Build date: 2025-09-27T19:58:12.461Z
Build duration: 15.33s
Builder does-it-build commit: b213eec65d2e1b38
Compiling compiler_builtins v0.1.160 (/var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-27-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-2025-09-27-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core)
thread 'rustc' (61488) panicked at compiler/rustc_lint/src/types/improper_ctypes.rs:231:40:
$ident: found Item { owner_id: DefId(0:2220 ~ core[6ce9]::mem::transmutability::TransmuteFrom::transmute::Transmute), kind: Union(Transmute#0, Generics { params: [GenericParam { hir_id: HirId(DefId(0:2220 ~ core[6ce9]::mem::transmutability::TransmuteFrom::transmute::Transmute).1), def_id: DefId(0:2221 ~ core[6ce9]::mem::transmutability::TransmuteFrom::transmute::Transmute::Src), name: Plain(Src#0), span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-27-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:124:25: 124:28 (#0), pure_wrt_drop: false, kind: Type { default: None, synthetic: false }, colon_span: None, source: Generics }, GenericParam { hir_id: HirId(DefId(0:2220 ~ core[6ce9]::mem::transmutability::TransmuteFrom::transmute::Transmute).2), def_id: DefId(0:2222 ~ core[6ce9]::mem::transmutability::TransmuteFrom::transmute::Transmute::Dst), name: Plain(Dst#0), span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-27-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:124:30: 124:33 (#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-2025-09-27-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:124:34: 124:34 (#0), span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-27-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:124:24: 124:34 (#0) }, Struct { fields: [FieldDef { span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-27-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-2025-09-27-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:125:13: 125:13 (#0), ident: src#0, hir_id: HirId(DefId(0:2220 ~ core[6ce9]::mem::transmutability::TransmuteFrom::transmute::Transmute).7), def_id: DefId(0:2223 ~ core[6ce9]::mem::transmutability::TransmuteFrom::transmute::Transmute::src), ty: Ty { hir_id: HirId(DefId(0:2220 ~ core[6ce9]::mem::transmutability::TransmuteFrom::transmute::Transmute).3), span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-27-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-2025-09-27-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:125:18: 125:35 (#0), res: Def(Struct, DefId(0:27104 ~ core[6ce9]::mem::manually_drop::ManuallyDrop)), segments: [PathSegment { ident: ManuallyDrop#0, hir_id: HirId(DefId(0:2220 ~ core[6ce9]::mem::transmutability::TransmuteFrom::transmute::Transmute).6), res: Def(Struct, DefId(0:27104 ~ core[6ce9]::mem::manually_drop::ManuallyDrop)), args: Some(GenericArgs { args: [Type(Ty { hir_id: HirId(DefId(0:2220 ~ core[6ce9]::mem::transmutability::TransmuteFrom::transmute::Transmute).4), span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-27-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-2025-09-27-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:125:31: 125:34 (#0), res: Def(TyParam, DefId(0:2221 ~ core[6ce9]::mem::transmutability::TransmuteFrom::transmute::Transmute::Src)), segments: [PathSegment { ident: Src#0, hir_id: HirId(DefId(0:2220 ~ core[6ce9]::mem::transmutability::TransmuteFrom::transmute::Transmute).5), res: Def(TyParam, DefId(0:2221 ~ core[6ce9]::mem::transmutability::TransmuteFrom::transmute::Transmute::Src)), args: None, infer_args: false }] })) })], constraints: [], parenthesized: No, span_ext: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-27-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 }, FieldDef { span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-27-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:126:13: 126:35 (#0), vis_span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-27-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:126:13: 126:13 (#0), ident: dst#0, hir_id: HirId(DefId(0:2220 ~ core[6ce9]::mem::transmutability::TransmuteFrom::transmute::Transmute).12), def_id: DefId(0:2224 ~ core[6ce9]::mem::transmutability::TransmuteFrom::transmute::Transmute::dst), ty: Ty { hir_id: HirId(DefId(0:2220 ~ core[6ce9]::mem::transmutability::TransmuteFrom::transmute::Transmute).8), span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-27-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:126:18: 126:35 (#0), kind: Path(Resolved(None, Path { span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-27-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:126:18: 126:35 (#0), res: Def(Struct, DefId(0:27104 ~ core[6ce9]::mem::manually_drop::ManuallyDrop)), segments: [PathSegment { ident: ManuallyDrop#0, hir_id: HirId(DefId(0:2220 ~ core[6ce9]::mem::transmutability::TransmuteFrom::transmute::Transmute).11), res: Def(Struct, DefId(0:27104 ~ core[6ce9]::mem::manually_drop::ManuallyDrop)), args: Some(GenericArgs { args: [Type(Ty { hir_id: HirId(DefId(0:2220 ~ core[6ce9]::mem::transmutability::TransmuteFrom::transmute::Transmute).9), span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-27-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:126:31: 126:34 (#0), kind: Path(Resolved(None, Path { span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-27-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:126:31: 126:34 (#0), res: Def(TyParam, DefId(0:2222 ~ core[6ce9]::mem::transmutability::TransmuteFrom::transmute::Transmute::Dst)), segments: [PathSegment { ident: Dst#0, hir_id: HirId(DefId(0:2220 ~ core[6ce9]::mem::transmutability::TransmuteFrom::transmute::Transmute).10), res: Def(TyParam, DefId(0:2222 ~ core[6ce9]::mem::transmutability::TransmuteFrom::transmute::Transmute::Dst)), args: None, infer_args: false }] })) })], constraints: [], parenthesized: No, span_ext: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-27-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:126:30: 126:35 (#0) }), infer_args: false }] })) }, safety: Safe, default: None }], recovered: No }), span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-27-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:124:9: 127:10 (#0), vis_span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-27-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:124:9: 124:9 (#0), has_delayed_lints: false }
stack backtrace:
0: 0x7fc3bcbd5b13 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::he12ec06fd2a293a0
1: 0x7fc3bd202084 - core::fmt::write::ha606a923a7e9e6dc
2: 0x7fc3bcb8a291 - std::io::Write::write_fmt::h0465e1a0d34df1d8
3: 0x7fc3bcb9b892 - std::sys::backtrace::BacktraceLock::print::h2338c18ab65faa3a
4: 0x7fc3bcba17f9 - std::panicking::default_hook::{{closure}}::hd7f8c8c383b4ef15
5: 0x7fc3bcba1323 - std::panicking::default_hook::hd55a47c21442fb93
6: 0x7fc3bbbbf2c7 - std[c01491648260904f]::panicking::update_hook::<alloc[f55ce70957898bee]::boxed::Box<rustc_driver_impl[1bf2dbf0fe544018]::install_ice_hook::{closure#1}>>::{closure#0}
7: 0x7fc3bcba1c1f - std::panicking::panic_with_hook::hd5b47a5ca0eea9a8
8: 0x7fc3bcba19da - std::panicking::panic_handler::{{closure}}::h1b35e81073997feb
9: 0x7fc3bcb9b9c9 - std::sys::backtrace::__rust_end_short_backtrace::h3b29dd074c192a66
10: 0x7fc3bcb7c3fd - __rustc[ed3999a837685293]::rust_begin_unwind
11: 0x7fc3b9f25510 - core::panicking::panic_fmt::hb09df3119e5513d1
12: 0x7fc3bbc8e901 - rustc_hir[3e04fe711f3f5220]::hir::expect_failed::<&rustc_hir[3e04fe711f3f5220]::hir::Item>
13: 0x7fc3bbc907f2 - <rustc_hir[3e04fe711f3f5220]::hir::Item>::expect_struct
14: 0x7fc3bd8750d9 - <rustc_lint[e6d15ea57449c47c]::BuiltinCombinedModuleLateLintPass as rustc_lint[e6d15ea57449c47c]::passes::LateLintPass>::check_item
15: 0x7fc3bd8660d1 - <rustc_lint[e6d15ea57449c47c]::late::LateContextAndPass<rustc_lint[e6d15ea57449c47c]::BuiltinCombinedModuleLateLintPass> as rustc_hir[3e04fe711f3f5220]::intravisit::Visitor>::visit_nested_item
16: 0x7fc3bd85b2d6 - <rustc_lint[e6d15ea57449c47c]::late::LateContextAndPass<rustc_lint[e6d15ea57449c47c]::BuiltinCombinedModuleLateLintPass> as rustc_hir[3e04fe711f3f5220]::intravisit::Visitor>::visit_block
17: 0x7fc3bd86d649 - <rustc_lint[e6d15ea57449c47c]::late::LateContextAndPass<rustc_lint[e6d15ea57449c47c]::BuiltinCombinedModuleLateLintPass> as rustc_hir[3e04fe711f3f5220]::intravisit::Visitor>::visit_nested_body
18: 0x7fc3bd86713a - <rustc_lint[e6d15ea57449c47c]::late::LateContextAndPass<rustc_lint[e6d15ea57449c47c]::BuiltinCombinedModuleLateLintPass> as rustc_hir[3e04fe711f3f5220]::intravisit::Visitor>::visit_nested_item
19: 0x7fc3bd8682a5 - rustc_lint[e6d15ea57449c47c]::lint_mod
20: 0x7fc3bd867e21 - rustc_query_impl[461df29d55e73d6c]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[461df29d55e73d6c]::query_impl::lint_mod::dynamic_query::{closure#2}::{closure#0}, rustc_middle[1f3f92518c672622]::query::erase::Erased<[u8; 0usize]>>
21: 0x7fc3be1f2f31 - rustc_query_system[af46ebd0fa7450e4]::query::plumbing::try_execute_query::<rustc_query_impl[461df29d55e73d6c]::DynamicConfig<rustc_query_system[af46ebd0fa7450e4]::query::caches::DefaultCache<rustc_span[5e6a73ccfc35d5e2]::def_id::LocalModDefId, rustc_middle[1f3f92518c672622]::query::erase::Erased<[u8; 0usize]>>, false, false, false>, rustc_query_impl[461df29d55e73d6c]::plumbing::QueryCtxt, false>
22: 0x7fc3be1f434f - rustc_query_impl[461df29d55e73d6c]::query_impl::lint_mod::get_query_non_incr::__rust_end_short_backtrace
23: 0x7fc3be1f3ecf - rustc_lint[e6d15ea57449c47c]::late::check_crate::{closure#1}
24: 0x7fc3be1f3a3a - rustc_lint[e6d15ea57449c47c]::late::check_crate
25: 0x7fc3bd42fcf6 - rustc_interface[5deb4e4773f4a5c6]::passes::analysis
26: 0x7fc3bd42f46d - rustc_query_impl[461df29d55e73d6c]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[461df29d55e73d6c]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[1f3f92518c672622]::query::erase::Erased<[u8; 0usize]>>
27: 0x7fc3be1f175a - rustc_query_system[af46ebd0fa7450e4]::query::plumbing::try_execute_query::<rustc_query_impl[461df29d55e73d6c]::DynamicConfig<rustc_query_system[af46ebd0fa7450e4]::query::caches::SingleCache<rustc_middle[1f3f92518c672622]::query::erase::Erased<[u8; 0usize]>>, false, false, false>, rustc_query_impl[461df29d55e73d6c]::plumbing::QueryCtxt, false>
28: 0x7fc3be1f1390 - rustc_query_impl[461df29d55e73d6c]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
29: 0x7fc3be46e00f - rustc_interface[5deb4e4773f4a5c6]::passes::create_and_enter_global_ctxt::<core[54e0b712863b2159]::option::Option<rustc_interface[5deb4e4773f4a5c6]::queries::Linker>, rustc_driver_impl[1bf2dbf0fe544018]::run_compiler::{closure#0}::{closure#2}>::{closure#2}::{closure#0}
30: 0x7fc3be45fa22 - rustc_interface[5deb4e4773f4a5c6]::interface::run_compiler::<(), rustc_driver_impl[1bf2dbf0fe544018]::run_compiler::{closure#0}>::{closure#1}
31: 0x7fc3be371e78 - std[c01491648260904f]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[5deb4e4773f4a5c6]::util::run_in_thread_with_globals<rustc_interface[5deb4e4773f4a5c6]::util::run_in_thread_pool_with_globals<rustc_interface[5deb4e4773f4a5c6]::interface::run_compiler<(), rustc_driver_impl[1bf2dbf0fe544018]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>
32: 0x7fc3be371b5c - <<std[c01491648260904f]::thread::Builder>::spawn_unchecked_<rustc_interface[5deb4e4773f4a5c6]::util::run_in_thread_with_globals<rustc_interface[5deb4e4773f4a5c6]::util::run_in_thread_pool_with_globals<rustc_interface[5deb4e4773f4a5c6]::interface::run_compiler<(), rustc_driver_impl[1bf2dbf0fe544018]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[54e0b712863b2159]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
33: 0x7fc3be37790d - std::sys::thread::unix::Thread::new::thread_start::h0ec242fc72bb8ed6
34: 0x7fc3b7c978ee - start_thread
35: 0x7fc3b7d1b9bc - __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-2025-09-27-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/rustc-ice-2025-09-27T19_57_59-61486.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-2025-09-27-x86_64-unknown-linux-gnu/bin/rustc --crate-name core --edition=2024 /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-27-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/.tmpoKDpy3/target/powerpc64-ibm-aix/release/deps --target powerpc64-ibm-aix -C strip=debuginfo -Z force-unstable-if-unmarked -L dependency=/tmp/.tmpoKDpy3/target/powerpc64-ibm-aix/release/deps -L dependency=/tmp/.tmpoKDpy3/target/release/deps --cap-lints allow` (exit status: 101)