thread 'rustc' panicked at compiler/rustc_ast_lowering/src/lib.rs:962:56: called `Option::unwrap()` on a `None` value stack backtrace: 0: 0x7ffb329cc224 - std::backtrace_rs::backtrace::libunwind::trace::ha9bdce7040d5dea4 at /rustc/7606c13961ddc1174b70638e934df0439b7dc515/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5 1: 0x7ffb329cc224 - std::backtrace_rs::backtrace::trace_unsynchronized::h8e80669615b477e9 at /rustc/7606c13961ddc1174b70638e934df0439b7dc515/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 2: 0x7ffb329cc224 - std::sys_common::backtrace::_print_fmt::hcf4d959aad241db4 at /rustc/7606c13961ddc1174b70638e934df0439b7dc515/library/std/src/sys_common/backtrace.rs:68:5 3: 0x7ffb329cc224 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h7d2529ed1cd6a35e at /rustc/7606c13961ddc1174b70638e934df0439b7dc515/library/std/src/sys_common/backtrace.rs:44:22 4: 0x7ffb32a1d33c - core::fmt::rt::Argument::fmt::hb6acc149bc91f94e at /rustc/7606c13961ddc1174b70638e934df0439b7dc515/library/core/src/fmt/rt.rs:142:9 5: 0x7ffb32a1d33c - core::fmt::write::h07f4440a6bb50fa0 at /rustc/7606c13961ddc1174b70638e934df0439b7dc515/library/core/src/fmt/mod.rs:1120:17 6: 0x7ffb329c0bbf - std::io::Write::write_fmt::h73f571dd622c3243 at /rustc/7606c13961ddc1174b70638e934df0439b7dc515/library/std/src/io/mod.rs:1846:15 7: 0x7ffb329cbfd4 - std::sys_common::backtrace::_print::h9ef5634d5714da1b at /rustc/7606c13961ddc1174b70638e934df0439b7dc515/library/std/src/sys_common/backtrace.rs:47:5 8: 0x7ffb329cbfd4 - std::sys_common::backtrace::print::h3a4538c072b7f968 at /rustc/7606c13961ddc1174b70638e934df0439b7dc515/library/std/src/sys_common/backtrace.rs:34:9 9: 0x7ffb329ced0b - std::panicking::default_hook::{{closure}}::hafb96db721edd26a 10: 0x7ffb329cea67 - std::panicking::default_hook::he51c70478469d3b8 at /rustc/7606c13961ddc1174b70638e934df0439b7dc515/library/std/src/panicking.rs:292:9 11: 0x7ffb2f686dfc - std[ce1c42f110f14421]::panicking::update_hook::<alloc[79a89dc93b620337]::boxed::Box<rustc_driver_impl[59494f0453ea5af6]::install_ice_hook::{closure#0}>>::{closure#0} 12: 0x7ffb329cf470 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h8254891e323ca763 at /rustc/7606c13961ddc1174b70638e934df0439b7dc515/library/alloc/src/boxed.rs:2030:9 13: 0x7ffb329cf470 - std::panicking::rust_panic_with_hook::h49de3172531c6589 at /rustc/7606c13961ddc1174b70638e934df0439b7dc515/library/std/src/panicking.rs:783:13 14: 0x7ffb329cf179 - std::panicking::begin_panic_handler::{{closure}}::h1d1f02b06e03fa2c at /rustc/7606c13961ddc1174b70638e934df0439b7dc515/library/std/src/panicking.rs:649:13 15: 0x7ffb329cc6f6 - std::sys_common::backtrace::__rust_end_short_backtrace::hc793b9e42bc684d8 at /rustc/7606c13961ddc1174b70638e934df0439b7dc515/library/std/src/sys_common/backtrace.rs:171:18 16: 0x7ffb329ceee4 - rust_begin_unwind at /rustc/7606c13961ddc1174b70638e934df0439b7dc515/library/std/src/panicking.rs:645:5 17: 0x7ffb32a19855 - core::panicking::panic_fmt::ha62c22205b57a090 at /rustc/7606c13961ddc1174b70638e934df0439b7dc515/library/core/src/panicking.rs:72:14 18: 0x7ffb32a19913 - core::panicking::panic::h4472113f8306584a at /rustc/7606c13961ddc1174b70638e934df0439b7dc515/library/core/src/panicking.rs:144:5 19: 0x7ffb32a195e6 - core::option::unwrap_failed::hb9ac757173c35f67 at /rustc/7606c13961ddc1174b70638e934df0439b7dc515/library/core/src/option.rs:1985:5 20: 0x7ffb30b909a2 - <rustc_ast_lowering[6c6906526f1b1862]::LoweringContext>::lower_attrs 21: 0x7ffb30b6fc6e - <rustc_ast_lowering[6c6906526f1b1862]::LoweringContext>::lower_assoc_item 22: 0x7ffb30b6cd15 - <rustc_ast_lowering[6c6906526f1b1862]::item::ItemLowerer>::lower_node 23: 0x7ffb317d6f42 - rustc_ast_lowering[6c6906526f1b1862]::lower_to_hir 24: 0x7ffb317d66b6 - rustc_query_impl[26c48826fbaab4d5]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[26c48826fbaab4d5]::query_impl::hir_crate::dynamic_query::{closure#2}::{closure#0}, rustc_middle[17af273565a02f54]::query::erase::Erased<[u8; 8usize]>> 25: 0x7ffb317d508e - rustc_query_system[ab339c616628e8a0]::query::plumbing::try_execute_query::<rustc_query_impl[26c48826fbaab4d5]::DynamicConfig<rustc_query_system[ab339c616628e8a0]::query::caches::SingleCache<rustc_middle[17af273565a02f54]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[26c48826fbaab4d5]::plumbing::QueryCtxt, false> 26: 0x7ffb317d4c82 - rustc_query_impl[26c48826fbaab4d5]::query_impl::hir_crate::get_query_non_incr::__rust_end_short_backtrace 27: 0x7ffb30c673c3 - rustc_query_impl[26c48826fbaab4d5]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[26c48826fbaab4d5]::query_impl::hir_attrs::dynamic_query::{closure#2}::{closure#0}, rustc_middle[17af273565a02f54]::query::erase::Erased<[u8; 8usize]>> 28: 0x7ffb30c66925 - rustc_query_system[ab339c616628e8a0]::query::plumbing::try_execute_query::<rustc_query_impl[26c48826fbaab4d5]::DynamicConfig<rustc_query_system[ab339c616628e8a0]::query::caches::VecCache<rustc_hir[8f808412acee9cf8]::hir_id::OwnerId, rustc_middle[17af273565a02f54]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[26c48826fbaab4d5]::plumbing::QueryCtxt, false> 29: 0x7ffb30c66689 - rustc_query_impl[26c48826fbaab4d5]::query_impl::hir_attrs::get_query_non_incr::__rust_end_short_backtrace 30: 0x7ffb30a1c2ea - <rustc_middle[17af273565a02f54]::hir::map::Map>::attrs 31: 0x7ffb3150a603 - rustc_passes[69d23befb4dabec6]::entry::entry_fn 32: 0x7ffb3150a598 - rustc_query_impl[26c48826fbaab4d5]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[26c48826fbaab4d5]::query_impl::entry_fn::dynamic_query::{closure#2}::{closure#0}, rustc_middle[17af273565a02f54]::query::erase::Erased<[u8; 12usize]>> 33: 0x7ffb3150a573 - <rustc_query_impl[26c48826fbaab4d5]::query_impl::entry_fn::dynamic_query::{closure#2} as core[c7bf0aa57b07cfee]::ops::function::FnOnce<(rustc_middle[17af273565a02f54]::ty::context::TyCtxt, ())>>::call_once 34: 0x7ffb31509e8a - rustc_query_system[ab339c616628e8a0]::query::plumbing::try_execute_query::<rustc_query_impl[26c48826fbaab4d5]::DynamicConfig<rustc_query_system[ab339c616628e8a0]::query::caches::SingleCache<rustc_middle[17af273565a02f54]::query::erase::Erased<[u8; 12usize]>>, false, false, false>, rustc_query_impl[26c48826fbaab4d5]::plumbing::QueryCtxt, false> 35: 0x7ffb31509c45 - rustc_query_impl[26c48826fbaab4d5]::query_impl::entry_fn::get_query_non_incr::__rust_end_short_backtrace 36: 0x7ffb316fa2b4 - rustc_interface[7340c5359700de6d]::passes::analysis 37: 0x7ffb316fa1d9 - rustc_query_impl[26c48826fbaab4d5]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[26c48826fbaab4d5]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[17af273565a02f54]::query::erase::Erased<[u8; 1usize]>> 38: 0x7ffb3173e525 - rustc_query_system[ab339c616628e8a0]::query::plumbing::try_execute_query::<rustc_query_impl[26c48826fbaab4d5]::DynamicConfig<rustc_query_system[ab339c616628e8a0]::query::caches::SingleCache<rustc_middle[17af273565a02f54]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[26c48826fbaab4d5]::plumbing::QueryCtxt, false> 39: 0x7ffb3173e289 - rustc_query_impl[26c48826fbaab4d5]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace 40: 0x7ffb3174d242 - rustc_interface[7340c5359700de6d]::interface::run_compiler::<core[c7bf0aa57b07cfee]::result::Result<(), rustc_span[11ebd0cf9c54dbf2]::ErrorGuaranteed>, rustc_driver_impl[59494f0453ea5af6]::run_compiler::{closure#0}>::{closure#0} 41: 0x7ffb319f94e4 - std[ce1c42f110f14421]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[7340c5359700de6d]::util::run_in_thread_with_globals<rustc_interface[7340c5359700de6d]::util::run_in_thread_pool_with_globals<rustc_interface[7340c5359700de6d]::interface::run_compiler<core[c7bf0aa57b07cfee]::result::Result<(), rustc_span[11ebd0cf9c54dbf2]::ErrorGuaranteed>, rustc_driver_impl[59494f0453ea5af6]::run_compiler::{closure#0}>::{closure#0}, core[c7bf0aa57b07cfee]::result::Result<(), rustc_span[11ebd0cf9c54dbf2]::ErrorGuaranteed>>::{closure#0}, core[c7bf0aa57b07cfee]::result::Result<(), rustc_span[11ebd0cf9c54dbf2]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[c7bf0aa57b07cfee]::result::Result<(), rustc_span[11ebd0cf9c54dbf2]::ErrorGuaranteed>> 42: 0x7ffb319f9310 - <<std[ce1c42f110f14421]::thread::Builder>::spawn_unchecked_<rustc_interface[7340c5359700de6d]::util::run_in_thread_with_globals<rustc_interface[7340c5359700de6d]::util::run_in_thread_pool_with_globals<rustc_interface[7340c5359700de6d]::interface::run_compiler<core[c7bf0aa57b07cfee]::result::Result<(), rustc_span[11ebd0cf9c54dbf2]::ErrorGuaranteed>, rustc_driver_impl[59494f0453ea5af6]::run_compiler::{closure#0}>::{closure#0}, core[c7bf0aa57b07cfee]::result::Result<(), rustc_span[11ebd0cf9c54dbf2]::ErrorGuaranteed>>::{closure#0}, core[c7bf0aa57b07cfee]::result::Result<(), rustc_span[11ebd0cf9c54dbf2]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[c7bf0aa57b07cfee]::result::Result<(), rustc_span[11ebd0cf9c54dbf2]::ErrorGuaranteed>>::{closure#1} as core[c7bf0aa57b07cfee]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} 43: 0x7ffb329d8c15 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hd1519676561fa69a at /rustc/7606c13961ddc1174b70638e934df0439b7dc515/library/alloc/src/boxed.rs:2016:9 44: 0x7ffb329d8c15 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h2631236f14039a09 at /rustc/7606c13961ddc1174b70638e934df0439b7dc515/library/alloc/src/boxed.rs:2016:9 45: 0x7ffb329d8c15 - std::sys::pal::unix::thread::Thread::new::thread_start::hb46703a54bb9712d at /rustc/7606c13961ddc1174b70638e934df0439b7dc515/library/std/src/sys/pal/unix/thread.rs:108:17 46: 0x7ffb2c66e55a - <unknown> 47: 0x7ffb2c6eba3c - <unknown> 48: 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: please attach the file at `/tmp/glacier2_hangtest/rustc-ice-2024-03-04T11_21_05-158378.txt` to your bug report query stack during panic: <OOM HAPPENS HERE>