Build date: 2025-09-14T13:14:58.135Z
Build duration: 15.055s
Builder does-it-build commit: b213eec65d2e1b38
Compiling compiler_builtins v0.1.160 (/var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-14-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/compiler-builtins/compiler-builtins)
Compiling core v0.0.0 (/var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-14-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core)
thread 'rustc' (2443922) panicked at compiler/rustc_lint/src/types/improper_ctypes.rs:231:40:
$ident: found Item { owner_id: DefId(0:2222 ~ core[2397]::mem::transmutability::TransmuteFrom::transmute::Transmute), kind: Union(Transmute#0, Generics { params: [GenericParam { hir_id: HirId(DefId(0:2222 ~ core[2397]::mem::transmutability::TransmuteFrom::transmute::Transmute).1), def_id: DefId(0:2223 ~ core[2397]::mem::transmutability::TransmuteFrom::transmute::Transmute::Src), name: Plain(Src#0), span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-14-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:123:25: 123:28 (#0), pure_wrt_drop: false, kind: Type { default: None, synthetic: false }, colon_span: None, source: Generics }, GenericParam { hir_id: HirId(DefId(0:2222 ~ core[2397]::mem::transmutability::TransmuteFrom::transmute::Transmute).2), def_id: DefId(0:2224 ~ core[2397]::mem::transmutability::TransmuteFrom::transmute::Transmute::Dst), name: Plain(Dst#0), span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-14-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:123:30: 123:33 (#0), pure_wrt_drop: false, kind: Type { default: None, synthetic: false }, colon_span: None, source: Generics }], predicates: [], has_where_clause_predicates: false, where_clause_span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-14-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:123:34: 123:34 (#0), span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-14-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:123:24: 123:34 (#0) }, Struct { fields: [FieldDef { span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-14-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:124:13: 124:35 (#0), vis_span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-14-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:124:13: 124:13 (#0), ident: src#0, hir_id: HirId(DefId(0:2222 ~ core[2397]::mem::transmutability::TransmuteFrom::transmute::Transmute).7), def_id: DefId(0:2225 ~ core[2397]::mem::transmutability::TransmuteFrom::transmute::Transmute::src), ty: Ty { hir_id: HirId(DefId(0:2222 ~ core[2397]::mem::transmutability::TransmuteFrom::transmute::Transmute).3), span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-14-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:124:18: 124:35 (#0), kind: Path(Resolved(None, Path { span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-14-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:124:18: 124:35 (#0), res: Def(Struct, DefId(0:27095 ~ core[2397]::mem::manually_drop::ManuallyDrop)), segments: [PathSegment { ident: ManuallyDrop#0, hir_id: HirId(DefId(0:2222 ~ core[2397]::mem::transmutability::TransmuteFrom::transmute::Transmute).6), res: Def(Struct, DefId(0:27095 ~ core[2397]::mem::manually_drop::ManuallyDrop)), args: Some(GenericArgs { args: [Type(Ty { hir_id: HirId(DefId(0:2222 ~ core[2397]::mem::transmutability::TransmuteFrom::transmute::Transmute).4), span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-14-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:124:31: 124:34 (#0), kind: Path(Resolved(None, Path { span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-14-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:124:31: 124:34 (#0), res: Def(TyParam, DefId(0:2223 ~ core[2397]::mem::transmutability::TransmuteFrom::transmute::Transmute::Src)), segments: [PathSegment { ident: Src#0, hir_id: HirId(DefId(0:2222 ~ core[2397]::mem::transmutability::TransmuteFrom::transmute::Transmute).5), res: Def(TyParam, DefId(0:2223 ~ core[2397]::mem::transmutability::TransmuteFrom::transmute::Transmute::Src)), args: None, infer_args: false }] })) })], constraints: [], parenthesized: No, span_ext: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-14-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:124:30: 124:35 (#0) }), infer_args: false }] })) }, safety: Safe, default: None }, FieldDef { span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-14-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:125:13: 125:35 (#0), vis_span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-14-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:125:13: 125:13 (#0), ident: dst#0, hir_id: HirId(DefId(0:2222 ~ core[2397]::mem::transmutability::TransmuteFrom::transmute::Transmute).12), def_id: DefId(0:2226 ~ core[2397]::mem::transmutability::TransmuteFrom::transmute::Transmute::dst), ty: Ty { hir_id: HirId(DefId(0:2222 ~ core[2397]::mem::transmutability::TransmuteFrom::transmute::Transmute).8), span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-14-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:125:18: 125:35 (#0), kind: Path(Resolved(None, Path { span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-14-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:125:18: 125:35 (#0), res: Def(Struct, DefId(0:27095 ~ core[2397]::mem::manually_drop::ManuallyDrop)), segments: [PathSegment { ident: ManuallyDrop#0, hir_id: HirId(DefId(0:2222 ~ core[2397]::mem::transmutability::TransmuteFrom::transmute::Transmute).11), res: Def(Struct, DefId(0:27095 ~ core[2397]::mem::manually_drop::ManuallyDrop)), args: Some(GenericArgs { args: [Type(Ty { hir_id: HirId(DefId(0:2222 ~ core[2397]::mem::transmutability::TransmuteFrom::transmute::Transmute).9), span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-14-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:125:31: 125:34 (#0), kind: Path(Resolved(None, Path { span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-14-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:125:31: 125:34 (#0), res: Def(TyParam, DefId(0:2224 ~ core[2397]::mem::transmutability::TransmuteFrom::transmute::Transmute::Dst)), segments: [PathSegment { ident: Dst#0, hir_id: HirId(DefId(0:2222 ~ core[2397]::mem::transmutability::TransmuteFrom::transmute::Transmute).10), res: Def(TyParam, DefId(0:2224 ~ core[2397]::mem::transmutability::TransmuteFrom::transmute::Transmute::Dst)), args: None, infer_args: false }] })) })], constraints: [], parenthesized: No, span_ext: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-14-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:125:30: 125:35 (#0) }), infer_args: false }] })) }, safety: Safe, default: None }], recovered: No }), span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-14-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:123:9: 126:10 (#0), vis_span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-14-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:123:9: 123:9 (#0), has_delayed_lints: false }
stack backtrace:
0: 0x7f2570a4a773 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hcf59a46293aa5eb1
1: 0x7f2571201b58 - core::fmt::write::h8dc485dd906e4442
2: 0x7f25709ff521 - std::io::Write::write_fmt::hba8247aec2c11ae5
3: 0x7f2570a106a2 - std::sys::backtrace::BacktraceLock::print::h854838da61675cc9
4: 0x7f2570a165e9 - std::panicking::default_hook::{{closure}}::ha92c8f412c6a790e
5: 0x7f2570a16113 - std::panicking::default_hook::h20b204846713ee95
6: 0x7f256fa05077 - std[8a15c92de76023c9]::panicking::update_hook::<alloc[33d90013ace0f702]::boxed::Box<rustc_driver_impl[35177e56b72f458e]::install_ice_hook::{closure#1}>>::{closure#0}
7: 0x7f2570a16a0f - std::panicking::panic_with_hook::had394b1c5c651ceb
8: 0x7f2570a167ca - std::panicking::panic_handler::{{closure}}::h28bb7215e5f9ceb3
9: 0x7f2570a107d9 - std::sys::backtrace::__rust_end_short_backtrace::h08b455234703e3cf
10: 0x7f25709f108d - __rustc[46daf8625d84f73a]::rust_begin_unwind
11: 0x7f256d0e7670 - core::panicking::panic_fmt::hae136728593523c5
12: 0x7f256faddee1 - rustc_hir[14426e42d646ff74]::hir::expect_failed::<&rustc_hir[14426e42d646ff74]::hir::Item>
13: 0x7f256fadfe02 - <rustc_hir[14426e42d646ff74]::hir::Item>::expect_struct
14: 0x7f25719d951e - <rustc_lint[e4cc92b56793eb0f]::BuiltinCombinedModuleLateLintPass as rustc_lint[e4cc92b56793eb0f]::passes::LateLintPass>::check_item
15: 0x7f25719cd005 - <rustc_lint[e4cc92b56793eb0f]::late::LateContextAndPass<rustc_lint[e4cc92b56793eb0f]::BuiltinCombinedModuleLateLintPass> as rustc_hir[14426e42d646ff74]::intravisit::Visitor>::visit_nested_item
16: 0x7f25719c3d06 - <rustc_lint[e4cc92b56793eb0f]::late::LateContextAndPass<rustc_lint[e4cc92b56793eb0f]::BuiltinCombinedModuleLateLintPass> as rustc_hir[14426e42d646ff74]::intravisit::Visitor>::visit_block
17: 0x7f25719d36b5 - <rustc_lint[e4cc92b56793eb0f]::late::LateContextAndPass<rustc_lint[e4cc92b56793eb0f]::BuiltinCombinedModuleLateLintPass> as rustc_hir[14426e42d646ff74]::intravisit::Visitor>::visit_nested_body
18: 0x7f25719ce02a - <rustc_lint[e4cc92b56793eb0f]::late::LateContextAndPass<rustc_lint[e4cc92b56793eb0f]::BuiltinCombinedModuleLateLintPass> as rustc_hir[14426e42d646ff74]::intravisit::Visitor>::visit_nested_item
19: 0x7f25719cb501 - rustc_lint[e4cc92b56793eb0f]::lint_mod
20: 0x7f25719cb09b - rustc_query_impl[8942b931e29865fa]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[8942b931e29865fa]::query_impl::lint_mod::dynamic_query::{closure#2}::{closure#0}, rustc_middle[c6a70c7efe2188b3]::query::erase::Erased<[u8; 0usize]>>
21: 0x7f25721ae232 - rustc_query_system[5cace19a6ee918a1]::query::plumbing::try_execute_query::<rustc_query_impl[8942b931e29865fa]::DynamicConfig<rustc_query_system[5cace19a6ee918a1]::query::caches::DefaultCache<rustc_span[f7aa459895f8c58d]::def_id::LocalModDefId, rustc_middle[c6a70c7efe2188b3]::query::erase::Erased<[u8; 0usize]>>, false, false, false>, rustc_query_impl[8942b931e29865fa]::plumbing::QueryCtxt, false>
22: 0x7f25721af64f - rustc_query_impl[8942b931e29865fa]::query_impl::lint_mod::get_query_non_incr::__rust_end_short_backtrace
23: 0x7f25721af1cf - rustc_lint[e4cc92b56793eb0f]::late::check_crate::{closure#1}
24: 0x7f25721aed3e - rustc_lint[e4cc92b56793eb0f]::late::check_crate
25: 0x7f257149ce44 - rustc_interface[708682e47b2b488f]::passes::analysis
26: 0x7f257149c5cb - rustc_query_impl[8942b931e29865fa]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[8942b931e29865fa]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[c6a70c7efe2188b3]::query::erase::Erased<[u8; 0usize]>>
27: 0x7f2572359f20 - rustc_query_system[5cace19a6ee918a1]::query::plumbing::try_execute_query::<rustc_query_impl[8942b931e29865fa]::DynamicConfig<rustc_query_system[5cace19a6ee918a1]::query::caches::SingleCache<rustc_middle[c6a70c7efe2188b3]::query::erase::Erased<[u8; 0usize]>>, false, false, false>, rustc_query_impl[8942b931e29865fa]::plumbing::QueryCtxt, false>
28: 0x7f2572359b76 - rustc_query_impl[8942b931e29865fa]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
29: 0x7f25725da263 - rustc_interface[708682e47b2b488f]::passes::create_and_enter_global_ctxt::<core[2d952c80041c40cd]::option::Option<rustc_interface[708682e47b2b488f]::queries::Linker>, rustc_driver_impl[35177e56b72f458e]::run_compiler::{closure#0}::{closure#2}>::{closure#2}::{closure#0}
30: 0x7f257251cdfe - rustc_interface[708682e47b2b488f]::interface::run_compiler::<(), rustc_driver_impl[35177e56b72f458e]::run_compiler::{closure#0}>::{closure#1}
31: 0x7f257241bf78 - std[8a15c92de76023c9]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[708682e47b2b488f]::util::run_in_thread_with_globals<rustc_interface[708682e47b2b488f]::util::run_in_thread_pool_with_globals<rustc_interface[708682e47b2b488f]::interface::run_compiler<(), rustc_driver_impl[35177e56b72f458e]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>
32: 0x7f257241bc5c - <<std[8a15c92de76023c9]::thread::Builder>::spawn_unchecked_<rustc_interface[708682e47b2b488f]::util::run_in_thread_with_globals<rustc_interface[708682e47b2b488f]::util::run_in_thread_pool_with_globals<rustc_interface[708682e47b2b488f]::interface::run_compiler<(), rustc_driver_impl[35177e56b72f458e]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[2d952c80041c40cd]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
33: 0x7f257242230d - std::sys::thread::unix::Thread::new::thread_start::hf97df16d27fd1393
34: 0x7f256ba978ee - start_thread
35: 0x7f256bb1b9bc - __GI___clone3
36: 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 make sure that you have updated to the latest nightly
note: please attach the file at `/var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-14-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/rustc-ice-2025-09-14T13_14_45-2443920.txt` to your bug report
note: compiler flags: --crate-type lib -C opt-level=3 -C embed-bitcode=no -C strip=debuginfo -Z force-unstable-if-unmarked
note: some of the compiler flags provided by cargo are hidden
query stack during panic:
#0 [lint_mod] linting module `mem::transmutability`
#1 [analysis] running analysis passes on this crate
end of query stack
error: could not compile `core` (lib)
Caused by:
process didn't exit successfully: `/var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-14-x86_64-unknown-linux-gnu/bin/rustc --crate-name core --edition=2024 /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-14-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi,artifacts,future-incompat --crate-type lib --emit=dep-info,metadata,link -C opt-level=3 -C embed-bitcode=no --warn=unexpected_cfgs --check-cfg 'cfg(no_fp_fmt_parse)' --check-cfg 'cfg(feature, values(any()))' --check-cfg 'cfg(target_has_reliable_f16)' --check-cfg 'cfg(target_has_reliable_f16_math)' --check-cfg 'cfg(target_has_reliable_f128)' --check-cfg 'cfg(target_has_reliable_f128_math)' --check-cfg 'cfg(docsrs,test)' --check-cfg 'cfg(feature, values("debug_refcell", "optimize_for_size", "panic_immediate_abort"))' -C metadata=3b1b74e317fcb97d -C extra-filename=-fc524c2ce02a0747 --out-dir /tmp/.tmpl3HX3i/target/powerpc64-ibm-aix/release/deps --target powerpc64-ibm-aix -C strip=debuginfo -Z force-unstable-if-unmarked -L dependency=/tmp/.tmpl3HX3i/target/powerpc64-ibm-aix/release/deps -L dependency=/tmp/.tmpl3HX3i/target/release/deps --cap-lints allow` (exit status: 101)