Closed
Description
When trying to run the example code for the pyo3 library on mac I've been running into an error with specialization.
binary: rustc
commit-hash: d586d5d2f51489821b471f20959333558c24b129
commit-date: 2018-10-29
host: x86_64-apple-darwin
release: 1.31.0-nightly
LLVM version: 8.0
cargo rustc --release -- -C link-arg=-undefined -C link-arg=dynamic_lookup
Compiling pyo3 v0.4.1
error: internal compiler error: librustc/traits/specialize/mod.rs:104: When translating substitutions for specialization, the expected specialization failed to hold
thread 'main' panicked at 'Box<Any>', librustc_errors/lib.rs:600:9
note: Run with `RUST_BACKTRACE=1` for a backtrace.
error: aborting due to previous error
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 (d586d5d2f 2018-10-29) running on x86_64-apple-darwin
note: compiler flags: -C opt-level=3 --crate-type lib
note: some of the compiler flags provided by cargo are hidden
error: Could not compile `pyo3`.
To learn more, run the command again with --verbose.
craighills@chills-macbook:~/code/pyo3test|master⚡
⇒ RUST_BACKTRACE=1 cargo rustc --release -- -C link-arg=-undefined -C link-arg=dynamic_lookup
Compiling pyo3 v0.4.1
error: internal compiler error: librustc/traits/specialize/mod.rs:104: When translating substitutions for specialization, the expected specialization failed to hold
thread 'main' panicked at 'Box<Any>', librustc_errors/lib.rs:600:9
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_errors::Handler::bug
8: rustc::util::bug::opt_span_bug_fmt::{{closure}}
9: rustc::ty::context::tls::with_opt::{{closure}}
10: rustc::ty::context::tls::with_context_opt
11: rustc::ty::context::tls::with_opt
12: rustc::util::bug::opt_span_bug_fmt
13: rustc::util::bug::bug_fmt
14: rustc::traits::specialize::translate_substs::{{closure}}
15: rustc::traits::specialize::translate_substs
16: rustc::ty::context::tls::with_related_context
17: rustc::infer::InferCtxtBuilder::enter
18: rustc::traits::specialize::find_associated_item
19: rustc::ty::instance::Instance::resolve
20: rustc_mir::lints::check
21: rustc::ty::context::tls::with_related_context
22: rustc::infer::InferCtxtBuilder::enter
23: rustc_mir::build::mir_build
24: rustc_mir::transform::mir_built
25: rustc::ty::query::__query_compute::mir_built
26: rustc::ty::query::<impl rustc::ty::query::config::QueryAccessors<'tcx> for rustc::ty::query::queries::mir_built<'tcx>>::compute
27: rustc::dep_graph::graph::DepGraph::with_task_impl
28: rustc::ty::context::tls::with_related_context
29: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::force_query_with_job
30: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::get_query
31: rustc::ty::query::<impl rustc::ty::context::TyCtxt<'a, 'tcx, 'lcx>>::mir_built
32: rustc_mir::transform::check_unsafety::unsafety_check_result
33: rustc::ty::query::__query_compute::unsafety_check_result
34: rustc::ty::query::<impl rustc::ty::query::config::QueryAccessors<'tcx> for rustc::ty::query::queries::unsafety_check_result<'tcx>>::compute
35: rustc::dep_graph::graph::DepGraph::with_task_impl
36: rustc::ty::context::tls::with_related_context
37: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::force_query_with_job
38: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::get_query
39: rustc::ty::query::<impl rustc::ty::context::TyCtxt<'a, 'tcx, 'lcx>>::unsafety_check_result
40: rustc_mir::transform::mir_const
41: rustc::ty::query::__query_compute::mir_const
42: rustc::ty::query::<impl rustc::ty::query::config::QueryAccessors<'tcx> for rustc::ty::query::queries::mir_const<'tcx>>::compute
43: rustc::dep_graph::graph::DepGraph::with_task_impl
44: rustc::ty::context::tls::with_related_context
45: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::force_query_with_job
46: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::get_query
47: rustc::ty::query::<impl rustc::ty::context::TyCtxt<'a, 'tcx, 'lcx>>::mir_const
48: rustc_mir::transform::mir_validated
49: rustc::ty::query::__query_compute::mir_validated
50: rustc::ty::query::<impl rustc::ty::query::config::QueryAccessors<'tcx> for rustc::ty::query::queries::mir_validated<'tcx>>::compute
51: rustc::dep_graph::graph::DepGraph::with_task_impl
52: rustc::ty::context::tls::with_related_context
53: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::force_query_with_job
54: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::get_query
55: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::ensure_query
56: rustc_borrowck::borrowck::borrowck
57: rustc::ty::query::<impl rustc::ty::query::config::QueryAccessors<'tcx> for rustc::ty::query::queries::borrowck<'tcx>>::compute
58: rustc::dep_graph::graph::DepGraph::with_task_impl
59: rustc::ty::context::tls::with_related_context
60: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::force_query_with_job
61: rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::get_query
62: rustc::ty::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::par_body_owners
63: rustc_borrowck::borrowck::check_crate
64: rustc::util::common::time
65: rustc::ty::context::tls::enter_context
66: <std::thread::local::LocalKey<T>>::with
67: rustc::ty::context::TyCtxt::create_and_enter
68: rustc_driver::driver::compile_input
69: rustc_driver::run_compiler_with_pool
70: rustc_driver::driver::spawn_thread_pool
71: rustc_driver::run_compiler
72: <scoped_tls::ScopedKey<T>>::set
73: syntax::with_globals
74: __rust_maybe_catch_panic
75: rustc_driver::run
76: rustc_driver::main
77: std::rt::lang_start::{{closure}}
78: std::panicking::try::do_call
79: __rust_maybe_catch_panic
80: std::rt::lang_start_internal
81: main
query stack during panic:
#0 [mir_built] processing `freelist::<impl typeob::PyObjectAlloc<T> for T>::dealloc`
#1 [unsafety_check_result] processing `freelist::<impl typeob::PyObjectAlloc<T> for T>::dealloc`
#2 [mir_const] processing `freelist::<impl typeob::PyObjectAlloc<T> for T>::dealloc`
#3 [mir_validated] processing `freelist::<impl typeob::PyObjectAlloc<T> for T>::dealloc`
#4 [borrowck] processing `freelist::<impl typeob::PyObjectAlloc<T> for T>::dealloc`
end of query stack
error: aborting due to previous error
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 (d586d5d2f 2018-10-29) running on x86_64-apple-darwin
note: compiler flags: -C opt-level=3 --crate-type lib
note: some of the compiler flags provided by cargo are hidden
error: Could not compile `pyo3`.
To learn more, run the command again with --verbose.