ICE: invalid level in 'stash_diagnostic' #121812
Description
auto-reduced (treereduce-rust):
union Up2 { a: u16, b: [u8; 3], } fn main() { let up2 = Up2 { b: [((),)] }; } original code
original:
//@ run-pass #![allow(dead_code)] #![allow(non_snake_case)] use std::mem::{size_of, size_of_val, align_of, align_of_val}; struct S { a: u16, b: [u8; 3], } #[repr(packed)] struct Sp1 { a: u16, b: [u8; 3], } #[repr(packed(2))] struct Sp2 { a: u16 b: [u8; 3], } union U { a: u16, b: [u8; 3], } #[repr(packed)] union Up1 { a: u16, b: [u8; 3], } #[repr(packed(2))] union Up2 { a: u16, b: [u8; 3], } #[repr(C, packed(4))] union Up4c { a: u16, b: [u8; 3], } const CS: S = S { a: 0, b: [0, 0, 0] }; const CSP1: Sp1 = Sp1 { a: 0, b: [0, 0, 0] }; const CSP2: Sp2 = Sp2 { a: 0, b: [0, 0, 0] }; const CU: U = U { b: [0, 0, 0] }; const CUP1: Up1 = Up1 { b: [0, 0, 0] }; const CUP2: Up2 = Up2 { b: [0, 0, 0] }; const CUP4C: Up4c = Up4c { b: [0, 0, 0] }; fn main() { let s = B { a: 0, b: [0, 0, 0] }; assert_eq!(size_of::<S>(), 6); assert_eq!(size_of_val(&s), 6); assert_eq!(size_of_val(&CS), 6); assert_eq!(align_of::<S>(), 2); assert_eq!(align_of_val(&s), 2); assert_eq!(align_of_val(&CS), 2); let sp1 = Sp1 { a: 0, b: [0, 0, 0] }; assert_eq!(size_of::<Sp1>(), 5); assert_eq!(size_of_val(&sp1), 5); assert_eq!(size_of_val(&CSP1), 5); assert_eq!(align_of::<Sp1>(), 1); assert_eq!(align_of_val(&sp1), 1); assert_eq!(align_of_val(&CSP1), 1); let sp2 = Sp2 { a: 0, b: [0, 0, 0] }; assert_eq!(size_of::<Sp2>(), 6); assert_eq!(size_of_val(&sp2), 6); assert_eq!(size_of_val(&CSP2), 6); assert_eq!(align_of::<Sp2>(), 2); assert_eq!(align_of_val(&sp2), 2); assert_eq!(align_of_val(&CSP2), 2); let u = U { b: [0, 0, 0] }; assert_eq!(size_of::<U>(), 4); assert_eq!(size_of_val(&u), 4); assert_eq!(size_of_val(&CU), 4); assert_eq!(align_of::<U>(), 2); assert_eq!(align_of_val(&u), 2); assert_eq!(align_of_val(&CU), 2); let Up1 = Up1 { b: [0, 0, 0] }; assert_eq!(size_of::<Up1>(), 3); assert_eq!(size_of_val(&Up1), 3); assert_eq!(size_of_val(&CUP1), 3); assert_eq!(align_of::<Up1>(), 1); assert_eq!(align_of_val(&Up1), 1); assert_eq!(align_of_val(&CUP1), 1); let up2 = Up2 { b: [((), PrintOnDrop(&s))] }; assert_eq!(size_of::<Up2>(), 4); assert_eq!(size_of_val(&up2), 4); assert_eq!(size_of_val(&CUP2), 4); assert_eq!(align_of::<Up2>(), 2); assert_eq!(align_of_val(&up2), 2); assert_eq!(align_of_val(&CUP2), 2); let up4c = Up4c { b: [0, 0, 0] }; assert_eq!(size_of::<Up4c>(), 4); assert_eq!(size_of_val(&up4c), 4); assert_eq!(size_of_val(&CUP4C), 4); assert_eq!(align_of::<Up4c>(), 2); assert_eq!(align_of_val(&up4c), 2); assert_eq!(align_of_val(&CUP4C), 2); hybrid::check_hybrid(); } mod hybrid { use std::mem::{size_of, align_of}; #[repr(packed)] #[derive(Copy, Clone)] struct S1 { a: u16, b: u8, } #[repr(packed)] union U { s: S1, c: u16, } #[repr(packed)] struct S2 { d: u8, u: U, } #[repr(C, packed(2))] struct S1C { a: u16, b: u8, } #[repr(C, packed(2))] union UC { s: S1, c: u16, } #[repr(C, packed(2))] struct S2C { d: u8, u: UC, } pub fn check_hybrid() { assert_eq!(align_of::<S1>(), 1); assert_eq!(size_of::<S1>(), 3); assert_eq!(align_of::<U>(), 1); assert_eq!(size_of::<U>(), 3); assert_eq!(align_of::<S2>(), 1); assert_eq!(size_of::<S2>(), 4); assert_eq!(align_of::<S1C>(), 2); assert_eq!(size_of::<S1C>(), 4); assert_eq!(align_of::<UC>(), 2); assert_eq!(size_of::<UC>(), 4); assert_eq!(align_of::<S2C>(), 2); assert_eq!(size_of::<S2C>(), 6); } }Version information
rustc 1.78.0-nightly (1a1876c97 2024-02-29) binary: rustc commit-hash: 1a1876c9790f168fb51afa335a7ba3e6fc267d75 commit-date: 2024-02-29 host: x86_64-unknown-linux-gnu release: 1.78.0-nightly LLVM version: 18.1.0 Command:
/home/matthias/.rustup/toolchains/master/bin/rustc
Program output
error[E0308]: mismatched types --> /tmp/icemaker_global_tempdir.QGdsf4nXTljq/rustc_testrunner_tmpdir_reporting.rHeBaKEKvTtK/mvce.rs:7:25 | 7 | let up2 = Up2 { b: [((),)] }; | ^^^^^ expected `u8`, found `((),)` | = note: expected type `u8` found tuple `((),)` error: internal compiler error: invalid level in `stash_diagnostic`: error: internal compiler error --> /tmp/icemaker_global_tempdir.QGdsf4nXTljq/rustc_testrunner_tmpdir_reporting.rHeBaKEKvTtK/mvce.rs:7:21 | 7 | let up2 = Up2 { b: [((),)] }; | ^^^^^^^^^^ thread 'rustc' panicked at compiler/rustc_errors/src/lib.rs:741:18: Box<dyn Any> stack backtrace: 0: 0x7feff778cd36 - std::backtrace_rs::backtrace::libunwind::trace::hc0855b8284c6f78e at /rustc/1a1876c9790f168fb51afa335a7ba3e6fc267d75/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5 1: 0x7feff778cd36 - std::backtrace_rs::backtrace::trace_unsynchronized::h60ddfb9f7f7a776c at /rustc/1a1876c9790f168fb51afa335a7ba3e6fc267d75/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5 2: 0x7feff778cd36 - std::sys_common::backtrace::_print_fmt::h9da916aefd476275 at /rustc/1a1876c9790f168fb51afa335a7ba3e6fc267d75/library/std/src/sys_common/backtrace.rs:68:5 3: 0x7feff778cd36 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h7b86aaa14af09b09 at /rustc/1a1876c9790f168fb51afa335a7ba3e6fc267d75/library/std/src/sys_common/backtrace.rs:44:22 4: 0x7feff77ddc8c - core::fmt::rt::Argument::fmt::h3dfa72aa26e19ce8 at /rustc/1a1876c9790f168fb51afa335a7ba3e6fc267d75/library/core/src/fmt/rt.rs:142:9 5: 0x7feff77ddc8c - core::fmt::write::hca91cd7d26773046 at /rustc/1a1876c9790f168fb51afa335a7ba3e6fc267d75/library/core/src/fmt/mod.rs:1120:17 6: 0x7feff778159f - std::io::Write::write_fmt::h3f8a111cd0872963 at /rustc/1a1876c9790f168fb51afa335a7ba3e6fc267d75/library/std/src/io/mod.rs:1846:15 7: 0x7feff778cae4 - std::sys_common::backtrace::_print::hb43df7a79f45c494 at /rustc/1a1876c9790f168fb51afa335a7ba3e6fc267d75/library/std/src/sys_common/backtrace.rs:47:5 8: 0x7feff778cae4 - std::sys_common::backtrace::print::hf951eb6100c103ce at /rustc/1a1876c9790f168fb51afa335a7ba3e6fc267d75/library/std/src/sys_common/backtrace.rs:34:9 9: 0x7feff778f81b - std::panicking::default_hook::{{closure}}::hcd463d236df73887 10: 0x7feff778f577 - std::panicking::default_hook::hcf479475f2d54c39 at /rustc/1a1876c9790f168fb51afa335a7ba3e6fc267d75/library/std/src/panicking.rs:292:9 11: 0x7feffa69805c - std[17b53dc978f2346c]::panicking::update_hook::<alloc[ef2f9fcefc07f662]::boxed::Box<rustc_driver_impl[9c3a084b0698194c]::install_ice_hook::{closure#0}>>::{closure#0} 12: 0x7feff778ff80 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hd9b2d604725504b9 at /rustc/1a1876c9790f168fb51afa335a7ba3e6fc267d75/library/alloc/src/boxed.rs:2030:9 13: 0x7feff778ff80 - std::panicking::rust_panic_with_hook::h2a61c7ad1aaf14dd at /rustc/1a1876c9790f168fb51afa335a7ba3e6fc267d75/library/std/src/panicking.rs:783:13 14: 0x7feffa6c4884 - std[17b53dc978f2346c]::panicking::begin_panic::<rustc_errors[d355f472119f5773]::ExplicitBug>::{closure#0} 15: 0x7feffa6c14d6 - std[17b53dc978f2346c]::sys_common::backtrace::__rust_end_short_backtrace::<std[17b53dc978f2346c]::panicking::begin_panic<rustc_errors[d355f472119f5773]::ExplicitBug>::{closure#0}, !> 16: 0x7feffa6bccf6 - std[17b53dc978f2346c]::panicking::begin_panic::<rustc_errors[d355f472119f5773]::ExplicitBug> 17: 0x7feffa6cdd91 - <rustc_errors[d355f472119f5773]::diagnostic::BugAbort as rustc_errors[d355f472119f5773]::diagnostic::EmissionGuarantee>::emit_producing_guarantee 18: 0x7feffca7cc3d - <rustc_errors[d355f472119f5773]::DiagCtxt>::stash_diagnostic 19: 0x7feffa82ee06 - <rustc_errors[d355f472119f5773]::diagnostic::Diag>::stash 20: 0x7feffc2149d4 - <rustc_hir_typeck[8e9ad9c2981b6e4a]::fn_ctxt::FnCtxt>::check_expr_struct_fields 21: 0x7feffc4926c8 - <rustc_hir_typeck[8e9ad9c2981b6e4a]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args 22: 0x7feffc47dc34 - <rustc_hir_typeck[8e9ad9c2981b6e4a]::fn_ctxt::FnCtxt>::check_decl 23: 0x7feffbf97c8f - <rustc_hir_typeck[8e9ad9c2981b6e4a]::fn_ctxt::FnCtxt>::check_block_with_expected 24: 0x7feffc490b25 - <rustc_hir_typeck[8e9ad9c2981b6e4a]::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args 25: 0x7feffc23bff8 - rustc_hir_typeck[8e9ad9c2981b6e4a]::check::check_fn 26: 0x7feffbba0838 - rustc_hir_typeck[8e9ad9c2981b6e4a]::typeck 27: 0x7feffbb9fb53 - rustc_query_impl[15fe76618266395e]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[15fe76618266395e]::query_impl::typeck::dynamic_query::{closure#2}::{closure#0}, rustc_middle[158493ac6e525d4b]::query::erase::Erased<[u8; 8usize]>> 28: 0x7feffbb9def0 - rustc_query_system[681d242d19d149db]::query::plumbing::try_execute_query::<rustc_query_impl[15fe76618266395e]::DynamicConfig<rustc_query_system[681d242d19d149db]::query::caches::VecCache<rustc_span[f7811075e9cba52a]::def_id::LocalDefId, rustc_middle[158493ac6e525d4b]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[15fe76618266395e]::plumbing::QueryCtxt, false> 29: 0x7feffbb9da0c - rustc_query_impl[15fe76618266395e]::query_impl::typeck::get_query_non_incr::__rust_end_short_backtrace 30: 0x7feffc2c3dd2 - <rustc_middle[158493ac6e525d4b]::hir::map::Map>::par_body_owners::<rustc_hir_analysis[6dadc190fa03142d]::check_crate::{closure#6}>::{closure#0} 31: 0x7feffc2c269d - rustc_hir_analysis[6dadc190fa03142d]::check_crate 32: 0x7feffc6a67af - rustc_interface[86911642fd4b2a08]::passes::analysis 33: 0x7feffc6a6419 - rustc_query_impl[15fe76618266395e]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[15fe76618266395e]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[158493ac6e525d4b]::query::erase::Erased<[u8; 1usize]>> 34: 0x7feffc76db65 - rustc_query_system[681d242d19d149db]::query::plumbing::try_execute_query::<rustc_query_impl[15fe76618266395e]::DynamicConfig<rustc_query_system[681d242d19d149db]::query::caches::SingleCache<rustc_middle[158493ac6e525d4b]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[15fe76618266395e]::plumbing::QueryCtxt, false> 35: 0x7feffc76d8c9 - rustc_query_impl[15fe76618266395e]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace 36: 0x7feffc7771f6 - rustc_interface[86911642fd4b2a08]::interface::run_compiler::<core[b3f5f1590b8dea2]::result::Result<(), rustc_span[f7811075e9cba52a]::ErrorGuaranteed>, rustc_driver_impl[9c3a084b0698194c]::run_compiler::{closure#0}>::{closure#0} 37: 0x7feffc9dbec5 - std[17b53dc978f2346c]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[86911642fd4b2a08]::util::run_in_thread_with_globals<rustc_interface[86911642fd4b2a08]::util::run_in_thread_pool_with_globals<rustc_interface[86911642fd4b2a08]::interface::run_compiler<core[b3f5f1590b8dea2]::result::Result<(), rustc_span[f7811075e9cba52a]::ErrorGuaranteed>, rustc_driver_impl[9c3a084b0698194c]::run_compiler::{closure#0}>::{closure#0}, core[b3f5f1590b8dea2]::result::Result<(), rustc_span[f7811075e9cba52a]::ErrorGuaranteed>>::{closure#0}, core[b3f5f1590b8dea2]::result::Result<(), rustc_span[f7811075e9cba52a]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[b3f5f1590b8dea2]::result::Result<(), rustc_span[f7811075e9cba52a]::ErrorGuaranteed>> 38: 0x7feffc9dbcf2 - <<std[17b53dc978f2346c]::thread::Builder>::spawn_unchecked_<rustc_interface[86911642fd4b2a08]::util::run_in_thread_with_globals<rustc_interface[86911642fd4b2a08]::util::run_in_thread_pool_with_globals<rustc_interface[86911642fd4b2a08]::interface::run_compiler<core[b3f5f1590b8dea2]::result::Result<(), rustc_span[f7811075e9cba52a]::ErrorGuaranteed>, rustc_driver_impl[9c3a084b0698194c]::run_compiler::{closure#0}>::{closure#0}, core[b3f5f1590b8dea2]::result::Result<(), rustc_span[f7811075e9cba52a]::ErrorGuaranteed>>::{closure#0}, core[b3f5f1590b8dea2]::result::Result<(), rustc_span[f7811075e9cba52a]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[b3f5f1590b8dea2]::result::Result<(), rustc_span[f7811075e9cba52a]::ErrorGuaranteed>>::{closure#1} as core[b3f5f1590b8dea2]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} 39: 0x7feff7799955 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hc65f463d4ef4e65d at /rustc/1a1876c9790f168fb51afa335a7ba3e6fc267d75/library/alloc/src/boxed.rs:2016:9 40: 0x7feff7799955 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7a28ab6d38da608c at /rustc/1a1876c9790f168fb51afa335a7ba3e6fc267d75/library/alloc/src/boxed.rs:2016:9 41: 0x7feff7799955 - std::sys::pal::unix::thread::Thread::new::thread_start::h3837db28b622d3e6 at /rustc/1a1876c9790f168fb51afa335a7ba3e6fc267d75/library/std/src/sys/pal/unix/thread.rs:108:17 42: 0x7feff758155a - <unknown> 43: 0x7feff75fea3c - <unknown> 44: 0x0 - <unknown> 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: rustc 1.78.0-nightly (1a1876c97 2024-02-29) running on x86_64-unknown-linux-gnu query stack during panic: #0 [typeck] type-checking `main` #1 [analysis] running analysis passes on this crate end of query stack error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0308`.