Repository: rust
Issue: panicked at 'called `Option::unwrap()` on a `None` value', compiler/rustc_metadata/src/rmeta/def_path_hash_map.rs:18:85
Labels: I-ICE,T-compiler,A-incr-comp,C-bug

I hit an ICE. I believe it is related to incremental compilation. The ICE went away after running `cargo clean`. I am no longer able to repro. I thought I would submit anyway.

### Code

No minimum repro available

### Meta

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`rustc --version --verbose`:
```
rustc 1.57.0 (f1edd0429 2021-11-29)
binary: rustc
commit-hash: f1edd0429582dd29cccacaf50fd134b05593bd9c
commit-date: 2021-11-29
host: x86_64-unknown-linux-gnu
release: 1.57.0
LLVM version: 13.0.0
```

### Error output

```
thread 'rustc' panicked at 'called `Option::unwrap()` on a `None` value', compiler/rustc_metadata/src/rmeta/def_path_hash_map.rs:18:85
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

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

~/Code/toasty rust-ice +8 ❯ RUST_BACKTRACE=1 cargo run --example todo
   Compiling examples v0.0.0 (/home/carllerche/Code/toasty/examples)
thread 'rustc' panicked at 'called `Option::unwrap()` on a `None` value', compiler/rustc_metadata/src/rmeta/def_path_hash_map.rs:18:85
stack backtrace:
   0: rust_begin_unwind
             at /rustc/f1edd0429582dd29cccacaf50fd134b05593bd9c/library/std/src/panicking.rs:517:5
   1: core::panicking::panic_fmt
             at /rustc/f1edd0429582dd29cccacaf50fd134b05593bd9c/library/core/src/panicking.rs:100:14
   2: core::panicking::panic
             at /rustc/f1edd0429582dd29cccacaf50fd134b05593bd9c/library/core/src/panicking.rs:50:5
   3: rustc_metadata::rmeta::decoder::cstore_impl::<impl rustc_session::cstore::CrateStore for rustc_metadata::creader::CStore>::def_path_hash_to_def_id
   4: <rustc_query_impl::on_disk_cache::OnDiskCache as rustc_middle::ty::context::OnDiskCache>::def_path_hash_to_def_id
   5: rustc_middle::dep_graph::dep_node::<impl rustc_query_system::dep_graph::dep_node::DepNodeParams<rustc_middle::ty::context::TyCtxt> for rustc_span::def_id::DefId>::recover
   6: rustc_query_system::query::plumbing::force_query
   7: rustc_query_system::dep_graph::graph::DepGraph<K>::try_mark_previous_green
   8: rustc_query_system::dep_graph::graph::DepGraph<K>::try_mark_previous_green
   9: rustc_query_system::query::plumbing::ensure_must_run
  10: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::typeck
  11: <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once
  12: rustc_data_structures::sync::par_for_each_in
  13: rustc_typeck::check::typeck_item_bodies
  14: rustc_query_system::dep_graph::graph::DepGraph<K>::with_task
  15: rustc_data_structures::stack::ensure_sufficient_stack
  16: rustc_query_system::query::plumbing::try_execute_query
  17: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::typeck_item_bodies
  18: rustc_session::utils::<impl rustc_session::session::Session>::time
  19: rustc_typeck::check_crate
  20: rustc_interface::passes::analysis
  21: rustc_query_system::dep_graph::graph::DepGraph<K>::with_task
  22: rustc_data_structures::stack::ensure_sufficient_stack
  23: rustc_query_system::query::plumbing::try_execute_query
  24: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::analysis
  25: rustc_interface::passes::QueryContext::enter
  26: rustc_interface::queries::<impl rustc_interface::interface::Compiler>::enter
  27: rustc_span::with_source_map
  28: scoped_tls::ScopedKey<T>::set
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

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 1.57.0 (f1edd0429 2021-11-29) running on x86_64-unknown-linux-gnu

note: compiler flags: -C embed-bitcode=no -C debuginfo=2 -C incremental --crate-type bin

note: some of the compiler flags provided by cargo are hidden

query stack during panic:
#0 [typeck_item_bodies] type-checking all item bodies
#1 [analysis] running analysis passes on this crate
end of query stack
thread 'rustc' panicked at 'called `Option::unwrap()` on a `None` value', compiler/rustc_metadata/src/rmeta/def_path_hash_map.rs:18:85
stack backtrace:
   0: rust_begin_unwind
             at /rustc/f1edd0429582dd29cccacaf50fd134b05593bd9c/library/std/src/panicking.rs:517:5
   1: core::panicking::panic_fmt
             at /rustc/f1edd0429582dd29cccacaf50fd134b05593bd9c/library/core/src/panicking.rs:100:14
   2: core::panicking::panic
             at /rustc/f1edd0429582dd29cccacaf50fd134b05593bd9c/library/core/src/panicking.rs:50:5
   3: rustc_metadata::rmeta::decoder::cstore_impl::<impl rustc_session::cstore::CrateStore for rustc_metadata::creader::CStore>::def_path_hash_to_def_id
   4: <rustc_query_impl::on_disk_cache::OnDiskCache as rustc_middle::ty::context::OnDiskCache>::def_path_hash_to_def_id
   5: rustc_middle::dep_graph::dep_node::<impl rustc_query_system::dep_graph::dep_node::DepNodeParams<rustc_middle::ty::context::TyCtxt> for rustc_span::def_id::DefId>::recover
   6: rustc_query_system::query::plumbing::force_query
   7: rustc_query_system::dep_graph::graph::DepGraph<K>::try_mark_previous_green
   8: rustc_query_system::query::plumbing::ensure_must_run
   9: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::typeck
  10: <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once
  11: rustc_data_structures::sync::par_for_each_in
  12: rustc_typeck::check::typeck_item_bodies
  13: rustc_query_system::dep_graph::graph::DepGraph<K>::with_task
  14: rustc_data_structures::stack::ensure_sufficient_stack
  15: rustc_query_system::query::plumbing::try_execute_query
  16: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::typeck_item_bodies
  17: rustc_session::utils::<impl rustc_session::session::Session>::time
  18: rustc_typeck::check_crate
  19: rustc_interface::passes::analysis
  20: rustc_query_system::dep_graph::graph::DepGraph<K>::with_task
  21: rustc_data_structures::stack::ensure_sufficient_stack
  22: rustc_query_system::query::plumbing::try_execute_query
  23: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::analysis
  24: rustc_interface::passes::QueryContext::enter
  25: rustc_interface::queries::<impl rustc_interface::interface::Compiler>::enter
  26: rustc_span::with_source_map
  27: scoped_tls::ScopedKey<T>::set
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

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 1.57.0 (f1edd0429 2021-11-29) running on x86_64-unknown-linux-gnu

note: compiler flags: -C embed-bitcode=no -C debuginfo=2 -C incremental --crate-type bin

note: some of the compiler flags provided by cargo are hidden
```