Clippy crash

[Prabhuk]

Summary

While using the rust toolchain built from ToT main, we ran into this following crash in our project. We are trying to figure out how to bisect the compiler in the project environment. We know that this was a last known good commit: rust-lang/rust@a6acf0f The regression started sometime after it.

ERROR: /b/s/w/ir/x/w/co/pw_kernel/subsys/console/BUILD.bazel:64:13: Clippy //pw_kernel/subsys/console:colors failed: (Exit 101): process_wrapper failed: error executing Clippy command (from target //pw_kernel/subsys/console:colors) 
  (cd /home/swarming/.cache/bazel/_bazel_swarming/823a25200ba977576a072121498f22ec/sandbox/linux-sandbox/6010/execroot/_main && \
  exec env - \
    CARGO_CFG_TARGET_ARCH=x86_64 \
    CARGO_CFG_TARGET_OS=linux \
    CARGO_CRATE_NAME=colors \
    CARGO_MANIFEST_DIR='${pwd}/pw_kernel/subsys/console' \
    CARGO_PKG_AUTHORS='' \
    CARGO_PKG_DESCRIPTION='' \
    CARGO_PKG_HOMEPAGE='' \
    CARGO_PKG_NAME=colors \
    CARGO_PKG_VERSION=0.0.0 \
    CARGO_PKG_VERSION_MAJOR=0 \
    CARGO_PKG_VERSION_MINOR=0 \
    CARGO_PKG_VERSION_PATCH=0 \
    CARGO_PKG_VERSION_PRE='' \
    CLIPPY_CONF_DIR='${pwd}/external/rules_rust+/rust/settings' \
    PATH=/bin:/usr/bin:/usr/local/bin \
    REPOSITORY_NAME='' \
  bazel-out/k8-opt-exec/bin/external/rules_rust+/util/process_wrapper/process_wrapper --subst 'pwd=${pwd}' --touch-file bazel-out/k8-fastbuild/bin/pw_kernel/subsys/console/colors.clippy.ok -- bazel-out/k8-fastbuild/bin/external/+pw_rust+pw_rust_toolchains/host_rust_toolchain_linux_x86_64_stable_rust_toolchain/bin/clippy-driver pw_kernel/subsys/console/colors.rs '--crate-name=colors' '--crate-type=rlib' '--error-format=human' '--codegen=metadata=-654908717' '--codegen=extra-filename=-654908717' '--out-dir=bazel-out/k8-fastbuild/bin/pw_kernel/subsys/console' '--codegen=opt-level=s' '--codegen=debuginfo=0' '--codegen=strip=none' '--remap-path-prefix=${pwd}=.' '--emit=dep-info,metadata' '--color=always' '--target=x86_64-unknown-linux-gnu' --cfg 'feature="color"' -L bazel-out/k8-fastbuild/bin/external/+pw_rust+pw_rust_toolchains/host_rust_toolchain_linux_x86_64_stable_rust_toolchain/lib/rustlib/x86_64-unknown-linux-gnu/lib '--edition=2024' '-Cembed-bitcode=no' '--extern=pw_bytes=bazel-out/k8-fastbuild/bin/pw_bytes/rust/libpw_bytes-740683537.rlib' '--extern=pw_log_backend_api=bazel-out/k8-fastbuild/bin/pw_log/rust/libpw_log_backend_api-1782180497.rlib' '-Ldependency=bazel-out/k8-fastbuild/bin/pw_bytes/rust' '-Ldependency=bazel-out/k8-fastbuild/bin/pw_log/rust' '--sysroot=bazel-out/k8-fastbuild/bin/external/+pw_rust+pw_rust_toolchains/host_rust_toolchain_linux_x86_64_stable_rust_toolchain' -Dwarnings '-Zallow-features=core_intrinsics,error_generic_member_access,proc_macro_span,rustc_attrs' -Zemit-stack-sizes -Zmacro-backtrace -Dclippy::cast_lossless -Dclippy::cast_possible_truncation -Dclippy::cast_possible_wrap -Dclippy::cast_precision_loss -Dclippy::cast_sign_loss -Dclippy::char_lit_as_u8 -Dclippy::fn_to_numeric_cast -Dclippy::fn_to_numeric_cast_with_truncation -Dclippy::ptr_as_ptr -Dclippy::unnecessary_cast -Dinvalid_reference_casting -Dclippy::alloc_instead_of_core -Dclippy::as_underscore -Dclippy::assertions_on_result_states -Dclippy::correctness -Dclippy::dbg_macro -Dclippy::decimal_literal_representation -Dclippy::double_must_use -Dclippy::missing_safety_doc -Dclippy::must_use_candidate -Dclippy::must_use_unit -Dclippy::obfuscated_if_else -Dclippy::perf -Dclippy::return_self_not_must_use -Dclippy::std_instead_of_core -Dclippy::style -Dclippy::suspicious -Dclippy::unimplemented -Dclippy::unnested_or_patterns -Aclippy::new_without_default)
# Configuration: 0d3bdbf041e05cbb0159d3a980c4fef5ff5cccb3c49c64d3349d355fbbc2ffbd
# Execution platform: @@platforms//host:host

Use --sandbox_debug to see verbose messages from the sandbox and retain the sandbox build root for debugging
error: internal compiler error: compiler/rustc_middle/src/ty/typeck_results.rs:590:9: node HirId(DefId(0:21 ~ colors[355b]::log_level_tag::TOTAL_LEN#1).6) (expr ``) cannot be placed in TypeckResults with hir_owner DefId(0:16 ~ colors[355b]::log_level_tag)


thread 'rustc' (4) panicked at compiler/rustc_middle/src/ty/typeck_results.rs:590:9:
Box<dyn Any>
stack backtrace:
   0:     0x7fb55a8b235a - std[4165924747dd5da3]::backtrace_rs::backtrace::libunwind::trace
                               at /b/s/w/ir/x/w/rust-rust/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
   1:     0x7fb55a8b235a - std[4165924747dd5da3]::backtrace_rs::backtrace::trace_unsynchronized::<std[4165924747dd5da3]::sys::backtrace::_print_fmt::{closure#1}>
                               at /b/s/w/ir/x/w/rust-rust/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
   2:     0x7fb55a8b235a - std[4165924747dd5da3]::sys::backtrace::_print_fmt
                               at /b/s/w/ir/x/w/rust-rust/library/std/src/sys/backtrace.rs:74:9
   3:     0x7fb55a8b235a - <<std[4165924747dd5da3]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[e2c0e8b16f41e1ce]::fmt::Display>::fmt
                               at /b/s/w/ir/x/w/rust-rust/library/std/src/sys/backtrace.rs:44:26
   4:     0x7fb5550e39da - <core[e2c0e8b16f41e1ce]::fmt::rt::Argument>::fmt
                               at /b/s/w/ir/x/w/rust-rust/library/core/src/fmt/rt.rs:152:76
   5:     0x7fb5550e39da - core[e2c0e8b16f41e1ce]::fmt::write
   6:     0x7fb55a8c3e92 - std[4165924747dd5da3]::io::default_write_fmt::<std[4165924747dd5da3]::sys::stdio::unix::Stderr>
                               at /b/s/w/ir/x/w/rust-rust/library/std/src/io/mod.rs:639:11
   7:     0x7fb55a8c3e92 - <std[4165924747dd5da3]::sys::stdio::unix::Stderr as std[4165924747dd5da3]::io::Write>::write_fmt
                               at /b/s/w/ir/x/w/rust-rust/library/std/src/io/mod.rs:1994:13
   8:     0x7fb55a886faf - <std[4165924747dd5da3]::sys::backtrace::BacktraceLock>::print
                               at /b/s/w/ir/x/w/rust-rust/library/std/src/sys/backtrace.rs:47:9
   9:     0x7fb55a886faf - std[4165924747dd5da3]::panicking::default_hook::{closure#0}
                               at /b/s/w/ir/x/w/rust-rust/library/std/src/panicking.rs:292:27
  10:     0x7fb55a8a5f21 - std[4165924747dd5da3]::panicking::default_hook
                               at /b/s/w/ir/x/w/rust-rust/library/std/src/panicking.rs:319:9
  11:     0x7fb555c3b13e - std[4165924747dd5da3]::panicking::update_hook::<alloc[fd7fbd8095df3dc7]::boxed::Box<rustc_driver_impl[ddf758acac62c8c2]::install_ice_hook::{closure#1}>>::{closure#0}
  12:     0x7fb55a8a61c2 - <alloc[fd7fbd8095df3dc7]::boxed::Box<dyn for<'a, 'b> core[e2c0e8b16f41e1ce]::ops::function::Fn<(&'a std[4165924747dd5da3]::panic::PanicHookInfo<'b>,), Output = ()> + core[e2c0e8b16f41e1ce]::marker::Sync + core[e2c0e8b16f41e1ce]::marker::Send> as core[e2c0e8b16f41e1ce]::ops::function::Fn<(&std[4165924747dd5da3]::panic::PanicHookInfo,)>>::call
                               at /b/s/w/ir/x/w/rust-rust/library/alloc/src/boxed.rs:2220:9
  13:     0x7fb55a8a61c2 - std[4165924747dd5da3]::panicking::panic_with_hook
                               at /b/s/w/ir/x/w/rust-rust/library/std/src/panicking.rs:833:13
  14:     0x7fb55a551371 - std[4165924747dd5da3]::panicking::begin_panic::<rustc_errors[d6a8ce7f46b6c62a]::ExplicitBug>::{closure#0}
  15:     0x7fb55a547796 - std[4165924747dd5da3]::sys::backtrace::__rust_end_short_backtrace::<std[4165924747dd5da3]::panicking::begin_panic<rustc_errors[d6a8ce7f46b6c62a]::ExplicitBug>::{closure#0}, !>
  16:     0x7fb55a543763 - std[4165924747dd5da3]::panicking::begin_panic::<rustc_errors[d6a8ce7f46b6c62a]::ExplicitBug>
  17:     0x7fb55a561e72 - <rustc_errors[d6a8ce7f46b6c62a]::diagnostic::BugAbort as rustc_errors[d6a8ce7f46b6c62a]::diagnostic::EmissionGuarantee>::emit_producing_guarantee
  18:     0x7fb55a3eaa8a - rustc_middle[3447af34bd658b27]::util::bug::opt_span_bug_fmt::<rustc_span[42cd217a251118e2]::span_encoding::Span>::{closure#0}
  19:     0x7fb55a3eac72 - rustc_middle[3447af34bd658b27]::ty::context::tls::with_opt::<rustc_middle[3447af34bd658b27]::util::bug::opt_span_bug_fmt<rustc_span[42cd217a251118e2]::span_encoding::Span>::{closure#0}, !>::{closure#0}
  20:     0x7fb55a3ce3fb - rustc_middle[3447af34bd658b27]::ty::context::tls::with_context_opt::<rustc_middle[3447af34bd658b27]::ty::context::tls::with_opt<rustc_middle[3447af34bd658b27]::util::bug::opt_span_bug_fmt<rustc_span[42cd217a251118e2]::span_encoding::Span>::{closure#0}, !>::{closure#0}, !>
  21:     0x7fb5558df024 - rustc_middle[3447af34bd658b27]::util::bug::bug_fmt
  22:     0x7fb55a3ebaa5 - rustc_middle[3447af34bd658b27]::ty::typeck_results::invalid_hir_id_for_typeck_results::{closure#0}
  23:     0x7fb55a3eab06 - rustc_middle[3447af34bd658b27]::ty::context::tls::with::<rustc_middle[3447af34bd658b27]::ty::typeck_results::invalid_hir_id_for_typeck_results::{closure#0}, !>::{closure#0}
  24:     0x7fb55a3eaadf - rustc_middle[3447af34bd658b27]::ty::context::tls::with_context::<rustc_middle[3447af34bd658b27]::ty::context::tls::with<rustc_middle[3447af34bd658b27]::ty::typeck_results::invalid_hir_id_for_typeck_results::{closure#0}, !>::{closure#0}, !>::{closure#0}
  25:     0x7fb55a3ce02f - rustc_middle[3447af34bd658b27]::ty::context::tls::with_context_opt::<rustc_middle[3447af34bd658b27]::ty::context::tls::with_context<rustc_middle[3447af34bd658b27]::ty::context::tls::with<rustc_middle[3447af34bd658b27]::ty::typeck_results::invalid_hir_id_for_typeck_results::{closure#0}, !>::{closure#0}, !>::{closure#0}, !>
  26:     0x7fb55a3ce406 - rustc_middle[3447af34bd658b27]::ty::context::tls::with::<rustc_middle[3447af34bd658b27]::ty::typeck_results::invalid_hir_id_for_typeck_results::{closure#0}, !>
  27:     0x7fb55a438604 - rustc_middle[3447af34bd658b27]::ty::typeck_results::invalid_hir_id_for_typeck_results
  28:     0x7fb5558b75dc - <rustc_middle[3447af34bd658b27]::ty::typeck_results::TypeckResults>::expr_ty_adjusted
  29:     0x55eb364a0314 - clippy_utils[1b150a252c4ee57c]::hir_utils::swap_binop
  30:     0x55eb3647dd44 - <clippy_utils[1b150a252c4ee57c]::hir_utils::HirEqInterExpr>::eq_expr
  31:     0x55eb3647dcef - <clippy_utils[1b150a252c4ee57c]::hir_utils::HirEqInterExpr>::eq_expr
  32:     0x55eb3647dcef - <clippy_utils[1b150a252c4ee57c]::hir_utils::HirEqInterExpr>::eq_expr
  33:     0x55eb3647d37b - <clippy_utils[1b150a252c4ee57c]::hir_utils::HirEqInterExpr>::eq_body
  34:     0x55eb3647e80b - <clippy_utils[1b150a252c4ee57c]::hir_utils::HirEqInterExpr>::eq_item
  35:     0x55eb3647f46a - <clippy_utils[1b150a252c4ee57c]::hir_utils::HirEqInterExpr>::eq_block
  36:     0x55eb3647dc20 - <clippy_utils[1b150a252c4ee57c]::hir_utils::HirEqInterExpr>::eq_expr
  37:     0x55eb3647da08 - <clippy_utils[1b150a252c4ee57c]::hir_utils::HirEqInterExpr>::eq_expr
  38:     0x55eb3647fc18 - <clippy_utils[1b150a252c4ee57c]::hir_utils::HirEqInterExpr>::eq_block
  39:     0x55eb3647dc20 - <clippy_utils[1b150a252c4ee57c]::hir_utils::HirEqInterExpr>::eq_expr
  40:     0x55eb3647fc18 - <clippy_utils[1b150a252c4ee57c]::hir_utils::HirEqInterExpr>::eq_block
  41:     0x55eb3647dc20 - <clippy_utils[1b150a252c4ee57c]::hir_utils::HirEqInterExpr>::eq_expr
  42:     0x55eb36448176 - <clippy_utils[1b150a252c4ee57c]::hir_utils::SpanlessEq>::eq_expr
  43:     0x55eb35f613c2 - clippy_lints[8d20be88b0439655]::matches::match_same_arms::check::{closure#4}::{closure#0}
  44:     0x55eb36090196 - clippy_lints[8d20be88b0439655]::matches::match_same_arms::check
  45:     0x55eb361feae2 - <clippy_lints[8d20be88b0439655]::matches::Matches as rustc_lint[6e083a5465008ce5]::passes::LateLintPass>::check_expr
  46:     0x7fb5599714f0 - <rustc_lint[6e083a5465008ce5]::late::LateContextAndPass<rustc_lint[6e083a5465008ce5]::late::RuntimeCombinedLateLintPass> as rustc_hir[28e393cceebdd186]::intravisit::Visitor>::visit_expr::{closure#0}::{closure#0}
  47:     0x7fb559a0aa86 - <rustc_lint[6e083a5465008ce5]::late::LateContextAndPass<rustc_lint[6e083a5465008ce5]::late::RuntimeCombinedLateLintPass> as rustc_hir[28e393cceebdd186]::intravisit::Visitor>::visit_expr
  48:     0x7fb559a0afde - <rustc_lint[6e083a5465008ce5]::late::LateContextAndPass<rustc_lint[6e083a5465008ce5]::late::RuntimeCombinedLateLintPass> as rustc_hir[28e393cceebdd186]::intravisit::Visitor>::visit_block
  49:     0x7fb559971944 - <rustc_lint[6e083a5465008ce5]::late::LateContextAndPass<rustc_lint[6e083a5465008ce5]::late::RuntimeCombinedLateLintPass> as rustc_hir[28e393cceebdd186]::intravisit::Visitor>::visit_expr::{closure#0}::{closure#0}
  50:     0x7fb559a0aa86 - <rustc_lint[6e083a5465008ce5]::late::LateContextAndPass<rustc_lint[6e083a5465008ce5]::late::RuntimeCombinedLateLintPass> as rustc_hir[28e393cceebdd186]::intravisit::Visitor>::visit_expr
  51:     0x7fb559971722 - <rustc_lint[6e083a5465008ce5]::late::LateContextAndPass<rustc_lint[6e083a5465008ce5]::late::RuntimeCombinedLateLintPass> as rustc_hir[28e393cceebdd186]::intravisit::Visitor>::visit_expr::{closure#0}::{closure#0}
  52:     0x7fb559a0aa86 - <rustc_lint[6e083a5465008ce5]::late::LateContextAndPass<rustc_lint[6e083a5465008ce5]::late::RuntimeCombinedLateLintPass> as rustc_hir[28e393cceebdd186]::intravisit::Visitor>::visit_expr
  53:     0x7fb559a0afde - <rustc_lint[6e083a5465008ce5]::late::LateContextAndPass<rustc_lint[6e083a5465008ce5]::late::RuntimeCombinedLateLintPass> as rustc_hir[28e393cceebdd186]::intravisit::Visitor>::visit_block
  54:     0x7fb559971944 - <rustc_lint[6e083a5465008ce5]::late::LateContextAndPass<rustc_lint[6e083a5465008ce5]::late::RuntimeCombinedLateLintPass> as rustc_hir[28e393cceebdd186]::intravisit::Visitor>::visit_expr::{closure#0}::{closure#0}
  55:     0x7fb559a0aa86 - <rustc_lint[6e083a5465008ce5]::late::LateContextAndPass<rustc_lint[6e083a5465008ce5]::late::RuntimeCombinedLateLintPass> as rustc_hir[28e393cceebdd186]::intravisit::Visitor>::visit_expr
  56:     0x7fb559a0b262 - <rustc_lint[6e083a5465008ce5]::late::LateContextAndPass<rustc_lint[6e083a5465008ce5]::late::RuntimeCombinedLateLintPass> as rustc_hir[28e393cceebdd186]::intravisit::Visitor>::visit_nested_body
  57:     0x7fb559a0b8af - <rustc_lint[6e083a5465008ce5]::late::LateContextAndPass<rustc_lint[6e083a5465008ce5]::late::RuntimeCombinedLateLintPass> as rustc_hir[28e393cceebdd186]::intravisit::Visitor>::visit_fn
  58:     0x7fb559a21e81 - <rustc_lint[6e083a5465008ce5]::late::LateContextAndPass<rustc_lint[6e083a5465008ce5]::late::RuntimeCombinedLateLintPass> as rustc_hir[28e393cceebdd186]::intravisit::Visitor>::visit_nested_item
  59:     0x7fb55997d6f9 - <rustc_lint[6e083a5465008ce5]::late::LateContextAndPass<rustc_lint[6e083a5465008ce5]::late::RuntimeCombinedLateLintPass>>::process_mod
  60:     0x7fb55555c190 - rustc_lint[6e083a5465008ce5]::late::check_crate::{closure#0}
  61:     0x7fb55555b79d - rustc_lint[6e083a5465008ce5]::late::check_crate
  62:     0x7fb555555746 - rustc_interface[dd0891d966d996b]::passes::analysis
  63:     0x7fb5552ff527 - rustc_query_impl[8ae5f7929135a018]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[8ae5f7929135a018]::query_impl::analysis::make_query_vtable::{closure#2}::{closure#0}, rustc_middle[3447af34bd658b27]::query::erase::ErasedData<[u8; 0usize]>>
  64:     0x7fb5552fecac - rustc_query_system[96087c8512dec429]::query::plumbing::try_execute_query::<rustc_query_impl[8ae5f7929135a018]::SemiDynamicQueryDispatcher<rustc_query_system[96087c8512dec429]::query::caches::SingleCache<rustc_middle[3447af34bd658b27]::query::erase::ErasedData<[u8; 0usize]>>, false, false, false>, false>
  65:     0x7fb5552fe6e9 - rustc_query_impl[8ae5f7929135a018]::query_impl::analysis::get_query_non_incr::__rust_end_short_backtrace
  66:     0x7fb555a93c87 - <rustc_interface[dd0891d966d996b]::passes::create_and_enter_global_ctxt<core[e2c0e8b16f41e1ce]::option::Option<rustc_interface[dd0891d966d996b]::queries::Linker>, rustc_driver_impl[ddf758acac62c8c2]::run_compiler::{closure#0}::{closure#2}>::{closure#2} as core[e2c0e8b16f41e1ce]::ops::function::FnOnce<(&rustc_session[d72b65fa360499f0]::session::Session, rustc_middle[3447af34bd658b27]::ty::context::CurrentGcx, alloc[fd7fbd8095df3dc7]::sync::Arc<rustc_data_structures[8ae546b7f8adb480]::jobserver::Proxy>, &std[4165924747dd5da3]::sync::once_lock::OnceLock<rustc_middle[3447af34bd658b27]::ty::context::GlobalCtxt>, &rustc_data_structures[8ae546b7f8adb480]::sync::worker_local::WorkerLocal<rustc_middle[3447af34bd658b27]::arena::Arena>, &rustc_data_structures[8ae546b7f8adb480]::sync::worker_local::WorkerLocal<rustc_hir[28e393cceebdd186]::Arena>, rustc_driver_impl[ddf758acac62c8c2]::run_compiler::{closure#0}::{closure#2})>>::call_once::{shim:vtable#0}
  67:     0x7fb5550d8e7c - rustc_interface[dd0891d966d996b]::interface::run_compiler::<(), rustc_driver_impl[ddf758acac62c8c2]::run_compiler::{closure#0}>::{closure#1}
  68:     0x7fb555462df9 - std[4165924747dd5da3]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[dd0891d966d996b]::util::run_in_thread_with_globals<rustc_interface[dd0891d966d996b]::util::run_in_thread_pool_with_globals<rustc_interface[dd0891d966d996b]::interface::run_compiler<(), rustc_driver_impl[ddf758acac62c8c2]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>
  69:     0x7fb555462b82 - <std[4165924747dd5da3]::thread::lifecycle::spawn_unchecked<rustc_interface[dd0891d966d996b]::util::run_in_thread_with_globals<rustc_interface[dd0891d966d996b]::util::run_in_thread_pool_with_globals<rustc_interface[dd0891d966d996b]::interface::run_compiler<(), rustc_driver_impl[ddf758acac62c8c2]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[e2c0e8b16f41e1ce]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  70:     0x7fb55a8aff4f - <alloc[fd7fbd8095df3dc7]::boxed::Box<dyn core[e2c0e8b16f41e1ce]::ops::function::FnOnce<(), Output = ()> + core[e2c0e8b16f41e1ce]::marker::Send> as core[e2c0e8b16f41e1ce]::ops::function::FnOnce<()>>::call_once
                               at /b/s/w/ir/x/w/rust-rust/library/alloc/src/boxed.rs:2206:9
  71:     0x7fb55a8aff4f - <std[4165924747dd5da3]::sys::thread::unix::Thread>::new::thread_start
                               at /b/s/w/ir/x/w/rust-rust/library/std/src/sys/thread/unix.rs:127:17
  72:     0x7fb551ea71f5 - <unknown>
  73:     0x7fb551f278dc - <unknown>

note: we would appreciate a bug report: https://github.com/rust-lang/rust-clippy/issues/new?template=ice.yml

note: please make sure that you have updated to the latest nightly

note: please attach the file at `/home/swarming/.cache/bazel/_bazel_swarming/823a25200ba977576a072121498f22ec/sandbox/linux-sandbox/6010/execroot/_main/rustc-ice-2026-01-30T18_14_51-3.txt` to your bug report

note: rustc 1.95.0-nightly (7d8ebe312 2026-01-30) running on x86_64-unknown-linux-gnu

note: compiler flags: --crate-type rlib -C embed-bitcode=no -Z allow-features=core_intrinsics,error_generic_member_access,proc_macro_span,rustc_attrs -Z emit-stack-sizes -Z macro-backtrace

query stack during panic:
#0 [analysis] running analysis passes on crate `colors`
end of query stack
note: Clippy version: clippy 0.1.95 (7d8ebe3128 2026-01-30)

error: aborting due to 1 previous error

INFO: Elapsed time: 3.883s, Critical Path: 1.49s
INFO: 72 processes: 1005 action cache hit, 27 remote cache hit, 7 internal, 38 linux-sandbox.
ERROR: Build did NOT complete successfully
FAILED: 

Version

Error output

Backtrace

<backtrace>

[matrach]

I seem to have hit exactly the same ICE:

Backtrace

error: internal compiler error: /rustc-dev/6a979b3e32522049d0acb4a47f7ae44b7c8abfd5/compiler/rustc_middle/src/ty/typeck_results.rs:590:9: node HirId(DefId(0:11092 ~ cmemu_lib[2ccf]::component::core::execute::instruction::{impl#1}::execute_instruction_step::NEW_N_#30).4) (expr `$hi -`) cannot be placed in TypeckResults with hir_owner DefId(0:2628 ~ cmemu_lib[2ccf]::component::core::execute::instruction::{impl#1}::execute_instruction_step)


thread 'rustc' (2234504) panicked at /rustc-dev/6a979b3e32522049d0acb4a47f7ae44b7c8abfd5/compiler/rustc_middle/src/ty/typeck_results.rs:590:9:
Box<dyn Any>
stack backtrace:
   0:     0x7bf0c33a1ebb - <<std[a42f3b87e642314d]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[fe7c17ffc1da903f]::fmt::Display>::fmt
   1:     0x7bf0c3a202c8 - core[fe7c17ffc1da903f]::fmt::write
   2:     0x7bf0c33b8ec6 - <std[a42f3b87e642314d]::sys::stdio::unix::Stderr as std[a42f3b87e642314d]::io::Write>::write_fmt
   3:     0x7bf0c3377f98 - std[a42f3b87e642314d]::panicking::default_hook::{closure#0}
   4:     0x7bf0c3395323 - std[a42f3b87e642314d]::panicking::default_hook
   5:     0x7bf0c237bc90 - std[a42f3b87e642314d]::panicking::update_hook::<alloc[bf50147f3a277199]::boxed::Box<rustc_driver_impl[b2dff6da787942eb]::install_ice_hook::{closure#1}>>::{closure#0}
   6:     0x7bf0c3395602 - std[a42f3b87e642314d]::panicking::panic_with_hook
   7:     0x7bf0c23ac5f1 - std[a42f3b87e642314d]::panicking::begin_panic::<rustc_errors[231cebe4b140b32f]::ExplicitBug>::{closure#0}
   8:     0x7bf0c23a5306 - std[a42f3b87e642314d]::sys::backtrace::__rust_end_short_backtrace::<std[a42f3b87e642314d]::panicking::begin_panic<rustc_errors[231cebe4b140b32f]::ExplicitBug>::{closure#0}, !>
   9:     0x7bf0c23a2f38 - std[a42f3b87e642314d]::panicking::begin_panic::<rustc_errors[231cebe4b140b32f]::ExplicitBug>
  10:     0x7bf0c23b75f1 - <rustc_errors[231cebe4b140b32f]::diagnostic::BugAbort as rustc_errors[231cebe4b140b32f]::diagnostic::EmissionGuarantee>::emit_producing_guarantee
  11:     0x7bf0c29895c9 - rustc_middle[11b273479f5b7c30]::util::bug::opt_span_bug_fmt::<rustc_span[6ddfab8b4d347fa5]::span_encoding::Span>::{closure#0}
  12:     0x7bf0c2989752 - rustc_middle[11b273479f5b7c30]::ty::context::tls::with_opt::<rustc_middle[11b273479f5b7c30]::util::bug::opt_span_bug_fmt<rustc_span[6ddfab8b4d347fa5]::span_encoding::Span>::{closure#0}, !>::{closure#0}
  13:     0x7bf0c297a2db - rustc_middle[11b273479f5b7c30]::ty::context::tls::with_context_opt::<rustc_middle[11b273479f5b7c30]::ty::context::tls::with_opt<rustc_middle[11b273479f5b7c30]::util::bug::opt_span_bug_fmt<rustc_span[6ddfab8b4d347fa5]::span_encoding::Span>::{closure#0}, !>::{closure#0}, !>
  14:     0x7bf0bfec2164 - rustc_middle[11b273479f5b7c30]::util::bug::bug_fmt
  15:     0x7bf0c298a2f3 - rustc_middle[11b273479f5b7c30]::ty::typeck_results::invalid_hir_id_for_typeck_results::{closure#0}
  16:     0x7bf0c29895f6 - rustc_middle[11b273479f5b7c30]::ty::context::tls::with::<rustc_middle[11b273479f5b7c30]::ty::typeck_results::invalid_hir_id_for_typeck_results::{closure#0}, !>::{closure#0}
  17:     0x7bf0c29895e6 - rustc_middle[11b273479f5b7c30]::ty::context::tls::with_context::<rustc_middle[11b273479f5b7c30]::ty::context::tls::with<rustc_middle[11b273479f5b7c30]::ty::typeck_results::invalid_hir_id_for_typeck_results::{closure#0}, !>::{closure#0}, !>::{closure#0}
  18:     0x7bf0c2979f33 - rustc_middle[11b273479f5b7c30]::ty::context::tls::with_context_opt::<rustc_middle[11b273479f5b7c30]::ty::context::tls::with_context<rustc_middle[11b273479f5b7c30]::ty::context::tls::with<rustc_middle[11b273479f5b7c30]::ty::typeck_results::invalid_hir_id_for_typeck_results::{closure#0}, !>::{closure#0}, !>::{closure#0}, !>
  19:     0x7bf0c297a2e6 - rustc_middle[11b273479f5b7c30]::ty::context::tls::with::<rustc_middle[11b273479f5b7c30]::ty::typeck_results::invalid_hir_id_for_typeck_results::{closure#0}, !>
  20:     0x7bf0c29af684 - rustc_middle[11b273479f5b7c30]::ty::typeck_results::invalid_hir_id_for_typeck_results
  21:     0x7bf0c3af1629 - <rustc_middle[11b273479f5b7c30]::ty::typeck_results::TypeckResults>::expr_ty_adjusted
  22:     0x62fa553cd784 - clippy_utils[7a23a7fb4732f6a6]::hir_utils::swap_binop
  23:     0x62fa553ab547 - <clippy_utils[7a23a7fb4732f6a6]::hir_utils::HirEqInterExpr>::eq_expr
  24:     0x62fa553aab7b - <clippy_utils[7a23a7fb4732f6a6]::hir_utils::HirEqInterExpr>::eq_body
  25:     0x62fa553ac17b - <clippy_utils[7a23a7fb4732f6a6]::hir_utils::HirEqInterExpr>::eq_item
  26:     0x62fa553ace09 - <clippy_utils[7a23a7fb4732f6a6]::hir_utils::HirEqInterExpr>::eq_block
  27:     0x62fa553ab40f - <clippy_utils[7a23a7fb4732f6a6]::hir_utils::HirEqInterExpr>::eq_expr
  28:     0x62fa553ad6de - <clippy_utils[7a23a7fb4732f6a6]::hir_utils::HirEqInterExpr>::eq_block
  29:     0x62fa553ab40f - <clippy_utils[7a23a7fb4732f6a6]::hir_utils::HirEqInterExpr>::eq_expr
  30:     0x62fa553ab153 - <clippy_utils[7a23a7fb4732f6a6]::hir_utils::HirEqInterExpr>::eq_expr
  31:     0x62fa553ab824 - <clippy_utils[7a23a7fb4732f6a6]::hir_utils::HirEqInterExpr>::eq_expr
  32:     0x62fa553ace09 - <clippy_utils[7a23a7fb4732f6a6]::hir_utils::HirEqInterExpr>::eq_block
  33:     0x62fa553ab40f - <clippy_utils[7a23a7fb4732f6a6]::hir_utils::HirEqInterExpr>::eq_expr
  34:     0x62fa553ace71 - <clippy_utils[7a23a7fb4732f6a6]::hir_utils::HirEqInterExpr>::eq_block
  35:     0x62fa553ab40f - <clippy_utils[7a23a7fb4732f6a6]::hir_utils::HirEqInterExpr>::eq_expr
  36:     0x62fa54fc151b - clippy_lints[9d1d6b1181c2b20f]::matches::match_same_arms::check::{closure#4}::{closure#0}
  37:     0x62fa5510c816 - clippy_lints[9d1d6b1181c2b20f]::matches::match_same_arms::check
  38:     0x62fa5528b590 - <clippy_lints[9d1d6b1181c2b20f]::matches::Matches as rustc_lint[222c44f640efaf7a]::passes::LateLintPass>::check_expr
  39:     0x7bf0c2856780 - <rustc_lint[222c44f640efaf7a]::late::LateContextAndPass<rustc_lint[222c44f640efaf7a]::late::RuntimeCombinedLateLintPass> as rustc_hir[ed243f92b38c41d2]::intravisit::Visitor>::visit_expr::{closure#0}::{closure#0}
  40:     0x7bf0c28d76b4 - <rustc_lint[222c44f640efaf7a]::late::LateContextAndPass<rustc_lint[222c44f640efaf7a]::late::RuntimeCombinedLateLintPass> as rustc_hir[ed243f92b38c41d2]::intravisit::Visitor>::visit_expr
  41:     0x7bf0c28d7c01 - <rustc_lint[222c44f640efaf7a]::late::LateContextAndPass<rustc_lint[222c44f640efaf7a]::late::RuntimeCombinedLateLintPass> as rustc_hir[ed243f92b38c41d2]::intravisit::Visitor>::visit_block
  42:     0x7bf0c2856bcc - <rustc_lint[222c44f640efaf7a]::late::LateContextAndPass<rustc_lint[222c44f640efaf7a]::late::RuntimeCombinedLateLintPass> as rustc_hir[ed243f92b38c41d2]::intravisit::Visitor>::visit_expr::{closure#0}::{closure#0}
  43:     0x7bf0c28d76b4 - <rustc_lint[222c44f640efaf7a]::late::LateContextAndPass<rustc_lint[222c44f640efaf7a]::late::RuntimeCombinedLateLintPass> as rustc_hir[ed243f92b38c41d2]::intravisit::Visitor>::visit_expr
  44:     0x7bf0c28d7e91 - <rustc_lint[222c44f640efaf7a]::late::LateContextAndPass<rustc_lint[222c44f640efaf7a]::late::RuntimeCombinedLateLintPass> as rustc_hir[ed243f92b38c41d2]::intravisit::Visitor>::visit_nested_body
  45:     0x7bf0c28d84ce - <rustc_lint[222c44f640efaf7a]::late::LateContextAndPass<rustc_lint[222c44f640efaf7a]::late::RuntimeCombinedLateLintPass> as rustc_hir[ed243f92b38c41d2]::intravisit::Visitor>::visit_fn
  46:     0x7bf0c28edf64 - <rustc_lint[222c44f640efaf7a]::late::LateContextAndPass<rustc_lint[222c44f640efaf7a]::late::RuntimeCombinedLateLintPass> as rustc_hir[ed243f92b38c41d2]::intravisit::Visitor>::visit_nested_item
  47:     0x7bf0c2874199 - <rustc_lint[222c44f640efaf7a]::late::LateContextAndPass<rustc_lint[222c44f640efaf7a]::late::RuntimeCombinedLateLintPass>>::process_mod
  48:     0x7bf0c28ed0cf - <rustc_lint[222c44f640efaf7a]::late::LateContextAndPass<rustc_lint[222c44f640efaf7a]::late::RuntimeCombinedLateLintPass> as rustc_hir[ed243f92b38c41d2]::intravisit::Visitor>::visit_nested_item
  49:     0x7bf0c2874199 - <rustc_lint[222c44f640efaf7a]::late::LateContextAndPass<rustc_lint[222c44f640efaf7a]::late::RuntimeCombinedLateLintPass>>::process_mod
  50:     0x7bf0c28ed0cf - <rustc_lint[222c44f640efaf7a]::late::LateContextAndPass<rustc_lint[222c44f640efaf7a]::late::RuntimeCombinedLateLintPass> as rustc_hir[ed243f92b38c41d2]::intravisit::Visitor>::visit_nested_item
  51:     0x7bf0c2874199 - <rustc_lint[222c44f640efaf7a]::late::LateContextAndPass<rustc_lint[222c44f640efaf7a]::late::RuntimeCombinedLateLintPass>>::process_mod
  52:     0x7bf0c28ed0cf - <rustc_lint[222c44f640efaf7a]::late::LateContextAndPass<rustc_lint[222c44f640efaf7a]::late::RuntimeCombinedLateLintPass> as rustc_hir[ed243f92b38c41d2]::intravisit::Visitor>::visit_nested_item
  53:     0x7bf0c2874199 - <rustc_lint[222c44f640efaf7a]::late::LateContextAndPass<rustc_lint[222c44f640efaf7a]::late::RuntimeCombinedLateLintPass>>::process_mod
  54:     0x7bf0c28ed0cf - <rustc_lint[222c44f640efaf7a]::late::LateContextAndPass<rustc_lint[222c44f640efaf7a]::late::RuntimeCombinedLateLintPass> as rustc_hir[ed243f92b38c41d2]::intravisit::Visitor>::visit_nested_item
  55:     0x7bf0c2874199 - <rustc_lint[222c44f640efaf7a]::late::LateContextAndPass<rustc_lint[222c44f640efaf7a]::late::RuntimeCombinedLateLintPass>>::process_mod
  56:     0x7bf0c48b65f7 - rustc_lint[222c44f640efaf7a]::late::check_crate::{closure#0}
  57:     0x7bf0c48b573f - rustc_lint[222c44f640efaf7a]::late::check_crate
  58:     0x7bf0c48b307e - rustc_interface[454e58b8a783baef]::passes::analysis::{closure#0}::{closure#0}::{closure#2}
  59:     0x7bf0c48b2e5f - rustc_data_structures[8d05224b8dc85cc0]::sync::parallel::par_fns
  60:     0x7bf0c48b2dfc - rustc_interface[454e58b8a783baef]::passes::analysis::{closure#0}::{closure#0}
  61:     0x7bf0c48b2e5f - rustc_data_structures[8d05224b8dc85cc0]::sync::parallel::par_fns
  62:     0x7bf0c3b5c697 - rustc_interface[454e58b8a783baef]::passes::analysis
  63:     0x7bf0c5009a9b - rustc_query_impl[d8d8891b690f31a]::execution::try_execute_query::<rustc_middle[11b273479f5b7c30]::query::caches::SingleCache<rustc_middle[11b273479f5b7c30]::query::erase::ErasedData<[u8; 0usize]>>, true>
  64:     0x7bf0c50093f4 - rustc_query_impl[d8d8891b690f31a]::query_impl::analysis::execute_query_incr::__rust_end_short_backtrace
  65:     0x7bf0c4c4c0ad - rustc_interface[454e58b8a783baef]::interface::run_compiler::<(), rustc_driver_impl[b2dff6da787942eb]::run_compiler::{closure#0}>::{closure#1}
  66:     0x7bf0c4c1d4fe - std[a42f3b87e642314d]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[454e58b8a783baef]::util::run_in_thread_with_globals<rustc_interface[454e58b8a783baef]::util::run_in_thread_pool_with_globals<rustc_interface[454e58b8a783baef]::interface::run_compiler<(), rustc_driver_impl[b2dff6da787942eb]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>
  67:     0x7bf0c4c1db60 - <std[a42f3b87e642314d]::thread::lifecycle::spawn_unchecked<rustc_interface[454e58b8a783baef]::util::run_in_thread_with_globals<rustc_interface[454e58b8a783baef]::util::run_in_thread_pool_with_globals<rustc_interface[454e58b8a783baef]::interface::run_compiler<(), rustc_driver_impl[b2dff6da787942eb]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[fe7c17ffc1da903f]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  68:     0x7bf0c4c1e9ec - <std[a42f3b87e642314d]::sys::thread::unix::Thread>::new::thread_start
  69:     0x7bf0be49caa4 - start_thread
                               at ./nptl/pthread_create.c:447:8
  70:     0x7bf0be529c6c - clone3
                               at ./misc/../sysdeps/unix/sysv/linux/x86_64/clone3.S:78:0
  71:                0x0 - <unknown>

note: we would appreciate a bug report: https://github.com/rust-lang/rust-clippy/issues/new?template=ice.yml

note: please make sure that you have updated to the latest nightly

note: please attach the file at `/home/matrach/ngsim/playground/aj370953/cmemu-framework/rustc-ice-2026-02-27T14_20_17-2234500.txt` to your bug report

note: rustc 1.95.0-nightly (6a979b3e3 2026-02-26) running on x86_64-unknown-linux-gnu

note: compiler flags: --crate-type lib -C opt-level=1 -C embed-bitcode=no -C debuginfo=2 -C debug-assertions=on -C incremental=[REDACTED]

note: some of the compiler flags provided by cargo are hidden

query stack during panic:
#0 [analysis] running analysis passes on crate `cmemu_lib`
end of query stack
note: Clippy version: clippy 0.1.95 (6a979b3e32 2026-02-26)

The issue is with clippy, as cargo +nightly check works.
The error message:

node HirId(DefId(0:15214 ~ cmemu_lib[a92a]::component::core::execute::instruction::{impl#1}::execute_instruction_step::NEW_N_#30).4) (expr $hi -) cannot be placed in TypeckResults with hir_owner DefId(0:3492 ~ cmemu_lib[a92a]::component::core::execute::instruction::{impl#1}::execute_instruction_step)

points to a large method with a large match with a complicated macro, so I haven't tried to find a minimal example yet.
"expr $hi -" sounds suspicious and it comes from a macro in this form:

    (($bs:expr) < $hi:literal : $lo:literal > | $N:tt bits) => {{
        const NEW_N_: usize = $hi - $lo + 1;
        $bs.get_bits::<$hi, $lo, NEW_N_>()
    }};

where

    pub fn get_bits<const H: usize, const L: usize, const S: usize>(self) -> Bitstring<S>

[matrach]

Digging through the related commits, the regression was most likely introduced here: 4b98bd3#diff-fcfb338eef20e0c33e7612c9482bea082d57c791b714efee778e0840d82f0522R496-R967
so it is not match_same_arms-specific.

Here is a minimized code triggering the ICE: https://play.rust-lang.org/?version=nightly&mode=debug&edition=2024&gist=d14f2e187e5d8315cb25f7acc21737f0

Apparently, macro invocations seem to be the culprit.

Edit: a minimal version is just:

macro_rules! foo {
    ($hi:literal) => {{
        // const and '+1' are required to trigger the ICE
        const _: usize = $hi + 1;
    }};
}

fn bar() {
    _ = foo!(2) == foo!(3);
}

[samueltardieu]

Thanks @matrach for the reproducer.

[matrach]

@samueltardieu Thanks for the patch! Regarding beta-nomination: I'm not sure how it works in Rust, but FYI our weekly CI just failed on the beta channel with this issue.

[samueltardieu]

This will be included in Rust 1.95.0 before it is released as stable on April 16. This might even be included in one of the beta versions of Rust 1.95, but this isn't guaranteed.

Cc @flip1995