Build date: 2025-09-24T06:42:47.359Z
Build duration: 14.118s
Builder does-it-build commit: b213eec65d2e1b38
Compiling compiler_builtins v0.1.160 (/var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-24-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-2025-09-24-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core)
thread 'rustc' (3827132) panicked at compiler/rustc_lint/src/types/improper_ctypes.rs:231:40:
$ident: found Item { owner_id: DefId(0:2220 ~ core[d54f]::mem::transmutability::TransmuteFrom::transmute::Transmute), kind: Union(Transmute#0, Generics { params: [GenericParam { hir_id: HirId(DefId(0:2220 ~ core[d54f]::mem::transmutability::TransmuteFrom::transmute::Transmute).1), def_id: DefId(0:2221 ~ core[d54f]::mem::transmutability::TransmuteFrom::transmute::Transmute::Src), name: Plain(Src#0), span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-24-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[d54f]::mem::transmutability::TransmuteFrom::transmute::Transmute).2), def_id: DefId(0:2222 ~ core[d54f]::mem::transmutability::TransmuteFrom::transmute::Transmute::Dst), name: Plain(Dst#0), span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-24-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-2025-09-24-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-2025-09-24-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-2025-09-24-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-2025-09-24-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[d54f]::mem::transmutability::TransmuteFrom::transmute::Transmute).7), def_id: DefId(0:2223 ~ core[d54f]::mem::transmutability::TransmuteFrom::transmute::Transmute::src), ty: Ty { hir_id: HirId(DefId(0:2220 ~ core[d54f]::mem::transmutability::TransmuteFrom::transmute::Transmute).3), span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-24-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-2025-09-24-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:125:18: 125:35 (#0), res: Def(Struct, DefId(0:27105 ~ core[d54f]::mem::manually_drop::ManuallyDrop)), segments: [PathSegment { ident: ManuallyDrop#0, hir_id: HirId(DefId(0:2220 ~ core[d54f]::mem::transmutability::TransmuteFrom::transmute::Transmute).6), res: Def(Struct, DefId(0:27105 ~ core[d54f]::mem::manually_drop::ManuallyDrop)), args: Some(GenericArgs { args: [Type(Ty { hir_id: HirId(DefId(0:2220 ~ core[d54f]::mem::transmutability::TransmuteFrom::transmute::Transmute).4), span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-24-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-2025-09-24-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[d54f]::mem::transmutability::TransmuteFrom::transmute::Transmute::Src)), segments: [PathSegment { ident: Src#0, hir_id: HirId(DefId(0:2220 ~ core[d54f]::mem::transmutability::TransmuteFrom::transmute::Transmute).5), res: Def(TyParam, DefId(0:2221 ~ core[d54f]::mem::transmutability::TransmuteFrom::transmute::Transmute::Src)), args: None, infer_args: false }] })) })], constraints: [], parenthesized: No, span_ext: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-24-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-2025-09-24-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-2025-09-24-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[d54f]::mem::transmutability::TransmuteFrom::transmute::Transmute).12), def_id: DefId(0:2224 ~ core[d54f]::mem::transmutability::TransmuteFrom::transmute::Transmute::dst), ty: Ty { hir_id: HirId(DefId(0:2220 ~ core[d54f]::mem::transmutability::TransmuteFrom::transmute::Transmute).8), span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-24-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-2025-09-24-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/mem/transmutability.rs:126:18: 126:35 (#0), res: Def(Struct, DefId(0:27105 ~ core[d54f]::mem::manually_drop::ManuallyDrop)), segments: [PathSegment { ident: ManuallyDrop#0, hir_id: HirId(DefId(0:2220 ~ core[d54f]::mem::transmutability::TransmuteFrom::transmute::Transmute).11), res: Def(Struct, DefId(0:27105 ~ core[d54f]::mem::manually_drop::ManuallyDrop)), args: Some(GenericArgs { args: [Type(Ty { hir_id: HirId(DefId(0:2220 ~ core[d54f]::mem::transmutability::TransmuteFrom::transmute::Transmute).9), span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-24-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-2025-09-24-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[d54f]::mem::transmutability::TransmuteFrom::transmute::Transmute::Dst)), segments: [PathSegment { ident: Dst#0, hir_id: HirId(DefId(0:2220 ~ core[d54f]::mem::transmutability::TransmuteFrom::transmute::Transmute).10), res: Def(TyParam, DefId(0:2222 ~ core[d54f]::mem::transmutability::TransmuteFrom::transmute::Transmute::Dst)), args: None, infer_args: false }] })) })], constraints: [], parenthesized: No, span_ext: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-24-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-2025-09-24-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-2025-09-24-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: 0x7fb82f1ca9a3 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h2c24ba22b15ad020
1: 0x7fb82f8020c4 - core::fmt::write::ha0578b3e6c8b99b6
2: 0x7fb82f17f221 - std::io::Write::write_fmt::hcf348f014262d1ff
3: 0x7fb82f190712 - std::sys::backtrace::BacktraceLock::print::h8e456dbdb994c38b
4: 0x7fb82f196679 - std::panicking::default_hook::{{closure}}::h64f1d8186e658d96
5: 0x7fb82f1961a3 - std::panicking::default_hook::h6d17ffce5af35fa5
6: 0x7fb82e1ba767 - std[314bb64956ffd393]::panicking::update_hook::<alloc[23296d48ff8db3a1]::boxed::Box<rustc_driver_impl[96a0148c0d126f43]::install_ice_hook::{closure#1}>>::{closure#0}
7: 0x7fb82f196a9f - std::panicking::panic_with_hook::h0b5317cebe6d9d53
8: 0x7fb82f19685a - std::panicking::panic_handler::{{closure}}::h5821916be113756e
9: 0x7fb82f190849 - std::sys::backtrace::__rust_end_short_backtrace::h4bd22a3505b02dba
10: 0x7fb82f17138d - __rustc[1a87e1016972703e]::rust_begin_unwind
11: 0x7fb82c1dedf0 - core::panicking::panic_fmt::hcdbeabdac38aaf1b
12: 0x7fb82e28a5a1 - rustc_hir[97a044ee2e526f7e]::hir::expect_failed::<&rustc_hir[97a044ee2e526f7e]::hir::Item>
13: 0x7fb82e28c492 - <rustc_hir[97a044ee2e526f7e]::hir::Item>::expect_struct
14: 0x7fb82fe2abbb - <rustc_lint[9518f428ea135029]::BuiltinCombinedModuleLateLintPass as rustc_lint[9518f428ea135029]::passes::LateLintPass>::check_item
15: 0x7fb82fe1c791 - <rustc_lint[9518f428ea135029]::late::LateContextAndPass<rustc_lint[9518f428ea135029]::BuiltinCombinedModuleLateLintPass> as rustc_hir[97a044ee2e526f7e]::intravisit::Visitor>::visit_nested_item
16: 0x7fb82fe11596 - <rustc_lint[9518f428ea135029]::late::LateContextAndPass<rustc_lint[9518f428ea135029]::BuiltinCombinedModuleLateLintPass> as rustc_hir[97a044ee2e526f7e]::intravisit::Visitor>::visit_block
17: 0x7fb82fe23d49 - <rustc_lint[9518f428ea135029]::late::LateContextAndPass<rustc_lint[9518f428ea135029]::BuiltinCombinedModuleLateLintPass> as rustc_hir[97a044ee2e526f7e]::intravisit::Visitor>::visit_nested_body
18: 0x7fb82fe1d7fa - <rustc_lint[9518f428ea135029]::late::LateContextAndPass<rustc_lint[9518f428ea135029]::BuiltinCombinedModuleLateLintPass> as rustc_hir[97a044ee2e526f7e]::intravisit::Visitor>::visit_nested_item
19: 0x7fb82fe1e976 - rustc_lint[9518f428ea135029]::lint_mod
20: 0x7fb82fe1e4e1 - rustc_query_impl[ef0537e75d947238]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[ef0537e75d947238]::query_impl::lint_mod::dynamic_query::{closure#2}::{closure#0}, rustc_middle[ab323f5f9794e614]::query::erase::Erased<[u8; 0usize]>>
21: 0x7fb83080b5b1 - rustc_query_system[9fde76ddb03bf57f]::query::plumbing::try_execute_query::<rustc_query_impl[ef0537e75d947238]::DynamicConfig<rustc_query_system[9fde76ddb03bf57f]::query::caches::DefaultCache<rustc_span[bdad3a6a77a28207]::def_id::LocalModDefId, rustc_middle[ab323f5f9794e614]::query::erase::Erased<[u8; 0usize]>>, false, false, false>, rustc_query_impl[ef0537e75d947238]::plumbing::QueryCtxt, false>
22: 0x7fb83080c9cf - rustc_query_impl[ef0537e75d947238]::query_impl::lint_mod::get_query_non_incr::__rust_end_short_backtrace
23: 0x7fb83080c54f - rustc_lint[9518f428ea135029]::late::check_crate::{closure#1}
24: 0x7fb83080c0ba - rustc_lint[9518f428ea135029]::late::check_crate
25: 0x7fb82fa04436 - rustc_interface[4e9e2a7b6fff9173]::passes::analysis
26: 0x7fb82fa03bad - rustc_query_impl[ef0537e75d947238]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[ef0537e75d947238]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[ab323f5f9794e614]::query::erase::Erased<[u8; 0usize]>>
27: 0x7fb830809dda - rustc_query_system[9fde76ddb03bf57f]::query::plumbing::try_execute_query::<rustc_query_impl[ef0537e75d947238]::DynamicConfig<rustc_query_system[9fde76ddb03bf57f]::query::caches::SingleCache<rustc_middle[ab323f5f9794e614]::query::erase::Erased<[u8; 0usize]>>, false, false, false>, rustc_query_impl[ef0537e75d947238]::plumbing::QueryCtxt, false>
28: 0x7fb830809ab6 - rustc_query_impl[ef0537e75d947238]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
29: 0x7fb830a9c20f - rustc_interface[4e9e2a7b6fff9173]::passes::create_and_enter_global_ctxt::<core[ca6cff44f28d0f08]::option::Option<rustc_interface[4e9e2a7b6fff9173]::queries::Linker>, rustc_driver_impl[96a0148c0d126f43]::run_compiler::{closure#0}::{closure#2}>::{closure#2}::{closure#0}
30: 0x7fb830a32cbe - rustc_interface[4e9e2a7b6fff9173]::interface::run_compiler::<(), rustc_driver_impl[96a0148c0d126f43]::run_compiler::{closure#0}>::{closure#1}
31: 0x7fb83098b538 - std[314bb64956ffd393]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[4e9e2a7b6fff9173]::util::run_in_thread_with_globals<rustc_interface[4e9e2a7b6fff9173]::util::run_in_thread_pool_with_globals<rustc_interface[4e9e2a7b6fff9173]::interface::run_compiler<(), rustc_driver_impl[96a0148c0d126f43]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>
32: 0x7fb83098b208 - <<std[314bb64956ffd393]::thread::Builder>::spawn_unchecked_<rustc_interface[4e9e2a7b6fff9173]::util::run_in_thread_with_globals<rustc_interface[4e9e2a7b6fff9173]::util::run_in_thread_pool_with_globals<rustc_interface[4e9e2a7b6fff9173]::interface::run_compiler<(), rustc_driver_impl[96a0148c0d126f43]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[ca6cff44f28d0f08]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
33: 0x7fb830990c4d - std::sys::thread::unix::Thread::new::thread_start::h3d82c4db230da5b2
34: 0x7fb82a2978ee - start_thread
35: 0x7fb82a31b9bc - __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-2025-09-24-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/rustc-ice-2025-09-24T06_42_35-3827130.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-2025-09-24-x86_64-unknown-linux-gnu/bin/rustc --crate-name core --edition=2024 /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-24-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/.tmpau7LLO/target/powerpc64-ibm-aix/release/deps --target powerpc64-ibm-aix -C strip=debuginfo -Z force-unstable-if-unmarked -L dependency=/tmp/.tmpau7LLO/target/powerpc64-ibm-aix/release/deps -L dependency=/tmp/.tmpau7LLO/target/release/deps --cap-lints allow` (exit status: 101)