Closed
Description
Code
#![allow(indirect_structural_match)]
use std::borrow::Cow;
const FOO: &A = &A::Field(Cow::Borrowed("foo"));
#[derive(PartialEq, Eq)]
enum A {
Field(Cow<'static, str>)
}
fn main() {
let var = A::Field(Cow::Borrowed("bar"));
match &var {
FOO => todo!(),
_ => todo!()
}
}Meta
rustc --version --verbose:
rustc 1.57.0-nightly (aa8f2d432 2021-09-18)
binary: rustc
commit-hash: aa8f2d432b23575929a48f87b8746f41ba723318
commit-date: 2021-09-18
host: aarch64-apple-darwin
release: 1.57.0-nightly
LLVM version: 13.0.0
Error output
error: internal compiler error: trimmed_def_paths constructed
|
= note: delayed at 0: std::backtrace::Backtrace::create
1: rustc_errors::Handler::delay_good_path_bug
2: rustc_middle::ty::print::pretty::trimmed_def_paths
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::force_query_impl
7: rustc_query_impl::query_callbacks::trimmed_def_paths::force_from_dep_node
8: rustc_query_system::dep_graph::graph::DepGraph<K>::try_mark_previous_green
9: rustc_query_system::dep_graph::graph::DepGraph<K>::try_mark_green
10: rustc_query_system::query::plumbing::ensure_must_run
11: rustc_query_system::query::plumbing::get_query
12: rustc_middle::ty::<impl rustc_middle::ty::context::TyCtxt>::par_body_owners
13: rustc_session::utils::<impl rustc_session::session::Session>::time
14: rustc_interface::passes::analysis
15: rustc_query_system::dep_graph::graph::DepGraph<K>::with_task
16: rustc_data_structures::stack::ensure_sufficient_stack
17: rustc_query_system::query::plumbing::try_execute_query
18: rustc_query_system::query::plumbing::get_query
19: rustc_interface::passes::QueryContext::enter
20: rustc_interface::queries::<impl rustc_interface::interface::Compiler>::enter
21: rustc_span::with_source_map
22: scoped_tls::ScopedKey<T>::set
23: std::sys_common::backtrace::__rust_begin_short_backtrace
24: core::ops::function::FnOnce::call_once{{vtable.shim}}
25: std::sys::unix::thread::Thread::new::thread_start
26: _pthread_jit_write_protect_np
thread 'rustc' panicked at 'no warnings or errors encountered even though `delayed_good_path_bugs` issued', compiler/rustc_errors/src/lib.rs:1165:13
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 (e4828d5b7 2021-09-16) running on aarch64-apple-darwin
note: compiler flags: -C embed-bitcode=no -C split-debuginfo=unpacked -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
Backtrace
error: internal compiler error: trimmed_def_paths constructed
|
= note: delayed at 0: std::backtrace::Backtrace::create
1: rustc_errors::Handler::delay_good_path_bug
2: rustc_middle::ty::print::pretty::trimmed_def_paths
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::PrettyPrinter::pretty_print_type
10: rustc_middle::ty::print::pretty::<impl core::fmt::Display for &rustc_middle::ty::TyS>::fmt
11: core::fmt::write
12: alloc::fmt::format
13: rustc_mir_build::thir::pattern::const_to_pat::ConstToPat::recur
14: <core::iter::adapters::copied::Copied<I> as core::iter::traits::iterator::Iterator>::try_fold
15: <alloc::vec::Vec<T> as alloc::vec::spec_from_iter::SpecFromIter<T,I>>::from_iter
16: core::iter::adapters::process_results
17: rustc_mir_build::thir::pattern::const_to_pat::ConstToPat::recur
18: rustc_mir_build::thir::pattern::const_to_pat::ConstToPat::recur
19: rustc_mir_build::thir::pattern::const_to_pat::ConstToPat::to_pat
20: rustc_infer::infer::InferCtxtBuilder::enter
21: rustc_mir_build::thir::pattern::const_to_pat::<impl rustc_mir_build::thir::pattern::PatCtxt>::const_to_pat
22: rustc_mir_build::thir::pattern::PatCtxt::lower_path
23: rustc_mir_build::thir::pattern::PatCtxt::lower_pattern
24: rustc_mir_build::thir::pattern::check_match::MatchVisitor::lower_pattern
25: <core::iter::adapters::map::Map<I,F> as core::iter::traits::iterator::Iterator>::fold
26: <rustc_mir_build::thir::pattern::check_match::MatchVisitor as rustc_hir::intravisit::Visitor>::visit_expr
27: <rustc_mir_build::thir::pattern::check_match::MatchVisitor as rustc_hir::intravisit::Visitor>::visit_expr
28: rustc_mir_build::thir::pattern::check_match::check_match
29: rustc_query_system::dep_graph::graph::DepGraph<K>::with_task
30: rustc_data_structures::stack::ensure_sufficient_stack
31: rustc_query_system::query::plumbing::try_execute_query
32: rustc_query_system::query::plumbing::get_query
33: rustc_middle::ty::<impl rustc_middle::ty::context::TyCtxt>::par_body_owners
34: rustc_session::utils::<impl rustc_session::session::Session>::time
35: rustc_interface::passes::analysis
36: rustc_query_system::dep_graph::graph::DepGraph<K>::with_task
37: rustc_data_structures::stack::ensure_sufficient_stack
38: rustc_query_system::query::plumbing::try_execute_query
39: rustc_query_system::query::plumbing::get_query
40: rustc_interface::passes::QueryContext::enter
41: rustc_interface::queries::<impl rustc_interface::interface::Compiler>::enter
42: rustc_span::with_source_map
43: scoped_tls::ScopedKey<T>::set
44: std::sys_common::backtrace::__rust_begin_short_backtrace
45: core::ops::function::FnOnce::call_once{{vtable.shim}}
46: std::sys::unix::thread::Thread::new::thread_start
47: _pthread_jit_write_protect_np
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: _rust_begin_unwind
1: std::panicking::begin_panic_fmt
2: rustc_errors::HandlerInner::flush_delayed
3: <rustc_errors::HandlerInner as core::ops::drop::Drop>::drop
4: core::ptr::drop_in_place<rustc_session::parse::ParseSess>
5: <alloc::rc::Rc<T> as core::ops::drop::Drop>::drop
6: core::ptr::drop_in_place<rustc_interface::interface::Compiler>
7: rustc_span::with_source_map
8: 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 (e4828d5b7 2021-09-16) running on aarch64-apple-darwin
note: compiler flags: -C embed-bitcode=no -C split-debuginfo=unpacked -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