ice: unexpected unresolved segments

[matthiaskrgr]

Code

impl Error for str::Utf8Error {
    fn description(&self)  {}
}

Meta

rustc --version --verbose:

rustc 1.66.0-nightly (db0597f56 2022-10-11)
binary: rustc
commit-hash: db0597f5619d5ed93feca28e61226d3581cc7867
commit-date: 2022-10-11
host: x86_64-unknown-linux-gnu
release: 1.66.0-nightly
LLVM version: 15.0.2

Error output

<output>

Backtrace

stack backtrace:
   0:     0x7f75768385b0 - std::backtrace_rs::backtrace::libunwind::trace::h0bf6f02637fe6971
                               at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   1:     0x7f75768385b0 - std::backtrace_rs::backtrace::trace_unsynchronized::hca573de4ebdee142
                               at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7f75768385b0 - std::sys_common::backtrace::_print_fmt::h78a3b0f3fa5431ce
                               at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/std/src/sys_common/backtrace.rs:66:5
   3:     0x7f75768385b0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h388012888db78658
                               at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/std/src/sys_common/backtrace.rs:45:22
   4:     0x7f757689459e - core::fmt::write::h8541eee12bfb22e1
                               at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/core/src/fmt/mod.rs:1209:17
   5:     0x7f7576828835 - std::io::Write::write_fmt::haf5892ef07750179
                               at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/std/src/io/mod.rs:1680:15
   6:     0x7f757683b353 - std::sys_common::backtrace::_print::hd2a58ab324867b58
                               at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/std/src/sys_common/backtrace.rs:48:5
   7:     0x7f757683b353 - std::sys_common::backtrace::print::h62650e0a0854a421
                               at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/std/src/sys_common/backtrace.rs:35:9
   8:     0x7f757683b353 - std::panicking::default_hook::{{closure}}::h0c0249b3670af819
                               at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/std/src/panicking.rs:267:22
   9:     0x7f757683b02a - std::panicking::default_hook::hdd3bdd204a1e5f34
                               at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/std/src/panicking.rs:286:9
  10:     0x7f7579177641 - rustc_driver[1f63e0707e3aafaf]::DEFAULT_HOOK::{closure#0}::{closure#0}
  11:     0x7f757683bb8b - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h6f493fd9c4eb244a
                               at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/alloc/src/boxed.rs:1952:9
  12:     0x7f757683bb8b - std::panicking::rust_panic_with_hook::hcdeb5a66936a633b
                               at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/std/src/panicking.rs:673:13
  13:     0x7f757683b9e7 - std::panicking::begin_panic_handler::{{closure}}::h76d64f438650eafd
                               at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/std/src/panicking.rs:560:13
  14:     0x7f7576838a5c - std::sys_common::backtrace::__rust_end_short_backtrace::h6159ba2d4e07f4de
                               at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/std/src/sys_common/backtrace.rs:138:18
  15:     0x7f757683b702 - rust_begin_unwind
                               at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/std/src/panicking.rs:556:5
  16:     0x7f7576891173 - core::panicking::panic_fmt::h811742b56cf0125a
                               at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/core/src/panicking.rs:142:14
  17:     0x7f7576891031 - core::panicking::panic_display::h6303aa0d1e0b1fa9
                               at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/core/src/panicking.rs:72:5
  18:     0x7f7576890fdb - core::panicking::panic_str::hbb50b0306ce7b150
                               at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/core/src/panicking.rs:56:5
  19:     0x7f7576890d16 - core::option::expect_failed::h4c43dc39e1c41a00
                               at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/core/src/option.rs:1876:5
  20:     0x7f7577e5e199 - <rustc_resolve[290e47d8627a4365]::late::LateResolutionVisitor as rustc_ast[10d65a8be6722286]::visit::Visitor>::visit_fn
  21:     0x7f7577e4e736 - <rustc_resolve[290e47d8627a4365]::late::LateResolutionVisitor>::resolve_item
  22:     0x7f7577e461ea - <rustc_resolve[290e47d8627a4365]::late::LateResolutionVisitor as rustc_ast[10d65a8be6722286]::visit::Visitor>::visit_item
  23:     0x7f7577e46016 - <rustc_resolve[290e47d8627a4365]::Resolver>::late_resolve_crate
  24:     0x7f7577e4592a - <rustc_session[8b98ba4aacc9d309]::session::Session>::time::<(), <rustc_resolve[290e47d8627a4365]::Resolver>::resolve_crate::{closure#0}>
  25:     0x7f7577e438c3 - <rustc_interface[cf2fa28a67e8bef]::passes::boxed_resolver::BoxedResolver>::access::<<rustc_interface[cf2fa28a67e8bef]::queries::Queries>::expansion::{closure#0}::{closure#0}, core[fae631be8e3c81b5]::result::Result<rustc_ast[10d65a8be6722286]::ast::Crate, rustc_errors[d5334a4a25fbb394]::ErrorGuaranteed>>
  26:     0x7f7577e2e688 - <rustc_interface[cf2fa28a67e8bef]::queries::Queries>::expansion
  27:     0x7f7577e2c39c - <rustc_interface[cf2fa28a67e8bef]::interface::Compiler>::enter::<rustc_driver[1f63e0707e3aafaf]::run_compiler::{closure#1}::{closure#2}, core[fae631be8e3c81b5]::result::Result<core[fae631be8e3c81b5]::option::Option<rustc_interface[cf2fa28a67e8bef]::queries::Linker>, rustc_errors[d5334a4a25fbb394]::ErrorGuaranteed>>
  28:     0x7f7577e2743c - rustc_span[ddec628aeed15f05]::with_source_map::<core[fae631be8e3c81b5]::result::Result<(), rustc_errors[d5334a4a25fbb394]::ErrorGuaranteed>, rustc_interface[cf2fa28a67e8bef]::interface::create_compiler_and_run<core[fae631be8e3c81b5]::result::Result<(), rustc_errors[d5334a4a25fbb394]::ErrorGuaranteed>, rustc_driver[1f63e0707e3aafaf]::run_compiler::{closure#1}>::{closure#1}>
  29:     0x7f7577e26e3f - rustc_interface[cf2fa28a67e8bef]::interface::create_compiler_and_run::<core[fae631be8e3c81b5]::result::Result<(), rustc_errors[d5334a4a25fbb394]::ErrorGuaranteed>, rustc_driver[1f63e0707e3aafaf]::run_compiler::{closure#1}>
  30:     0x7f7577e26032 - <scoped_tls[4da31d6f3f5146b7]::ScopedKey<rustc_span[ddec628aeed15f05]::SessionGlobals>>::set::<rustc_interface[cf2fa28a67e8bef]::interface::run_compiler<core[fae631be8e3c81b5]::result::Result<(), rustc_errors[d5334a4a25fbb394]::ErrorGuaranteed>, rustc_driver[1f63e0707e3aafaf]::run_compiler::{closure#1}>::{closure#0}, core[fae631be8e3c81b5]::result::Result<(), rustc_errors[d5334a4a25fbb394]::ErrorGuaranteed>>
  31:     0x7f7577e2550f - std[7bd0f41fe60b70b6]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[cf2fa28a67e8bef]::util::run_in_thread_pool_with_globals<rustc_interface[cf2fa28a67e8bef]::interface::run_compiler<core[fae631be8e3c81b5]::result::Result<(), rustc_errors[d5334a4a25fbb394]::ErrorGuaranteed>, rustc_driver[1f63e0707e3aafaf]::run_compiler::{closure#1}>::{closure#0}, core[fae631be8e3c81b5]::result::Result<(), rustc_errors[d5334a4a25fbb394]::ErrorGuaranteed>>::{closure#0}, core[fae631be8e3c81b5]::result::Result<(), rustc_errors[d5334a4a25fbb394]::ErrorGuaranteed>>
  32:     0x7f7577e2537f - <<std[7bd0f41fe60b70b6]::thread::Builder>::spawn_unchecked_<rustc_interface[cf2fa28a67e8bef]::util::run_in_thread_pool_with_globals<rustc_interface[cf2fa28a67e8bef]::interface::run_compiler<core[fae631be8e3c81b5]::result::Result<(), rustc_errors[d5334a4a25fbb394]::ErrorGuaranteed>, rustc_driver[1f63e0707e3aafaf]::run_compiler::{closure#1}>::{closure#0}, core[fae631be8e3c81b5]::result::Result<(), rustc_errors[d5334a4a25fbb394]::ErrorGuaranteed>>::{closure#0}, core[fae631be8e3c81b5]::result::Result<(), rustc_errors[d5334a4a25fbb394]::ErrorGuaranteed>>::{closure#1} as core[fae631be8e3c81b5]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  33:     0x7f7576845793 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hc67cb2c032770d7f
                               at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/alloc/src/boxed.rs:1938:9
  34:     0x7f7576845793 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::he79e59a805a8533c
                               at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/alloc/src/boxed.rs:1938:9
  35:     0x7f7576845793 - std::sys::unix::thread::Thread::new::thread_start::hae509166483801f9
                               at /rustc/db0597f5619d5ed93feca28e61226d3581cc7867/library/std/src/sys/unix/thread.rs:108:17
  36:     0x7f757659b8fd - <unknown>
  37:     0x7f757661da60 - <unknown>
  38:                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 1.66.0-nightly (db0597f56 2022-10-11) running on x86_64-unknown-linux-gnu

query stack during panic:
end of query stack

[matthiaskrgr]

panic was added in 1a8f177 / #102889