"internal compiler error: unexpected panic" - when trying to run `cargo test` on nightly and stable #51516

dignifiedquire · 2018-06-12T10:51:29Z

I am working on a private project, and just discovered the following panic on the nightly compiler, when running cargo test

> RUST_BACKTRACE=1 cargo test
thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: (MoveData { move_paths: [MovePath { place: _0 }, MovePath { place: _1 }, MovePath { place: _2 }, MovePath { place: _3 }, MovePath { place: _4 }, MovePath { place: _5 }, MovePath { place: _6 }, MovePath { place: _7 }, MovePath { place: _8 }, MovePath { place: _9 }, MovePath { place: _10 }], moves: [mp7@bb0[7], mp7@bb2[0], mp6@bb2[5], mp8@bb2[5], mp3@bb3[0], mp8@bb4[0], mp6@bb4[1], mp6@bb5[0], mp6@bb6[0], mp5@bb7[0], mp10@bb7[0], mp10@bb7[1], mp5@bb7[2], mp4@bb7[3], mp4@bb7[4], mp9@bb7[5], mp3@bb7[6], mp3@bb8[0], mp0@bb8[1]], loc_map: LocationMap { map: [[[], [], [], [], [], [], [], [mo0]], [[]], [[mo1], [], [], [], [], [mo2, mo3]], [[mo4]], [[mo5], [mo6]], [[mo7]], [[mo8], [], []], [[mo9, mo10], [mo11], [mo12], [mo13], [mo14], [mo15], [mo16]], [[mo17], [mo18]]] }, path_map: [[mo18], [], [], [mo4, mo16, mo17], [mo13, mo14], [mo9, mo12], [mo2, mo6, mo7, mo8], [mo0, mo1], [mo3, mo5], [mo15], [mo10, mo11]], rev_lookup: MovePathLookup { locals: [mp0, mp1, mp2, mp3, mp4, mp5, mp6, mp7, mp8, mp9, mp10], projections: {} }, inits: [mp1@src/circuit/drgporep/mod.rs:268:22: 276:18 (Deep), mp2@src/circuit/drgporep/mod.rs:268:23: 268:38 (Deep), mp3@src/circuit/drgporep/mod.rs:268:27: 268:37 (Deep), mp7@src/circuit/drgporep/mod.rs:270:32: 271:34 (Deep), mp6@src/circuit/drgporep/mod.rs:270:32: 272:56 (NonPanicPathOnly), mp9@src/circuit/drgporep/mod.rs:273:37: 273:80 (Deep), mp8@src/circuit/drgporep/mod.rs:273:37: 273:80 (Deep), mp5@src/circuit/drgporep/mod.rs:270:32: 273:81 (NonPanicPathOnly), mp10@src/circuit/drgporep/mod.rs:274:37: 274:59 (NonPanicPathOnly), mp4@src/circuit/drgporep/mod.rs:269:26: 275:22 (Deep), mp0@src/circuit/drgporep/mod.rs:269:21: 275:23 (Deep)], init_loc_map: LocationMap { map: [[[], [in2], [], [], [], [], [in3], [in4]], [[]], [[], [], [], [in5], [in6], [in7]], [[]], [[], []], [[]], [[], [], [in8]], [[in9], [], [], [in10], [], [], []], [[], []]] }, init_path_map: [[in10], [in0], [in1], [in2], [in9], [in7], [in4], [in3], [in6], [in5], [in8]] }, [IllegalMove { cannot_move_out_of: IllegalMoveOrigin { span: src/circuit/drgporep/mod.rs:268:27: 268:37, kind: BorrowedContent { target_ty: (usize, drgporep::DataProof<'_>) } } }])', libcore/result.rs:945:5
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::continue_panic_fmt
   7: rust_begin_unwind
   8: core::panicking::panic_fmt
   9: core::result::unwrap_failed
  10: <rustc_mir::transform::elaborate_drops::ElaborateDrops as rustc_mir::transform::MirPass>::run_pass
  11: rustc_mir::transform::optimized_mir::{{closure}}
  12: rustc_mir::transform::optimized_mir
  13: rustc::ty::maps::__query_compute::optimized_mir
  14: rustc::ty::maps::<impl rustc::ty::maps::config::QueryConfig<'tcx> for rustc::ty::maps::queries::optimized_mir<'tcx>>::compute
  15: rustc::ty::context::tls::with_context
  16: rustc::dep_graph::graph::DepGraph::with_task_impl
  17: rustc::ty::context::tls::with_related_context
  18: rustc::ty::maps::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::force_query_with_job
  19: rustc::ty::maps::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::get_query
  20: rustc::ty::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::instance_mir
  21: rustc_mir::monomorphize::collector::collect_items_rec
  22: rustc_mir::monomorphize::collector::collect_items_rec
  23: rustc_mir::monomorphize::collector::collect_items_rec
  24: rustc_mir::monomorphize::collector::collect_items_rec
  25: rustc_mir::monomorphize::collector::collect_items_rec
  26: rustc_mir::monomorphize::collector::collect_items_rec
  27: rustc_mir::monomorphize::collector::collect_items_rec
  28: rustc_mir::monomorphize::collector::collect_items_rec
  29: rustc_mir::monomorphize::collector::collect_items_rec
  30: rustc_mir::monomorphize::collector::collect_items_rec
  31: rustc_mir::monomorphize::collector::collect_items_rec
  32: rustc_mir::monomorphize::collector::collect_items_rec
  33: rustc_mir::monomorphize::collector::collect_items_rec
  34: rustc_mir::monomorphize::collector::collect_crate_mono_items
  35: rustc::util::common::time
  36: rustc_codegen_llvm::base::collect_and_partition_mono_items
  37: rustc::ty::maps::<impl rustc::ty::maps::config::QueryConfig<'tcx> for rustc::ty::maps::queries::collect_and_partition_mono_items<'tcx>>::compute
  38: rustc::ty::context::tls::with_context
  39: rustc::dep_graph::graph::DepGraph::with_task_impl
  40: rustc::ty::context::tls::with_related_context
  41: rustc::ty::maps::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::force_query_with_job
  42: rustc::ty::maps::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::get_query
  43: rustc_codegen_llvm::base::codegen_crate
  44: <rustc_codegen_llvm::LlvmCodegenBackend as rustc_codegen_utils::codegen_backend::CodegenBackend>::codegen_crate
  45: rustc::util::common::time
  46: rustc_driver::driver::phase_4_codegen
  47: rustc_driver::driver::compile_input::{{closure}}
  48: rustc::ty::context::tls::enter_context
  49: <std::thread::local::LocalKey<T>>::with
  50: rustc::ty::context::TyCtxt::create_and_enter
  51: rustc_driver::driver::compile_input
  52: rustc_driver::run_compiler_with_pool
  53: <scoped_tls::ScopedKey<T>>::set
  54: <scoped_tls::ScopedKey<T>>::set
  55: syntax::with_globals
  56: <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once
  57: __rust_maybe_catch_panic
  58: rustc_driver::run
  59: rustc_driver::main
  60: std::rt::lang_start::{{closure}}
  61: std::panicking::try::do_call
  62: __rust_maybe_catch_panic
  63: std::rt::lang_start_internal
  64: main
query stack during panic:
#0 [optimized_mir] processing `<mod1>::<mod2>::tests::test_<name>::{{closure}}`
#1 [collect_and_partition_mono_items] collect_and_partition_mono_items
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 1.28.0-nightly (1d4dbf488 2018-06-11) running on x86_64-apple-darwin

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

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

error: Could not compile `proofs`.

To learn more, run the command again with --verbose.

Versions:

> cargo --version --verbose
cargo 1.28.0-nightly (e2348c2db 2018-06-07)
release: 1.28.0
commit-hash: e2348c2db296ce33428933c3ab8786d5f3c54a2e
commit-date: 2018-06-07
> rustc --version --verbose
rustc 1.28.0-nightly (1d4dbf488 2018-06-11)
binary: rustc
commit-hash: 1d4dbf488a4364413e7b9611866b7a5c75ce566f
commit-date: 2018-06-11
host: x86_64-apple-darwin
release: 1.28.0-nightly
LLVM version: 6.0

Operating System: macOS 10.13.3 (17D102)

The text was updated successfully, but these errors were encountered:

dignifiedquire · 2018-06-12T10:55:27Z

Update: I just tried to run the test on the stable toolchain, and get the same error

> RUST_BACKTRACE=1 cargo +stable test
thread 'rustc' panicked at 'called `Result::unwrap()` on an `Err` value: (MoveData { move_paths: [MovePath { place: _0 }, MovePath { place: _1 }, MovePath { place: _2 }, MovePath { place: _3 }, MovePath { place: _4 }, MovePath { place: _5 }, MovePath { place: _6 }, MovePath { place: _7 }, MovePath { place: _8 }, MovePath { place: _9 }, MovePath { place: _10 }], moves: [mp7@bb0[7], mp7@bb2[0], mp6@bb2[5], mp8@bb2[5], mp3@bb3[0], mp8@bb4[0], mp6@bb4[1], mp6@bb5[0], mp6@bb6[0], mp5@bb7[0], mp10@bb7[0], mp10@bb7[1], mp5@bb7[2], mp4@bb7[3], mp4@bb7[4], mp9@bb7[5], mp3@bb7[6], mp3@bb8[0], mp0@bb8[1]], loc_map: LocationMap { map: [[[], [], [], [], [], [], [], [mo0]], [[]], [[mo1], [], [], [], [], [mo2, mo3]], [[mo4]], [[mo5], [mo6]], [[mo7]], [[mo8], [], []], [[mo9, mo10], [mo11], [mo12], [mo13], [mo14], [mo15], [mo16]], [[mo17], [mo18]]] }, path_map: [[mo18], [], [], [mo4, mo16, mo17], [mo13, mo14], [mo9, mo12], [mo2, mo6, mo7, mo8], [mo0, mo1], [mo3, mo5], [mo15], [mo10, mo11]], rev_lookup: MovePathLookup { locals: [mp0, mp1, mp2, mp3, mp4, mp5, mp6, mp7, mp8, mp9, mp10], projections: {} }, inits: [mp1@src/circuit/drgporep/mod.rs:268:22: 276:18 (Deep), mp2@src/circuit/drgporep/mod.rs:268:23: 268:38 (Deep), mp3@src/circuit/drgporep/mod.rs:268:27: 268:37 (Deep), mp7@src/circuit/drgporep/mod.rs:270:32: 271:34 (Deep), mp6@src/circuit/drgporep/mod.rs:270:32: 272:56 (NonPanicPathOnly), mp9@src/circuit/drgporep/mod.rs:273:37: 273:80 (Deep), mp8@src/circuit/drgporep/mod.rs:273:37: 273:80 (Deep), mp5@src/circuit/drgporep/mod.rs:270:32: 273:81 (NonPanicPathOnly), mp10@src/circuit/drgporep/mod.rs:274:37: 274:59 (NonPanicPathOnly), mp4@src/circuit/drgporep/mod.rs:269:26: 275:22 (Deep), mp0@src/circuit/drgporep/mod.rs:269:21: 275:23 (Deep)], init_loc_map: LocationMap { map: [[[], [in2], [], [], [], [], [in3], [in4]], [[]], [[], [], [], [in5], [in6], [in7]], [[]], [[], []], [[]], [[], [], [in8]], [[in9], [], [], [in10], [], [], []], [[], []]] }, init_path_map: [[in10], [in0], [in1], [in2], [in9], [in7], [in4], [in3], [in6], [in5], [in8]] }, [IllegalMove { cannot_move_out_of: IllegalMoveOrigin { span: src/circuit/drgporep/mod.rs:268:27: 268:37, kind: BorrowedContent } }])', libcore/result.rs:945:5
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
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: core::ops::function::Fn::call
   5: std::panicking::rust_panic_with_hook
   6: std::panicking::begin_panic_fmt
   7: rust_begin_unwind
   8: core::panicking::panic_fmt
   9: core::result::unwrap_failed
  10: <rustc_mir::transform::elaborate_drops::ElaborateDrops as rustc_mir::transform::MirPass>::run_pass
  11: rustc_mir::transform::optimized_mir::{{closure}}
  12: rustc_mir::transform::optimized_mir
  13: rustc::dep_graph::graph::DepGraph::with_task_impl
  14: rustc_errors::Handler::track_diagnostics
  15: rustc::ty::maps::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::cycle_check
  16: rustc::ty::maps::<impl rustc::ty::maps::queries::optimized_mir<'tcx>>::force
  17: rustc::ty::maps::<impl rustc::ty::maps::queries::optimized_mir<'tcx>>::try_get
  18: rustc::ty::maps::TyCtxtAt::optimized_mir
  19: rustc::ty::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::instance_mir
  20: rustc_mir::monomorphize::collector::collect_items_rec
  21: rustc_mir::monomorphize::collector::collect_items_rec
  22: rustc_mir::monomorphize::collector::collect_items_rec
  23: rustc_mir::monomorphize::collector::collect_items_rec
  24: rustc_mir::monomorphize::collector::collect_items_rec
  25: rustc_mir::monomorphize::collector::collect_items_rec
  26: rustc_mir::monomorphize::collector::collect_items_rec
  27: rustc_mir::monomorphize::collector::collect_items_rec
  28: rustc_mir::monomorphize::collector::collect_items_rec
  29: rustc_mir::monomorphize::collector::collect_items_rec
  30: rustc_mir::monomorphize::collector::collect_items_rec
  31: rustc_mir::monomorphize::collector::collect_items_rec
  32: rustc_mir::monomorphize::collector::collect_items_rec
  33: rustc_mir::monomorphize::collector::collect_crate_mono_items
  34: rustc::util::common::time
  35: rustc_trans::base::collect_and_partition_translation_items
  36: rustc::dep_graph::graph::DepGraph::with_task_impl
  37: rustc_errors::Handler::track_diagnostics
  38: rustc::ty::maps::plumbing::<impl rustc::ty::context::TyCtxt<'a, 'gcx, 'tcx>>::cycle_check
  39: rustc::ty::maps::<impl rustc::ty::maps::queries::collect_and_partition_translation_items<'tcx>>::force
  40: rustc::ty::maps::<impl rustc::ty::maps::queries::collect_and_partition_translation_items<'tcx>>::try_get
  41: rustc::ty::maps::TyCtxtAt::collect_and_partition_translation_items
  42: rustc::ty::maps::<impl rustc::ty::context::TyCtxt<'a, 'tcx, 'lcx>>::collect_and_partition_translation_items
  43: rustc_trans::base::trans_crate
  44: <rustc_trans::LlvmTransCrate as rustc_trans_utils::trans_crate::TransCrate>::trans_crate
  45: rustc::util::common::time
  46: rustc_driver::driver::phase_4_translate_to_llvm
  47: rustc_driver::driver::compile_input::{{closure}}
  48: <std::thread::local::LocalKey<T>>::with
  49: <std::thread::local::LocalKey<T>>::with
  50: rustc::ty::context::TyCtxt::create_and_enter
  51: rustc_driver::driver::compile_input
  52: rustc_driver::run_compiler_impl
  53: syntax::with_globals

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 1.26.2 (594fb253c 2018-06-01) running on x86_64-apple-darwin

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

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

error: Could not compile `proofs`.

To learn more, run the command again with --verbose.

Versions:

> cargo +stable --version --verbose
cargo 1.26.0 (0e7c5a931 2018-04-06)
release: 1.26.0
commit-hash: 0e7c5a93159076952f609e05760e2458828d0d1f
commit-date: 2018-04-06
> rustc +stable --version --verbose
rustc 1.26.2 (594fb253c 2018-06-01)
binary: rustc
commit-hash: 594fb253c2b02b320c728391a425d028e6dc7a09
commit-date: 2018-06-01
host: x86_64-apple-darwin
release: 1.26.2
LLVM version: 6.0

@eddyb

Store scalar pair bools as i8 in memory We represent `bool` as `i1` in a `ScalarPair`, unlike other aggregates, to optimize IR for checked operators and the like. With this patch, we still do so when the pair is an immediate value, but we use the `i8` memory type when the value is loaded or stored as an LLVM aggregate. So `(bool, bool)` looks like an `{ i1, i1 }` immediate, but `{ i8, i8 }` in memory. When a pair is a direct function argument, `PassMode::Pair`, it is still passed using the immediate `i1` type, but as a return value it will use the `i8` memory type. Also, `bool`-like` enum tags will now use scalar pairs when possible, where they were previously excluded due to optimization issues. Fixes #51516. Closes #51566. r? @eddyb cc @nox

dignifiedquire changed the title ~~"internal compiler error: unexpected panic" - when trying to run cargo test on nightly~~ "internal compiler error: unexpected panic" - when trying to run cargo test on nightly and stable Jun 12, 2018

csmoe added the I-ICE Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️ label Jun 15, 2018

cuviper mentioned this issue Jun 15, 2018

Store scalar pair bools as i8 in memory #51583

Merged

bors closed this as completed in #51583 Jul 10, 2018

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"internal compiler error: unexpected panic" - when trying to run `cargo test` on nightly and stable #51516

"internal compiler error: unexpected panic" - when trying to run `cargo test` on nightly and stable #51516

dignifiedquire commented Jun 12, 2018 •

edited

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dignifiedquire commented Jun 12, 2018

"internal compiler error: unexpected panic" - when trying to run cargo test on nightly and stable #51516

"internal compiler error: unexpected panic" - when trying to run cargo test on nightly and stable #51516

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dignifiedquire commented Jun 12, 2018 • edited Loading

dignifiedquire commented Jun 12, 2018

"internal compiler error: unexpected panic" - when trying to run `cargo test` on nightly and stable #51516

"internal compiler error: unexpected panic" - when trying to run `cargo test` on nightly and stable #51516

dignifiedquire commented Jun 12, 2018 •

edited

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