Compiler Panic on ARM - internal compiler error: unexpected panic

[bjbemister19]

I encountered this issue when attempting to compile our project on a Raspberry Pi running Raspbian, Target 'armv7-unknown-linux-gnueabihf'.

The project successfully compiles on MacOS Mojave which is targeting x86_64-apple-darwin, so I know that this is a platform specific issue.

Unfortunately I am fairly new to Rust, so I do not have the slightest idea what most of this means. But I would be willing to provide any other information that you request related to this bug.

Meta

Rust Version:
rustc 1.31.0-nightly (96064eb 2018-10-28)
binary: rustc
commit-hash: 96064eb
commit-date: 2018-10-28
host: armv7-unknown-linux-gnueabihf
release: 1.31.0-nightly
LLVM version: 8.0

Backtrace:
pi@raspberrypi:/testjigcode/jig/mysa-seveco-keyclient $ export RUST_BACKTRACE=1
pi@raspberrypi:/testjigcode/jig/mysa-seveco-keyclient $
pi@raspberrypi:/testjigcode/jig/mysa-seveco-keyclient $
pi@raspberrypi:/testjigcode/jig/mysa-seveco-keyclient $ cargo build
Compiling pyo3 v0.4.1
Compiling hyper v0.12.13
thread 'main' panicked at 'librustc/hir/map/hir_id_validator.rs:31:
HirIdValidator: The recorded owner of path segment super (id=36924) is ::server[0]::conn[0]::{{?}}[34] instead of ::server[0]::conn[0]::{{?}}[34]::{{?}}[0]
HirIdValidator: Same HirId ::server[0]::conn[0]::{{?}}[34]::{{?}}[0]/2 assigned for nodes path segment super (id=36924) and path segment spawn_all (id=89958)', librustc/util/bug.rs:47:26
stack backtrace:
0: std::sys::unix::backtrace::tracing::imp::unwind_backtrace
at libstd/sys/unix/backtrace/tracing/gcc_s.rs:49
1: std::sys_common::backtrace::_print
at libstd/sys_common/backtrace.rs:71
2: std::panicking::default_hook::{{closure}}
at libstd/sys_common/backtrace.rs:59
at libstd/panicking.rs:211
3: std::panicking::default_hook
at libstd/panicking.rs:227
4: rustc::util::common::panic_hook
5: std::panicking::rust_panic_with_hook
at libstd/panicking.rs:480
6: std::panicking::begin_panic
7: rustc::util::bug::opt_span_bug_fmt::{{closure}}
8: rustc::ty::context::tls::with_opt::{{closure}}
9: rustc::ty::context::tls::with_context_opt
10: rustc::ty::context::tls::with_opt
11: rustc::util::bug::opt_span_bug_fmt
12: rustc::util::bug::bug_fmt
13: rustc::hir::map::hir_id_validator::check_crate
14: rustc::hir::map::map_crate
15: rustc::util::common::time
16: rustc_driver::driver::compile_input
17: rustc_driver::run_compiler_with_pool
18: <scoped_tls::ScopedKey>::set
19: rustc_driver::run_compiler
20: <scoped_tls::ScopedKey>::set
21: syntax::with_globals
22: __rust_maybe_catch_panic
at libpanic_unwind/lib.rs:102
23: rustc_driver::run
24: rustc_driver::main
25: std::rt::lang_start::{{closure}}
26: std::panicking::try::do_call
at libstd/rt.rs:59
at libstd/panicking.rs:310
27: __rust_maybe_catch_panic
at libpanic_unwind/lib.rs:102
28: std::rt::lang_start_internal
at libstd/panicking.rs:289
at libstd/panic.rs:392
at libstd/rt.rs:58
29: main
30: __libc_start_main
query stack during panic:
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 (96064eb 2018-10-28) running on armv7-unknown-linux-gnueabihf

note: compiler flags: -C debuginfo=2 --crate-type lib

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

error: Could not compile hyper.
warning: build failed, waiting for other jobs to finish...
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', librustc_errors/lib.rs:600:9
stack backtrace:
0: std::sys::unix::backtrace::tracing::imp::unwind_backtrace
at libstd/sys/unix/backtrace/tracing/gcc_s.rs:49
1: std::sys_common::backtrace::_print
at libstd/sys_common/backtrace.rs:71
2: std::panicking::default_hook::{{closure}}
at libstd/sys_common/backtrace.rs:59
at libstd/panicking.rs:211
3: std::panicking::default_hook
at libstd/panicking.rs:227
4: rustc::util::common::panic_hook
5: std::panicking::rust_panic_with_hook
at libstd/panicking.rs:480
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::query::<impl rustc::ty::context::TyCtxt<'a, 'tcx, 'lcx>>::borrowck
63: rustc::ty::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::par_body_owners
64: rustc_borrowck::borrowck::check_crate
65: rustc::util::common::time
66: rustc::ty::context::tls::enter_context
67: <std::thread::local::LocalKey>::with
68: rustc::ty::context::TyCtxt::create_and_enter
69: rustc_driver::driver::compile_input
70: rustc_driver::run_compiler_with_pool
71: <scoped_tls::ScopedKey>::set
72: rustc_driver::run_compiler
73: <scoped_tls::ScopedKey>::set
74: syntax::with_globals
75: __rust_maybe_catch_panic
at libpanic_unwind/lib.rs:102
76: rustc_driver::run
77: rustc_driver::main
78: std::rt::lang_start::{{closure}}
79: std::panicking::try::do_call
at libstd/rt.rs:59
at libstd/panicking.rs:310
80: __rust_maybe_catch_panic
at libpanic_unwind/lib.rs:102
81: std::rt::lang_start_internal
at libstd/panicking.rs:289
at libstd/panic.rs:392
at libstd/rt.rs:58
82: main
83: __libc_start_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 (96064eb 2018-10-28) running on armv7-unknown-linux-gnueabihf

note: compiler flags: -C debuginfo=2 --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.

[phansch]

Duplicate of #55376

[jonas-schievink]

Indeed looks like a duplicate, and not something platform-specific either.

[bjbemister19]

I can confirm that this issue was solved. Just updated to 1.34.0-nightly and the code now compiles successfully. Thanks!!!