Encountered Incremental Compilation Error With implementations_of_trait

[m4t1j4]

Summary

I got an error while running clippy:

cargo clippy --all-targets --all-features -- -D warnings

Running cargo clean solved the problem for me.

Version

rustc 1.84.1 (e71f9a9a9 2025-01-27)
binary: rustc
commit-hash: e71f9a9a98b0faf423844bf0ba7438f29dc27d58
commit-date: 2025-01-27
host: x86_64-unknown-linux-gnu
release: 1.84.1
LLVM version: 19.1.5

Error output

error: internal compiler error: encountered incremental compilation error with implementations_of_trait(6a17a4ecda523ca2-c877ac74d7c1db66)
  |
  = help: This is a known issue with the compiler. Run `cargo clean -p integration` or `cargo clean` to allow your project to compile
  = note: Please follow the instructions below to create a bug report with the provided information
  = note: See <https://github.com/rust-lang/rust/issues/84970> for more information

thread 'rustc' panicked at /rustc/e71f9a9a98b0faf423844bf0ba7438f29dc27d58/compiler/rustc_query_system/src/query/plumbing.rs:731:9:
Found unstable fingerprints for implementations_of_trait(6a17a4ecda523ca2-c877ac74d7c1db66): []

stack backtrace:

stack backtrace:
   0:     0x7e9e69b8441a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h14b23c1989cbd5c2
   1:     0x7e9e6a227162 - core::fmt::write::h346b5eee5ed4d7cc
   2:     0x7e9e6b4a5091 - std::io::Write::write_fmt::heeb48dcd4a60b46b
   3:     0x7e9e69b84272 - std::sys::backtrace::BacktraceLock::print::h48db11f3fd4983ff
   4:     0x7e9e69b8674a - std::panicking::default_hook::{{closure}}::h65db976b9c0d8674
   5:     0x7e9e69b865b0 - std::panicking::default_hook::h6eb3a1192db1ae36
   6:     0x7e9e68c14095 - std[54cea36f08c4d466]::panicking::update_hook::<alloc[f5c0dcb5f10d0150]::boxed::Box<rustc_driver_impl[37f7bfa86997fb3b]::install_ice_hook::{closure#0}>>::{closure#0}
   7:     0x7e9e69b86e28 - std::panicking::rust_panic_with_hook::h370ee1901241e459
   8:     0x7e9e69b86bfa - std::panicking::begin_panic_handler::{{closure}}::heabfe92676d6d073
   9:     0x7e9e69b848c9 - std::sys::backtrace::__rust_end_short_backtrace::h6e22d229d4fdf49e
  10:     0x7e9e69b868bc - rust_begin_unwind
  11:     0x7e9e666e3e80 - core::panicking::panic_fmt::hfae270fab21da3e6
  12:     0x7e9e696fdf9c - rustc_query_system[40b99bd727a86ef6]::query::plumbing::incremental_verify_ich_failed::<rustc_middle[f124f68bc34f306d]::ty::context::TyCtxt>.specialized.5
  13:     0x7e9e6a88eea5 - rustc_query_system[40b99bd727a86ef6]::query::plumbing::incremental_verify_ich::<rustc_middle[f124f68bc34f306d]::ty::context::TyCtxt, rustc_middle[f124f68bc34f306d]::query::erase::Erased<[u8; 16usize]>>
  14:     0x7e9e6a837a09 - rustc_query_system[40b99bd727a86ef6]::query::plumbing::try_execute_query::<rustc_query_impl[d508d6b1a3f59f0f]::DynamicConfig<rustc_query_system[40b99bd727a86ef6]::query::caches::DefaultCache<(rustc_span[8aaab159fc7bbb1b]::def_id::CrateNum, rustc_span[8aaab159fc7bbb1b]::def_id::DefId), rustc_middle[f124f68bc34f306d]::query::erase::Erased<[u8; 16usize]>>, false, false, false>, rustc_query_impl[d508d6b1a3f59f0f]::plumbing::QueryCtxt, true>
  15:     0x7e9e6a836c48 - rustc_query_impl[d508d6b1a3f59f0f]::query_impl::implementations_of_trait::get_query_incr::__rust_end_short_backtrace
  16:     0x7e9e6a834e79 - rustc_middle[f124f68bc34f306d]::ty::trait_def::trait_impls_of_provider
  17:     0x7e9e6a834573 - rustc_query_impl[d508d6b1a3f59f0f]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[d508d6b1a3f59f0f]::query_impl::trait_impls_of::dynamic_query::{closure#2}::{closure#0}, rustc_middle[f124f68bc34f306d]::query::erase::Erased<[u8; 8usize]>>
  18:     0x7e9e6a511533 - rustc_query_system[40b99bd727a86ef6]::query::plumbing::try_execute_query::<rustc_query_impl[d508d6b1a3f59f0f]::DynamicConfig<rustc_query_system[40b99bd727a86ef6]::query::caches::DefIdCache<rustc_middle[f124f68bc34f306d]::query::erase::Erased<[u8; 8usize]>>, false, false, false>, rustc_query_impl[d508d6b1a3f59f0f]::plumbing::QueryCtxt, true>
  19:     0x7e9e6b009b47 - rustc_query_impl[d508d6b1a3f59f0f]::plumbing::force_from_dep_node::<rustc_query_impl[d508d6b1a3f59f0f]::DynamicConfig<rustc_query_system[40b99bd727a86ef6]::query::caches::DefIdCache<rustc_middle[f124f68bc34f306d]::query::erase::Erased<[u8; 8usize]>>, false, false, false>>
  20:     0x7e9e6967962d - <rustc_query_impl[d508d6b1a3f59f0f]::plumbing::query_callback<rustc_query_impl[d508d6b1a3f59f0f]::query_impl::trait_impls_of::QueryType>::{closure#0} as core[53bbf806356464da]::ops::function::FnOnce<(rustc_middle[f124f68bc34f306d]::ty::context::TyCtxt, rustc_query_system[40b99bd727a86ef6]::dep_graph::dep_node::DepNode)>>::call_once
  21:     0x7e9e6a224111 - <rustc_query_system[40b99bd727a86ef6]::dep_graph::graph::DepGraphData<rustc_middle[f124f68bc34f306d]::dep_graph::DepsType>>::try_mark_previous_green::<rustc_query_impl[d508d6b1a3f59f0f]::plumbing::QueryCtxt>
  22:     0x7e9e6a224082 - <rustc_query_system[40b99bd727a86ef6]::dep_graph::graph::DepGraphData<rustc_middle[f124f68bc34f306d]::dep_graph::DepsType>>::try_mark_previous_green::<rustc_query_impl[d508d6b1a3f59f0f]::plumbing::QueryCtxt>
  23:     0x7e9e6a224082 - <rustc_query_system[40b99bd727a86ef6]::dep_graph::graph::DepGraphData<rustc_middle[f124f68bc34f306d]::dep_graph::DepsType>>::try_mark_previous_green::<rustc_query_impl[d508d6b1a3f59f0f]::plumbing::QueryCtxt>
  24:     0x7e9e6a224082 - <rustc_query_system[40b99bd727a86ef6]::dep_graph::graph::DepGraphData<rustc_middle[f124f68bc34f306d]::dep_graph::DepsType>>::try_mark_previous_green::<rustc_query_impl[d508d6b1a3f59f0f]::plumbing::QueryCtxt>
  25:     0x7e9e6a224082 - <rustc_query_system[40b99bd727a86ef6]::dep_graph::graph::DepGraphData<rustc_middle[f124f68bc34f306d]::dep_graph::DepsType>>::try_mark_previous_green::<rustc_query_impl[d508d6b1a3f59f0f]::plumbing::QueryCtxt>
  26:     0x7e9e6a224082 - <rustc_query_system[40b99bd727a86ef6]::dep_graph::graph::DepGraphData<rustc_middle[f124f68bc34f306d]::dep_graph::DepsType>>::try_mark_previous_green::<rustc_query_impl[d508d6b1a3f59f0f]::plumbing::QueryCtxt>
  27:     0x7e9e6a224082 - <rustc_query_system[40b99bd727a86ef6]::dep_graph::graph::DepGraphData<rustc_middle[f124f68bc34f306d]::dep_graph::DepsType>>::try_mark_previous_green::<rustc_query_impl[d508d6b1a3f59f0f]::plumbing::QueryCtxt>
  28:     0x7e9e6a224082 - <rustc_query_system[40b99bd727a86ef6]::dep_graph::graph::DepGraphData<rustc_middle[f124f68bc34f306d]::dep_graph::DepsType>>::try_mark_previous_green::<rustc_query_impl[d508d6b1a3f59f0f]::plumbing::QueryCtxt>
  29:     0x7e9e6a224082 - <rustc_query_system[40b99bd727a86ef6]::dep_graph::graph::DepGraphData<rustc_middle[f124f68bc34f306d]::dep_graph::DepsType>>::try_mark_previous_green::<rustc_query_impl[d508d6b1a3f59f0f]::plumbing::QueryCtxt>
  30:     0x7e9e6a2238ae - <rustc_query_system[40b99bd727a86ef6]::dep_graph::graph::DepGraphData<rustc_middle[f124f68bc34f306d]::dep_graph::DepsType>>::try_mark_green::<rustc_query_impl[d508d6b1a3f59f0f]::plumbing::QueryCtxt>
  31:     0x7e9e6adb84ea - rustc_query_system[40b99bd727a86ef6]::query::plumbing::ensure_must_run::<rustc_query_impl[d508d6b1a3f59f0f]::DynamicConfig<rustc_query_system[40b99bd727a86ef6]::query::caches::DefaultCache<rustc_span[8aaab159fc7bbb1b]::def_id::LocalModDefId, rustc_middle[f124f68bc34f306d]::query::erase::Erased<[u8; 0usize]>>, false, false, false>, rustc_query_impl[d508d6b1a3f59f0f]::plumbing::QueryCtxt>
  32:     0x7e9e6ac20bd7 - rustc_query_impl[d508d6b1a3f59f0f]::query_impl::check_mod_type_wf::get_query_incr::__rust_end_short_backtrace
  33:     0x7e9e6a61e5a4 - rustc_hir_analysis[e1af88464222557]::check_crate
  34:     0x7e9e6ac01b04 - rustc_interface[cacdc69d6663efce]::passes::run_required_analyses
  35:     0x7e9e6adb389e - rustc_interface[cacdc69d6663efce]::passes::analysis
  36:     0x7e9e6adb386f - rustc_query_impl[d508d6b1a3f59f0f]::plumbing::__rust_begin_short_backtrace::<rustc_query_impl[d508d6b1a3f59f0f]::query_impl::analysis::dynamic_query::{closure#2}::{closure#0}, rustc_middle[f124f68bc34f306d]::query::erase::Erased<[u8; 1usize]>>
  37:     0x7e9e6b134fba - rustc_query_system[40b99bd727a86ef6]::query::plumbing::try_execute_query::<rustc_query_impl[d508d6b1a3f59f0f]::DynamicConfig<rustc_query_system[40b99bd727a86ef6]::query::caches::SingleCache<rustc_middle[f124f68bc34f306d]::query::erase::Erased<[u8; 1usize]>>, false, false, false>, rustc_query_impl[d508d6b1a3f59f0f]::plumbing::QueryCtxt, true>
  38:     0x7e9e6b134ab7 - rustc_query_impl[d508d6b1a3f59f0f]::query_impl::analysis::get_query_incr::__rust_end_short_backtrace
  39:     0x7e9e6b06a8d8 - rustc_interface[cacdc69d6663efce]::interface::run_compiler::<core[53bbf806356464da]::result::Result<(), rustc_span[8aaab159fc7bbb1b]::ErrorGuaranteed>, rustc_driver_impl[37f7bfa86997fb3b]::run_compiler::{closure#0}>::{closure#1}
  40:     0x7e9e6b07fae0 - std[54cea36f08c4d466]::sys::backtrace::__rust_begin_short_backtrace::<rustc_interface[cacdc69d6663efce]::util::run_in_thread_with_globals<rustc_interface[cacdc69d6663efce]::util::run_in_thread_pool_with_globals<rustc_interface[cacdc69d6663efce]::interface::run_compiler<core[53bbf806356464da]::result::Result<(), rustc_span[8aaab159fc7bbb1b]::ErrorGuaranteed>, rustc_driver_impl[37f7bfa86997fb3b]::run_compiler::{closure#0}>::{closure#1}, core[53bbf806356464da]::result::Result<(), rustc_span[8aaab159fc7bbb1b]::ErrorGuaranteed>>::{closure#0}, core[53bbf806356464da]::result::Result<(), rustc_span[8aaab159fc7bbb1b]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[53bbf806356464da]::result::Result<(), rustc_span[8aaab159fc7bbb1b]::ErrorGuaranteed>>
  41:     0x7e9e6b07f7fd - <<std[54cea36f08c4d466]::thread::Builder>::spawn_unchecked_<rustc_interface[cacdc69d6663efce]::util::run_in_thread_with_globals<rustc_interface[cacdc69d6663efce]::util::run_in_thread_pool_with_globals<rustc_interface[cacdc69d6663efce]::interface::run_compiler<core[53bbf806356464da]::result::Result<(), rustc_span[8aaab159fc7bbb1b]::ErrorGuaranteed>, rustc_driver_impl[37f7bfa86997fb3b]::run_compiler::{closure#0}>::{closure#1}, core[53bbf806356464da]::result::Result<(), rustc_span[8aaab159fc7bbb1b]::ErrorGuaranteed>>::{closure#0}, core[53bbf806356464da]::result::Result<(), rustc_span[8aaab159fc7bbb1b]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[53bbf806356464da]::result::Result<(), rustc_span[8aaab159fc7bbb1b]::ErrorGuaranteed>>::{closure#1} as core[53bbf806356464da]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  42:     0x7e9e6b07efb9 - std::sys::pal::unix::thread::Thread::new::thread_start::h0feaf4a9a4b2ecde
  43:     0x7e9e65294ac3 - start_thread
                               at ./nptl/pthread_create.c:442:8
  44:     0x7e9e65326850 - __GI___clone3
                               at ./misc/../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
  45:                0x0 - <unknown>

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: rustc 1.84.1 (e71f9a9a9 2025-01-27) running on x86_64-unknown-linux-gnu

note: compiler flags: -C embed-bitcode=no -C debuginfo=2 -C incremental=[REDACTED]

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

query stack during panic:

query stack during panic:
#0 [implementations_of_trait] looking up implementations of a trait in a crate
#1 [trait_impls_of] finding trait impls of `tokio::util::linked_list::Link`
end of query stack

note: Clippy version: clippy 0.1.84 (e71f9a9a98 2025-01-27)

there was a panic while trying to force a dep node

try_mark_green dep node stack:

try_mark_green dep node stack:
#0 TraitSelect(73b46e9c268a2784-29c9b6c101b29d68)
#1 normalize_canonicalized_projection_ty(7bf8583ef7c1f0ee-719ff5527b38781d)
#2 dropck_outlives(e8422056cfa2f938-e9850fb1d47a0330)
#3 mir_borrowck(integration[55ee]::util::start_issuer_and_client::{closure#0})
#4 mir_borrowck(integration[55ee]::util::start_issuer_and_client)
#5 type_of_opaque(integration[55ee]::util::start_issuer_and_client::{opaque#0})
#6 type_of(integration[55ee]::util::start_issuer_and_client::{opaque#0})
#7 check_well_formed(integration[55ee]::util::start_issuer_and_client::{opaque#0})
#8 check_mod_type_wf(integration[55ee]::util)
end of try_mark_green dep node stack

error: could not compile `<crate-name>` (test "integration") due to 1 previous error

[samueltardieu]

Related to rust-lang/rust#84970