thread 'rustc' panicked at 'internal error: entered unreachable code', compiler/rustc_parse/src/parser/expr.rs:2035:29 stack backtrace: 0: 0x7f2cf3368c41 - std::backtrace_rs::backtrace::libunwind::trace::h4e5cd7155e2ebaac at /rustc/371994e0d8380600ddda78ca1be937c7fb179b49/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5 1: 0x7f2cf3368c41 - std::backtrace_rs::backtrace::trace_unsynchronized::hb4d504f8def07b70 at /rustc/371994e0d8380600ddda78ca1be937c7fb179b49/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 2: 0x7f2cf3368c41 - std::sys_common::backtrace::_print_fmt::h270ee65403a6a640 at /rustc/371994e0d8380600ddda78ca1be937c7fb179b49/library/std/src/sys_common/backtrace.rs:65:5 3: 0x7f2cf3368c41 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hfa127bbe4d370ae8 at /rustc/371994e0d8380600ddda78ca1be937c7fb179b49/library/std/src/sys_common/backtrace.rs:44:22 4: 0x7f2cf33c95ff - core::fmt::rt::Argument::fmt::h975c0825ea1bb836 at /rustc/371994e0d8380600ddda78ca1be937c7fb179b49/library/core/src/fmt/rt.rs:138:9 5: 0x7f2cf33c95ff - core::fmt::write::hb200bbda235147d0 at /rustc/371994e0d8380600ddda78ca1be937c7fb179b49/library/core/src/fmt/mod.rs:1094:21 6: 0x7f2cf335bee1 - std::io::Write::write_fmt::hf4eeaa80392fd692 at /rustc/371994e0d8380600ddda78ca1be937c7fb179b49/library/std/src/io/mod.rs:1713:15 7: 0x7f2cf3368a55 - std::sys_common::backtrace::_print::h2427e2e0721aca68 at /rustc/371994e0d8380600ddda78ca1be937c7fb179b49/library/std/src/sys_common/backtrace.rs:47:5 8: 0x7f2cf3368a55 - std::sys_common::backtrace::print::h8c074174f5a65b94 at /rustc/371994e0d8380600ddda78ca1be937c7fb179b49/library/std/src/sys_common/backtrace.rs:34:9 9: 0x7f2cf336b737 - std::panicking::default_hook::{{closure}}::habdecd03f278805d 10: 0x7f2cf336b524 - std::panicking::default_hook::hfeee4c9ec6e7984a at /rustc/371994e0d8380600ddda78ca1be937c7fb179b49/library/std/src/panicking.rs:288:9 11: 0x7f2cf65ef46b - rustc_driver_impl[82ed5c687fa14bc7]::install_ice_hook::{closure#0} 12: 0x7f2cf336be7d - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h75ee17e40156a9b1 at /rustc/371994e0d8380600ddda78ca1be937c7fb179b49/library/alloc/src/boxed.rs:1999:9 13: 0x7f2cf336be7d - std::panicking::rust_panic_with_hook::h50748255142a0809 at /rustc/371994e0d8380600ddda78ca1be937c7fb179b49/library/std/src/panicking.rs:709:13 14: 0x7f2cf336bbd1 - std::panicking::begin_panic_handler::{{closure}}::h1532befb1017034b at /rustc/371994e0d8380600ddda78ca1be937c7fb179b49/library/std/src/panicking.rs:595:13 15: 0x7f2cf3369076 - std::sys_common::backtrace::__rust_end_short_backtrace::h36f919598d3260ac at /rustc/371994e0d8380600ddda78ca1be937c7fb179b49/library/std/src/sys_common/backtrace.rs:151:18 16: 0x7f2cf336b962 - rust_begin_unwind at /rustc/371994e0d8380600ddda78ca1be937c7fb179b49/library/std/src/panicking.rs:593:5 17: 0x7f2cf33c5883 - core::panicking::panic_fmt::h637089c9b9878b43 at /rustc/371994e0d8380600ddda78ca1be937c7fb179b49/library/core/src/panicking.rs:67:14 18: 0x7f2cf33c5913 - core::panicking::panic::hafc1723084de6f6f at /rustc/371994e0d8380600ddda78ca1be937c7fb179b49/library/core/src/panicking.rs:117:5 19: 0x7f2cf528a9a8 - <rustc_parse[875314dae382605e]::parser::Parser>::parse_opt_meta_item_lit 20: 0x7f2cf573899a - <rustc_parse[875314dae382605e]::parser::Parser>::parse_item_foreign_mod 21: 0x7f2cf56ee175 - <rustc_parse[875314dae382605e]::parser::Parser>::parse_item_kind 22: 0x7f2cf56e7a62 - <rustc_parse[875314dae382605e]::parser::Parser>::parse_item_common 23: 0x7f2cf51bbee2 - <rustc_parse[875314dae382605e]::parser::Parser>::parse_stmt_without_recovery 24: 0x7f2cf5058ad1 - <rustc_parse[875314dae382605e]::parser::Parser>::parse_full_stmt 25: 0x7f2cf5051193 - rustc_expand[3d8282d625be83b0]::expand::parse_ast_fragment 26: 0x7f2cf66983cf - rustc_expand[3d8282d625be83b0]::mbe::diagnostics::emit_frag_parse_err 27: 0x7f2cf504e3d1 - <rustc_expand[3d8282d625be83b0]::mbe::macro_rules::ParserAnyMacro>::make 28: 0x7f2cf504d86d - <rustc_expand[3d8282d625be83b0]::mbe::macro_rules::ParserAnyMacro as rustc_expand[3d8282d625be83b0]::base::MacResult>::make_expr 29: 0x7f2cf5047f98 - <rustc_expand[3d8282d625be83b0]::expand::MacroExpander>::fully_expand_fragment 30: 0x7f2cf56442a7 - <rustc_expand[3d8282d625be83b0]::expand::MacroExpander>::expand_crate 31: 0x7f2cf56435b0 - <rustc_session[c89a0e04955a4434]::session::Session>::time::<rustc_ast[e53a9a02179a5d5]::ast::Crate, rustc_interface[5fbdb9547dedf44d]::passes::configure_and_expand::{closure#1}> 32: 0x7f2cf55f6ec4 - rustc_interface[5fbdb9547dedf44d]::passes::resolver_for_lowering 33: 0x7f2cf5b072ca - rustc_query_impl[eec84043af3db326]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[eec84043af3db326]::query_impl::resolver_for_lowering::dynamic_query::{closure#2}::{closure#0}, rustc_middle[cf9791794388bff2]::query::erase::Erased<[u8; 8usize]>> 34: 0x7f2cf5b072b9 - <rustc_query_impl[eec84043af3db326]::query_impl::resolver_for_lowering::dynamic_query::{closure#2} as core[c5a351271e0d68a3]::ops::function::FnOnce<(rustc_middle[cf9791794388bff2]::ty::context::TyCtxt, ())>>::call_once 35: 0x7f2cf5a2d65c - rustc_query_system[558b060458ea38]::query::plumbing::try_execute_query::<rustc_query_impl[eec84043af3db326]::DynamicConfig<rustc_query_system[558b060458ea38]::query::caches::SingleCache<rustc_middle[cf9791794388bff2]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[eec84043af3db326]::plumbing::QueryCtxt, false> 36: 0x7f2cf5f736b7 - rustc_query_impl[eec84043af3db326]::query_impl::resolver_for_lowering::get_query_non_incr::__rust_end_short_backtrace 37: 0x7f2cf5c6a0f3 - <rustc_middle[cf9791794388bff2]::ty::context::GlobalCtxt>::enter::<rustc_driver_impl[82ed5c687fa14bc7]::run_compiler::{closure#1}::{closure#2}::{closure#2}, &rustc_data_structures[77d4adee0611d83c]::steal::Steal<(rustc_middle[cf9791794388bff2]::ty::ResolverAstLowering, alloc[a8c9cd47032004ef]::rc::Rc<rustc_ast[e53a9a02179a5d5]::ast::Crate>)>> 38: 0x7f2cf58bff05 - <rustc_interface[5fbdb9547dedf44d]::interface::Compiler>::enter::<rustc_driver_impl[82ed5c687fa14bc7]::run_compiler::{closure#1}::{closure#2}, core[c5a351271e0d68a3]::result::Result<core[c5a351271e0d68a3]::option::Option<rustc_interface[5fbdb9547dedf44d]::queries::Linker>, rustc_span[5b25b58355c0a00e]::ErrorGuaranteed>> 39: 0x7f2cf58bdb79 - <scoped_tls[c0707037e0f60a9b]::ScopedKey<rustc_span[5b25b58355c0a00e]::SessionGlobals>>::set::<rustc_interface[5fbdb9547dedf44d]::interface::run_compiler<core[c5a351271e0d68a3]::result::Result<(), rustc_span[5b25b58355c0a00e]::ErrorGuaranteed>, rustc_driver_impl[82ed5c687fa14bc7]::run_compiler::{closure#1}>::{closure#0}, core[c5a351271e0d68a3]::result::Result<(), rustc_span[5b25b58355c0a00e]::ErrorGuaranteed>> 40: 0x7f2cf58bcfe6 - std[cd097dad4f2506ec]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[5fbdb9547dedf44d]::util::run_in_thread_pool_with_globals<rustc_interface[5fbdb9547dedf44d]::interface::run_compiler<core[c5a351271e0d68a3]::result::Result<(), rustc_span[5b25b58355c0a00e]::ErrorGuaranteed>, rustc_driver_impl[82ed5c687fa14bc7]::run_compiler::{closure#1}>::{closure#0}, core[c5a351271e0d68a3]::result::Result<(), rustc_span[5b25b58355c0a00e]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[c5a351271e0d68a3]::result::Result<(), rustc_span[5b25b58355c0a00e]::ErrorGuaranteed>> 41: 0x7f2cf58bcd95 - <<std[cd097dad4f2506ec]::thread::Builder>::spawn_unchecked_<rustc_interface[5fbdb9547dedf44d]::util::run_in_thread_pool_with_globals<rustc_interface[5fbdb9547dedf44d]::interface::run_compiler<core[c5a351271e0d68a3]::result::Result<(), rustc_span[5b25b58355c0a00e]::ErrorGuaranteed>, rustc_driver_impl[82ed5c687fa14bc7]::run_compiler::{closure#1}>::{closure#0}, core[c5a351271e0d68a3]::result::Result<(), rustc_span[5b25b58355c0a00e]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[c5a351271e0d68a3]::result::Result<(), rustc_span[5b25b58355c0a00e]::ErrorGuaranteed>>::{closure#1} as core[c5a351271e0d68a3]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} 42: 0x7f2cf33763a5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hae3241ec192e9c95 at /rustc/371994e0d8380600ddda78ca1be937c7fb179b49/library/alloc/src/boxed.rs:1985:9 43: 0x7f2cf33763a5 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h75f69d4e89077470 at /rustc/371994e0d8380600ddda78ca1be937c7fb179b49/library/alloc/src/boxed.rs:1985:9 44: 0x7f2cf33763a5 - std::sys::unix::thread::Thread::new::thread_start::heddaad8550613863 at /rustc/371994e0d8380600ddda78ca1be937c7fb179b49/library/std/src/sys/unix/thread.rs:108:17 45: 0x7f2cf310f44b - <unknown> 46: 0x7f2cf3192e40 - <unknown> 47: 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 1.72.0-nightly (371994e0d 2023-06-13) running on x86_64-unknown-linux-gnu query stack during panic: #0 [resolver_for_lowering] getting the resolver for lowering end of query stack