found unstable fingerprints for predicates_of(core[3998]::fmt::Debug)/predicates_of(core[3998]::clone::Clone)

[engylemure]

Code

I was not able to find some way to create a smaller example since I didn't understand the problem itself
the problem was found here https://github.com/engylemure/juniper/tree/rustc_crash/juniper_actix when using
cargo run --example actix_server or cargo test, the problem seem to disappear when running the command with the only available feature cargo run --example actix_server --features subscriptions (the example don't make any usage of this feature) or cargo test --features subscriptions ( has a module with tests related to the feature ), the error itself seems to change depending on some unknown context I've found the errors with the Clone and Debug traits.

Meta

rustc --version --verbose:

rustc 1.53.0-nightly (07e0e2ec2 2021-03-24)
binary: rustc
commit-hash: 07e0e2ec268c140e607e1ac7f49f145612d0f597
commit-date: 2021-03-24
host: x86_64-unknown-linux-gnu
release: 1.53.0-nightly
LLVM version: 12.0.0

Error output

thread 'rustc' panicked at 'found unstable fingerprints for predicates_of(core[3998]::clone::Clone): GenericPredicates { parent: None, predicates: [(Binder(TraitPredicate(<Self as std::marker::Sized>)), /home/jordao/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/clone.rs:108:18: 108:23 (#0)), (Binder(TraitPredicate(<Self as std::clone::Clone>)), /home/jordao/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/clone.rs:108:1: 108:23 (#0))] }', /rustc/07e0e2ec268c140e607e1ac7f49f145612d0f597/compiler/rustc_query_system/src/query/plumbing.rs:593:5

thread 'rustc' panicked at 'found unstable fingerprints for predicates_of(core[3998]::fmt::Debug): GenericPredicates { parent: None, predicates: [(Binder(TraitPredicate(<Self as std::fmt::Debug>)), /home/jordao/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/library/core/src/fmt/mod.rs:550:1: 550:16 (#0))] }', /rustc/07e0e2ec268c140e607e1ac7f49f145612d0f597/compiler/rustc_query_system/src/query/plumbing.rs:593:5

Backtrace

stack backtrace:
   0: rust_begin_unwind
             at /rustc/07e0e2ec268c140e607e1ac7f49f145612d0f597/library/std/src/panicking.rs:493:5
   1: std::panicking::begin_panic_fmt
             at /rustc/07e0e2ec268c140e607e1ac7f49f145612d0f597/library/std/src/panicking.rs:435:5
   2: rustc_query_system::query::plumbing::incremental_verify_ich
   3: rustc_query_system::query::plumbing::load_from_disk_and_cache_in_memory
   4: rustc_query_system::query::plumbing::get_query_impl
   5: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::predicates_of
   6: rustc_ty_utils::ty::param_env
   7: rustc_middle::dep_graph::<impl rustc_query_system::dep_graph::DepKind for rustc_middle::dep_graph::dep_node::DepKind>::with_deps
   8: rustc_query_system::query::plumbing::load_from_disk_and_cache_in_memory
   9: rustc_data_structures::stack::ensure_sufficient_stack
  10: rustc_query_system::query::plumbing::get_query_impl
  11: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::param_env
  12: <rustc_lint::noop_method_call::NoopMethodCall as rustc_lint::passes::LateLintPass>::check_expr
  13: rustc_hir::intravisit::walk_expr
  14: rustc_hir::intravisit::walk_expr
  15: rustc_hir::intravisit::walk_expr
  16: rustc_hir::intravisit::walk_expr
  17: rustc_hir::intravisit::walk_expr
  18: rustc_hir::intravisit::walk_block
  19: rustc_hir::intravisit::walk_expr
  20: rustc_hir::intravisit::walk_arm
  21: rustc_hir::intravisit::walk_expr
  22: rustc_hir::intravisit::walk_block
  23: rustc_hir::intravisit::walk_expr
  24: rustc_hir::intravisit::walk_stmt
  25: rustc_hir::intravisit::walk_block
  26: rustc_hir::intravisit::walk_expr
  27: rustc_hir::intravisit::walk_arm
  28: rustc_hir::intravisit::walk_expr
  29: rustc_hir::intravisit::walk_expr
  30: rustc_hir::intravisit::walk_stmt
  31: rustc_hir::intravisit::walk_block
  32: rustc_hir::intravisit::walk_expr
  33: rustc_hir::intravisit::walk_body
  34: <rustc_lint::late::LateContextAndPass<T> as rustc_hir::intravisit::Visitor>::visit_fn
  35: rustc_hir::intravisit::walk_impl_item
  36: rustc_hir::intravisit::Visitor::visit_nested_impl_item
  37: rustc_hir::intravisit::walk_item
  38: rustc_hir::intravisit::Visitor::visit_nested_item
  39: rustc_hir::intravisit::walk_item
  40: rustc_hir::intravisit::Visitor::visit_nested_item
  41: rustc_hir::intravisit::walk_item
  42: rustc_hir::intravisit::Visitor::visit_nested_item
  43: rustc_hir::intravisit::walk_crate
  44: rustc_lint::late::late_lint_crate
  45: rustc_data_structures::sync::join
  46: std::panic::catch_unwind
  47: rustc_session::utils::<impl rustc_session::session::Session>::time
  48: rustc_interface::passes::analysis
  49: rustc_middle::dep_graph::<impl rustc_query_system::dep_graph::DepKind for rustc_middle::dep_graph::dep_node::DepKind>::with_deps
  50: rustc_query_system::dep_graph::graph::DepGraph<K>::with_task_impl
  51: rustc_data_structures::stack::ensure_sufficient_stack
  52: rustc_query_system::query::plumbing::force_query_with_job
  53: rustc_query_system::query::plumbing::get_query_impl
  54: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::analysis
  55: rustc_interface::passes::QueryContext::enter
  56: rustc_interface::queries::<impl rustc_interface::interface::Compiler>::enter
  57: rustc_span::with_source_map
  58: rustc_interface::interface::create_compiler_and_run
  59: scoped_tls::ScopedKey<T>::set

stack backtrace:
   0:     0x7fac7e5a4f80 - std::backtrace_rs::backtrace::libunwind::trace::h4dee703919bfd40a
                               at /rustc/07e0e2ec268c140e607e1ac7f49f145612d0f597/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
   1:     0x7fac7e5a4f80 - std::backtrace_rs::backtrace::trace_unsynchronized::h457e839f1a563e20
                               at /rustc/07e0e2ec268c140e607e1ac7f49f145612d0f597/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7fac7e5a4f80 - std::sys_common::backtrace::_print_fmt::h86a55fb30f8393c8
                               at /rustc/07e0e2ec268c140e607e1ac7f49f145612d0f597/library/std/src/sys_common/backtrace.rs:67:5
   3:     0x7fac7e5a4f80 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h7b3d6cac46d277e1
                               at /rustc/07e0e2ec268c140e607e1ac7f49f145612d0f597/library/std/src/sys_common/backtrace.rs:46:22
   4:     0x7fac7e6138df - core::fmt::write::h127419eb46f2ecc9
                               at /rustc/07e0e2ec268c140e607e1ac7f49f145612d0f597/library/core/src/fmt/mod.rs:1092:17
   5:     0x7fac7e599505 - std::io::Write::write_fmt::h6010cfbb4726588b
                               at /rustc/07e0e2ec268c140e607e1ac7f49f145612d0f597/library/std/src/io/mod.rs:1578:15
   6:     0x7fac7e5a8cbb - std::sys_common::backtrace::_print::h79b4f9652330cc9d
                               at /rustc/07e0e2ec268c140e607e1ac7f49f145612d0f597/library/std/src/sys_common/backtrace.rs:49:5
   7:     0x7fac7e5a8cbb - std::sys_common::backtrace::print::h330bb326a76af8cf
                               at /rustc/07e0e2ec268c140e607e1ac7f49f145612d0f597/library/std/src/sys_common/backtrace.rs:36:9
   8:     0x7fac7e5a8cbb - std::panicking::default_hook::{{closure}}::heb6a42a7d50a472e
                               at /rustc/07e0e2ec268c140e607e1ac7f49f145612d0f597/library/std/src/panicking.rs:208:50
   9:     0x7fac7e5a8783 - std::panicking::default_hook::h17e521ba6d68d6e1
                               at /rustc/07e0e2ec268c140e607e1ac7f49f145612d0f597/library/std/src/panicking.rs:225:9
  10:     0x7fac7ed7af2b - rustc_driver::report_ice::ha40982d59fc75b99
  11:     0x7fac6bf8dcf3 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h584c93a09b3d2ec7
                               at /rustc/07e0e2ec268c140e607e1ac7f49f145612d0f597/library/alloc/src/boxed.rs:1560:9
  12:     0x7fac6c002606 - proc_macro::bridge::client::<impl proc_macro::bridge::Bridge>::enter::{{closure}}::{{closure}}::h28db21f88ef96537
                               at /rustc/07e0e2ec268c140e607e1ac7f49f145612d0f597/library/proc_macro/src/bridge/client.rs:320:21
  13:     0x7fac7e5a93d0 - std::panicking::rust_panic_with_hook::h70db735e3a6e70cb
                               at /rustc/07e0e2ec268c140e607e1ac7f49f145612d0f597/library/std/src/panicking.rs:595:17
  14:     0x7fac7e5a8fa7 - std::panicking::begin_panic_handler::{{closure}}::h777c71c8e5a7e25c
                               at /rustc/07e0e2ec268c140e607e1ac7f49f145612d0f597/library/std/src/panicking.rs:497:13
  15:     0x7fac7e5a543c - std::sys_common::backtrace::__rust_end_short_backtrace::h3e9bf30168899554
                               at /rustc/07e0e2ec268c140e607e1ac7f49f145612d0f597/library/std/src/sys_common/backtrace.rs:141:18
  16:     0x7fac7e5a8f09 - rust_begin_unwind
                               at /rustc/07e0e2ec268c140e607e1ac7f49f145612d0f597/library/std/src/panicking.rs:493:5
  17:     0x7fac7e56e3fb - std::panicking::begin_panic_fmt::h0b6b6d9d830486ef
                               at /rustc/07e0e2ec268c140e607e1ac7f49f145612d0f597/library/std/src/panicking.rs:435:5
  18:     0x7fac80dc01b8 - rustc_query_system::query::plumbing::incremental_verify_ich::h6b4efb8c1a8c93e3
  19:     0x7fac80dca83b - rustc_query_system::query::plumbing::load_from_disk_and_cache_in_memory::h77ead32960e2aee5
  20:     0x7fac802da0b5 - rustc_query_system::query::plumbing::get_query_impl::h5afdd6968b77ec12
  21:     0x7fac80342879 - <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::predicates_of::h32dac6f2fa98c3a6
  22:     0x7fac809556ce - rustc_middle::ty::generics::GenericPredicates::instantiate_identity_into::h1196dfaaf84c8eee
  23:     0x7fac809553f8 - rustc_middle::ty::generics::GenericPredicates::instantiate_identity::h5f04b06c20f64a98
  24:     0x7fac811e297e - rustc_trait_selection::traits::object_safety::generics_require_sized_self::he6e18d24160a0f34
  25:     0x7fac811ea5e6 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &mut F>::call_once::hbcebb92b37a5cccc
  26:     0x7fac811f047c - <core::iter::adapters::flatten::FlatMap<I,U,F> as core::iter::traits::iterator::Iterator>::next::h5e335734b9352829
  27:     0x7fac811f7868 - <smallvec::SmallVec<A> as core::iter::traits::collect::Extend<<A as smallvec::Array>::Item>>::extend::hdd350753bf4b480c
  28:     0x7fac7fc80928 - rustc_arena::cold_path::h9b250ed5a3bc85f2
  29:     0x7fac811f9fe9 - rustc_middle::arena::Arena::alloc_from_iter::h42dcda90dff02f83
  30:     0x7fac811ee398 - rustc_trait_selection::traits::vtable_methods::hafa9f7ab181ce4bb
  31:     0x7fac80dd73a2 - rustc_query_impl::<impl rustc_query_system::query::config::QueryAccessors<rustc_query_impl::plumbing::QueryCtxt> for rustc_query_impl::queries::vtable_methods>::compute::h1b6ee8a26472eef2
  32:     0x7fac7f52a6b4 - rustc_middle::dep_graph::<impl rustc_query_system::dep_graph::DepKind for rustc_middle::dep_graph::dep_node::DepKind>::with_deps::h50a95aa7545156f0
  33:     0x7fac7f46d16c - rustc_query_system::dep_graph::graph::DepGraph<K>::with_ignore::h55d51e401d6e8419
  34:     0x7fac7f30aaeb - rustc_query_system::query::plumbing::load_from_disk_and_cache_in_memory::hd45d7d37cbab87fc
  35:     0x7fac7f548289 - rustc_data_structures::stack::ensure_sufficient_stack::h063b7583e48dbf58
  36:     0x7fac80d7a27e - rustc_query_system::query::plumbing::get_query_impl::hd9c49281a7a6a306
  37:     0x7fac80e4b0b9 - <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::vtable_methods::h05aff39f4e16928d
  38:     0x7fac804df813 - <rustc_mir::monomorphize::collector::MirNeighborCollector as rustc_middle::mir::visit::Visitor>::visit_rvalue::he80e5002ec5d5ad0
  39:     0x7fac804e32dc - rustc_mir::monomorphize::collector::collect_neighbours::hc21fc044f9447dab
  40:     0x7fac804dd1ec - rustc_mir::monomorphize::collector::collect_items_rec::h2375063f753630bc
  41:     0x7fac8102f673 - rustc_session::utils::<impl rustc_session::session::Session>::time::ha8841ca60bb1c740
  42:     0x7fac80f99f10 - rustc_mir::monomorphize::collector::collect_crate_mono_items::h94968778b7c20b54
  43:     0x7fac8061604f - rustc_mir::monomorphize::partitioning::collect_and_partition_mono_items::h1743864421ee0df1
  44:     0x7fac80dd94e6 - rustc_query_impl::<impl rustc_query_system::query::config::QueryAccessors<rustc_query_impl::plumbing::QueryCtxt> for rustc_query_impl::queries::collect_and_partition_mono_items>::compute::h23e28fb9afdb8334
  45:     0x7fac7f529b62 - rustc_middle::dep_graph::<impl rustc_query_system::dep_graph::DepKind for rustc_middle::dep_graph::dep_node::DepKind>::with_deps::h463a3b729f161942
  46:     0x7fac80e61869 - rustc_query_system::dep_graph::graph::DepGraph<K>::with_task_impl::h43645b10a8941ec7
  47:     0x7fac80ebf509 - rustc_data_structures::stack::ensure_sufficient_stack::h67b1fbe3ddcb697a
  48:     0x7fac80d92206 - rustc_query_system::query::plumbing::force_query_with_job::h08bdd5324049fe39
  49:     0x7fac7f2af625 - rustc_query_system::query::plumbing::force_query_impl::h58fff661780cdc7f
  50:     0x7fac7f283f6b - rustc_query_system::query::plumbing::force_query::h0eb10c725d601a39
  51:     0x7fac7f38f34a - rustc_query_impl::query_callbacks::collect_and_partition_mono_items::force_from_dep_node::h57d556edfa2b5425
  52:     0x7fac8035dad8 - rustc_query_system::dep_graph::graph::DepGraph<K>::try_mark_previous_green::hc25922935726b14d
  53:     0x7fac80ec82e0 - rustc_data_structures::stack::ensure_sufficient_stack::hc50a60b7b9896586
  54:     0x7fac80d5938a - rustc_query_system::query::plumbing::get_query_impl::h633d09d2ebd606f7
  55:     0x7fac80e4d9bf - <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::exported_symbols::h8f572c6518978285
  56:     0x7fac806562b3 - rustc_metadata::rmeta::encoder::EncodeContext::encode_crate_root::h7732508c6d637392
  57:     0x7fac81077464 - rustc_metadata::rmeta::encoder::encode_metadata_impl::h29556fc2914280c5
  58:     0x7fac8108e9f1 - rustc_data_structures::sync::join::h1abd71e9530a4f22
  59:     0x7fac810834ae - rustc_metadata::rmeta::decoder::cstore_impl::<impl rustc_middle::middle::cstore::CrateStore for rustc_metadata::creader::CStore>::encode_metadata::h60ba4f4dae49ceab
  60:     0x7fac81294b49 - rustc_middle::ty::context::TyCtxt::encode_metadata::h4a367306415477b3
  61:     0x7fac809f34d3 - rustc_interface::passes::QueryContext::enter::hd4dee32b33d2c6db
  62:     0x7fac809fa686 - rustc_interface::queries::Queries::ongoing_codegen::ha121babd46d82e91
  63:     0x7fac809ae456 - rustc_interface::queries::<impl rustc_interface::interface::Compiler>::enter::h2731ac3c02105c7c
  64:     0x7fac809e3071 - rustc_span::with_source_map::h94d38a1c3089ae35
  65:     0x7fac809af3ee - rustc_interface::interface::create_compiler_and_run::h2bc2789fb7dc8d5b
  66:     0x7fac809a9b78 - scoped_tls::ScopedKey<T>::set::hc4c30e2561747f9c
  67:     0x7fac809af7c4 - std::sys_common::backtrace::__rust_begin_short_backtrace::h904e8f4f3fa6a302
  68:     0x7fac809d10f5 - core::ops::function::FnOnce::call_once{{vtable.shim}}::he1a228660be11f81
  69:     0x7fac7e5b8cf3 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h7f7bdfc757a1add0
                               at /rustc/07e0e2ec268c140e607e1ac7f49f145612d0f597/library/alloc/src/boxed.rs:1546:9
  70:     0x7fac7e5b8cf3 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::ha294ad0fb99e9b3a
                               at /rustc/07e0e2ec268c140e607e1ac7f49f145612d0f597/library/alloc/src/boxed.rs:1546:9
  71:     0x7fac7e5b8cf3 - std::sys::unix::thread::Thread::new::thread_start::h4614854ae73cd6b0
                               at /rustc/07e0e2ec268c140e607e1ac7f49f145612d0f597/library/std/src/sys/unix/thread.rs:71:17
  72:     0x7fac7e4c3299 - start_thread
  73:     0x7fac7e3d8053 - clone
  74:                0x0 - <unknown>

error: internal compiler error: unexpected panic

note: the compiler unexpectedly panicked. this is a bug.

[messense]

The same error with Rust 1.52 running under cargo-tarpaulin

/usr/share/rust/.cargo/bin/cargo tarpaulin --out Xml --all
May 08 06:25:46.057  INFO cargo_tarpaulin: Running Tarpaulin
May 08 06:25:46.057  INFO cargo_tarpaulin: Building project
May 08 06:25:46.057  INFO cargo_tarpaulin::cargo: Cleaning project
...
thread 'rustc' panicked at 'found unstable fingerprints for exported_symbols(bstr[a229]): [(NonGeneric(DefId(19:1743 ~ bstr[a229]::unicode::fsm::grapheme_break_fwd::{impl#0}::deref)), Rust), (NonGeneric(DefId(19:1753 ~ bstr[a229]::unicode::fsm::grapheme_break_fwd::{impl#1}::initialize)), Rust), (NonGeneric(DefId(19:1760 ~ bstr[a229]::unicode::fsm::grapheme_break_rev::{impl#0}::deref)), Rust), (NonGeneric(DefId(19:1770 ~ bstr[a229]::unicode::fsm::grapheme_break_rev::{impl#1}::initialize)), Rust), (NonGeneric(DefId(19:1794 ~ bstr[a229]::unicode::fsm::sentence_break_fwd::{impl#0}::deref)), Rust), (NonGeneric(DefId(19:1804 ~ bstr[a229]::unicode::fsm::sentence_break_fwd::{impl#1}::initialize)), Rust), (Generic(DefId(22:139 ~ regex_automata[88e7]::dense_imp::{impl#7}::is_anchored), [&[u16], u16]), Rust), (Generic(DefId(22:139 ~ regex_automata[88e7]::dense_imp::{impl#7}::is_anchored), [&[u8], u8]), Rust), (Generic(DefId(22:135 ~ regex_automata[88e7]::dense_imp::{impl#7}::start_state), [&[u16], u16]), Rust), (Generic(DefId(22:135 ~ regex_automata[88e7]::dense_imp::{impl#7}::start_state), [&[u8], u8]), Rust), (Generic(DefId(22:137 ~ regex_automata[88e7]::dense_imp::{impl#7}::is_dead_state), [&[u16], u16]), Rust), (Generic(DefId(22:137 ~ regex_automata[88e7]::dense_imp::{impl#7}::is_dead_state), [&[u8], u8]), Rust), (Generic(DefId(22:136 ~ regex_automata[88e7]::dense_imp::{impl#7}::is_match_state), [&[u16], u16]), Rust), (Generic(DefId(22:136 ~ regex_automata[88e7]::dense_imp::{impl#7}::is_match_state), [&[u8], u8]), Rust), (Generic(DefId(22:141 ~ regex_automata[88e7]::dense_imp::{impl#7}::next_state_unchecked), [&[u16], u16]), Rust), (Generic(DefId(22:141 ~ regex_automata[88e7]::dense_imp::{impl#7}::next_state_unchecked), [&[u8], u8]), Rust), (Generic(DefId(22:138 ~ regex_automata[88e7]::dense_imp::{impl#7}::is_match_or_dead_state), [&[u16], u16]), Rust), (Generic(DefId(22:138 ~ regex_automata[88e7]::dense_imp::{impl#7}::is_match_or_dead_state), [&[u8], u8]), Rust), (NonGeneric(DefId(19:1777 ~ bstr[a229]::unicode::fsm::regional_indicator_rev::{impl#0}::deref)), Rust), (NonGeneric(DefId(19:1787 ~ bstr[a229]::unicode::fsm::regional_indicator_rev::{impl#1}::initialize)), Rust), (Generic(DefId(2:9271 ~ core[b0ed]::slice::index::{impl#5}::get_unchecked_mut), [u8]), Rust), (Generic(DefId(2:9273 ~ core[b0ed]::slice::index::{impl#5}::index_mut), [u8]), Rust), (Generic(DefId(5:6208 ~ alloc[9520]::vec::drain::{impl#6}::next_back), [ReErased, u8, std::alloc::Global]), Rust), (Generic(DefId(5:6209 ~ alloc[9520]::vec::drain::{impl#6}::next_back::{closure#0}), [ReErased, u8, std::alloc::Global, i32, extern "rust-call" fn((&u8,)) -> u8, ()]), Rust), (NonGeneric(DefId(19:1828 ~ bstr[a229]::unicode::fsm::whitespace_anchored_fwd::{impl#0}::deref)), Rust), (NonGeneric(DefId(19:1838 ~ bstr[a229]::unicode::fsm::whitespace_anchored_fwd::{impl#1}::initialize)), Rust), (NonGeneric(DefId(19:1845 ~ bstr[a229]::unicode::fsm::whitespace_anchored_rev::{impl#0}::deref)), Rust), (NonGeneric(DefId(19:1855 ~ bstr[a229]::unicode::fsm::whitespace_anchored_rev::{impl#1}::initialize)), Rust), (Generic(DefId(2:9290 ~ core[b0ed]::slice::index::{impl#7}::index), [u8]), Rust), (Generic(DefId(2:9291 ~ core[b0ed]::slice::index::{impl#7}::index_mut), [u8]), Rust), (Generic(DefId(2:9299 ~ core[b0ed]::slice::index::{impl#8}::index), [u8]), Rust), (Generic(DefId(2:9300 ~ core[b0ed]::slice::index::{impl#8}::index_mut), [u8]), Rust), (Generic(DefId(24:30 ~ lazy_static[bac5]::lazy::{impl#0}::get::{closure#0}), [regex_automata::sparse_imp::SparseDFA<&[u8], u32>, fn() -> regex_automata::sparse_imp::SparseDFA<&'static [u8], u32> {<bstr::unicode::fsm::sentence_break_fwd::SENTENCE_BREAK_FWD as std::ops::Deref>::deref::__static_ref_initialize}, i32, extern "rust-call" fn(()), (&&lazy_static::lazy::Lazy<regex_automata::sparse_imp::SparseDFA<&[u8], u32>>, fn() -> regex_automata::sparse_imp::SparseDFA<&'static [u8], u32> {<bstr::unicode::fsm::sentence_break_fwd::SENTENCE_BREAK_FWD as std::ops::Deref>::deref::__static_ref_initialize})]), Rust), (Generic(DefId(24:30 ~ lazy_static[bac5]::lazy::{impl#0}::get::{closure#0}), [regex_automata::dense_imp::DenseDFA<&[u8], u8>, fn() -> regex_automata::dense_imp::DenseDFA<&'static [u8], u8> {<bstr::unicode::fsm::whitespace_anchored_fwd::WHITESPACE_ANCHORED_FWD as std::ops::Deref>::deref::__static_ref_initialize}, i32, extern "rust-call" fn(()), (&&lazy_static::lazy::Lazy<regex_automata::dense_imp::DenseDFA<&[u8], u8>>, fn() -> regex_automata::dense_imp::DenseDFA<&'static [u8], u8> {<bstr::unicode::fsm::whitespace_anchored_fwd::WHITESPACE_ANCHORED_FWD as std::ops::Deref>::deref::__static_ref_initialize})]), Rust), (Generic(DefId(24:30 ~ lazy_static[bac5]::lazy::{impl#0}::get::{closure#0}), [regex_automata::sparse_imp::SparseDFA<&[u8], u16>, fn() -> regex_automata::sparse_imp::SparseDFA<&'static [u8], u16> {<bstr::unicode::fsm::grapheme_break_fwd::GRAPHEME_BREAK_FWD as std::ops::Deref>::deref::__static_ref_initialize}, i32, extern "rust-call" fn(()), (&&lazy_static::lazy::Lazy<regex_automata::sparse_imp::SparseDFA<&[u8], u16>>, fn() -> regex_automata::sparse_imp::SparseDFA<&'static [u8], u16> {<bstr::unicode::fsm::grapheme_break_fwd::GRAPHEME_BREAK_FWD as std::ops::Deref>::deref::__static_ref_initialize})]), Rust), (Generic(DefId(24:30 ~ lazy_static[bac5]::lazy::{impl#0}::get::{closure#0}), [regex_automata::sparse_imp::SparseDFA<&[u8], u32>, fn() -> regex_automata::sparse_imp::SparseDFA<&'static [u8], u32> {<bstr::unicode::fsm::word_break_fwd::WORD_BREAK_FWD as std::ops::Deref>::deref::__static_ref_initialize}, i32, extern "rust-call" fn(()), (&&lazy_static::lazy::Lazy<regex_automata::sparse_imp::SparseDFA<&[u8], u32>>, fn() -> regex_automata::sparse_imp::SparseDFA<&'static [u8], u32> {<bstr::unicode::fsm::word_break_fwd::WORD_BREAK_FWD as std::ops::Deref>::deref::__static_ref_initialize})]), Rust), (Generic(DefId(24:30 ~ lazy_static[bac5]::lazy::{impl#0}::get::{closure#0}), [regex_automata::dense_imp::DenseDFA<&[u8], u8>, fn() -> regex_automata::dense_imp::DenseDFA<&'static [u8], u8> {<bstr::unicode::fsm::regional_indicator_rev::REGIONAL_INDICATOR_REV as std::ops::Deref>::deref::__static_ref_initialize}, i32, extern "rust-call" fn(()), (&&lazy_static::lazy::Lazy<regex_automata::dense_imp::DenseDFA<&[u8], u8>>, fn() -> regex_automata::dense_imp::DenseDFA<&'static [u8], u8> {<bstr::unicode::fsm::regional_indicator_rev::REGIONAL_INDICATOR_REV as std::ops::Deref>::deref::__static_ref_initialize})]), Rust), (Generic(DefId(24:30 ~ lazy_static[bac5]::lazy::{impl#0}::get::{closure#0}), [regex_automata::sparse_imp::SparseDFA<&[u8], u16>, fn() -> regex_automata::sparse_imp::SparseDFA<&'static [u8], u16> {<bstr::unicode::fsm::grapheme_break_rev::GRAPHEME_BREAK_REV as std::ops::Deref>::deref::__static_ref_initialize}, i32, extern "rust-call" fn(()), (&&lazy_static::lazy::Lazy<regex_automata::sparse_imp::SparseDFA<&[u8], u16>>, fn() -> regex_automata::sparse_imp::SparseDFA<&'static [u8], u16> {<bstr::unicode::fsm::grapheme_break_rev::GRAPHEME_BREAK_REV as std::ops::Deref>::deref::__static_ref_initialize})]), Rust), (Generic(DefId(24:30 ~ lazy_static[bac5]::lazy::{impl#0}::get::{closure#0}), [regex_automata::dense_imp::DenseDFA<&[u16], u16>, fn() -> regex_automata::dense_imp::DenseDFA<&'static [u16], u16> {<bstr::unicode::fsm::whitespace_anchored_rev::WHITESPACE_ANCHORED_REV as std::ops::Deref>::deref::__static_ref_initialize}, i32, extern "rust-call" fn(()), (&&lazy_static::lazy::Lazy<regex_automata::dense_imp::DenseDFA<&[u16], u16>>, fn() -> regex_automata::dense_imp::DenseDFA<&'static [u16], u16> {<bstr::unicode::fsm::whitespace_anchored_rev::WHITESPACE_ANCHORED_REV as std::ops::Deref>::deref::__static_ref_initialize})]), Rust), (Generic(DefId(24:30 ~ lazy_static[bac5]::lazy::{impl#0}::get::{closure#0}), [regex_automata::sparse_imp::SparseDFA<&[u8], u16>, fn() -> regex_automata::sparse_imp::SparseDFA<&'static [u8], u16> {<bstr::unicode::fsm::simple_word_fwd::SIMPLE_WORD_FWD as std::ops::Deref>::deref::__static_ref_initialize}, i32, extern "rust-call" fn(()), (&&lazy_static::lazy::Lazy<regex_automata::sparse_imp::SparseDFA<&[u8], u16>>, fn() -> 
...
...
/rustc/88f19c6dab716c6281af7602e30f413e809c5974/compiler/rustc_query_system/src/query/plumbing.rs:593:5
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

error: internal compiler error: unexpected panic
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 1.52.0 (88f19c6da 2021-05-03) running on x86_64-unknown-linux-gnu

note: compiler flags: -C embed-bitcode=no -C debuginfo=2 -C incremental -C link-dead-code -C debuginfo=2

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

query stack during panic:
#0 [exported_symbols] exported_symbols
#1 [upstream_monomorphizations] collecting available upstream monomorphizations `crate0`
end of query stack

[jyn514]

#84116 (comment) is tracked by #85294. The original issues is a duplicate of #83259.