internal compiler error trying to compare incompatible constructors Single and Str

[catenacyber]

This is a first for me.
So, my report may not be perfect, but I am doing it since I read
we would appreciate a bug report

Code

The unminimized case is with Suricata
Way to reproduce it should be
install docker

git clone --depth 1 https://github.com/google/oss-fuzz
cd oss-fuzz
python infra/helper.py build_image suricata
python infra/helper.py build_fuzzers --sanitizer address --engine libfuzzer --architecture x86_64 suricata

Meta

rustc --version --verbose:

rustc 1.49.0-nightly (6bdae9edd 2020-10-29)
binary: rustc
commit-hash: 6bdae9edd0cc099daa6038bca469dc09b6fc078a
commit-date: 2020-10-29
host: x86_64-unknown-linux-gnu
release: 1.49.0-nightly

Error output

error: internal compiler error: compiler/rustc_mir_build/src/thir/pattern/_match.rs:931:18: trying to compare incompatible constructors Single and Str(Const { ty: &str, val: Value(Slice { data: Allocation { bytes: [80, 83, 69, 88, 69, 83, 86, 67], relocations: Relocations(SortedMap { data: [] }), init_mask: InitMask { blocks: [255], len: Size { raw: 8 } }, size: Size { raw: 8 }, align: Align { pow2: 0 }, mutability: Not, extra: () }, start: 0, end: 8 }) })
 
thread 'rustc' panicked at 'Box<Any>', compiler/rustc_errors/src/lib.rs:942:9
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
 
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 1.49.0-nightly (ffe52882e 2020-10-30) running on x86_64-unknown-linux-gnu
 
note: compiler flags: -Z unstable-options -Z sanitizer=address -C opt-level=3 -C embed-bitcode=no -C debuginfo=2 -C debuginfo=1 -C force-frame-pointers --crate-type staticlib --crate-type rlib
 
note: some of the compiler flags provided by cargo are hidden
 
query stack during panic:
#0 [check_match] match-checking `smb::smb::SMBState::get_service_for_guid`
#1 [analysis] running analysis passes on this crate
end of query stack
error: aborting due to previous error
 
error: could not compile `suricata`

Backtrace

thread 'rustc' panicked at 'Box<Any>', compiler/rustc_errors/src/lib.rs:945:9
stack backtrace:
   0: std::panicking::begin_panic
   1: rustc_errors::HandlerInner::bug
   2: rustc_errors::Handler::bug
   3: rustc_middle::util::bug::opt_span_bug_fmt::{{closure}}
   4: rustc_middle::ty::context::tls::with_opt::{{closure}}
   5: rustc_middle::ty::context::tls::with_opt
   6: rustc_middle::util::bug::opt_span_bug_fmt
   7: rustc_middle::util::bug::bug_fmt
   8: rustc_mir_build::thir::pattern::_match::Matrix::specialize_constructor
   9: <core::iter::adapters::Map<I,F> as core::iter::traits::iterator::Iterator>::try_fold
  10: rustc_mir_build::thir::pattern::_match::is_useful
  11: <core::iter::adapters::Map<I,F> as core::iter::traits::iterator::Iterator>::try_fold
  12: rustc_mir_build::thir::pattern::_match::is_useful
  13: <rustc_mir_build::thir::pattern::check_match::MatchVisitor as rustc_hir::intravisit::Visitor>::visit_expr
  14: <rustc_mir_build::thir::pattern::check_match::MatchVisitor as rustc_hir::intravisit::Visitor>::visit_expr
  15: rustc_hir::intravisit::walk_expr
  16: <rustc_mir_build::thir::pattern::check_match::MatchVisitor as rustc_hir::intravisit::Visitor>::visit_expr
  17: <rustc_mir_build::thir::pattern::check_match::MatchVisitor as rustc_hir::intravisit::Visitor>::visit_local
  18: rustc_hir::intravisit::walk_expr
  19: <rustc_mir_build::thir::pattern::check_match::MatchVisitor as rustc_hir::intravisit::Visitor>::visit_expr
  20: rustc_mir_build::thir::pattern::check_match::check_match
  21: rustc_middle::ty::query::<impl rustc_query_system::query::config::QueryAccessors<rustc_middle::ty::context::TyCtxt> for rustc_middle::ty::query::queries::check_match>::compute
  22: rustc_query_system::dep_graph::graph::DepGraph<K>::with_task_impl
  23: rustc_data_structures::stack::ensure_sufficient_stack
  24: rustc_query_system::query::plumbing::get_query_impl
  25: rustc_query_system::query::plumbing::ensure_query_impl
  26: rustc_interface::passes::analysis
  27: rustc_middle::ty::query::<impl rustc_query_system::query::config::QueryAccessors<rustc_middle::ty::context::TyCtxt> for rustc_middle::ty::query::queries::analysis>::compute
  28: rustc_query_system::dep_graph::graph::DepGraph<K>::with_task_impl
  29: rustc_middle::ty::query::plumbing::<impl rustc_query_system::query::QueryContext for rustc_middle::ty::context::TyCtxt>::start_query::{{closure}}::{{closure}}::{{closure}}
  30: rustc_query_system::query::plumbing::get_query_impl
  31: rustc_interface::passes::QueryContext::enter
  32: rustc_interface::queries::<impl rustc_interface::interface::Compiler>::enter
  33: rustc_span::with_source_map
  34: scoped_tls::ScopedKey<T>::set
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.

[jonas-schievink]

Duplicate of #78549