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Compilation suddenly stopped working; Cargo clean fixed the problem #101058

Open lpotthast opened 2 years ago

lpotthast commented 2 years ago

Compilation suddenly stopped working. Rustc only reported the error below on every compilation attempt. I messed around with a rather complex trait involving many (16 at the moment) associated types. After running cargo clean and rebuilding the project from scratch, the application compiled again and ran as good as always.

Code

// As the code is not open-sourced, I cannot share an example. I just hope that the log output alone can help a tiny bit.

Meta

rustc --version --verbose:

rustc 1.63.0 (4b91a6ea7 2022-08-08)
binary: rustc
commit-hash: 4b91a6ea7258a947e59c6522cd5898e7c0a6a88f
commit-date: 2022-08-08
host: aarch64-apple-darwin
release: 1.63.0
LLVM version: 14.0.5

Error output

thread 'rustc' panicked at 'called `Option::unwrap()` on a `None` value', compiler/rustc_metadata/src/rmeta/def_path_hash_map.rs:23:85
stack backtrace:
   0:        0x10334ffe0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h188b7ef1c7993e78
   1:        0x1033a1a54 - core::fmt::write::he84a3004e7af3f34
   2:        0x1033430c0 - std::io::Write::write_fmt::h9370b50affaab0be
   3:        0x103352c24 - std::panicking::default_hook::{{closure}}::hc074f8023cce83ca
   4:        0x10335298c - std::panicking::default_hook::hef854b51b9b79ff2
   5:        0x10a7c0154 - rustc_driver[8d2050f8429f7bc4]::DEFAULT_HOOK::{closure#0}::{closure#0}
   6:        0x1033531f8 - std::panicking::rust_panic_with_hook::h1e59e224d558a492
   7:        0x103353058 - std::panicking::begin_panic_handler::{{closure}}::he1a9d6ab32bfd8c6
   8:        0x1033504bc - std::sys_common::backtrace::__rust_end_short_backtrace::he9b94791b02f48cd
   9:        0x103352de8 - _rust_begin_unwind
  10:        0x1033cf968 - core::panicking::panic_fmt::h9fec86f6a9c4146e
  11:        0x1033cf888 - core::panicking::panic::h02e9fc642940f2ec
  12:        0x10db495f4 - <rustc_metadata[10f669a6330283ac]::creader::CStore as rustc_session[282d64e95cd3bf88]::cstore::CrateStore>::def_path_hash_to_def_id
  13:        0x10e2eeb6c - <rustc_middle[4fa9dd76776bb2aa]::ty::context::TyCtxt>::def_path_hash_to_def_id
  14:        0x10e20be8c - <rustc_query_system[f18d9eae22d44560]::dep_graph::dep_node::DepNode<rustc_middle[4fa9dd76776bb2aa]::dep_graph::dep_node::DepKind> as rustc_middle[4fa9dd76776bb2aa]::dep_graph::dep_node::DepNodeExt>::extract_def_id
  15:        0x10d898c34 - rustc_query_impl[d9716e6ec5023784]::query_callbacks::type_of::force_from_dep_node
  16:        0x10e2d9c70 - <rustc_middle[4fa9dd76776bb2aa]::ty::context::TyCtxt as rustc_query_system[f18d9eae22d44560]::dep_graph::DepContext>::try_force_from_dep_node
  17:        0x10d7aa8a4 - <rustc_query_system[f18d9eae22d44560]::dep_graph::graph::DepGraph<rustc_middle[4fa9dd76776bb2aa]::dep_graph::dep_node::DepKind>>::try_mark_previous_green::<rustc_query_impl[d9716e6ec5023784]::plumbing::QueryCtxt>
  18:        0x10d7aa874 - <rustc_query_system[f18d9eae22d44560]::dep_graph::graph::DepGraph<rustc_middle[4fa9dd76776bb2aa]::dep_graph::dep_node::DepKind>>::try_mark_previous_green::<rustc_query_impl[d9716e6ec5023784]::plumbing::QueryCtxt>
  19:        0x10d7aa874 - <rustc_query_system[f18d9eae22d44560]::dep_graph::graph::DepGraph<rustc_middle[4fa9dd76776bb2aa]::dep_graph::dep_node::DepKind>>::try_mark_previous_green::<rustc_query_impl[d9716e6ec5023784]::plumbing::QueryCtxt>
  20:        0x10d7aa874 - <rustc_query_system[f18d9eae22d44560]::dep_graph::graph::DepGraph<rustc_middle[4fa9dd76776bb2aa]::dep_graph::dep_node::DepKind>>::try_mark_previous_green::<rustc_query_impl[d9716e6ec5023784]::plumbing::QueryCtxt>
  21:        0x10d7aa874 - <rustc_query_system[f18d9eae22d44560]::dep_graph::graph::DepGraph<rustc_middle[4fa9dd76776bb2aa]::dep_graph::dep_node::DepKind>>::try_mark_previous_green::<rustc_query_impl[d9716e6ec5023784]::plumbing::QueryCtxt>
  22:        0x10d7aa874 - <rustc_query_system[f18d9eae22d44560]::dep_graph::graph::DepGraph<rustc_middle[4fa9dd76776bb2aa]::dep_graph::dep_node::DepKind>>::try_mark_previous_green::<rustc_query_impl[d9716e6ec5023784]::plumbing::QueryCtxt>
  23:        0x10d7aa874 - <rustc_query_system[f18d9eae22d44560]::dep_graph::graph::DepGraph<rustc_middle[4fa9dd76776bb2aa]::dep_graph::dep_node::DepKind>>::try_mark_previous_green::<rustc_query_impl[d9716e6ec5023784]::plumbing::QueryCtxt>
  24:        0x10d7aa874 - <rustc_query_system[f18d9eae22d44560]::dep_graph::graph::DepGraph<rustc_middle[4fa9dd76776bb2aa]::dep_graph::dep_node::DepKind>>::try_mark_previous_green::<rustc_query_impl[d9716e6ec5023784]::plumbing::QueryCtxt>
  25:        0x10d5da528 - rustc_query_system[f18d9eae22d44560]::query::plumbing::try_load_from_disk_and_cache_in_memory::<rustc_query_impl[d9716e6ec5023784]::plumbing::QueryCtxt, rustc_middle[4fa9dd76776bb2aa]::infer::canonical::Canonical<rustc_middle[4fa9dd76776bb2aa]::ty::ParamEnvAnd<rustc_middle[4fa9dd76776bb2aa]::ty::Predicate>>, core[bae5e8ef542d20e5]::result::Result<rustc_middle[4fa9dd76776bb2aa]::traits::select::EvaluationResult, rustc_middle[4fa9dd76776bb2aa]::traits::select::OverflowError>>
  26:        0x10d61fa08 - rustc_query_system[f18d9eae22d44560]::query::plumbing::get_query::<rustc_query_impl[d9716e6ec5023784]::queries::evaluate_obligation, rustc_query_impl[d9716e6ec5023784]::plumbing::QueryCtxt>
  27:        0x10d894b2c - <rustc_query_impl[d9716e6ec5023784]::Queries as rustc_middle[4fa9dd76776bb2aa]::ty::query::QueryEngine>::evaluate_obligation
  28:        0x10df98de8 - <rustc_infer[b8df2f762d2af832]::infer::InferCtxt as rustc_trait_selection[3c6344c85e89bbc6]::traits::query::evaluate_obligation::InferCtxtExt>::evaluate_obligation
  29:        0x10df98ed4 - <rustc_infer[b8df2f762d2af832]::infer::InferCtxt as rustc_trait_selection[3c6344c85e89bbc6]::traits::query::evaluate_obligation::InferCtxtExt>::evaluate_obligation_no_overflow
  30:        0x10e0038fc - <rustc_trait_selection[3c6344c85e89bbc6]::traits::fulfill::FulfillProcessor>::process_trait_obligation
  31:        0x10dffddac - <rustc_trait_selection[3c6344c85e89bbc6]::traits::fulfill::FulfillProcessor as rustc_data_structures[d06618763e7f5cde]::obligation_forest::ObligationProcessor>::process_obligation
  32:        0x10e049b64 - <rustc_data_structures[d06618763e7f5cde]::obligation_forest::ObligationForest<rustc_trait_selection[3c6344c85e89bbc6]::traits::fulfill::PendingPredicateObligation>>::process_obligations::<rustc_trait_selection[3c6344c85e89bbc6]::traits::fulfill::FulfillProcessor, rustc_data_structures[d06618763e7f5cde]::obligation_forest::Outcome<rustc_trait_selection[3c6344c85e89bbc6]::traits::fulfill::PendingPredicateObligation, rustc_infer[b8df2f762d2af832]::traits::FulfillmentErrorCode>>
  33:        0x10dffd714 - <rustc_trait_selection[3c6344c85e89bbc6]::traits::fulfill::FulfillmentContext as rustc_infer[b8df2f762d2af832]::traits::engine::TraitEngine>::select_where_possible
  34:        0x10cc42154 - <rustc_typeck[dc6010940c7a2a65]::check::fn_ctxt::FnCtxt>::check_argument_types
  35:        0x10cc25d94 - <rustc_typeck[dc6010940c7a2a65]::check::fn_ctxt::FnCtxt>::confirm_builtin_call
  36:        0x10cc23e68 - <rustc_typeck[dc6010940c7a2a65]::check::fn_ctxt::FnCtxt>::check_call
  37:        0x10cc73574 - <rustc_typeck[dc6010940c7a2a65]::check::fn_ctxt::FnCtxt>::check_expr_kind
  38:        0x10cc34cc8 - <rustc_typeck[dc6010940c7a2a65]::check::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  39:        0x10cc46a68 - <rustc_typeck[dc6010940c7a2a65]::check::fn_ctxt::FnCtxt>::check_argument_types::{closure#0}
  40:        0x10cc420e0 - <rustc_typeck[dc6010940c7a2a65]::check::fn_ctxt::FnCtxt>::check_argument_types
  41:        0x10cc41848 - <rustc_typeck[dc6010940c7a2a65]::check::fn_ctxt::FnCtxt>::check_method_argument_types
  42:        0x10cc74d24 - <rustc_typeck[dc6010940c7a2a65]::check::fn_ctxt::FnCtxt>::check_expr_kind
  43:        0x10cc34cc8 - <rustc_typeck[dc6010940c7a2a65]::check::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  44:        0x10cc76af4 - <rustc_typeck[dc6010940c7a2a65]::check::fn_ctxt::FnCtxt>::check_expr_kind
  45:        0x10cc34cc8 - <rustc_typeck[dc6010940c7a2a65]::check::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  46:        0x10cc47ab8 - <rustc_typeck[dc6010940c7a2a65]::check::fn_ctxt::FnCtxt>::check_stmt
  47:        0x10cc4810c - <rustc_typeck[dc6010940c7a2a65]::check::fn_ctxt::FnCtxt>::check_block_with_expected
  48:        0x10cc73768 - <rustc_typeck[dc6010940c7a2a65]::check::fn_ctxt::FnCtxt>::check_expr_kind
  49:        0x10cc34cc8 - <rustc_typeck[dc6010940c7a2a65]::check::fn_ctxt::FnCtxt>::check_expr_with_expectation_and_args
  50:        0x10cc35980 - <rustc_typeck[dc6010940c7a2a65]::check::fn_ctxt::FnCtxt>::check_return_expr
  51:        0x10ccc934c - rustc_typeck[dc6010940c7a2a65]::check::check::check_fn
  52:        0x10cd92e5c - <rustc_infer[b8df2f762d2af832]::infer::InferCtxtBuilder>::enter::<&rustc_middle[4fa9dd76776bb2aa]::ty::context::TypeckResults, <rustc_typeck[dc6010940c7a2a65]::check::inherited::InheritedBuilder>::enter<rustc_typeck[dc6010940c7a2a65]::check::typeck_with_fallback<rustc_typeck[dc6010940c7a2a65]::check::typeck::{closure#0}>::{closure#1}, &rustc_middle[4fa9dd76776bb2aa]::ty::context::TypeckResults>::{closure#0}>
  53:        0x10cd17970 - rustc_typeck[dc6010940c7a2a65]::check::typeck
  54:        0x10d7bb684 - <rustc_query_system[f18d9eae22d44560]::dep_graph::graph::DepGraph<rustc_middle[4fa9dd76776bb2aa]::dep_graph::dep_node::DepKind>>::with_task::<rustc_middle[4fa9dd76776bb2aa]::ty::context::TyCtxt, rustc_span[143ffa354e326ede]::def_id::LocalDefId, &rustc_middle[4fa9dd76776bb2aa]::ty::context::TypeckResults>
  55:        0x10d57a388 - rustc_query_system[f18d9eae22d44560]::query::plumbing::try_execute_query::<rustc_query_impl[d9716e6ec5023784]::plumbing::QueryCtxt, rustc_query_system[f18d9eae22d44560]::query::caches::DefaultCache<rustc_span[143ffa354e326ede]::def_id::LocalDefId, &rustc_middle[4fa9dd76776bb2aa]::ty::context::TypeckResults>>
  56:        0x10d64f0f8 - rustc_query_system[f18d9eae22d44560]::query::plumbing::get_query::<rustc_query_impl[d9716e6ec5023784]::queries::typeck, rustc_query_impl[d9716e6ec5023784]::plumbing::QueryCtxt>
  57:        0x10cdfe0fc - <rustc_middle[4fa9dd76776bb2aa]::hir::map::Map>::par_body_owners::<rustc_typeck[dc6010940c7a2a65]::check::typeck_item_bodies::{closure#0}>
  58:        0x10cd1b9c0 - rustc_typeck[dc6010940c7a2a65]::check::typeck_item_bodies
  59:        0x10d7e38e0 - <rustc_query_system[f18d9eae22d44560]::dep_graph::graph::DepGraph<rustc_middle[4fa9dd76776bb2aa]::dep_graph::dep_node::DepKind>>::with_task::<rustc_middle[4fa9dd76776bb2aa]::ty::context::TyCtxt, (), ()>
  60:        0x10d5bb5e0 - rustc_query_system[f18d9eae22d44560]::query::plumbing::try_execute_query::<rustc_query_impl[d9716e6ec5023784]::plumbing::QueryCtxt, rustc_query_system[f18d9eae22d44560]::query::caches::DefaultCache<(), ()>>
  61:        0x10d61ee08 - rustc_query_system[f18d9eae22d44560]::query::plumbing::get_query::<rustc_query_impl[d9716e6ec5023784]::queries::typeck_item_bodies, rustc_query_impl[d9716e6ec5023784]::plumbing::QueryCtxt>
  62:        0x10cdfd964 - <rustc_session[282d64e95cd3bf88]::session::Session>::time::<(), rustc_typeck[dc6010940c7a2a65]::check_crate::{closure#7}>
  63:        0x10cd86368 - rustc_typeck[dc6010940c7a2a65]::check_crate
  64:        0x10a84bf24 - rustc_interface[db32075e2a9c594e]::passes::analysis
  65:        0x10d7dbb48 - <rustc_query_system[f18d9eae22d44560]::dep_graph::graph::DepGraph<rustc_middle[4fa9dd76776bb2aa]::dep_graph::dep_node::DepKind>>::with_task::<rustc_middle[4fa9dd76776bb2aa]::ty::context::TyCtxt, (), core[bae5e8ef542d20e5]::result::Result<(), rustc_errors[3321b68084f70bb0]::ErrorGuaranteed>>
  66:        0x10d5b05d0 - rustc_query_system[f18d9eae22d44560]::query::plumbing::try_execute_query::<rustc_query_impl[d9716e6ec5023784]::plumbing::QueryCtxt, rustc_query_system[f18d9eae22d44560]::query::caches::DefaultCache<(), core[bae5e8ef542d20e5]::result::Result<(), rustc_errors[3321b68084f70bb0]::ErrorGuaranteed>>>
  67:        0x10d64f54c - rustc_query_system[f18d9eae22d44560]::query::plumbing::get_query::<rustc_query_impl[d9716e6ec5023784]::queries::analysis, rustc_query_impl[d9716e6ec5023784]::plumbing::QueryCtxt>
  68:        0x10a78266c - <rustc_interface[db32075e2a9c594e]::passes::QueryContext>::enter::<rustc_driver[8d2050f8429f7bc4]::run_compiler::{closure#1}::{closure#2}::{closure#3}, core[bae5e8ef542d20e5]::result::Result<(), rustc_errors[3321b68084f70bb0]::ErrorGuaranteed>>
  69:        0x10a7657f0 - <rustc_interface[db32075e2a9c594e]::interface::Compiler>::enter::<rustc_driver[8d2050f8429f7bc4]::run_compiler::{closure#1}::{closure#2}, core[bae5e8ef542d20e5]::result::Result<core[bae5e8ef542d20e5]::option::Option<rustc_interface[db32075e2a9c594e]::queries::Linker>, rustc_errors[3321b68084f70bb0]::ErrorGuaranteed>>
  70:        0x10a751bb4 - rustc_span[143ffa354e326ede]::with_source_map::<core[bae5e8ef542d20e5]::result::Result<(), rustc_errors[3321b68084f70bb0]::ErrorGuaranteed>, rustc_interface[db32075e2a9c594e]::interface::create_compiler_and_run<core[bae5e8ef542d20e5]::result::Result<(), rustc_errors[3321b68084f70bb0]::ErrorGuaranteed>, rustc_driver[8d2050f8429f7bc4]::run_compiler::{closure#1}>::{closure#1}>
  71:        0x10a765fe8 - <scoped_tls[e8c526b3ddc66487]::ScopedKey<rustc_span[143ffa354e326ede]::SessionGlobals>>::set::<rustc_interface[db32075e2a9c594e]::interface::run_compiler<core[bae5e8ef542d20e5]::result::Result<(), rustc_errors[3321b68084f70bb0]::ErrorGuaranteed>, rustc_driver[8d2050f8429f7bc4]::run_compiler::{closure#1}>::{closure#0}, core[bae5e8ef542d20e5]::result::Result<(), rustc_errors[3321b68084f70bb0]::ErrorGuaranteed>>
  72:        0x10a7b0b68 - std[ad4c17a2ddbcabe2]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[db32075e2a9c594e]::util::run_in_thread_pool_with_globals<rustc_interface[db32075e2a9c594e]::interface::run_compiler<core[bae5e8ef542d20e5]::result::Result<(), rustc_errors[3321b68084f70bb0]::ErrorGuaranteed>, rustc_driver[8d2050f8429f7bc4]::run_compiler::{closure#1}>::{closure#0}, core[bae5e8ef542d20e5]::result::Result<(), rustc_errors[3321b68084f70bb0]::ErrorGuaranteed>>::{closure#0}, core[bae5e8ef542d20e5]::result::Result<(), rustc_errors[3321b68084f70bb0]::ErrorGuaranteed>>
  73:        0x10a784ef8 - <<std[ad4c17a2ddbcabe2]::thread::Builder>::spawn_unchecked_<rustc_interface[db32075e2a9c594e]::util::run_in_thread_pool_with_globals<rustc_interface[db32075e2a9c594e]::interface::run_compiler<core[bae5e8ef542d20e5]::result::Result<(), rustc_errors[3321b68084f70bb0]::ErrorGuaranteed>, rustc_driver[8d2050f8429f7bc4]::run_compiler::{closure#1}>::{closure#0}, core[bae5e8ef542d20e5]::result::Result<(), rustc_errors[3321b68084f70bb0]::ErrorGuaranteed>>::{closure#0}, core[bae5e8ef542d20e5]::result::Result<(), rustc_errors[3321b68084f70bb0]::ErrorGuaranteed>>::{closure#1} as core[bae5e8ef542d20e5]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  74:        0x10335ba5c - std::sys::unix::thread::Thread::new::thread_start::h7b2f9b83fb320a20
  75:        0x1a7f1026c - __pthread_deallocate

error: internal compiler error: unexpected panic

note: 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: rustc 1.63.0 (4b91a6ea7 2022-08-08) running on aarch64-apple-darwin

note: compiler flags: --crate-type bin -C embed-bitcode=no -C split-debuginfo=unpacked -C debuginfo=2 -C incremental

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

query stack during panic:
#0 [evaluate_obligation] evaluating trait selection obligation `impl core::future::future::Future<Output = core::result::Result<crud_shared_types::SaveResult<<crud_resources::CrudClusterResource as crud_rs::resource::CrudResource>::Model>, crud_shared_types::CrudError>>: core::marker::Send`  |  = note: this failure-note originates in the macro `impl_add_crud_routes` (in Nightly builds, run with -Z macro-backtrace for more info)

#1 [typeck] type-checking `router::axum_clusters_crud_routes::add_crud_routes`
#2 [typeck_item_bodies] type-checking all item bodies
#3 [analysis] running analysis passes on this crate
end of query stack
error: could not compile `fcs-server`
[Finished running. Exit status: 101]
Backtrace

I am sadly unable to reproduce the error and rebuild the app with the backtrace env flag set..

steffahn commented 2 years ago

likely @rustbot label A-incr-comp