thread 'rustc' panicked at 'assertion failed: !value.has_escaping_bound_vars()', compiler/rustc_middle/src/ty/sty.rs:971:9 stack backtrace: 0: rust_begin_unwind at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/std/src/panicking.rs:517:5 1: core::panicking::panic_fmt at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/core/src/panicking.rs:103:14 2: core::panicking::panic at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/core/src/panicking.rs:50:5 3: <rustc_middle::ty::ConstnessAnd<rustc_middle::ty::sty::TraitRef> as rustc_middle::ty::ToPredicate>::to_predicate 4: <rustc_infer::infer::InferCtxt as rustc_trait_selection::traits::error_reporting::suggestions::InferCtxtExt>::suggest_add_reference_to_arg::{{closure}} 5: <rustc_infer::infer::InferCtxt as rustc_trait_selection::traits::error_reporting::suggestions::InferCtxtExt>::suggest_add_reference_to_arg 6: <rustc_infer::infer::InferCtxt as rustc_trait_selection::traits::error_reporting::InferCtxtExt>::report_selection_error 7: <rustc_infer::infer::InferCtxt as rustc_trait_selection::traits::error_reporting::InferCtxtPrivExt>::report_fulfillment_error 8: <rustc_infer::infer::InferCtxt as rustc_trait_selection::traits::error_reporting::InferCtxtExt>::report_fulfillment_errors 9: rustc_typeck::check::fn_ctxt::checks::<impl rustc_typeck::check::fn_ctxt::FnCtxt>::check_argument_types 10: rustc_typeck::check::callee::<impl rustc_typeck::check::fn_ctxt::FnCtxt>::confirm_builtin_call 11: rustc_typeck::check::callee::<impl rustc_typeck::check::fn_ctxt::FnCtxt>::check_call 12: rustc_typeck::check::expr::<impl rustc_typeck::check::fn_ctxt::FnCtxt>::check_expr_kind 13: rustc_typeck::check::expr::<impl rustc_typeck::check::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args 14: rustc_typeck::check::expr::<impl rustc_typeck::check::fn_ctxt::FnCtxt>::check_expr_with_expectation 15: rustc_typeck::check::fn_ctxt::checks::<impl rustc_typeck::check::fn_ctxt::FnCtxt>::check_stmt 16: rustc_typeck::check::fn_ctxt::checks::<impl rustc_typeck::check::fn_ctxt::FnCtxt>::check_block_with_expected 17: rustc_typeck::check::expr::<impl rustc_typeck::check::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args 18: rustc_typeck::check::expr::<impl rustc_typeck::check::fn_ctxt::FnCtxt>::check_expr_with_expectation 19: rustc_typeck::check::expr::<impl rustc_typeck::check::fn_ctxt::FnCtxt>::check_return_expr 20: rustc_typeck::check::check::check_fn 21: rustc_infer::infer::InferCtxtBuilder::enter 22: rustc_typeck::check::typeck 23: rustc_query_system::dep_graph::graph::DepGraph<K>::with_task 24: rustc_data_structures::stack::ensure_sufficient_stack 25: rustc_query_system::query::plumbing::try_execute_query 26: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::typeck 27: rustc_typeck::check::typeck 28: rustc_query_system::dep_graph::graph::DepGraph<K>::with_task 29: rustc_data_structures::stack::ensure_sufficient_stack 30: rustc_query_system::query::plumbing::try_execute_query 31: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::typeck 32: rustc_middle::ty::<impl rustc_middle::ty::context::TyCtxt>::par_body_owners 33: rustc_typeck::check::typeck_item_bodies 34: rustc_query_system::dep_graph::graph::DepGraph<K>::with_task 35: rustc_data_structures::stack::ensure_sufficient_stack 36: rustc_query_system::query::plumbing::try_execute_query 37: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::typeck_item_bodies 38: rustc_session::utils::<impl rustc_session::session::Session>::time 39: rustc_typeck::check_crate 40: rustc_interface::passes::analysis 41: rustc_query_system::dep_graph::graph::DepGraph<K>::with_task 42: rustc_data_structures::stack::ensure_sufficient_stack 43: rustc_query_system::query::plumbing::try_execute_query 44: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::analysis 45: rustc_interface::passes::QueryContext::enter 46: rustc_interface::queries::<impl rustc_interface::interface::Compiler>::enter 47: rustc_span::with_source_map 48: scoped_tls::ScopedKey<T>::set note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace. 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 1.57.0-nightly (5ecc8ad84 2021-09-19) running on x86_64-unknown-linux-gnu note: compiler flags: -C embed-bitcode=no -C debuginfo=2 -C incremental --crate-type bin note: some of the compiler flags provided by cargo are hidden query stack during panic: #0 [typeck] type-checking `main` #1 [typeck] type-checking `main::{closure#0}` #2 [typeck_item_bodies] type-checking all item bodies #3 [analysis] running analysis passes on this crate end of query stack error: internal compiler error: trimmed_def_paths constructed | = note: delayed at 0: rustc_errors::Handler::delay_good_path_bug 1: rustc_middle::ty::print::pretty::trimmed_def_paths 2: rustc_middle::dep_graph::<impl rustc_query_system::dep_graph::DepKind for rustc_middle::dep_graph::dep_node::DepKind>::with_deps 3: rustc_query_system::dep_graph::graph::DepGraph<K>::with_task 4: rustc_data_structures::stack::ensure_sufficient_stack 5: rustc_query_system::query::plumbing::try_execute_query 6: rustc_query_system::query::plumbing::get_query 7: <rustc_middle::ty::print::pretty::FmtPrinter<F> as rustc_middle::ty::print::Printer>::print_def_path 8: <rustc_middle::ty::print::pretty::FmtPrinter<F> as rustc_middle::ty::print::Printer>::print_def_path 9: rustc_middle::ty::print::pretty::<impl rustc_middle::ty::print::Print<P> for rustc_middle::ty::TraitPredicate>::print 10: rustc_middle::ty::print::pretty::<impl rustc_middle::ty::print::Print<P> for rustc_middle::ty::PredicateKind>::print 11: <rustc_middle::ty::print::pretty::FmtPrinter<F> as rustc_middle::ty::print::pretty::PrettyPrinter>::in_binder 12: rustc_middle::ty::print::pretty::<impl core::fmt::Display for rustc_middle::ty::Predicate>::fmt 13: core::fmt::write at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/core/src/fmt/mod.rs:1126:17 14: core::fmt::Write::write_fmt at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/core/src/fmt/mod.rs:186:9 15: alloc::fmt::format at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/alloc/src/fmt.rs:583:5 16: <rustc_infer::infer::InferCtxt as rustc_trait_selection::traits::error_reporting::InferCtxtExt>::report_selection_error 17: <rustc_infer::infer::InferCtxt as rustc_trait_selection::traits::error_reporting::InferCtxtPrivExt>::report_fulfillment_error 18: <rustc_infer::infer::InferCtxt as rustc_trait_selection::traits::error_reporting::InferCtxtExt>::report_fulfillment_errors 19: rustc_typeck::check::fn_ctxt::checks::<impl rustc_typeck::check::fn_ctxt::FnCtxt>::check_argument_types 20: rustc_typeck::check::callee::<impl rustc_typeck::check::fn_ctxt::FnCtxt>::confirm_builtin_call 21: rustc_typeck::check::callee::<impl rustc_typeck::check::fn_ctxt::FnCtxt>::check_call 22: rustc_typeck::check::expr::<impl rustc_typeck::check::fn_ctxt::FnCtxt>::check_expr_kind 23: rustc_typeck::check::expr::<impl rustc_typeck::check::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args 24: rustc_typeck::check::expr::<impl rustc_typeck::check::fn_ctxt::FnCtxt>::check_expr_with_expectation 25: rustc_typeck::check::fn_ctxt::checks::<impl rustc_typeck::check::fn_ctxt::FnCtxt>::check_stmt 26: rustc_typeck::check::fn_ctxt::checks::<impl rustc_typeck::check::fn_ctxt::FnCtxt>::check_block_with_expected 27: rustc_typeck::check::expr::<impl rustc_typeck::check::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args 28: rustc_typeck::check::expr::<impl rustc_typeck::check::fn_ctxt::FnCtxt>::check_expr_with_expectation 29: rustc_typeck::check::expr::<impl rustc_typeck::check::fn_ctxt::FnCtxt>::check_return_expr 30: rustc_typeck::check::check::check_fn 31: rustc_infer::infer::InferCtxtBuilder::enter 32: rustc_typeck::check::typeck 33: rustc_query_system::dep_graph::graph::DepGraph<K>::with_task 34: rustc_data_structures::stack::ensure_sufficient_stack 35: rustc_query_system::query::plumbing::try_execute_query 36: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::typeck 37: rustc_typeck::check::typeck 38: rustc_query_system::dep_graph::graph::DepGraph<K>::with_task 39: rustc_data_structures::stack::ensure_sufficient_stack 40: rustc_query_system::query::plumbing::try_execute_query 41: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::typeck 42: rustc_middle::ty::<impl rustc_middle::ty::context::TyCtxt>::par_body_owners 43: rustc_typeck::check::typeck_item_bodies 44: rustc_query_system::dep_graph::graph::DepGraph<K>::with_task 45: rustc_data_structures::stack::ensure_sufficient_stack 46: rustc_query_system::query::plumbing::try_execute_query 47: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::typeck_item_bodies 48: rustc_session::utils::<impl rustc_session::session::Session>::time 49: rustc_typeck::check_crate 50: rustc_interface::passes::analysis 51: rustc_query_system::dep_graph::graph::DepGraph<K>::with_task 52: rustc_data_structures::stack::ensure_sufficient_stack 53: rustc_query_system::query::plumbing::try_execute_query 54: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::analysis 55: rustc_interface::passes::QueryContext::enter 56: rustc_interface::queries::<impl rustc_interface::interface::Compiler>::enter 57: rustc_span::with_source_map 58: scoped_tls::ScopedKey<T>::set 59: std::sys_common::backtrace::__rust_begin_short_backtrace 60: core::ops::function::FnOnce::call_once{{vtable.shim}} 61: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/alloc/src/boxed.rs:1636:9 62: <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/alloc/src/boxed.rs:1636:9 63: std::sys::unix::thread::Thread::new::thread_start at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/std/src/sys/unix/thread.rs:106:17 64: start_thread at /build/glibc-eX1tMB/glibc-2.31/nptl/pthread_create.c:477:8 65: clone thread 'rustc' panicked at 'no warnings or errors encountered even though `delayed_good_path_bugs` issued', compiler/rustc_errors/src/lib.rs:1165:13 stack backtrace: 0: 0x7f917418b51c - std::backtrace_rs::backtrace::libunwind::trace::h2ab374bc2a3b7023 at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5 1: 0x7f917418b51c - std::backtrace_rs::backtrace::trace_unsynchronized::h128cb5178b04dc46 at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 2: 0x7f917418b51c - std::sys_common::backtrace::_print_fmt::h5344f9eefca2041f at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/std/src/sys_common/backtrace.rs:67:5 3: 0x7f917418b51c - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h213003bc5c7acf04 at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/std/src/sys_common/backtrace.rs:46:22 4: 0x7f91741e97dc - core::fmt::write::h78bf85fc3e93663f at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/core/src/fmt/mod.rs:1126:17 5: 0x7f917417c405 - std::io::Write::write_fmt::he619515c888f21a5 at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/std/src/io/mod.rs:1667:15 6: 0x7f917418ea80 - std::sys_common::backtrace::_print::hf706674f77848203 at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/std/src/sys_common/backtrace.rs:49:5 7: 0x7f917418ea80 - std::sys_common::backtrace::print::hf0b6c7a88804ec56 at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/std/src/sys_common/backtrace.rs:36:9 8: 0x7f917418ea80 - std::panicking::default_hook::{{closure}}::h2dde766cd83a333a at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/std/src/panicking.rs:210:50 9: 0x7f917418e637 - std::panicking::default_hook::h501e3b2e134eb149 at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/std/src/panicking.rs:227:9 10: 0x7f917496dd61 - rustc_driver::DEFAULT_HOOK::{{closure}}::{{closure}}::h130eb86a150311ba 11: 0x7f917418f299 - std::panicking::rust_panic_with_hook::hc09e869c4cf00885 at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/std/src/panicking.rs:628:17 12: 0x7f917418ed50 - std::panicking::begin_panic_handler::{{closure}}::hc2c6d70142458fc8 at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/std/src/panicking.rs:521:13 13: 0x7f917418b9c4 - std::sys_common::backtrace::__rust_end_short_backtrace::had58f7c459a1cd6e at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/std/src/sys_common/backtrace.rs:141:18 14: 0x7f917418ecb9 - rust_begin_unwind at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/std/src/panicking.rs:517:5 15: 0x7f9174154861 - core::panicking::panic_fmt::hf443e5eeb6cc9eab at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/core/src/panicking.rs:103:14 16: 0x7f9175a14b4c - core::panicking::panic_display::h5ba672e923a99f9b 17: 0x7f9176f63b06 - rustc_errors::HandlerInner::flush_delayed::hda43028f3d86869a 18: 0x7f9176f62431 - <rustc_errors::HandlerInner as core::ops::drop::Drop>::drop::h3a674f7627bd81be 19: 0x7f917652f398 - core::ptr::drop_in_place<rustc_session::parse::ParseSess>::h22aba6261238fc42 20: 0x7f917653122f - <alloc::rc::Rc<T> as core::ops::drop::Drop>::drop::h26b48b4a343c4b6d 21: 0x7f91765037cd - core::ptr::drop_in_place<rustc_interface::interface::Compiler>::h1db16aa1df7f112d 22: 0x7f91765034ac - rustc_span::with_source_map::h43cbd8428809207d 23: 0x7f9176515438 - scoped_tls::ScopedKey<T>::set::h3d900268035b2b22 24: 0x7f917650405a - std::sys_common::backtrace::__rust_begin_short_backtrace::hb43f082e4793abcc 25: 0x7f91765018c5 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hbb1067ee904c2726 26: 0x7f917419be33 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h59eef3b9c8a82350 at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/alloc/src/boxed.rs:1636:9 27: 0x7f917419be33 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hb5bbe017c347469c at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/alloc/src/boxed.rs:1636:9 28: 0x7f917419be33 - std::sys::unix::thread::Thread::new::thread_start::h62931528f61e35f5 at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/std/src/sys/unix/thread.rs:106:17 29: 0x7f91740ba609 - start_thread at /build/glibc-eX1tMB/glibc-2.31/nptl/pthread_create.c:477:8 30: 0x7f9173fce293 - clone 31: 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 1.57.0-nightly (5ecc8ad84 2021-09-19) running on x86_64-unknown-linux-gnu note: compiler flags: -C embed-bitcode=no -C debuginfo=2 -C incremental --crate-type bin note: some of the compiler flags provided by cargo are hidden query stack during panic: end of query stack thread panicked while panicking. aborting. error: could not compile `ice-lib-test` Caused by: process didn't exit successfully: `rustc --crate-name ice_lib_test --edition=2018 src/main.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 -C metadata=8123560056bfddf7 -C extra-filename=-8123560056bfddf7 --out-dir /home/myname/Documents/Programming/Rust/ice-lib-test/target/debug/deps -C incremental=/home/myname/Documents/Programming/Rust/ice-lib-test/target/debug/incremental -L dependency=/home/myname/Documents/Programming/Rust/ice-lib-test/target/debug/deps` (signal: 4, SIGILL: illegal instruction)