thread 'rustc' panicked at 'Not a type: DefIndex(4344)', compiler/rustc_metadata/src/rmeta/decoder.rs:908:32

[teymour-aldridge]

Clippy paniced while running.

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-clippy/issues/new

note: Clippy version: clippy 0.1.52 (45b3c28 2021-03-04)

query stack during panic:
#0 [type_of] computing type of `rocket::form::FromForm::Context`
#1 [analysis] running analysis passes on this crate
end of query stack
error: could not compile `main`

This was in a Github workflow run here: https://github.com/lovelace-edu/lovelace/runs/2043017937 (the relevant pull request is https://github.com/lovelace-edu/lovelace/pull/114 if that helps to find out where the bug comes from).

[WaffleLapkin]

Isn't this a dup of #6792?

[MikaelCall]

I have the same issue (and I've hade it since it was reported in #6792 despite upgrading about every second day after the fix was merged). Here's my error output if that helps:

> cargo clippy --version
clippy 0.1.52 (234781a 2021-03-07)

> rustc --version --verbose
rustc 1.52.0-nightly (234781afe 2021-03-07)
binary: rustc
commit-hash: 234781afe33d3f339b002f85f948046d8476cfc9
commit-date: 2021-03-07
host: x86_64-unknown-linux-gnu
release: 1.52.0-nightly
LLVM version: 12.0.0

Error output

> RUST_BACKTRACE=1 cargo clippy
    Checking xxx
    Checking xxx
thread 'rustc' panicked at 'Not a type: DefIndex(1496)', compiler/rustc_metadata/src/rmeta/decoder.rs:908:32
stack backtrace:
   0: rust_begin_unwind
             at /rustc/234781afe33d3f339b002f85f948046d8476cfc9/library/std/src/panicking.rs:493:5
   1: std::panicking::begin_panic_fmt
             at /rustc/234781afe33d3f339b002f85f948046d8476cfc9/library/std/src/panicking.rs:435:5
   2: rustc_metadata::rmeta::decoder::<impl rustc_metadata::creader::CrateMetadataRef>::get_type
   3: rustc_metadata::rmeta::decoder::cstore_impl::provide_extern::type_of
   4: rustc_middle::dep_graph::<impl rustc_query_system::dep_graph::DepKind for rustc_middle::dep_graph::dep_node::DepKind>::with_deps
   5: rustc_query_system::dep_graph::graph::DepGraph<K>::with_task_impl
   6: rustc_data_structures::stack::ensure_sufficient_stack
   7: rustc_query_system::query::plumbing::force_query_with_job
   8: rustc_query_system::query::plumbing::get_query_impl
   9: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::type_of
  10: <clippy_lints::default_numeric_fallback::NumericFallbackVisitor as rustc_hir::intravisit::Visitor>::visit_expr
  11: <clippy_lints::default_numeric_fallback::NumericFallbackVisitor as rustc_hir::intravisit::Visitor>::visit_expr
  12: rustc_hir::intravisit::walk_expr
  13: <clippy_lints::default_numeric_fallback::NumericFallbackVisitor as rustc_hir::intravisit::Visitor>::visit_expr
  14: <clippy_lints::default_numeric_fallback::NumericFallbackVisitor as rustc_hir::intravisit::Visitor>::visit_expr
  15: <clippy_lints::default_numeric_fallback::NumericFallbackVisitor as rustc_hir::intravisit::Visitor>::visit_expr
  16: <clippy_lints::default_numeric_fallback::DefaultNumericFallback as rustc_lint::passes::LateLintPass>::check_body
  17: <rustc_lint::late::LateLintPassObjects as rustc_lint::passes::LateLintPass>::check_body
  18: <rustc_lint::late::LateContextAndPass<T> as rustc_hir::intravisit::Visitor>::visit_nested_body
  19: <rustc_lint::late::LateContextAndPass<T> as rustc_hir::intravisit::Visitor>::visit_fn
  20: rustc_hir::intravisit::walk_impl_item
  21: rustc_hir::intravisit::Visitor::visit_nested_impl_item
  22: rustc_hir::intravisit::walk_impl_item_ref
  23: rustc_hir::intravisit::walk_item
  24: rustc_hir::intravisit::Visitor::visit_nested_item
  25: rustc_hir::intravisit::walk_mod
  26: <rustc_lint::late::LateContextAndPass<T> as rustc_hir::intravisit::Visitor>::visit_mod
  27: rustc_hir::intravisit::walk_item
  28: rustc_hir::intravisit::Visitor::visit_nested_item
  29: rustc_hir::intravisit::walk_mod
  30: <rustc_lint::late::LateContextAndPass<T> as rustc_hir::intravisit::Visitor>::visit_mod
  31: rustc_hir::intravisit::walk_item
  32: rustc_hir::intravisit::Visitor::visit_nested_item
  33: rustc_hir::intravisit::walk_mod
  34: <rustc_lint::late::LateContextAndPass<T> as rustc_hir::intravisit::Visitor>::visit_mod
  35: rustc_hir::intravisit::walk_crate
  36: rustc_lint::late::late_lint_pass_crate
  37: rustc_session::utils::<impl rustc_session::session::Session>::time
  38: std::panic::catch_unwind
  39: rustc_session::utils::<impl rustc_session::session::Session>::time
  40: rustc_interface::passes::analysis
  41: rustc_middle::dep_graph::<impl rustc_query_system::dep_graph::DepKind for rustc_middle::dep_graph::dep_node::DepKind>::with_deps
  42: rustc_query_system::dep_graph::graph::DepGraph<K>::with_task_impl
  43: rustc_data_structures::stack::ensure_sufficient_stack
  44: rustc_query_system::query::plumbing::force_query_with_job
  45: rustc_query_system::query::plumbing::get_query_impl
  46: <rustc_query_impl::Queries as rustc_middle::ty::query::QueryEngine>::analysis
  47: rustc_interface::passes::QueryContext::enter
  48: rustc_interface::queries::<impl rustc_interface::interface::Compiler>::enter
  49: rustc_span::with_source_map
  50: rustc_interface::interface::create_compiler_and_run
  51: rustc_span::with_session_globals
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-clippy/issues/new

note: Clippy version: clippy 0.1.52 (234781a 2021-03-07)

query stack during panic:
#0 [type_of] computing type of `Xxx`
#1 [analysis] running analysis passes on this crate
end of query stack

[Y-Nak]

This seems duplicates of #6882 and this has been already fixed in #6812, please see discussion of #6882 for more details.

[llogiq]

Closing as duplicate