Closed
Description
Code
fn main() {
test(&|| 0);
}
fn test<T>(arg: &impl Fn() -> T) where for<'a> &'a T: Default {}When creating this I found that it did not error if the function was not called and it also seemed to require it to be a function not just an argument of type T or (from what I tested) a different impl Trait although it could be any Fn* trait
Playground Link
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rustc --version --verbose:
rustc 1.57.0-nightly (5ecc8ad84 2021-09-19)
binary: rustc
commit-hash: 5ecc8ad8462574354a55162a0c16b10eb95e3e70
commit-date: 2021-09-19
host: x86_64-unknown-linux-gnu
release: 1.57.0-nightly
LLVM version: 13.0.0
This appears to only happen on nightly while stable and beta generate useful error reports
Error output
thread 'rustc' panicked at 'assertion failed: !value.has_escaping_bound_vars()', compiler/rustc_middle/src/ty/sty.rs:971:9
note: run with `RUST_BACKTRACE=1` environment variable to display a 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 lib
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}`
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: 0x7fd264b8651c - std::backtrace_rs::backtrace::libunwind::trace::h2ab374bc2a3b7023
at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
1: 0x7fd264b8651c - std::backtrace_rs::backtrace::trace_unsynchronized::h128cb5178b04dc46
at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
2: 0x7fd264b8651c - std::sys_common::backtrace::_print_fmt::h5344f9eefca2041f
at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/std/src/sys_common/backtrace.rs:67:5
3: 0x7fd264b8651c - <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: 0x7fd264be47dc - core::fmt::write::h78bf85fc3e93663f
at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/core/src/fmt/mod.rs:1126:17
5: 0x7fd264b77405 - std::io::Write::write_fmt::he619515c888f21a5
at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/std/src/io/mod.rs:1667:15
6: 0x7fd264b89a80 - std::sys_common::backtrace::_print::hf706674f77848203
at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/std/src/sys_common/backtrace.rs:49:5
7: 0x7fd264b89a80 - std::sys_common::backtrace::print::hf0b6c7a88804ec56
at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/std/src/sys_common/backtrace.rs:36:9
8: 0x7fd264b89a80 - std::panicking::default_hook::{{closure}}::h2dde766cd83a333a
at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/std/src/panicking.rs:210:50
9: 0x7fd264b89637 - std::panicking::default_hook::h501e3b2e134eb149
at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/std/src/panicking.rs:227:9
10: 0x7fd265368d61 - rustc_driver::DEFAULT_HOOK::{{closure}}::{{closure}}::h130eb86a150311ba
11: 0x7fd264b8a299 - std::panicking::rust_panic_with_hook::hc09e869c4cf00885
at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/std/src/panicking.rs:628:17
12: 0x7fd264b89d50 - std::panicking::begin_panic_handler::{{closure}}::hc2c6d70142458fc8
at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/std/src/panicking.rs:521:13
13: 0x7fd264b869c4 - std::sys_common::backtrace::__rust_end_short_backtrace::had58f7c459a1cd6e
at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/std/src/sys_common/backtrace.rs:141:18
14: 0x7fd264b89cb9 - rust_begin_unwind
at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/std/src/panicking.rs:517:5
15: 0x7fd264b4f861 - core::panicking::panic_fmt::hf443e5eeb6cc9eab
at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/core/src/panicking.rs:103:14
16: 0x7fd26640fb4c - core::panicking::panic_display::h5ba672e923a99f9b
17: 0x7fd26795eb06 - rustc_errors::HandlerInner::flush_delayed::hda43028f3d86869a
18: 0x7fd26795d431 - <rustc_errors::HandlerInner as core::ops::drop::Drop>::drop::h3a674f7627bd81be
19: 0x7fd266f2a398 - core::ptr::drop_in_place<rustc_session::parse::ParseSess>::h22aba6261238fc42
20: 0x7fd266f2c22f - <alloc::rc::Rc<T> as core::ops::drop::Drop>::drop::h26b48b4a343c4b6d
21: 0x7fd266efe7cd - core::ptr::drop_in_place<rustc_interface::interface::Compiler>::h1db16aa1df7f112d
22: 0x7fd266efe4ac - rustc_span::with_source_map::h43cbd8428809207d
23: 0x7fd266f10438 - scoped_tls::ScopedKey<T>::set::h3d900268035b2b22
24: 0x7fd266eff05a - std::sys_common::backtrace::__rust_begin_short_backtrace::hb43f082e4793abcc
25: 0x7fd266efc8c5 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hbb1067ee904c2726
26: 0x7fd264b96e33 - <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: 0x7fd264b96e33 - <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: 0x7fd264b96e33 - std::sys::unix::thread::Thread::new::thread_start::h62931528f61e35f5
at /rustc/5ecc8ad8462574354a55162a0c16b10eb95e3e70/library/std/src/sys/unix/thread.rs:106:17
29: 0x7fd264ab5609 - start_thread
at /build/glibc-eX1tMB/glibc-2.31/nptl/pthread_create.c:477:8
30: 0x7fd2649c9293 - 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 lib
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/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 -C metadata=68eae1534bd49a91 -C extra-filename=-68eae1534bd49a91 --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)
Backtrace
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)