single-variant transparent structure with zero-sized field ICE

[chorman0773]

Code

I do not have a minimum reproduction yet. cargo build on this github repository with last night's nightly worked: https://github.com/LiliumOS/lilium-sys (LiliumOS/lilium-sys@cc45923).

Meta

rustc --version --verbose:

rustc 1.70.0-nightly (13afbdaa0 2023-03-17)
binary: rustc
commit-hash: 13afbdaa0655dda23d7129e59ac48f1ec88b2084
commit-date: 2023-03-17
host: x86_64-unknown-linux-gnu
release: 1.70.0-nightly
LLVM version: 15.0.7

Error output

Backtrace

thread 'rustc' panicked at 'single-variant transparent structure with zero-sized field', compiler/rustc_lint/src/builtin.rs:2798:34
stack backtrace:
   0:     0x7f6993d6739a - std::backtrace_rs::backtrace::libunwind::trace::h84d2711f38e4d049
                               at /rustc/13afbdaa0655dda23d7129e59ac48f1ec88b2084/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
   1:     0x7f6993d6739a - std::backtrace_rs::backtrace::trace_unsynchronized::h07f6ebc5344709db
                               at /rustc/13afbdaa0655dda23d7129e59ac48f1ec88b2084/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7f6993d6739a - std::sys_common::backtrace::_print_fmt::h05a29271ab24b307
                               at /rustc/13afbdaa0655dda23d7129e59ac48f1ec88b2084/library/std/src/sys_common/backtrace.rs:65:5
   3:     0x7f6993d6739a - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h2badcaa62266c6d2
                               at /rustc/13afbdaa0655dda23d7129e59ac48f1ec88b2084/library/std/src/sys_common/backtrace.rs:44:22
   4:     0x7f6993dca9be - core::fmt::write::h029bd029dcf67de1
                               at /rustc/13afbdaa0655dda23d7129e59ac48f1ec88b2084/library/core/src/fmt/mod.rs:1254:17
   5:     0x7f6993d5a225 - std::io::Write::write_fmt::h80e1934b9bd451b8
                               at /rustc/13afbdaa0655dda23d7129e59ac48f1ec88b2084/library/std/src/io/mod.rs:1684:15
   6:     0x7f6993d67165 - std::sys_common::backtrace::_print::hd15e10f9274c89b0
                               at /rustc/13afbdaa0655dda23d7129e59ac48f1ec88b2084/library/std/src/sys_common/backtrace.rs:47:5
   7:     0x7f6993d67165 - std::sys_common::backtrace::print::h170965e4e66b5ee4
                               at /rustc/13afbdaa0655dda23d7129e59ac48f1ec88b2084/library/std/src/sys_common/backtrace.rs:34:9
   8:     0x7f6993d69edf - std::panicking::default_hook::{{closure}}::h0164004bb09e0366
                               at /rustc/13afbdaa0655dda23d7129e59ac48f1ec88b2084/library/std/src/panicking.rs:271:22
   9:     0x7f6993d69c1b - std::panicking::default_hook::h5e2940911ec5582f
                               at /rustc/13afbdaa0655dda23d7129e59ac48f1ec88b2084/library/std/src/panicking.rs:290:9
  10:     0x7f6996ff2415 - rustc_driver_impl[bad2ed848d64dbdc]::DEFAULT_HOOK::{closure#0}::{closure#0}
  11:     0x7f6993d6a71d - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h0f3cc38fa49d6ba4
                               at /rustc/13afbdaa0655dda23d7129e59ac48f1ec88b2084/library/alloc/src/boxed.rs:2002:9
  12:     0x7f6993d6a71d - std::panicking::rust_panic_with_hook::h591d1df500c4db69
                               at /rustc/13afbdaa0655dda23d7129e59ac48f1ec88b2084/library/std/src/panicking.rs:696:13
  13:     0x7f6993d6a499 - std::panicking::begin_panic_handler::{{closure}}::h88c33edc8ad15aaa
                               at /rustc/13afbdaa0655dda23d7129e59ac48f1ec88b2084/library/std/src/panicking.rs:583:13
  14:     0x7f6993d67806 - std::sys_common::backtrace::__rust_end_short_backtrace::h8c0d0dd7ca5cd1b1
                               at /rustc/13afbdaa0655dda23d7129e59ac48f1ec88b2084/library/std/src/sys_common/backtrace.rs:150:18
  15:     0x7f6993d6a1a2 - rust_begin_unwind
                               at /rustc/13afbdaa0655dda23d7129e59ac48f1ec88b2084/library/std/src/panicking.rs:579:5
  16:     0x7f6993dc6d13 - core::panicking::panic_fmt::h4294102993ea4dab
                               at /rustc/13afbdaa0655dda23d7129e59ac48f1ec88b2084/library/core/src/panicking.rs:64:14
  17:     0x7f6993dc6e81 - core::panicking::panic_display::haeff71172f575d8d
                               at /rustc/13afbdaa0655dda23d7129e59ac48f1ec88b2084/library/core/src/panicking.rs:147:5
  18:     0x7f6993dc6e2b - core::panicking::panic_str::hb7aef33d628a91cf
                               at /rustc/13afbdaa0655dda23d7129e59ac48f1ec88b2084/library/core/src/panicking.rs:131:5
  19:     0x7f6993dc6a96 - core::option::expect_failed::h40fd8c6d5d394aa8
                               at /rustc/13afbdaa0655dda23d7129e59ac48f1ec88b2084/library/core/src/option.rs:2091:5
  20:     0x7f69967cc459 - <rustc_lint[962adbdcb387127b]::builtin::ClashingExternDeclarations>::structurally_same_type::structurally_same_type_impl
  21:     0x7f69967cc63f - <rustc_lint[962adbdcb387127b]::builtin::ClashingExternDeclarations>::structurally_same_type::structurally_same_type_impl
  22:     0x7f69967cc5f0 - <rustc_lint[962adbdcb387127b]::builtin::ClashingExternDeclarations>::structurally_same_type::structurally_same_type_impl
  23:     0x7f6995bfa0b7 - <rustc_lint[962adbdcb387127b]::builtin::ClashingExternDeclarations as rustc_lint[962adbdcb387127b]::passes::LateLintPass>::check_foreign_item
  24:     0x7f6995bf83f0 - <rustc_lint[962adbdcb387127b]::late::LateContextAndPass<rustc_lint[962adbdcb387127b]::BuiltinCombinedLateLintPass> as rustc_hir[f188a593009d666f]::intravisit::Visitor>::visit_nested_foreign_item
  25:     0x7f6995bf3d3c - rustc_hir[f188a593009d666f]::intravisit::walk_item::<rustc_lint[962adbdcb387127b]::late::LateContextAndPass<rustc_lint[962adbdcb387127b]::BuiltinCombinedLateLintPass>>
  26:     0x7f6995bf537a - <rustc_lint[962adbdcb387127b]::late::LateContextAndPass<rustc_lint[962adbdcb387127b]::BuiltinCombinedLateLintPass> as rustc_hir[f188a593009d666f]::intravisit::Visitor>::visit_nested_item
  27:     0x7f6995bf3f8d - rustc_hir[f188a593009d666f]::intravisit::walk_item::<rustc_lint[962adbdcb387127b]::late::LateContextAndPass<rustc_lint[962adbdcb387127b]::BuiltinCombinedLateLintPass>>
  28:     0x7f6995bf537a - <rustc_lint[962adbdcb387127b]::late::LateContextAndPass<rustc_lint[962adbdcb387127b]::BuiltinCombinedLateLintPass> as rustc_hir[f188a593009d666f]::intravisit::Visitor>::visit_nested_item
  29:     0x7f6995bf3f8d - rustc_hir[f188a593009d666f]::intravisit::walk_item::<rustc_lint[962adbdcb387127b]::late::LateContextAndPass<rustc_lint[962adbdcb387127b]::BuiltinCombinedLateLintPass>>
  30:     0x7f6995bf537a - <rustc_lint[962adbdcb387127b]::late::LateContextAndPass<rustc_lint[962adbdcb387127b]::BuiltinCombinedLateLintPass> as rustc_hir[f188a593009d666f]::intravisit::Visitor>::visit_nested_item
  31:     0x7f69966deaeb - rustc_lint[962adbdcb387127b]::late::late_lint_crate::<rustc_lint[962adbdcb387127b]::BuiltinCombinedLateLintPass>
  32:     0x7f69966de322 - <rustc_session[8656a7a78cf578e4]::session::Session>::time::<(), rustc_lint[962adbdcb387127b]::late::check_crate<rustc_lint[962adbdcb387127b]::BuiltinCombinedLateLintPass, rustc_interface[dde792dfc5bb5edd]::passes::analysis::{closure#6}::{closure#1}::{closure#2}::{closure#0}::{closure#0}>::{closure#0}::{closure#0}>
  33:     0x7f69966de182 - <rustc_session[8656a7a78cf578e4]::session::Session>::time::<(), rustc_interface[dde792dfc5bb5edd]::passes::analysis::{closure#6}::{closure#1}::{closure#2}::{closure#0}>
  34:     0x7f699660f5a8 - <core[9847d4a2e8a02df2]::panic::unwind_safe::AssertUnwindSafe<rustc_interface[dde792dfc5bb5edd]::passes::analysis::{closure#6}::{closure#1}> as core[9847d4a2e8a02df2]::ops::function::FnOnce<()>>::call_once
  35:     0x7f699534847b - <rustc_session[8656a7a78cf578e4]::session::Session>::time::<(), rustc_interface[dde792dfc5bb5edd]::passes::analysis::{closure#6}>
  36:     0x7f699534680a - rustc_interface[dde792dfc5bb5edd]::passes::analysis
  37:     0x7f6996811d0d - rustc_query_system[3b264ab6e948b942]::query::plumbing::try_execute_query::<rustc_query_impl[1cc93b35ef872c79]::queries::analysis, rustc_query_impl[1cc93b35ef872c79]::plumbing::QueryCtxt>
  38:     0x7f69968117e0 - <rustc_query_impl[1cc93b35ef872c79]::Queries as rustc_middle[eaf6378de1cdbfa8]::ty::query::QueryEngine>::analysis
  39:     0x7f699666e109 - <rustc_middle[eaf6378de1cdbfa8]::ty::context::GlobalCtxt>::enter::<rustc_driver_impl[bad2ed848d64dbdc]::run_compiler::{closure#1}::{closure#2}::{closure#4}, core[9847d4a2e8a02df2]::result::Result<(), rustc_span[4d522547309d7b79]::ErrorGuaranteed>>
  40:     0x7f69961f852d - <rustc_interface[dde792dfc5bb5edd]::interface::Compiler>::enter::<rustc_driver_impl[bad2ed848d64dbdc]::run_compiler::{closure#1}::{closure#2}, core[9847d4a2e8a02df2]::result::Result<core[9847d4a2e8a02df2]::option::Option<rustc_interface[dde792dfc5bb5edd]::queries::Linker>, rustc_span[4d522547309d7b79]::ErrorGuaranteed>>
  41:     0x7f69961f6630 - rustc_span[4d522547309d7b79]::with_source_map::<core[9847d4a2e8a02df2]::result::Result<(), rustc_span[4d522547309d7b79]::ErrorGuaranteed>, rustc_interface[dde792dfc5bb5edd]::interface::run_compiler<core[9847d4a2e8a02df2]::result::Result<(), rustc_span[4d522547309d7b79]::ErrorGuaranteed>, rustc_driver_impl[bad2ed848d64dbdc]::run_compiler::{closure#1}>::{closure#0}::{closure#0}>
  42:     0x7f69961f5bd9 - std[b4247acdb72724ff]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[dde792dfc5bb5edd]::util::run_in_thread_pool_with_globals<rustc_interface[dde792dfc5bb5edd]::interface::run_compiler<core[9847d4a2e8a02df2]::result::Result<(), rustc_span[4d522547309d7b79]::ErrorGuaranteed>, rustc_driver_impl[bad2ed848d64dbdc]::run_compiler::{closure#1}>::{closure#0}, core[9847d4a2e8a02df2]::result::Result<(), rustc_span[4d522547309d7b79]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[9847d4a2e8a02df2]::result::Result<(), rustc_span[4d522547309d7b79]::ErrorGuaranteed>>
  43:     0x7f69968e6afa - <<std[b4247acdb72724ff]::thread::Builder>::spawn_unchecked_<rustc_interface[dde792dfc5bb5edd]::util::run_in_thread_pool_with_globals<rustc_interface[dde792dfc5bb5edd]::interface::run_compiler<core[9847d4a2e8a02df2]::result::Result<(), rustc_span[4d522547309d7b79]::ErrorGuaranteed>, rustc_driver_impl[bad2ed848d64dbdc]::run_compiler::{closure#1}>::{closure#0}, core[9847d4a2e8a02df2]::result::Result<(), rustc_span[4d522547309d7b79]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[9847d4a2e8a02df2]::result::Result<(), rustc_span[4d522547309d7b79]::ErrorGuaranteed>>::{closure#1} as core[9847d4a2e8a02df2]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  44:     0x7f6993d745f3 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h51bca2043facf7d3
                               at /rustc/13afbdaa0655dda23d7129e59ac48f1ec88b2084/library/alloc/src/boxed.rs:1988:9
  45:     0x7f6993d745f3 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h365da710d54db7ab
                               at /rustc/13afbdaa0655dda23d7129e59ac48f1ec88b2084/library/alloc/src/boxed.rs:1988:9
  46:     0x7f6993d745f3 - std::sys::unix::thread::Thread::new::thread_start::hb322f3a535acf0fe
                               at /rustc/13afbdaa0655dda23d7129e59ac48f1ec88b2084/library/std/src/sys/unix/thread.rs:108:17
  47:     0x7f6993a90402 - start_thread
                               at ./nptl/./nptl/pthread_create.c:442:8
  48:     0x7f6993b1f590 - __GI___clone3
                               at ./misc/../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
  49:                0x0 - <unknown>

[Noratrieb]

pub mod with_trans {
    #[repr(transparent)]
    pub struct Handle(());

    extern "C" {
        /// Advances the enumeration list
        pub fn foreign(a: Handle);
    }
}

pub mod without_trans {
    pub struct Handle(());

    extern "C" {
        pub fn foreign(a: Handle);
    }
}

fn main() {}

[Noratrieb]

@rustbot label +E-easy +E-mentor
The crash occurs in the ClashingExternDeclarations lint. If you have further questions or need help, feel free to ask here or reach out to me on zulip.