ICE files are missing the span and message from bug!/span_bug! #133869
Open
Description
I have seen it a couple of times already that people attach ICE files but these backtrace or files look like they are missing the actual ICE message from the report.
for example, my ICE may look like this (or, this is what I would consider part of it)
Backtrace
error: internal compiler error: compiler/rustc_trait_selection/src/traits/normalize.rs:69:17: deeply_normalize should not be called with pending obligations: [
Obligation(predicate=Binder { value: TraitPredicate(<_ as TraitA>, polarity:Positive), bound_vars: [] }, depth=1),
]
--> a.rs:52:24
|
52 | fn method(self) -> impl for<'a> FnMut(&'a ()) -> Self::Assoc<'a>;
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
thread 'rustc' panicked at compiler/rustc_trait_selection/src/traits/normalize.rs:69:17:
Box<dyn Any>
stack backtrace:
0: 0x75750014124a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hbaae7ee6452314ac
1: 0x757500813c26 - core::fmt::write::h2f9a8d2f2637a85f
2: 0x757501be0551 - std::io::Write::write_fmt::he34daf083f9a3021
3: 0x7575001410a2 - std::sys::backtrace::BacktraceLock::print::h0058685886628669
4: 0x7575001435aa - std::panicking::default_hook::{{closure}}::h57409c565dc0e9b1
5: 0x7575001433f3 - std::panicking::default_hook::ha667d029378d179a
6: 0x7574ff2bfa48 - std[c2c54d6827da810b]::panicking::update_hook::<alloc[34a40601127b84fc]::boxed::Box<rustc_driver_impl[c0d80c2a9490dd80]::install_ice_hook::{closure#0}>>::{closure#0}
7: 0x757500143d68 - std::panicking::rust_panic_with_hook::h12054419da422896
8: 0x7574ff2f5271 - std[c2c54d6827da810b]::panicking::begin_panic::<rustc_errors[2e40efcb590bb17b]::ExplicitBug>::{closure#0}
9: 0x7574ff2ea136 - std[c2c54d6827da810b]::sys::backtrace::__rust_end_short_backtrace::<std[c2c54d6827da810b]::panicking::begin_panic<rustc_errors[2e40efcb590bb17b]::ExplicitBug>::{closure#0}, !>
10: 0x7574ff2ea123 - std[c2c54d6827da810b]::panicking::begin_panic::<rustc_errors[2e40efcb590bb17b]::ExplicitBug>
11: 0x7574ff2ff2b1 - <rustc_errors[2e40efcb590bb17b]::diagnostic::BugAbort as rustc_errors[2e40efcb590bb17b]::diagnostic::EmissionGuarantee>::emit_producing_guarantee
12: 0x7574ff854a9c - <rustc_errors[2e40efcb590bb17b]::DiagCtxtHandle>::span_bug::<rustc_span[2659c11acd16cd7]::span_encoding::Span, alloc[34a40601127b84fc]::string::String>
13: 0x7574ff8e75d7 - rustc_middle[27a877ea52447dab]::util::bug::opt_span_bug_fmt::<rustc_span[2659c11acd16cd7]::span_encoding::Span>::{closure#0}
14: 0x7574ff8cfa6a - rustc_middle[27a877ea52447dab]::ty::context::tls::with_opt::<rustc_middle[27a877ea52447dab]::util::bug::opt_span_bug_fmt<rustc_span[2659c11acd16cd7]::span_encoding::Span>::{closure#0}, !>::{closure#0}
15: 0x7574ff8cf8fb - rustc_middle[27a877ea52447dab]::ty::context::tls::with_context_opt::<rustc_middle[27a877ea52447dab]::ty::context::tls::with_opt<rustc_middle[27a877ea52447dab]::util::bug::opt_span_bug_fmt<rustc_span[2659c11acd16cd7]::span_encoding::Span>::{closure#0}, !>::{closure#0}, !>
16: 0x7574fe3d2d77 - rustc_middle[27a877ea52447dab]::util::bug::span_bug_fmt::<rustc_span[2659c11acd16cd7]::span_encoding::Span>
17: 0x757500bc00d4 - <rustc_trait_selection[bf65a12e96ea037e]::traits::engine::ObligationCtxt<rustc_trait_selection[bf65a12e96ea037e]::traits::FulfillmentError>>::assumed_wf_types_and_report_errors
18: 0x75750105c126 - rustc_hir_analysis[6d68d5be0ecf7979]::check::compare_impl_item::check_type_bounds
19: 0x757500e5921d - rustc_hir_analysis[6d68d5be0ecf7979]::check::compare_impl_item::compare_impl_item
20: 0x757500e56b51 - rustc_query_impl[a2008a1cc616166f]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[a2008a1cc616166f]::query_impl::compare_impl_item::dynamic_query::{closure#2}::{closure#0}, rustc_middle[27a877ea52447dab]::query::erase::Erased<[u8; 1usize]>>
21: 0x75750121e930 - rustc_query_system[9a3c01f0ed066ff8]::query::plumbing::try_execute_query::<rustc_query_impl[a2008a1cc616166f]::DynamicConfig<rustc_data_structures[848008ad1566c8b0]::vec_cache::VecCache<rustc_span[2659c11acd16cd7]::def_id::LocalDefId, rustc_middle[27a877ea52447dab]::query::erase::Erased<[u8; 1usize]>, rustc_query_system[9a3c01f0ed066ff8]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[a2008a1cc616166f]::plumbing::QueryCtxt, false>
22: 0x75750121e401 - rustc_query_impl[a2008a1cc616166f]::query_impl::compare_impl_item::get_query_non_incr::__rust_end_short_backtrace
23: 0x7574fcdb057d - rustc_hir_analysis[6d68d5be0ecf7979]::check::check::check_item_type
24: 0x7574fe4419e5 - rustc_hir_analysis[6d68d5be0ecf7979]::check::wfcheck::check_well_formed
25: 0x75750121e687 - rustc_query_impl[a2008a1cc616166f]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[a2008a1cc616166f]::query_impl::check_well_formed::dynamic_query::{closure#2}::{closure#0}, rustc_middle[27a877ea52447dab]::query::erase::Erased<[u8; 1usize]>>
26: 0x75750121e948 - rustc_query_system[9a3c01f0ed066ff8]::query::plumbing::try_execute_query::<rustc_query_impl[a2008a1cc616166f]::DynamicConfig<rustc_data_structures[848008ad1566c8b0]::vec_cache::VecCache<rustc_span[2659c11acd16cd7]::def_id::LocalDefId, rustc_middle[27a877ea52447dab]::query::erase::Erased<[u8; 1usize]>, rustc_query_system[9a3c01f0ed066ff8]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[a2008a1cc616166f]::plumbing::QueryCtxt, false>
27: 0x75750121e662 - rustc_query_impl[a2008a1cc616166f]::query_impl::check_well_formed::get_query_non_incr::__rust_end_short_backtrace
28: 0x75750121f3ec - rustc_hir_analysis[6d68d5be0ecf7979]::check::wfcheck::check_mod_type_wf
29: 0x75750121f20b - rustc_query_impl[a2008a1cc616166f]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[a2008a1cc616166f]::query_impl::check_mod_type_wf::dynamic_query::{closure#2}::{closure#0}, rustc_middle[27a877ea52447dab]::query::erase::Erased<[u8; 1usize]>>
30: 0x75750181a208 - rustc_query_system[9a3c01f0ed066ff8]::query::plumbing::try_execute_query::<rustc_query_impl[a2008a1cc616166f]::DynamicConfig<rustc_query_system[9a3c01f0ed066ff8]::query::caches::DefaultCache<rustc_span[2659c11acd16cd7]::def_id::LocalModDefId, rustc_middle[27a877ea52447dab]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[a2008a1cc616166f]::plumbing::QueryCtxt, false>
31: 0x757501819fb0 - rustc_query_impl[a2008a1cc616166f]::query_impl::check_mod_type_wf::get_query_non_incr::__rust_end_short_backtrace
32: 0x757500a9eb9c - rustc_hir_analysis[6d68d5be0ecf7979]::check_crate
33: 0x757501128cbc - rustc_interface[4b3ef207fa86e12e]::passes::run_required_analyses
34: 0x757501123d1e - rustc_interface[4b3ef207fa86e12e]::passes::analysis
35: 0x757501123cef - rustc_query_impl[a2008a1cc616166f]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[a2008a1cc616166f]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[27a877ea52447dab]::query::erase::Erased<[u8; 1usize]>>
36: 0x7575017d5dba - rustc_query_system[9a3c01f0ed066ff8]::query::plumbing::try_execute_query::<rustc_query_impl[a2008a1cc616166f]::DynamicConfig<rustc_query_system[9a3c01f0ed066ff8]::query::caches::SingleCache<rustc_middle[27a877ea52447dab]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[a2008a1cc616166f]::plumbing::QueryCtxt, false>
37: 0x7575017d5a8e - rustc_query_impl[a2008a1cc616166f]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
38: 0x757501864e39 - rustc_interface[4b3ef207fa86e12e]::interface::run_compiler::<core[437bb64b3ca51b65]::result::Result<(), rustc_span[2659c11acd16cd7]::ErrorGuaranteed>, rustc_driver_impl[c0d80c2a9490dd80]::run_compiler::{closure#0}>::{closure#1}
39: 0x7575017c08a1 - std[c2c54d6827da810b]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[4b3ef207fa86e12e]::util::run_in_thread_with_globals<rustc_interface[4b3ef207fa86e12e]::util::run_in_thread_pool_with_globals<rustc_interface[4b3ef207fa86e12e]::interface::run_compiler<core[437bb64b3ca51b65]::result::Result<(), rustc_span[2659c11acd16cd7]::ErrorGuaranteed>, rustc_driver_impl[c0d80c2a9490dd80]::run_compiler::{closure#0}>::{closure#1}, core[437bb64b3ca51b65]::result::Result<(), rustc_span[2659c11acd16cd7]::ErrorGuaranteed>>::{closure#0}, core[437bb64b3ca51b65]::result::Result<(), rustc_span[2659c11acd16cd7]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[437bb64b3ca51b65]::result::Result<(), rustc_span[2659c11acd16cd7]::ErrorGuaranteed>>
40: 0x7575017c0548 - <<std[c2c54d6827da810b]::thread::Builder>::spawn_unchecked_<rustc_interface[4b3ef207fa86e12e]::util::run_in_thread_with_globals<rustc_interface[4b3ef207fa86e12e]::util::run_in_thread_pool_with_globals<rustc_interface[4b3ef207fa86e12e]::interface::run_compiler<core[437bb64b3ca51b65]::result::Result<(), rustc_span[2659c11acd16cd7]::ErrorGuaranteed>, rustc_driver_impl[c0d80c2a9490dd80]::run_compiler::{closure#0}>::{closure#1}, core[437bb64b3ca51b65]::result::Result<(), rustc_span[2659c11acd16cd7]::ErrorGuaranteed>>::{closure#0}, core[437bb64b3ca51b65]::result::Result<(), rustc_span[2659c11acd16cd7]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[437bb64b3ca51b65]::result::Result<(), rustc_span[2659c11acd16cd7]::ErrorGuaranteed>>::{closure#1} as core[437bb64b3ca51b65]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
41: 0x7575017bfc7b - std::sys::pal::unix::thread::Thread::new::thread_start::h2b35487752b07311
42: 0x7574fbaa339d - <unknown>
43: 0x7574fbb2849c - <unknown>
44: 0x0 - <unknown>
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 make sure that you have updated to the latest nightly
note: please attach the file at `/tmp/im/1/rustc-ice-2024-12-04T19_53_55-344983.txt` to your bug report
query stack during panic:
#0 [compare_impl_item] checking assoc item `<impl at a.rs:55:1: 57:43>::{synthetic#0}` is compatible with trait definition
#1 [check_well_formed] checking that `<impl at a.rs:55:1: 57:43>` is well-formed
end of query stack
error[E0433]: failed to resolve: use of undeclared type `WrapperT`
--> a.rs:46:12
|
46 | helper(WrapperT::AssocB as TraitA);
| ^^^^^^^^
| |
| use of undeclared type `WrapperT`
| help: a struct with a similar name exists: `Wrapper`
error: aborting due to 13 previous errors
Some errors have detailed explanations: E0261, E0277, E0412, E0433, E0437, E0576, E0658.
For more information about an error, try `rustc --explain E0261`.
however, the ice-dump file does not contain the actual ICE message
error: internal compiler error: compiler/rustc_trait_selection/src/traits/normalize.rs:69:17: deeply_normalize should not be called with pending obligations: [
Obligation(predicate=Binder { value: TraitPredicate(<_ as TraitA>, polarity:Positive), bound_vars: [] }, depth=1),
]
which makes it harder to compare it to other ICEs, check if it has been reported already or search for in the tracker...
what ends up in the file is only this:
Backtrace
thread 'rustc' panicked at compiler/rustc_trait_selection/src/traits/normalize.rs:69:17:
Box<dyn Any>
stack backtrace:
0: 0x757501be59a5 - std::backtrace::Backtrace::create::h78d0e7511919e78f
1: 0x75750012c445 - std::backtrace::Backtrace::force_capture::h954b965bf7c9452b
2: 0x7574ff2c0046 - std[c2c54d6827da810b]::panicking::update_hook::<alloc[34a40601127b84fc]::boxed::Box<rustc_driver_impl[c0d80c2a9490dd80]::install_ice_hook::{closure#0}>>::{closure#0}
3: 0x757500143d68 - std::panicking::rust_panic_with_hook::h12054419da422896
4: 0x7574ff2f5271 - std[c2c54d6827da810b]::panicking::begin_panic::<rustc_errors[2e40efcb590bb17b]::ExplicitBug>::{closure#0}
5: 0x7574ff2ea136 - std[c2c54d6827da810b]::sys::backtrace::__rust_end_short_backtrace::<std[c2c54d6827da810b]::panicking::begin_panic<rustc_errors[2e40efcb590bb17b]::ExplicitBug>::{closure#0}, !>
6: 0x7574ff2ea123 - std[c2c54d6827da810b]::panicking::begin_panic::<rustc_errors[2e40efcb590bb17b]::ExplicitBug>
7: 0x7574ff2ff2b1 - <rustc_errors[2e40efcb590bb17b]::diagnostic::BugAbort as rustc_errors[2e40efcb590bb17b]::diagnostic::EmissionGuarantee>::emit_producing_guarantee
8: 0x7574ff854a9c - <rustc_errors[2e40efcb590bb17b]::DiagCtxtHandle>::span_bug::<rustc_span[2659c11acd16cd7]::span_encoding::Span, alloc[34a40601127b84fc]::string::String>
9: 0x7574ff8e75d7 - rustc_middle[27a877ea52447dab]::util::bug::opt_span_bug_fmt::<rustc_span[2659c11acd16cd7]::span_encoding::Span>::{closure#0}
10: 0x7574ff8cfa6a - rustc_middle[27a877ea52447dab]::ty::context::tls::with_opt::<rustc_middle[27a877ea52447dab]::util::bug::opt_span_bug_fmt<rustc_span[2659c11acd16cd7]::span_encoding::Span>::{closure#0}, !>::{closure#0}
11: 0x7574ff8cf8fb - rustc_middle[27a877ea52447dab]::ty::context::tls::with_context_opt::<rustc_middle[27a877ea52447dab]::ty::context::tls::with_opt<rustc_middle[27a877ea52447dab]::util::bug::opt_span_bug_fmt<rustc_span[2659c11acd16cd7]::span_encoding::Span>::{closure#0}, !>::{closure#0}, !>
12: 0x7574fe3d2d77 - rustc_middle[27a877ea52447dab]::util::bug::span_bug_fmt::<rustc_span[2659c11acd16cd7]::span_encoding::Span>
13: 0x757500bc00d4 - <rustc_trait_selection[bf65a12e96ea037e]::traits::engine::ObligationCtxt<rustc_trait_selection[bf65a12e96ea037e]::traits::FulfillmentError>>::assumed_wf_types_and_report_errors
14: 0x75750105c126 - rustc_hir_analysis[6d68d5be0ecf7979]::check::compare_impl_item::check_type_bounds
15: 0x757500e5921d - rustc_hir_analysis[6d68d5be0ecf7979]::check::compare_impl_item::compare_impl_item
16: 0x757500e56b51 - rustc_query_impl[a2008a1cc616166f]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[a2008a1cc616166f]::query_impl::compare_impl_item::dynamic_query::{closure#2}::{closure#0}, rustc_middle[27a877ea52447dab]::query::erase::Erased<[u8; 1usize]>>
17: 0x75750121e930 - rustc_query_system[9a3c01f0ed066ff8]::query::plumbing::try_execute_query::<rustc_query_impl[a2008a1cc616166f]::DynamicConfig<rustc_data_structures[848008ad1566c8b0]::vec_cache::VecCache<rustc_span[2659c11acd16cd7]::def_id::LocalDefId, rustc_middle[27a877ea52447dab]::query::erase::Erased<[u8; 1usize]>, rustc_query_system[9a3c01f0ed066ff8]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[a2008a1cc616166f]::plumbing::QueryCtxt, false>
18: 0x75750121e401 - rustc_query_impl[a2008a1cc616166f]::query_impl::compare_impl_item::get_query_non_incr::__rust_end_short_backtrace
19: 0x7574fcdb057d - rustc_hir_analysis[6d68d5be0ecf7979]::check::check::check_item_type
20: 0x7574fe4419e5 - rustc_hir_analysis[6d68d5be0ecf7979]::check::wfcheck::check_well_formed
21: 0x75750121e687 - rustc_query_impl[a2008a1cc616166f]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[a2008a1cc616166f]::query_impl::check_well_formed::dynamic_query::{closure#2}::{closure#0}, rustc_middle[27a877ea52447dab]::query::erase::Erased<[u8; 1usize]>>
22: 0x75750121e948 - rustc_query_system[9a3c01f0ed066ff8]::query::plumbing::try_execute_query::<rustc_query_impl[a2008a1cc616166f]::DynamicConfig<rustc_data_structures[848008ad1566c8b0]::vec_cache::VecCache<rustc_span[2659c11acd16cd7]::def_id::LocalDefId, rustc_middle[27a877ea52447dab]::query::erase::Erased<[u8; 1usize]>, rustc_query_system[9a3c01f0ed066ff8]::dep_graph::graph::DepNodeIndex>, false, false, false>, rustc_query_impl[a2008a1cc616166f]::plumbing::QueryCtxt, false>
23: 0x75750121e662 - rustc_query_impl[a2008a1cc616166f]::query_impl::check_well_formed::get_query_non_incr::__rust_end_short_backtrace
24: 0x75750121f3ec - rustc_hir_analysis[6d68d5be0ecf7979]::check::wfcheck::check_mod_type_wf
25: 0x75750121f20b - rustc_query_impl[a2008a1cc616166f]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[a2008a1cc616166f]::query_impl::check_mod_type_wf::dynamic_query::{closure#2}::{closure#0}, rustc_middle[27a877ea52447dab]::query::erase::Erased<[u8; 1usize]>>
26: 0x75750181a208 - rustc_query_system[9a3c01f0ed066ff8]::query::plumbing::try_execute_query::<rustc_query_impl[a2008a1cc616166f]::DynamicConfig<rustc_query_system[9a3c01f0ed066ff8]::query::caches::DefaultCache<rustc_span[2659c11acd16cd7]::def_id::LocalModDefId, rustc_middle[27a877ea52447dab]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[a2008a1cc616166f]::plumbing::QueryCtxt, false>
27: 0x757501819fb0 - rustc_query_impl[a2008a1cc616166f]::query_impl::check_mod_type_wf::get_query_non_incr::__rust_end_short_backtrace
28: 0x757500a9eb9c - rustc_hir_analysis[6d68d5be0ecf7979]::check_crate
29: 0x757501128cbc - rustc_interface[4b3ef207fa86e12e]::passes::run_required_analyses
30: 0x757501123d1e - rustc_interface[4b3ef207fa86e12e]::passes::analysis
31: 0x757501123cef - rustc_query_impl[a2008a1cc616166f]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[a2008a1cc616166f]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[27a877ea52447dab]::query::erase::Erased<[u8; 1usize]>>
32: 0x7575017d5dba - rustc_query_system[9a3c01f0ed066ff8]::query::plumbing::try_execute_query::<rustc_query_impl[a2008a1cc616166f]::DynamicConfig<rustc_query_system[9a3c01f0ed066ff8]::query::caches::SingleCache<rustc_middle[27a877ea52447dab]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[a2008a1cc616166f]::plumbing::QueryCtxt, false>
33: 0x7575017d5a8e - rustc_query_impl[a2008a1cc616166f]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
34: 0x757501864e39 - rustc_interface[4b3ef207fa86e12e]::interface::run_compiler::<core[437bb64b3ca51b65]::result::Result<(), rustc_span[2659c11acd16cd7]::ErrorGuaranteed>, rustc_driver_impl[c0d80c2a9490dd80]::run_compiler::{closure#0}>::{closure#1}
35: 0x7575017c08a1 - std[c2c54d6827da810b]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[4b3ef207fa86e12e]::util::run_in_thread_with_globals<rustc_interface[4b3ef207fa86e12e]::util::run_in_thread_pool_with_globals<rustc_interface[4b3ef207fa86e12e]::interface::run_compiler<core[437bb64b3ca51b65]::result::Result<(), rustc_span[2659c11acd16cd7]::ErrorGuaranteed>, rustc_driver_impl[c0d80c2a9490dd80]::run_compiler::{closure#0}>::{closure#1}, core[437bb64b3ca51b65]::result::Result<(), rustc_span[2659c11acd16cd7]::ErrorGuaranteed>>::{closure#0}, core[437bb64b3ca51b65]::result::Result<(), rustc_span[2659c11acd16cd7]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[437bb64b3ca51b65]::result::Result<(), rustc_span[2659c11acd16cd7]::ErrorGuaranteed>>
36: 0x7575017c0548 - <<std[c2c54d6827da810b]::thread::Builder>::spawn_unchecked_<rustc_interface[4b3ef207fa86e12e]::util::run_in_thread_with_globals<rustc_interface[4b3ef207fa86e12e]::util::run_in_thread_pool_with_globals<rustc_interface[4b3ef207fa86e12e]::interface::run_compiler<core[437bb64b3ca51b65]::result::Result<(), rustc_span[2659c11acd16cd7]::ErrorGuaranteed>, rustc_driver_impl[c0d80c2a9490dd80]::run_compiler::{closure#0}>::{closure#1}, core[437bb64b3ca51b65]::result::Result<(), rustc_span[2659c11acd16cd7]::ErrorGuaranteed>>::{closure#0}, core[437bb64b3ca51b65]::result::Result<(), rustc_span[2659c11acd16cd7]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[437bb64b3ca51b65]::result::Result<(), rustc_span[2659c11acd16cd7]::ErrorGuaranteed>>::{closure#1} as core[437bb64b3ca51b65]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
37: 0x7575017bfc7b - std::sys::pal::unix::thread::Thread::new::thread_start::h2b35487752b07311
38: 0x7574fbaa339d - <unknown>
39: 0x7574fbb2849c - <unknown>
40: 0x0 - <unknown>
rustc version: 1.85.0-nightly (c44b3d50f 2024-12-03)
platform: x86_64-unknown-linux-gnu
query stack during panic:
#0 [compare_impl_item] checking assoc item `<impl at a.rs:55:1: 57:43>::{synthetic#0}` is compatible with trait definition
#1 [check_well_formed] checking that `<impl at a.rs:55:1: 57:43>` is well-formed
#2 [check_mod_type_wf] checking that types are well-formed in top-level module
#3 [analysis] running analysis passes on this crate
end of query stack
can we extend what is printed into the file, or are there privacy concerns etc?