Build date: 2025-09-20T16:41:47.228Z
Build duration: 13.792s
Builder does-it-build commit: b213eec65d2e1b38
Compiling compiler_builtins v0.1.160 (/var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-20-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-2025-09-20-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core)
thread 'rustc' (3280661) panicked at compiler/rustc_lint/src/types/improper_ctypes.rs:231:40:
$ident: found Item { owner_id: DefId(0:2220 ~ core[416f]::mem::transmutability::TransmuteFrom::transmute::Transmute), kind: Union(Transmute#0, Generics { params: [GenericParam { hir_id: HirId(DefId(0:2220 ~ core[416f]::mem::transmutability::TransmuteFrom::transmute::Transmute).1), def_id: DefId(0:2221 ~ core[416f]::mem::transmutability::TransmuteFrom::transmute::Transmute::Src), name: Plain(Src#0), span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-20-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[416f]::mem::transmutability::TransmuteFrom::transmute::Transmute).2), def_id: DefId(0:2222 ~ core[416f]::mem::transmutability::TransmuteFrom::transmute::Transmute::Dst), name: Plain(Dst#0), span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-20-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-2025-09-20-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-2025-09-20-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-2025-09-20-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-2025-09-20-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[416f]::mem::transmutability::TransmuteFrom::transmute::Transmute).7), def_id: DefId(0:2223 ~ core[416f]::mem::transmutability::TransmuteFrom::transmute::Transmute::src), ty: Ty { hir_id: HirId(DefId(0:2220 ~ core[416f]::mem::transmutability::TransmuteFrom::transmute::Transmute).3), span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-20-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-2025-09-20-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[416f]::mem::manually_drop::ManuallyDrop)), segments: [PathSegment { ident: ManuallyDrop#0, hir_id: HirId(DefId(0:2220 ~ core[416f]::mem::transmutability::TransmuteFrom::transmute::Transmute).6), res: Def(Struct, DefId(0:27105 ~ core[416f]::mem::manually_drop::ManuallyDrop)), args: Some(GenericArgs { args: [Type(Ty { hir_id: HirId(DefId(0:2220 ~ core[416f]::mem::transmutability::TransmuteFrom::transmute::Transmute).4), span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-20-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-2025-09-20-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[416f]::mem::transmutability::TransmuteFrom::transmute::Transmute::Src)), segments: [PathSegment { ident: Src#0, hir_id: HirId(DefId(0:2220 ~ core[416f]::mem::transmutability::TransmuteFrom::transmute::Transmute).5), res: Def(TyParam, DefId(0:2221 ~ core[416f]::mem::transmutability::TransmuteFrom::transmute::Transmute::Src)), args: None, infer_args: false }] })) })], constraints: [], parenthesized: No, span_ext: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-20-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-2025-09-20-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-2025-09-20-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[416f]::mem::transmutability::TransmuteFrom::transmute::Transmute).12), def_id: DefId(0:2224 ~ core[416f]::mem::transmutability::TransmuteFrom::transmute::Transmute::dst), ty: Ty { hir_id: HirId(DefId(0:2220 ~ core[416f]::mem::transmutability::TransmuteFrom::transmute::Transmute).8), span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-20-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-2025-09-20-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[416f]::mem::manually_drop::ManuallyDrop)), segments: [PathSegment { ident: ManuallyDrop#0, hir_id: HirId(DefId(0:2220 ~ core[416f]::mem::transmutability::TransmuteFrom::transmute::Transmute).11), res: Def(Struct, DefId(0:27105 ~ core[416f]::mem::manually_drop::ManuallyDrop)), args: Some(GenericArgs { args: [Type(Ty { hir_id: HirId(DefId(0:2220 ~ core[416f]::mem::transmutability::TransmuteFrom::transmute::Transmute).9), span: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-20-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-2025-09-20-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[416f]::mem::transmutability::TransmuteFrom::transmute::Transmute::Dst)), segments: [PathSegment { ident: Dst#0, hir_id: HirId(DefId(0:2220 ~ core[416f]::mem::transmutability::TransmuteFrom::transmute::Transmute).10), res: Def(TyParam, DefId(0:2222 ~ core[416f]::mem::transmutability::TransmuteFrom::transmute::Transmute::Dst)), args: None, infer_args: false }] })) })], constraints: [], parenthesized: No, span_ext: /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-20-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-2025-09-20-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-2025-09-20-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: 0x7f9e2ce02fa3 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hde6d85c382d527f2
1: 0x7f9e2d602044 - core::fmt::write::h973c9c8112009b0e
2: 0x7f9e2cdb7841 - std::io::Write::write_fmt::hc65527cc7fe187a1
3: 0x7f9e2cdc8d12 - std::sys::backtrace::BacktraceLock::print::h196ee37d98019ce7
4: 0x7f9e2cdcec79 - std::panicking::default_hook::{{closure}}::h7ada02a838a5e1a5
5: 0x7f9e2cdce7a3 - std::panicking::default_hook::h459a11f897437ace
6: 0x7f9e2bdf2fe7 - std[29b348e22af28835]::panicking::update_hook::<alloc[555d908d76a9abef]::boxed::Box<rustc_driver_impl[1529062cafbde98b]::install_ice_hook::{closure#1}>>::{closure#0}
7: 0x7f9e2cdcf09f - std::panicking::panic_with_hook::h7a26a9a92d00db16
8: 0x7f9e2cdcee5a - std::panicking::panic_handler::{{closure}}::hff503d4a03a809ee
9: 0x7f9e2cdc8e49 - std::sys::backtrace::__rust_end_short_backtrace::h5f7edfd0bb0961ac
10: 0x7f9e2cda987d - __rustc[ad4f885f90463905]::rust_begin_unwind
11: 0x7f9e29de6c30 - core::panicking::panic_fmt::hbddb862029e2fd41
12: 0x7f9e2bec2f21 - rustc_hir[facd9795f36e5eed]::hir::expect_failed::<&rustc_hir[facd9795f36e5eed]::hir::Item>
13: 0x7f9e2bec4c02 - <rustc_hir[facd9795f36e5eed]::hir::Item>::expect_struct
14: 0x7f9e2dbb7ef5 - <rustc_lint[7cea620058422435]::BuiltinCombinedModuleLateLintPass as rustc_lint[7cea620058422435]::passes::LateLintPass>::check_item
15: 0x7f9e2dba9e91 - <rustc_lint[7cea620058422435]::late::LateContextAndPass<rustc_lint[7cea620058422435]::BuiltinCombinedModuleLateLintPass> as rustc_hir[facd9795f36e5eed]::intravisit::Visitor>::visit_nested_item
16: 0x7f9e2db9ec56 - <rustc_lint[7cea620058422435]::late::LateContextAndPass<rustc_lint[7cea620058422435]::BuiltinCombinedModuleLateLintPass> as rustc_hir[facd9795f36e5eed]::intravisit::Visitor>::visit_block
17: 0x7f9e2dbb1389 - <rustc_lint[7cea620058422435]::late::LateContextAndPass<rustc_lint[7cea620058422435]::BuiltinCombinedModuleLateLintPass> as rustc_hir[facd9795f36e5eed]::intravisit::Visitor>::visit_nested_body
18: 0x7f9e2dbaaefa - <rustc_lint[7cea620058422435]::late::LateContextAndPass<rustc_lint[7cea620058422435]::BuiltinCombinedModuleLateLintPass> as rustc_hir[facd9795f36e5eed]::intravisit::Visitor>::visit_nested_item
19: 0x7f9e2dbac065 - rustc_lint[7cea620058422435]::lint_mod
20: 0x7f9e2dbabbe1 - rustc_query_impl[a7cdea08f0ded06b]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[a7cdea08f0ded06b]::query_impl::lint_mod::dynamic_query::{closure#2}::{closure#0}, rustc_middle[6caef81de86d4640]::query::erase::Erased<[u8; 0usize]>>
21: 0x7f9e2e5c11f1 - rustc_query_system[47ca2ca6c8f02330]::query::plumbing::try_execute_query::<rustc_query_impl[a7cdea08f0ded06b]::DynamicConfig<rustc_query_system[47ca2ca6c8f02330]::query::caches::DefaultCache<rustc_span[229c4c95ff7b5fb1]::def_id::LocalModDefId, rustc_middle[6caef81de86d4640]::query::erase::Erased<[u8; 0usize]>>, false, false, false>, rustc_query_impl[a7cdea08f0ded06b]::plumbing::QueryCtxt, false>
22: 0x7f9e2e5c260f - rustc_query_impl[a7cdea08f0ded06b]::query_impl::lint_mod::get_query_non_incr::__rust_end_short_backtrace
23: 0x7f9e2e5c218f - rustc_lint[7cea620058422435]::late::check_crate::{closure#1}
24: 0x7f9e2e5c1cfa - rustc_lint[7cea620058422435]::late::check_crate
25: 0x7f9e2d803336 - rustc_interface[c17bf8da99d73f51]::passes::analysis
26: 0x7f9e2d802aad - rustc_query_impl[a7cdea08f0ded06b]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[a7cdea08f0ded06b]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[6caef81de86d4640]::query::erase::Erased<[u8; 0usize]>>
27: 0x7f9e2e5bfa20 - rustc_query_system[47ca2ca6c8f02330]::query::plumbing::try_execute_query::<rustc_query_impl[a7cdea08f0ded06b]::DynamicConfig<rustc_query_system[47ca2ca6c8f02330]::query::caches::SingleCache<rustc_middle[6caef81de86d4640]::query::erase::Erased<[u8; 0usize]>>, false, false, false>, rustc_query_impl[a7cdea08f0ded06b]::plumbing::QueryCtxt, false>
28: 0x7f9e2e5bf676 - rustc_query_impl[a7cdea08f0ded06b]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
29: 0x7f9e2e9258cf - rustc_interface[c17bf8da99d73f51]::passes::create_and_enter_global_ctxt::<core[72b9ab10caddc3c7]::option::Option<rustc_interface[c17bf8da99d73f51]::queries::Linker>, rustc_driver_impl[1529062cafbde98b]::run_compiler::{closure#0}::{closure#2}>::{closure#2}::{closure#0}
30: 0x7f9e2e7e55fe - rustc_interface[c17bf8da99d73f51]::interface::run_compiler::<(), rustc_driver_impl[1529062cafbde98b]::run_compiler::{closure#0}>::{closure#1}
31: 0x7f9e2e7ae438 - std[29b348e22af28835]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[c17bf8da99d73f51]::util::run_in_thread_with_globals<rustc_interface[c17bf8da99d73f51]::util::run_in_thread_pool_with_globals<rustc_interface[c17bf8da99d73f51]::interface::run_compiler<(), rustc_driver_impl[1529062cafbde98b]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>
32: 0x7f9e2e7ae108 - <<std[29b348e22af28835]::thread::Builder>::spawn_unchecked_<rustc_interface[c17bf8da99d73f51]::util::run_in_thread_with_globals<rustc_interface[c17bf8da99d73f51]::util::run_in_thread_pool_with_globals<rustc_interface[c17bf8da99d73f51]::interface::run_compiler<(), rustc_driver_impl[1529062cafbde98b]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[72b9ab10caddc3c7]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
33: 0x7f9e2e7b420d - std::sys::thread::unix::Thread::new::thread_start::hbc2f8192574b804c
34: 0x7f9e27e978ee - start_thread
35: 0x7f9e27f1b9bc - __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-2025-09-20-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/rustc-ice-2025-09-20T16_41_35-3280659.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-2025-09-20-x86_64-unknown-linux-gnu/bin/rustc --crate-name core --edition=2024 /var/lib/does-it-build/.rustup/toolchains/nightly-2025-09-20-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/.tmppVbQ10/target/powerpc64-ibm-aix/release/deps --target powerpc64-ibm-aix -C strip=debuginfo -Z force-unstable-if-unmarked -L dependency=/tmp/.tmppVbQ10/target/powerpc64-ibm-aix/release/deps -L dependency=/tmp/.tmppVbQ10/target/release/deps --cap-lints allow` (exit status: 101)