ICE: failed while formatting fluent string passes_align_on_fields: #143987

error[E0412]: cannot find type `usize8` in this scope
 --> /tmp/icemaker_global_tempdir.tCI4asTIohWB/rustc_testrunner_tmpdir_reporting.mL7X4EToUuml/mvce.rs:3:8
  |
3 |     x: usize8,
  |        ^^^^^^ help: a builtin type with a similar name exists: `usize`

error[E0658]: the `#[align]` attribute is an experimental feature
 --> /tmp/icemaker_global_tempdir.tCI4asTIohWB/rustc_testrunner_tmpdir_reporting.mL7X4EToUuml/mvce.rs:2:5
  |
2 |     #[align(8)]
  |     ^^^^^^^^^^^
  |
  = note: see issue #82232 <https://github.com/rust-lang/rust/issues/82232> for more information
  = help: add `#![feature(fn_align)]` to the crate attributes to enable
  = note: this compiler was built on 2025-07-15; consider upgrading it if it is out of date

error[E0601]: `main` function not found in crate `mvce`
 --> /tmp/icemaker_global_tempdir.tCI4asTIohWB/rustc_testrunner_tmpdir_reporting.mL7X4EToUuml/mvce.rs:4:2
  |
4 | }
  |  ^ consider adding a `main` function to `/tmp/icemaker_global_tempdir.tCI4asTIohWB/rustc_testrunner_tmpdir_reporting.mL7X4EToUuml/mvce.rs`


thread 'rustc' panicked at compiler/rustc_errors/src/emitter.rs:3117:30:
called `Result::unwrap()` on an `Err` value: failed while formatting fluent string `passes_align_on_fields`: 
the attribute `label` was missing
help: add `.label = <message>`

stack backtrace:
   0:     0x788056df4b63 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h4af010e4b1354d4d
   1:     0x7880576029b7 - core::fmt::write::h17347e42c9203d6d
   2:     0x788056dea6f3 - std::io::Write::write_fmt::h05610498df74ae59
   3:     0x788056df49c2 - std::sys::backtrace::BacktraceLock::print::h0286e2cc1356b990
   4:     0x788056df8467 - std::panicking::default_hook::{{closure}}::hb566dc96699e42f6
   5:     0x788056df7fcb - std::panicking::default_hook::h1b340523e54d7d17
   6:     0x788055e8e6d3 - std[8431a5d67c83f301]::panicking::update_hook::<alloc[fc29ea6f01862dd9]::boxed::Box<rustc_driver_impl[fdd49284100304e4]::install_ice_hook::{closure#1}>>::{closure#0}
   7:     0x788056df8cae - std::panicking::rust_panic_with_hook::hceef4321c6f4ad8a
   8:     0x788056df89aa - std::panicking::begin_panic_handler::{{closure}}::hf9fd67a226c3bb3d
   9:     0x788056df5029 - std::sys::backtrace::__rust_end_short_backtrace::h52410ec1fdc70787
  10:     0x788056df868d - __rustc[507298ddafb0ef2f]::rust_begin_unwind
  11:     0x7880534f2930 - core::panicking::panic_fmt::hf04b323265684a46
  12:     0x7880535709c6 - core::result::unwrap_failed::hdf92484becbba54e
  13:     0x788058c0d166 - <rustc_errors[61709cc4d5caccb3]::emitter::FileWithAnnotatedLines>::collect_annotations
  14:     0x788058c101b0 - <rustc_errors[61709cc4d5caccb3]::emitter::HumanEmitter>::emit_messages_default_inner::{closure#0}
  15:     0x788058acca08 - <rustc_errors[61709cc4d5caccb3]::emitter::HumanEmitter as rustc_errors[61709cc4d5caccb3]::emitter::Emitter>::emit_diagnostic
  16:     0x788058ad46b7 - <rustc_errors[61709cc4d5caccb3]::DiagCtxtInner>::emit_diagnostic::{closure#3}
  17:     0x788058ad232e - rustc_interface[5c27d80bbf0205a9]::callbacks::track_diagnostic::<core[caebfb8306899321]::option::Option<rustc_span[f5894adb1c415d66]::ErrorGuaranteed>>
  18:     0x788058ad12fd - <rustc_errors[61709cc4d5caccb3]::DiagCtxtInner>::emit_diagnostic
  19:     0x788058ad11bf - <rustc_errors[61709cc4d5caccb3]::DiagCtxtHandle>::emit_diagnostic
  20:     0x788058ad1055 - <() as rustc_errors[61709cc4d5caccb3]::diagnostic::EmissionGuarantee>::emit_producing_guarantee
  21:     0x788057c80807 - rustc_middle[db85b62c91a80af6]::lint::lint_level::lint_level_impl
  22:     0x788057fdbde4 - <rustc_passes[24702fb08786ebe6]::check_attr::CheckAttrVisitor>::check_attributes
  23:     0x788057fd6310 - <rustc_passes[24702fb08786ebe6]::check_attr::CheckAttrVisitor as rustc_hir[536fe9fb45918b80]::intravisit::Visitor>::visit_item
  24:     0x788053eb72e8 - rustc_passes[24702fb08786ebe6]::check_attr::check_mod_attrs
  25:     0x78805848b3d9 - rustc_query_impl[da0a5435bd9c03d4]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[da0a5435bd9c03d4]::query_impl::check_mod_attrs::dynamic_query::{closure#2}::{closure#0}, rustc_middle[db85b62c91a80af6]::query::erase::Erased<[u8; 0usize]>>
  26:     0x78805848aeda - rustc_query_system[3aa0ab085113fb24]::query::plumbing::try_execute_query::<rustc_query_impl[da0a5435bd9c03d4]::DynamicConfig<rustc_query_system[3aa0ab085113fb24]::query::caches::DefaultCache<rustc_span[f5894adb1c415d66]::def_id::LocalModDefId, rustc_middle[db85b62c91a80af6]::query::erase::Erased<[u8; 0usize]>>, false, false, false>, rustc_query_impl[da0a5435bd9c03d4]::plumbing::QueryCtxt, false>
  27:     0x78805848ac8d - rustc_query_impl[da0a5435bd9c03d4]::query_impl::check_mod_attrs::get_query_non_incr::__rust_end_short_backtrace
  28:     0x78805848aa5b - <rustc_middle[db85b62c91a80af6]::ty::context::TyCtxt>::par_hir_for_each_module::<rustc_interface[5c27d80bbf0205a9]::passes::run_required_analyses::{closure#0}::{closure#0}::{closure#1}::{closure#0}>::{closure#0}
  29:     0x788057ffcecc - rustc_interface[5c27d80bbf0205a9]::passes::analysis
  30:     0x788057ffcbef - rustc_query_impl[da0a5435bd9c03d4]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[da0a5435bd9c03d4]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[db85b62c91a80af6]::query::erase::Erased<[u8; 0usize]>>
  31:     0x7880586acdbc - rustc_query_system[3aa0ab085113fb24]::query::plumbing::try_execute_query::<rustc_query_impl[da0a5435bd9c03d4]::DynamicConfig<rustc_query_system[3aa0ab085113fb24]::query::caches::SingleCache<rustc_middle[db85b62c91a80af6]::query::erase::Erased<[u8; 0usize]>>, false, false, false>, rustc_query_impl[da0a5435bd9c03d4]::plumbing::QueryCtxt, false>
  32:     0x7880586ac984 - rustc_query_impl[da0a5435bd9c03d4]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
  33:     0x78805890860b - rustc_interface[5c27d80bbf0205a9]::passes::create_and_enter_global_ctxt::<core[caebfb8306899321]::option::Option<rustc_interface[5c27d80bbf0205a9]::queries::Linker>, rustc_driver_impl[fdd49284100304e4]::run_compiler::{closure#0}::{closure#2}>::{closure#2}::{closure#0}
  34:     0x7880588f64d4 - rustc_interface[5c27d80bbf0205a9]::interface::run_compiler::<(), rustc_driver_impl[fdd49284100304e4]::run_compiler::{closure#0}>::{closure#1}
  35:     0x7880587c1538 - std[8431a5d67c83f301]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[5c27d80bbf0205a9]::util::run_in_thread_with_globals<rustc_interface[5c27d80bbf0205a9]::util::run_in_thread_pool_with_globals<rustc_interface[5c27d80bbf0205a9]::interface::run_compiler<(), rustc_driver_impl[fdd49284100304e4]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>
  36:     0x7880587c1216 - <<std[8431a5d67c83f301]::thread::Builder>::spawn_unchecked_<rustc_interface[5c27d80bbf0205a9]::util::run_in_thread_with_globals<rustc_interface[5c27d80bbf0205a9]::util::run_in_thread_pool_with_globals<rustc_interface[5c27d80bbf0205a9]::interface::run_compiler<(), rustc_driver_impl[fdd49284100304e4]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[caebfb8306899321]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  37:     0x7880587c733d - std::sys::pal::unix::thread::Thread::new::thread_start::hae446d0e444b0387
  38:     0x7880520a57eb - <unknown>
  39:     0x78805212918c - <unknown>
  40:                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: rustc 1.90.0-nightly (3014e79f9 2025-07-15) running on x86_64-unknown-linux-gnu

query stack during panic:
#0 [check_mod_attrs] checking attributes in top-level module
#1 [analysis] running analysis passes on this crate
end of query stack
error: aborting due to 3 previous errors; 1 warning emitted

Some errors have detailed explanations: E0412, E0601, E0658.
For more information about an error, try `rustc --explain E0412`.