acbc - <rustc_middle[8414b965ec1e8931]::ty::Ty as rustc_type_ir[929cb0070a7abace]::fold::TypeFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_fold_with::<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder> at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/structural_impls.rs:551:9 58: 0x7f7cbdc9acbc - rustc_middle[8414b965ec1e8931]::ty::util::fold_list::<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder, rustc_middle[8414b965ec1e8931]::ty::Ty, <&rustc_middle[8414b965ec1e8931]::ty::list::List<rustc_middle[8414b965ec1e8931]::ty::Ty> as rustc_type_ir[929cb0070a7abace]::fold::TypeFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_fold_with<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder>::{closure#0}>::{closure#0} at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/util.rs:1494:61 59: 0x7f7cbdc9acbc - core[aa444211b5f41879]::iter::traits::iterator::Iterator::find_map::check::<(usize, rustc_middle[8414b965ec1e8931]::ty::Ty), (usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>), rustc_middle[8414b965ec1e8931]::ty::util::fold_list<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder, rustc_middle[8414b965ec1e8931]::ty::Ty, <&rustc_middle[8414b965ec1e8931]::ty::list::List<rustc_middle[8414b965ec1e8931]::ty::Ty> as rustc_type_ir[929cb0070a7abace]::fold::TypeFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_fold_with<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder>::{closure#0}>::{closure#0}>::{closure#0} at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/traits/iterator.rs:2958:32 60: 0x7f7cbdc9acbc - <core[aa444211b5f41879]::iter::adapters::enumerate::Enumerate<_> as core[aa444211b5f41879]::iter::traits::iterator::Iterator>::try_fold::enumerate::<rustc_middle[8414b965ec1e8931]::ty::Ty, (), core[aa444211b5f41879]::ops::control_flow::ControlFlow<(usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>)>, core[aa444211b5f41879]::iter::traits::iterator::Iterator::find_map::check<(usize, rustc_middle[8414b965ec1e8931]::ty::Ty), (usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>), rustc_middle[8414b965ec1e8931]::ty::util::fold_list<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder, rustc_middle[8414b965ec1e8931]::ty::Ty, <&rustc_middle[8414b965ec1e8931]::ty::list::List<rustc_middle[8414b965ec1e8931]::ty::Ty> as rustc_type_ir[929cb0070a7abace]::fold::TypeFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_fold_with<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder>::{closure#0}>::{closure#0}>::{closure#0}>::{closure#0} at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/adapters/enumerate.rs:86:27 61: 0x7f7cbdc9acbc - core[aa444211b5f41879]::iter::adapters::copied::copy_try_fold::<rustc_middle[8414b965ec1e8931]::ty::Ty, (), core[aa444211b5f41879]::ops::control_flow::ControlFlow<(usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>)>, <core[aa444211b5f41879]::iter::adapters::enumerate::Enumerate<_> as core[aa444211b5f41879]::iter::traits::iterator::Iterator>::try_fold::enumerate<rustc_middle[8414b965ec1e8931]::ty::Ty, (), core[aa444211b5f41879]::ops::control_flow::ControlFlow<(usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>)>, core[aa444211b5f41879]::iter::traits::iterator::Iterator::find_map::check<(usize, rustc_middle[8414b965ec1e8931]::ty::Ty), (usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>), rustc_middle[8414b965ec1e8931]::ty::util::fold_list<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder, rustc_middle[8414b965ec1e8931]::ty::Ty, <&rustc_middle[8414b965ec1e8931]::ty::list::List<rustc_middle[8414b965ec1e8931]::ty::Ty> as rustc_type_ir[929cb0070a7abace]::fold::TypeFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_fold_with<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder>::{closure#0}>::{closure#0}>::{closure#0}>::{closure#0}>::{closure#0} at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/adapters/copied.rs:36:22 62: 0x7f7cbdc9acbc - <core[aa444211b5f41879]::slice::iter::Iter<rustc_middle[8414b965ec1e8931]::ty::Ty> as core[aa444211b5f41879]::iter::traits::iterator::Iterator>::try_fold::<(), core[aa444211b5f41879]::iter::adapters::copied::copy_try_fold<rustc_middle[8414b965ec1e8931]::ty::Ty, (), core[aa444211b5f41879]::ops::control_flow::ControlFlow<(usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>)>, <core[aa444211b5f41879]::iter::adapters::enumerate::Enumerate<_> as core[aa444211b5f41879]::iter::traits::iterator::Iterator>::try_fold::enumerate<rustc_middle[8414b965ec1e8931]::ty::Ty, (), core[aa444211b5f41879]::ops::control_flow::ControlFlow<(usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>)>, core[aa444211b5f41879]::iter::traits::iterator::Iterator::find_map::check<(usize, rustc_middle[8414b965ec1e8931]::ty::Ty), (usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>), rustc_middle[8414b965ec1e8931]::ty::util::fold_list<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder, rustc_middle[8414b965ec1e8931]::ty::Ty, <&rustc_middle[8414b965ec1e8931]::ty::list::List<rustc_middle[8414b965ec1e8931]::ty::Ty> as rustc_type_ir[929cb0070a7abace]::fold::TypeFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_fold_with<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder>::{closure#0}>::{closure#0}>::{closure#0}>::{closure#0}>::{closure#0}, core[aa444211b5f41879]::ops::control_flow::ControlFlow<(usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>)>> at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/traits/iterator.rs:2462:21 63: 0x7f7cbdc9acbc - <core[aa444211b5f41879]::iter::adapters::copied::Copied<core[aa444211b5f41879]::slice::iter::Iter<rustc_middle[8414b965ec1e8931]::ty::Ty>> as core[aa444211b5f41879]::iter::traits::iterator::Iterator>::try_fold::<(), <core[aa444211b5f41879]::iter::adapters::enumerate::Enumerate<_> as core[aa444211b5f41879]::iter::traits::iterator::Iterator>::try_fold::enumerate<rustc_middle[8414b965ec1e8931]::ty::Ty, (), core[aa444211b5f41879]::ops::control_flow::ControlFlow<(usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>)>, core[aa444211b5f41879]::iter::traits::iterator::Iterator::find_map::check<(usize, rustc_middle[8414b965ec1e8931]::ty::Ty), (usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>), rustc_middle[8414b965ec1e8931]::ty::util::fold_list<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder, rustc_middle[8414b965ec1e8931]::ty::Ty, <&rustc_middle[8414b965ec1e8931]::ty::list::List<rustc_middle[8414b965ec1e8931]::ty::Ty> as rustc_type_ir[929cb0070a7abace]::fold::TypeFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_fold_with<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder>::{closure#0}>::{closure#0}>::{closure#0}>::{closure#0}, core[aa444211b5f41879]::ops::control_flow::ControlFlow<(usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>)>> at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/adapters/copied.rs:70:9 64: 0x7f7cbdc9acbc - <&mut core[aa444211b5f41879]::iter::adapters::copied::Copied<core[aa444211b5f41879]::slice::iter::Iter<rustc_middle[8414b965ec1e8931]::ty::Ty>> as core[aa444211b5f41879]::iter::traits::iterator::IteratorRefSpec>::spec_try_fold::<(), <core[aa444211b5f41879]::iter::adapters::enumerate::Enumerate<_> as core[aa444211b5f41879]::iter::traits::iterator::Iterator>::try_fold::enumerate<rustc_middle[8414b965ec1e8931]::ty::Ty, (), core[aa444211b5f41879]::ops::control_flow::ControlFlow<(usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>)>, core[aa444211b5f41879]::iter::traits::iterator::Iterator::find_map::check<(usize, rustc_middle[8414b965ec1e8931]::ty::Ty), (usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>), rustc_middle[8414b965ec1e8931]::ty::util::fold_list<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder, rustc_middle[8414b965ec1e8931]::ty::Ty, <&rustc_middle[8414b965ec1e8931]::ty::list::List<rustc_middle[8414b965ec1e8931]::ty::Ty> as rustc_type_ir[929cb0070a7abace]::fold::TypeFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_fold_with<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder>::{closure#0}>::{closure#0}>::{closure#0}>::{closure#0}, core[aa444211b5f41879]::ops::control_flow::ControlFlow<(usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>)>> at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/traits/iterator.rs:4247:9 65: 0x7f7cbdc9acbc - <&mut core[aa444211b5f41879]::iter::adapters::copied::Copied<core[aa444211b5f41879]::slice::iter::Iter<rustc_middle[8414b965ec1e8931]::ty::Ty>> as core[aa444211b5f41879]::iter::traits::iterator::Iterator>::try_fold::<(), <core[aa444211b5f41879]::iter::adapters::enumerate::Enumerate<_> as core[aa444211b5f41879]::iter::traits::iterator::Iterator>::try_fold::enumerate<rustc_middle[8414b965ec1e8931]::ty::Ty, (), core[aa444211b5f41879]::ops::control_flow::ControlFlow<(usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>)>, core[aa444211b5f41879]::iter::traits::iterator::Iterator::find_map::check<(usize, rustc_middle[8414b965ec1e8931]::ty::Ty), (usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>), rustc_middle[8414b965ec1e8931]::ty::util::fold_list<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder, rustc_middle[8414b965ec1e8931]::ty::Ty, <&rustc_middle[8414b965ec1e8931]::ty::list::List<rustc_middle[8414b965ec1e8931]::ty::Ty> as rustc_type_ir[929cb0070a7abace]::fold::TypeFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_fold_with<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder>::{closure#0}>::{closure#0}>::{closure#0}>::{closure#0}, core[aa444211b5f41879]::ops::control_flow::ControlFlow<(usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>)>> at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/traits/iterator.rs:4198:9 66: 0x7f7cbdc9acbc - <core[aa444211b5f41879]::iter::adapters::enumerate::Enumerate<&mut core[aa444211b5f41879]::iter::adapters::copied::Copied<core[aa444211b5f41879]::slice::iter::Iter<rustc_middle[8414b965ec1e8931]::ty::Ty>>> as core[aa444211b5f41879]::iter::traits::iterator::Iterator>::try_fold::<(), core[aa444211b5f41879]::iter::traits::iterator::Iterator::find_map::check<(usize, rustc_middle[8414b965ec1e8931]::ty::Ty), (usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>), rustc_middle[8414b965ec1e8931]::ty::util::fold_list<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder, rustc_middle[8414b965ec1e8931]::ty::Ty, <&rustc_middle[8414b965ec1e8931]::ty::list::List<rustc_middle[8414b965ec1e8931]::ty::Ty> as rustc_type_ir[929cb0070a7abace]::fold::TypeFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_fold_with<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder>::{closure#0}>::{closure#0}>::{closure#0}, core[aa444211b5f41879]::ops::control_flow::ControlFlow<(usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>)>> at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/adapters/enumerate.rs:92:9 67: 0x7f7cbdc9acbc - <core[aa444211b5f41879]::iter::adapters::enumerate::Enumerate<&mut core[aa444211b5f41879]::iter::adapters::copied::Copied<core[aa444211b5f41879]::slice::iter::Iter<rustc_middle[8414b965ec1e8931]::ty::Ty>>> as core[aa444211b5f41879]::iter::traits::iterator::Iterator>::find_map::<(usize, core[aa444211b5f41879]::result::Result<rustc_middle[8414b965ec1e8931]::ty::Ty, !>), rustc_middle[8414b965ec1e8931]::ty::util::fold_list<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder, rustc_middle[8414b965ec1e8931]::ty::Ty, <&rustc_middle[8414b965ec1e8931]::ty::list::List<rustc_middle[8414b965ec1e8931]::ty::Ty> as rustc_type_ir[929cb0070a7abace]::fold::TypeFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_fold_with<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder>::{closure#0}>::{closure#0}> at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/traits/iterator.rs:2964:9 68: 0x7f7cbdc9acbc - rustc_middle[8414b965ec1e8931]::ty::util::fold_list::<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder, rustc_middle[8414b965ec1e8931]::ty::Ty, <&rustc_middle[8414b965ec1e8931]::ty::list::List<rustc_middle[8414b965ec1e8931]::ty::Ty> as rustc_type_ir[929cb0070a7abace]::fold::TypeFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_fold_with<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder>::{closure#0}> at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/util.rs:1494:11 69: 0x7f7cbdc9acbc - <&rustc_middle[8414b965ec1e8931]::ty::list::List<rustc_middle[8414b965ec1e8931]::ty::Ty> as rustc_type_ir[929cb0070a7abace]::fold::TypeFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_fold_with::<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder> at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/generic_args.rs:551:18 70: 0x7f7cbdd7a99e - <rustc_middle[8414b965ec1e8931]::ty::Ty as rustc_type_ir[929cb0070a7abace]::fold::TypeSuperFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_super_fold_with::<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder> at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/structural_impls.rs:576:40 71: 0x7f7cbdca12a0 - <rustc_middle[8414b965ec1e8931]::ty::Ty as rustc_type_ir[929cb0070a7abace]::fold::TypeSuperFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::super_fold_with::<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder> at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_type_ir/src/fold.rs:112:15 72: 0x7f7cbdca12a0 - <rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder as rustc_type_ir[929cb0070a7abace]::fold::TypeFolder<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::fold_ty at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/instance.rs:804:25 73: 0x7f7cbdc907af - <rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder as rustc_type_ir[929cb0070a7abace]::fold::FallibleTypeFolder<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_fold_ty at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_type_ir/src/fold.rs:241:12 74: 0x7f7cbdc907af - <rustc_middle[8414b965ec1e8931]::ty::Ty as rustc_type_ir[929cb0070a7abace]::fold::TypeFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::try_fold_with::<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder> at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/structural_impls.rs:551:9 75: 0x7f7cbdc907af - <rustc_middle[8414b965ec1e8931]::ty::Ty as rustc_type_ir[929cb0070a7abace]::fold::TypeFoldable<rustc_middle[8414b965ec1e8931]::ty::context::TyCtxt>>::fold_with::<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::PolymorphizationFolder> at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_type_ir/src/fold.rs:88:15 76: 0x7f7cbdc907af - rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::{closure#1} at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/instance.rs:823:61 77: 0x7f7cbdc907af - <rustc_middle[8414b965ec1e8931]::ty::list::List<rustc_middle[8414b965ec1e8931]::ty::generic_args::GenericArg>>::fill_single::<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::{closure#1}> at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/generic_args.rs:374:24 78: 0x7f7cbdc907af - <rustc_middle[8414b965ec1e8931]::ty::list::List<rustc_middle[8414b965ec1e8931]::ty::generic_args::GenericArg>>::fill_item::<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::{closure#1}> at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/generic_args.rs:362:9 79: 0x7f7cbdca0ccd - <rustc_middle[8414b965ec1e8931]::ty::list::List<rustc_middle[8414b965ec1e8931]::ty::generic_args::GenericArg>>::for_item::<rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize::{closure#1}> at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/generic_args.rs:332:9 80: 0x7f7cbdca0ccd - rustc_middle[8414b965ec1e8931]::ty::instance::polymorphize at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/instance.rs:809:5 81: 0x7f7cbdca00d1 - <rustc_middle[8414b965ec1e8931]::ty::instance::Instance>::polymorphize at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/ty/instance.rs:746:34 82: 0x7f7cbe383363 - rustc_monomorphize[e9a13ccb3a3d72c]::collector::should_codegen_locally at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_monomorphize/src/collector.rs:1015:12 83: 0x7f7cbe382ece - rustc_monomorphize[e9a13ccb3a3d72c]::collector::visit_instance_use at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_monomorphize/src/collector.rs:948:9 84: 0x7f7cbe38200f - rustc_monomorphize[e9a13ccb3a3d72c]::collector::visit_fn_use at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_monomorphize/src/collector.rs:936:9 85: 0x7f7cbe38200f - <rustc_monomorphize[e9a13ccb3a3d72c]::collector::MirUsedCollector as rustc_middle[8414b965ec1e8931]::mir::visit::Visitor>::visit_terminator at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_monomorphize/src/collector.rs:845:17 86: 0x7f7cbe38bdb4 - <rustc_monomorphize[e9a13ccb3a3d72c]::collector::MirUsedCollector as rustc_middle[8414b965ec1e8931]::mir::visit::Visitor>::super_basic_block_data at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/mir/visit.rs:313:21 87: 0x7f7cbe38bdb4 - <rustc_monomorphize[e9a13ccb3a3d72c]::collector::MirUsedCollector as rustc_middle[8414b965ec1e8931]::mir::visit::Visitor>::visit_basic_block_data at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/mir/visit.rs:88:17 88: 0x7f7cbe38bdb4 - <rustc_monomorphize[e9a13ccb3a3d72c]::collector::MirUsedCollector as rustc_middle[8414b965ec1e8931]::mir::visit::Visitor>::super_body at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/mir/visit.rs:292:17 89: 0x7f7cbe38bdb4 - <rustc_monomorphize[e9a13ccb3a3d72c]::collector::MirUsedCollector as rustc_middle[8414b965ec1e8931]::mir::visit::Visitor>::visit_body at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_middle/src/mir/visit.rs:1216:1 90: 0x7f7cbe38bdb4 - rustc_monomorphize[e9a13ccb3a3d72c]::collector::collect_used_items at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_monomorphize/src/collector.rs:1489:6 91: 0x7f7cbe388b54 - rustc_monomorphize[e9a13ccb3a3d72c]::collector::collect_items_rec::{closure#0} at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_monomorphize/src/collector.rs:419:17 92: 0x7f7cbe388b54 - stacker[bd635a8d74548ce]::maybe_grow::<(), rustc_monomorphize[e9a13ccb3a3d72c]::collector::collect_items_rec::{closure#0}> at /home/matthias/.cargo/registry/src/index.crates.io-6f17d22bba15001f/stacker-0.1.15/src/lib.rs:55:9 93: 0x7f7cbe388b54 - rustc_data_structures[e95f3e36f9618881]::stack::ensure_sufficient_stack::<(), rustc_monomorphize[e9a13ccb3a3d72c]::collector::collect_items_rec::{closure#0}> at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_data_structures/src/stack.rs:17:5 94: 0x7f7cbe388b54 - rustc_monomorphize[e9a13ccb3a3d72c]::collector::collect_items_rec at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_monomorphize/src/collector.rs:418:13 95: 0x7f7cbe38916f - rustc_monomorphize[e9a13ccb3a3d72c]::collector::collect_items_rec at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_monomorphize/src/collector.rs:475:9 96: 0x7f7cbe38916f - rustc_monomorphize[e9a13ccb3a3d72c]::collector::collect_items_rec at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_monomorphize/src/collector.rs:475:9 97: 0x7f7cbe38916f - rustc_monomorphize[e9a13ccb3a3d72c]::collector::collect_items_rec at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_monomorphize/src/collector.rs:475:9 98: 0x7f7cbe38916f - rustc_monomorphize[e9a13ccb3a3d72c]::collector::collect_items_rec at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_monomorphize/src/collector.rs:475:9 99: 0x7f7cbe3f33f9 - rustc_monomorphize[e9a13ccb3a3d72c]::collector::collect_crate_mono_items::{closure#1}::{closure#0} at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_monomorphize/src/collector.rs:279:17 100: 0x7f7cbe3f33f9 - rustc_data_structures[e95f3e36f9618881]::sync::parallel::enabled::par_for_each_in::<rustc_middle[8414b965ec1e8931]::mir::mono::MonoItem, alloc[3b5cf733b6b27210]::vec::Vec<rustc_middle[8414b965ec1e8931]::mir::mono::MonoItem>, rustc_monomorphize[e9a13ccb3a3d72c]::collector::collect_crate_mono_items::{closure#1}::{closure#0}>::{closure#0}::{closure#0}::{closure#0} at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_data_structures/src/sync/parallel.rs:182:34 101: 0x7f7cbe3f33f9 - <core[aa444211b5f41879]::panic::unwind_safe::AssertUnwindSafe<rustc_data_structures[e95f3e36f9618881]::sync::parallel::enabled::par_for_each_in<rustc_middle[8414b965ec1e8931]::mir::mono::MonoItem, alloc[3b5cf733b6b27210]::vec::Vec<rustc_middle[8414b965ec1e8931]::mir::mono::MonoItem>, rustc_monomorphize[e9a13ccb3a3d72c]::collector::collect_crate_mono_items::{closure#1}::{closure#0}>::{closure#0}::{closure#0}::{closure#0}> as core[aa444211b5f41879]::ops::function::FnOnce<()>>::call_once at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/panic/unwind_safe.rs:272:9 102: 0x7f7cbe3f33f9 - std[1ba472e493b6ecda]::panicking::try::do_call::<core[aa444211b5f41879]::panic::unwind_safe::AssertUnwindSafe<rustc_data_structures[e95f3e36f9618881]::sync::parallel::enabled::par_for_each_in<rustc_middle[8414b965ec1e8931]::mir::mono::MonoItem, alloc[3b5cf733b6b27210]::vec::Vec<rustc_middle[8414b965ec1e8931]::mir::mono::MonoItem>, rustc_monomorphize[e9a13ccb3a3d72c]::collector::collect_crate_mono_items::{closure#1}::{closure#0}>::{closure#0}::{closure#0}::{closure#0}>, ()> at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:554:40 103: 0x7f7cbe3f33f9 - std[1ba472e493b6ecda]::panicking::try::<(), core[aa444211b5f41879]::panic::unwind_safe::AssertUnwindSafe<rustc_data_structures[e95f3e36f9618881]::sync::parallel::enabled::par_for_each_in<rustc_middle[8414b965ec1e8931]::mir::mono::MonoItem, alloc[3b5cf733b6b27210]::vec::Vec<rustc_middle[8414b965ec1e8931]::mir::mono::MonoItem>, rustc_monomorphize[e9a13ccb3a3d72c]::collector::collect_crate_mono_items::{closure#1}::{closure#0}>::{closure#0}::{closure#0}::{closure#0}>> at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panicking.rs:518:19 104: 0x7f7cbe3ebbe7 - std[1ba472e493b6ecda]::panic::catch_unwind::<core[aa444211b5f41879]::panic::unwind_safe::AssertUnwindSafe<rustc_data_structures[e95f3e36f9618881]::sync::parallel::enabled::par_for_each_in<rustc_middle[8414b965ec1e8931]::mir::mono::MonoItem, alloc[3b5cf733b6b27210]::vec::Vec<rustc_middle[8414b965ec1e8931]::mir::mono::MonoItem>, rustc_monomorphize[e9a13ccb3a3d72c]::collector::collect_crate_mono_items::{closure#1}::{closure#0}>::{closure#0}::{closure#1}::{closure#0}>, ()> at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/panic.rs:142:14 105: 0x7f7cbe3ebbe7 - <rustc_data_structures[e95f3e36f9618881]::sync::parallel::ParallelGuard>::run::<(), rustc_data_structures[e95f3e36f9618881]::sync::parallel::enabled::par_for_each_in<rustc_middle[8414b965ec1e8931]::mir::mono::MonoItem, alloc[3b5cf733b6b27210]::vec::Vec<rustc_middle[8414b965ec1e8931]::mir::mono::MonoItem>, rustc_monomorphize[e9a13ccb3a3d72c]::collector::collect_crate_mono_items::{closure#1}::{closure#0}>::{closure#0}::{closure#1}::{closure#0}> at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_data_structures/src/sync/parallel.rs:28:9 106: 0x7f7cbe3fa684 - rustc_data_structures[e95f3e36f9618881]::sync::parallel::enabled::par_for_each_in::<rustc_middle[8414b965ec1e8931]::mir::mono::MonoItem, alloc[3b5cf733b6b27210]::vec::Vec<rustc_middle[8414b965ec1e8931]::mir::mono::MonoItem>, rustc_monomorphize[e9a13ccb3a3d72c]::collector::collect_crate_mono_items::{closure#1}::{closure#0}>::{closure#0}::{closure#1} at /home/matthias/vcs/github/rust_debug_assertions/compiler/rustc_data_structures/src/sync/parallel.rs:186:21 107: 0x7f7cbe3fa684 - core[aa444211b5f41879]::iter::traits::iterator::Iterator::for_each::call::<rustc_middle[8414b965ec1e8931]::mir::mono::MonoItem, rustc_data_structures[e95f3e36f9618881]::sync::parallel::enabled::par_for_each_in<rustc_middle[8414b965ec1e8931]::mir::mono::MonoItem, alloc[3b5cf733b6b27210]::vec::Vec<rustc_middle[8414b965ec1e8931]::mir::mono::MonoItem>, rustc_monomorphize[e9a13ccb3a3d72c]::collector::collect_crate_mono_items::{closure#1}::{closure#0}>::{closure#0}::{closure#1}>::{closure#0} at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/traits/iterator.rs:855:29 108: 0x7f7cbe3fa684 - <alloc[3b5cf733b6b27210]::vec::into_iter::IntoIter<rustc_middle[8414b965ec1e8931]::mir::mono::MonoItem> as core[aa444211b5f41879]::iter::traits::iterator::Iterator>::fold::<(), core[aa444211b5f41879]::iter::traits::iterator::Iterator::for_each::call<rustc_middle[8414b965ec1e8931]::mir::mono::MonoItem, rustc_data_structures[e95f3e36f9618881]::sync::parallel::enabled::par_for_each_in<rustc_middle[8414b965ec1e8931]::mir::mono::MonoItem, alloc[3b5cf733b6b27210]::vec::Vec<rustc_middle[8414b965ec1e8931]::mir::mono::MonoItem>, rustc_monomorphize[e9a13ccb3a3d72c]::collector::collect_crate_mono_items::{closure#1}::{closure#0}>::{closure#0}::{closure#1}>::{closure#0}> at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/traits/iterator.rs:2640:21 109: 0x7f7cbe3fa684 - <alloc[3b5cf733b6b27210]::vec::into_iter::IntoIter<rustc_middle[8414b965ec1e8931]::mir::mono::MonoItem> as core[aa444211b5f41879]::iter::traits::iterator::Iterator>::for_each::<rustc_data_structures[e95f3e36f9618881]::sync::parallel::enabled::par_for_each_in<rustc_middle[8414b965ec1e8931]::mir::mono::MonoItem, alloc[3b5cf733b6b27210]::vec::Vec<rustc_middle[8414b965ec1e8931]::mir::mono::MonoItem>, rustc_monomorphize[e9a13ccb3a3d72c]::collector::collect_crate_mono_items::{closure#1}::{closure#0}>::{closure#0}::{closure#1}> at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/iter/traits/iterator.rs:858:9 <snip> 205: 0x7f7cbcacb2d3 - <std[1ba472e493b6ecda]::thread::Builder>::spawn_unchecked_::<rustc_interface[8306b4673bc9e9fb]::util::run_in_thread_with_globals<rustc_interface[8306b4673bc9e9fb]::util::run_in_thread_pool_with_globals<rustc_interface[8306b4673bc9e9fb]::interface::run_compiler<core[aa444211b5f41879]::result::Result<(), rustc_span[9066a7c1991c4c44]::ErrorGuaranteed>, rustc_driver_impl[8889ac64fe77a2fe]::run_compiler::{closure#0}>::{closure#0}, core[aa444211b5f41879]::result::Result<(), rustc_span[9066a7c1991c4c44]::ErrorGuaranteed>>::{closure#0}, core[aa444211b5f41879]::result::Result<(), rustc_span[9066a7c1991c4c44]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[aa444211b5f41879]::result::Result<(), rustc_span[9066a7c1991c4c44]::ErrorGuaranteed>>::{closure#1} at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/thread/mod.rs:528:30 206: 0x7f7cbcacb2d3 - <<std[1ba472e493b6ecda]::thread::Builder>::spawn_unchecked_<rustc_interface[8306b4673bc9e9fb]::util::run_in_thread_with_globals<rustc_interface[8306b4673bc9e9fb]::util::run_in_thread_pool_with_globals<rustc_interface[8306b4673bc9e9fb]::interface::run_compiler<core[aa444211b5f41879]::result::Result<(), rustc_span[9066a7c1991c4c44]::ErrorGuaranteed>, rustc_driver_impl[8889ac64fe77a2fe]::run_compiler::{closure#0}>::{closure#0}, core[aa444211b5f41879]::result::Result<(), rustc_span[9066a7c1991c4c44]::ErrorGuaranteed>>::{closure#0}, core[aa444211b5f41879]::result::Result<(), rustc_span[9066a7c1991c4c44]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[aa444211b5f41879]::result::Result<(), rustc_span[9066a7c1991c4c44]::ErrorGuaranteed>>::{closure#1} as core[aa444211b5f41879]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} at /home/matthias/vcs/github/rust_debug_assertions/library/core/src/ops/function.rs:250:5 207: 0x7f7cb9f6d18c - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h81ab1a37af1954b1 at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/boxed.rs:2015:9 208: 0x7f7cb9f6d18c - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h5e05ea3bb7f99950 at /home/matthias/vcs/github/rust_debug_assertions/library/alloc/src/boxed.rs:2015:9 209: 0x7f7cb9f7f115 - std::sys::pal::unix::thread::Thread::new::thread_start::hfa99437ef0507a46 at /home/matthias/vcs/github/rust_debug_assertions/library/std/src/sys/pal/unix/thread.rs:108:17 210: 0x7f7cb9d1f9eb - <unknown> 211: 0x7f7cb9da37cc - <unknown> 212: 0x0 - <unknown> error: 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 1.78.0-dev running on x86_64-unknown-linux-gnu note: compiler flags: -Z print-mono-items=eager -Z polymorphize=on --crate-type lib -Z dump-mir-dir=dir query stack during panic: #0 [collect_and_partition_mono_items] collect_and_partition_mono_items #1 [exported_symbols] collecting exported symbols for crate `0` end of query stack warning: 1 warning emitted