ICE: 'assertion failed: !impl_self_ty.has_infer_types()' on 2018-10-19 and newer

[thenewwazoo]

Building https://github.com/thenewwazoo/stm32l0x1-hal commit 338d77b051ce on 2018-10-19 or newer (tested up to today) fails with the following ICE:

thread 'main' panicked at 'assertion failed: !impl_self_ty.has_infer_types()', librustc_mir/borrow_check/nll/type_check/mod.rs:1033:21
stack backtrace:
   0: std::sys::unix::backtrace::tracing::imp::unwind_backtrace
   1: std::sys_common::backtrace::print
   2: std::panicking::default_hook::{{closure}}
   3: std::panicking::default_hook
   4: rustc::util::common::panic_hook
   5: std::panicking::rust_panic_with_hook
   6: std::panicking::begin_panic
   7: rustc_mir::borrow_check::nll::type_check::TypeChecker::relate_type_and_user_type
   8: <rustc_mir::borrow_check::nll::type_check::TypeVerifier<'a, 'b, 'gcx, 'tcx> as rustc::mir::visit::Visitor<'tcx>>::visit_constant
   9: <rustc_mir::borrow_check::nll::type_check::TypeVerifier<'a, 'b, 'gcx, 'tcx> as rustc::mir::visit::Visitor<'tcx>>::visit_mir
  10: rustc_mir::borrow_check::nll::type_check::type_check_internal
  11: rustc::ty::context::tls::with_related_context
  12: rustc::infer::InferCtxtBuilder::enter
  13: <rustc_mir::borrow_check::nll::type_check::TypeckMir as rustc_mir::transform::MirPass>::run_pass
  14: rustc_mir::transform::mir_const::{{closure}}
  15: rustc_mir::transform::mir_const
  16: rustc::ty::query::__query_compute::mir_const
  17: rustc::ty::query::<impl rustc::ty::query::config::QueryAccessors<'tcx> for rustc::ty::query::queries::mir_const<'tcx>>::compute
  18: rustc::ty::context::tls::with_context
  19: rustc::dep_graph::graph::DepGraph::with_task_impl
  20: rustc::ty::context::tls::with_related_context
  21: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::force_query_with_job
  22: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::get_query
  23: rustc::ty::query::<impl rustc::ty::context::TyCtxt<'a, 'tcx, 'lcx>>::mir_const
  24: rustc_mir::transform::mir_validated
  25: rustc::ty::query::__query_compute::mir_validated
  26: rustc::ty::query::<impl rustc::ty::query::config::QueryAccessors<'tcx> for rustc::ty::query::queries::mir_validated<'tcx>>::compute
  27: rustc::ty::context::tls::with_context
  28: rustc::dep_graph::graph::DepGraph::with_task_impl
  29: rustc::ty::context::tls::with_related_context
  30: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::force_query_with_job
  31: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::get_query
  32: rustc::ty::query::<impl rustc::ty::context::TyCtxt<'a, 'tcx, 'lcx>>::mir_validated
  33: rustc_mir::borrow_check::mir_borrowck
  34: rustc::ty::query::__query_compute::mir_borrowck
  35: rustc::ty::query::<impl rustc::ty::query::config::QueryAccessors<'tcx> for rustc::ty::query::queries::mir_borrowck<'tcx>>::compute
  36: rustc::ty::context::tls::with_context
  37: rustc::ty::context::tls::with_context
  38: rustc::dep_graph::graph::DepGraph::with_task_impl
  39: rustc::ty::context::tls::with_related_context
  40: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::force_query_with_job
  41: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::get_query
  42: rustc::ty::query::<impl rustc::ty::context::TyCtxt<'a, 'tcx, 'lcx>>::mir_borrowck
  43: rustc_mir::borrow_check::nll::type_check::TypeChecker::check_stmt
  44: rustc_mir::borrow_check::nll::type_check::TypeChecker::typeck_mir
  45: rustc_mir::borrow_check::nll::type_check::type_check_internal
  46: rustc::ty::context::tls::with_related_context
  47: rustc::infer::InferCtxtBuilder::enter
  48: <rustc_mir::borrow_check::nll::type_check::TypeckMir as rustc_mir::transform::MirPass>::run_pass
  49: rustc_mir::transform::mir_const::{{closure}}
  50: rustc_mir::transform::mir_const
  51: rustc::ty::query::__query_compute::mir_const
  52: rustc::ty::query::<impl rustc::ty::query::config::QueryAccessors<'tcx> for rustc::ty::query::queries::mir_const<'tcx>>::compute
  53: rustc::ty::context::tls::with_context
  54: rustc::dep_graph::graph::DepGraph::with_task_impl
  55: rustc::ty::context::tls::with_related_context
  56: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::force_query_with_job
  57: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::get_query
  58: rustc::ty::query::<impl rustc::ty::context::TyCtxt<'a, 'tcx, 'lcx>>::mir_const
  59: rustc_mir::transform::mir_validated
  60: rustc::ty::query::__query_compute::mir_validated
  61: rustc::ty::query::<impl rustc::ty::query::config::QueryAccessors<'tcx> for rustc::ty::query::queries::mir_validated<'tcx>>::compute
  62: rustc::ty::context::tls::with_context
  63: rustc::dep_graph::graph::DepGraph::with_task_impl
  64: rustc::ty::context::tls::with_related_context
  65: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::force_query_with_job
  66: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::get_query
  67: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::ensure_query
  68: rustc_borrowck::borrowck::borrowck
  69: rustc::ty::query::<impl rustc::ty::query::config::QueryAccessors<'tcx> for rustc::ty::query::queries::borrowck<'tcx>>::compute
  70: rustc::ty::context::tls::with_context
  71: rustc::dep_graph::graph::DepGraph::with_task_impl
  72: rustc::ty::context::tls::with_related_context
  73: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::force_query_with_job
  74: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::get_query
  75: rustc::ty::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::par_body_owners
  76: rustc_borrowck::borrowck::check_crate
  77: rustc::util::common::time
  78: rustc::ty::context::tls::enter_context
  79: <std::thread::local::LocalKey<T>>::with
  80: rustc::ty::context::TyCtxt::create_and_enter
  81: rustc_driver::driver::compile_input
  82: rustc_driver::run_compiler_with_pool
  83: rustc_driver::driver::spawn_thread_pool
  84: rustc_driver::run_compiler
  85: <scoped_tls::ScopedKey<T>>::set
  86: <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once
  87: __rust_maybe_catch_panic
  88: rustc_driver::run
  89: rustc_driver::main
  90: std::rt::lang_start::{{closure}}
  91: std::panicking::try::do_call
  92: __rust_maybe_catch_panic
  93: std::rt::lang_start_internal
  94: main
query stack during panic:
#0 [mir_const] processing `<gpio::PA0<MODE>>::into_analog::{{closure}}`
#1 [mir_validated] processing `<gpio::PA0<MODE>>::into_analog::{{closure}}`
#2 [mir_borrowck] processing `<gpio::PA0<MODE>>::into_analog::{{closure}}`
#3 [mir_const] processing `<gpio::PA0<MODE>>::into_analog`
#4 [mir_validated] processing `<gpio::PA0<MODE>>::into_analog`
#5 [borrowck] processing `<gpio::PA0<MODE>>::into_analog`
end of query stack

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/blob/master/CONTRIBUTING.md#bug-reports

note: rustc 1.31.0-nightly (78ff609d7 2018-10-19) running on x86_64-apple-darwin

note: compiler flags: -Z linker-flavor=ld -C debuginfo=2 -C incremental -C link-arg=-Tlink.x -C linker=arm-none-eabi-ld --crate-type lib

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

error: Could not compile `stm32l0x1-hal`.

[thenewwazoo]

This is a dupe of #55337