Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s Running `target/debug/clippy_dev lint tmp/test.rs` Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.13s Running `target/debug/clippy-driver -L ./target/debug -Z no-codegen --edition 2024 tmp/test.rs` warning: `#[must_use]` attribute cannot be used on expressions --> tmp/test.rs:5:5 | 5 | #[must_use] | ^^^^^^^^^^^ | = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! = help: `#[must_use]` can be applied to functions, data types, unions, and traits = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default warning: function `foo` is never used --> tmp/test.rs:3:4 | 3 | fn foo() -> i32 { | ^^^ | = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default thread 'rustc' (1222232) panicked at /Users/teofr/.rustup/toolchains/nightly-2025-09-04-aarch64-apple-darwin/lib/rustlib/rustc-src/rust/compiler/rustc_hir/src/hir.rs:1323:18: can't get the span of an arbitrary parsed attribute: Parsed(MustUse { span: tmp/test.rs:5:5: 5:16 (#0), reason: None }) stack backtrace: 0: __rustc::rust_begin_unwind 1: core::panicking::panic_fmt 2: <rustc_hir::hir::Attribute as rustc_ast::attr::AttributeExt>::span at /Users/teofr/.rustup/toolchains/nightly-2025-09-04-aarch64-apple-darwin/lib/rustlib/rustc-src/rust/compiler/rustc_hir/src/hir.rs:1323:18 3: rustc_hir::hir::Attribute::span at /Users/teofr/.rustup/toolchains/nightly-2025-09-04-aarch64-apple-darwin/lib/rustlib/rustc-src/rust/compiler/rustc_hir/src/hir.rs:1447:9 4: clippy_lints::undocumented_unsafe_blocks::include_attrs_in_span::{{closure}} at ./clippy_lints/src/undocumented_unsafe_blocks.rs:481:21 5: <core::slice::iter::Iter<T> as core::iter::traits::iterator::Iterator>::fold at /Users/teofr/.rustup/toolchains/nightly-2025-09-04-aarch64-apple-darwin/lib/rustlib/src/rust/library/core/src/slice/iter/macros.rs:255:27 6: clippy_lints::undocumented_unsafe_blocks::include_attrs_in_span at ./clippy_lints/src/undocumented_unsafe_blocks.rs:477:45 7: clippy_lints::undocumented_unsafe_blocks::stmt_has_safety_comment at ./clippy_lints/src/undocumented_unsafe_blocks.rs:579:16 8: <clippy_lints::undocumented_unsafe_blocks::UndocumentedUnsafeBlocks as rustc_lint::passes::LateLintPass>::check_stmt at ./clippy_lints/src/undocumented_unsafe_blocks.rs:172:17 9: <rustc_lint::late::LateContextAndPass<rustc_lint::late::RuntimeCombinedLateLintPass>>::with_lint_attrs::<<rustc_lint::late::LateContextAndPass<rustc_lint::late::RuntimeCombinedLateLintPass> as rustc_hir::intravisit::Visitor>::visit_stmt::{closure#0}> 10: rustc_hir::intravisit::walk_block::<rustc_lint::late::LateContextAndPass<rustc_lint::late::RuntimeCombinedLateLintPass>> 11: rustc_hir::intravisit::walk_expr::<rustc_lint::late::LateContextAndPass<rustc_lint::late::RuntimeCombinedLateLintPass>> 12: rustc_hir::intravisit::walk_body::<rustc_lint::late::LateContextAndPass<rustc_lint::late::RuntimeCombinedLateLintPass>> 13: rustc_hir::intravisit::walk_fn::<rustc_lint::late::LateContextAndPass<rustc_lint::late::RuntimeCombinedLateLintPass>> 14: <rustc_lint::late::LateContextAndPass<rustc_lint::late::RuntimeCombinedLateLintPass>>::with_param_env::<<rustc_lint::late::LateContextAndPass<rustc_lint::late::RuntimeCombinedLateLintPass> as rustc_hir::intravisit::Visitor>::visit_item::{closure#0}::{closure#0}> 15: <rustc_lint::late::LateContextAndPass<rustc_lint::late::RuntimeCombinedLateLintPass> as rustc_hir::intravisit::Visitor>::visit_item 16: rustc_lint::late::check_crate::{closure#0} 17: rustc_lint::late::check_crate 18: rustc_interface::passes::analysis::{closure#0} 19: rustc_interface::passes::analysis [... omitted 1 frame ...] 20: rustc_interface::passes::create_and_enter_global_ctxt::<core::option::Option<rustc_interface::queries::Linker>, rustc_driver_impl::run_compiler::{closure#0}::{closure#2}> 21: rustc_interface::interface::run_compiler::<(), rustc_driver_impl::run_compiler::{closure#0}>::{closure#1} note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace. error: the compiler unexpectedly panicked. this is a bug. 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: rustc 1.91.0-nightly (a1208bf76 2025-09-03) running on aarch64-apple-darwin note: compiler flags: -Z no-codegen query stack during panic: #0 [analysis] running analysis passes on this crate end of query stack note: Clippy version: clippy 0.1.91 (2a6197e375 2025-09-16) warning: 2 warnings emitted ``` </p> </details> <!-- TRIAGEBOT_START --> <!-- TRIAGEBOT_ASSIGN_START --> <!-- TRIAGEBOT_ASSIGN_END --> <!-- TRIAGEBOT_END -->