clippy: parse of ReprTransparent panic

[alisterd51]

Summary

I am working on https://github.com/alisterd51/gratOS

A bug seems to have been introduced in clippy nightly.

Bug reproduction

git clone https://github.com/alisterd51/gratOS
cd gratOS
cargo clippy

The problematic code seems to be the following:

use super::{BUFFER_WIDTH, Screen, ScreenChar, ScreenCharLine};
use crate::io::outb;

#[repr(transparent)]
struct Buffer {
    chars: Screen,
}
[...]

Version

rustc 1.87.0-nightly (00f245915 2025-02-26)
binary: rustc
commit-hash: 00f245915b0c7839d42c26f9628220c4f1b93bf6
commit-date: 2025-02-26
host: x86_64-unknown-linux-gnu
release: 1.87.0-nightly
LLVM version: 20.1.0

Error output

Backtrace

thread 'rustc' panicked at /rustc/00f245915b0c7839d42c26f9628220c4f1b93bf6/compiler/rustc_hir/src/hir.rs:1165:18:
can't get the span of an arbitrary parsed attribute: Parsed(Repr([(ReprTransparent, src/driver/vga/text_mode.rs:4:8: 4:19 (#0))]))
stack backtrace:
 0:     0x72c89322fe25 - std::backtrace::Backtrace::create::h1e3c43ff134d0a33
 1:     0x72c8915af2a5 - std::backtrace::Backtrace::force_capture::h75965a4aa80bbf9e
 2:     0x72c8907242fe - std[63ccf99907648090]::panicking::update_hook::<alloc[40f330a4b1dfe34e]::boxed::Box<rustc_driver_impl[44d86c3fd4736e11]::install_ice_hook::{closure#1}>>::{closure#0}
 3:     0x72c8915c79d3 - std::panicking::rust_panic_with_hook::hc531b406179c95b0
 4:     0x72c8915c76ca - std::panicking::begin_panic_handler::{{closure}}::hcdc071f581557557
 5:     0x72c8915c4f89 - std::sys::backtrace::__rust_end_short_backtrace::h0fbed5a87d7f358d
 6:     0x72c8915c738d - rust_begin_unwind
 7:     0x72c88e259d50 - core::panicking::panic_fmt::h459d961e1d0721af
 8:     0x556cc99b5699 - <clippy_lints[fa263d50b990e5dd]::macro_use::MacroUseImports as rustc_lint[462e4f7eae09b0af]::passes::LateLintPass>::check_attribute
 9:     0x72c890c0c606 - <rustc_lint[462e4f7eae09b0af]::late::LateContextAndPass<rustc_lint[462e4f7eae09b0af]::late::RuntimeCombinedLateLintPass> as rustc_hir[d00047872d62e706]::intravisit::Visitor>::visit_nested_item
10:     0x72c890c0c820 - <rustc_lint[462e4f7eae09b0af]::late::LateContextAndPass<rustc_lint[462e4f7eae09b0af]::late::RuntimeCombinedLateLintPass> as rustc_hir[d00047872d62e706]::intravisit::Visitor>::visit_nested_item
11:     0x72c890c0c820 - <rustc_lint[462e4f7eae09b0af]::late::LateContextAndPass<rustc_lint[462e4f7eae09b0af]::late::RuntimeCombinedLateLintPass> as rustc_hir[d00047872d62e706]::intravisit::Visitor>::visit_nested_item
12:     0x72c890c0c820 - <rustc_lint[462e4f7eae09b0af]::late::LateContextAndPass<rustc_lint[462e4f7eae09b0af]::late::RuntimeCombinedLateLintPass> as rustc_hir[d00047872d62e706]::intravisit::Visitor>::visit_nested_item
13:     0x72c892e8e7cb - rustc_lint[462e4f7eae09b0af]::late::check_crate::{closure#0}
14:     0x72c892e8eaab - rustc_lint[462e4f7eae09b0af]::late::check_crate
15:     0x72c892e92432 - rustc_interface[e696fb279c73d43f]::passes::analysis
16:     0x72c892e92219 - rustc_query_impl[14741ea0e0b48805]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[14741ea0e0b48805]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[fe836999645634e1]::query::erase::Erased<[u8; 0usize]>>
17:     0x72c892e8daea - rustc_query_system[964dfde9a4346c01]::query::plumbing::try_execute_query::<rustc_query_impl[14741ea0e0b48805]::DynamicConfig<rustc_query_system[964dfde9a4346c01]::query::caches::SingleCache<rustc_middle[fe836999645634e1]::query::erase::Erased<[u8; 0usize]>>, false, false, false>, rustc_query_impl[14741ea0e0b48805]::plumbing::QueryCtxt, true>
18:     0x72c892e8d4e2 - rustc_query_impl[14741ea0e0b48805]::query_impl::analysis::get_query_incr::__rust_end_short_backtrace
19:     0x72c892f3777c - rustc_interface[e696fb279c73d43f]::passes::create_and_enter_global_ctxt::<core[e205c6c2c408574d]::option::Option<rustc_interface[e696fb279c73d43f]::queries::Linker>, rustc_driver_impl[44d86c3fd4736e11]::run_compiler::{closure#0}::{closure#2}>::{closure#2}::{closure#0}
20:     0x72c892f282e0 - rustc_interface[e696fb279c73d43f]::interface::run_compiler::<(), rustc_driver_impl[44d86c3fd4736e11]::run_compiler::{closure#0}>::{closure#1}
21:     0x72c892daedc8 - std[63ccf99907648090]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[e696fb279c73d43f]::util::run_in_thread_with_globals<rustc_interface[e696fb279c73d43f]::util::run_in_thread_pool_with_globals<rustc_interface[e696fb279c73d43f]::interface::run_compiler<(), rustc_driver_impl[44d86c3fd4736e11]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>
22:     0x72c892daf574 - <<std[63ccf99907648090]::thread::Builder>::spawn_unchecked_<rustc_interface[e696fb279c73d43f]::util::run_in_thread_with_globals<rustc_interface[e696fb279c73d43f]::util::run_in_thread_pool_with_globals<rustc_interface[e696fb279c73d43f]::interface::run_compiler<(), rustc_driver_impl[44d86c3fd4736e11]::run_compiler::{closure#0}>::{closure#1}, ()>::{closure#0}, ()>::{closure#0}::{closure#0}, ()>::{closure#1} as core[e205c6c2c408574d]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
23:     0x72c892db0a6f - std::sys::pal::unix::thread::Thread::new::thread_start::h8f2a48bb719a6902
24:     0x72c88cc9caa4 - start_thread
                             at ./nptl/pthread_create.c:447:8
25:     0x72c88cd29c3c - clone3
                             at ./misc/../sysdeps/unix/sysv/linux/x86_64/clone3.S:78:0
26:                0x0 - <unknown>


rustc version: 1.87.0-nightly (00f245915 2025-02-26)
platform: x86_64-unknown-linux-gnu

query stack during panic:
#0 [analysis] running analysis passes on this crate
end of query stack

[samueltardieu]

Duplicate of #14303