ICE on rustc 1.41.0-nightly (25d8a9494 2019-11-29) running on x86_64-apple-darwin

I encounter an ICE:

with rustc 1.41.0-nightly (25d8a94 2019-11-29) running on x86_64-apple-darwin
when compiling https://github.com/maghoff/pixu.rs/tree/ice-2019-11-29

The same code does not ICE when using nightly-2019-11-27-x86_64-apple-darwin

Sorry, I haven't taken the time to make a minimal reproduction example.

Can you post the ICE message and backtrace?

Certainly! Although it is not the best stacktrace I have ever seen.

thread 'rustc' panicked at 'called `Option::unwrap()` on a `None` value', /rustc/25d8a9494ca6d77361e47c1505ecf640b168819e/src/libcore/macros/mod.rs:15:40
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace.

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 1.41.0-nightly (25d8a9494 2019-11-29) running on x86_64-apple-darwin

note: compiler flags: -C debuginfo=2 -C incremental --crate-type bin

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

error: could not compile `pixurs`.

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

Backtrace:

    Checking pixurs v0.1.0 (/Users/mag/prog/pixu.rs)
thread 'rustc' panicked at 'called `Option::unwrap()` on a `None` value', /rustc/25d8a9494ca6d77361e47c1505ecf640b168819e/src/libcore/macros/mod.rs:15:40
stack backtrace:
   0:        0x111291e65 - <unknown>
   1:        0x1112c8ba0 - <unknown>
   2:        0x1112856eb - <unknown>
   3:        0x111296273 - <unknown>
   4:        0x111295f7a - <unknown>
   5:        0x10e6f2bc2 - <unknown>
   6:        0x111296a8c - <unknown>
   7:        0x111296519 - <unknown>
   8:        0x111296419 - <unknown>
   9:        0x1112c224c - <unknown>
  10:        0x1112c21a4 - <unknown>
  11:        0x10efb7eb1 - <unknown>
  12:        0x10efd2b29 - <unknown>
  13:        0x10efd2336 - <unknown>
  14:        0x10efcc64d - <unknown>
  15:        0x10efc93c6 - <unknown>
  16:        0x10f283291 - <unknown>
  17:        0x10efc7620 - <unknown>
  18:        0x10ef52f83 - <unknown>
  19:        0x10f2723da - <unknown>
  20:        0x10f359b05 - <unknown>
  21:        0x10f35e3c0 - <unknown>
  22:        0x10f3515da - <unknown>
  23:        0x10f2c5281 - <unknown>
  24:        0x10efc7fc6 - <unknown>
  25:        0x10f283291 - <unknown>
  26:        0x10efc7620 - <unknown>
  27:        0x10e80ee53 - <unknown>
  28:        0x10e7e558f - <unknown>
  29:        0x10e7a5a72 - <unknown>
  30:        0x10e801489 - <unknown>
  31:        0x10e7e511e - <unknown>
  32:        0x10e818e13 - <unknown>
  33:        0x10e6aaa7f - <unknown>
  34:        0x10e6c812b - <unknown>
  35:        0x10e6fd67a - <unknown>
  36:        0x10e6bfd1c - <unknown>
  37:        0x10e76d54b - <unknown>
  38:        0x10e6bfb3b - <unknown>
  39:        0x10e6f62b7 - <unknown>
  40:        0x10e6ade34 - <unknown>
  41:        0x10e6a7712 - <unknown>
  42:        0x10e6c9455 - <unknown>
  43:        0x10e6a853c - <unknown>
  44:        0x1112a61ff - <unknown>
  45:        0x10e6c1057 - <unknown>
  46:        0x111277cae - <unknown>
  47:        0x1112a4f3e - <unknown>
  48:     0x7fff59cbd2eb - <unknown>
  49:     0x7fff59cc0249 - <unknown>

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 1.41.0-nightly (25d8a9494 2019-11-29) running on x86_64-apple-darwin

note: compiler flags: -C debuginfo=2 -C incremental --crate-type bin

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

query stack during panic:
#0 [mir_borrowck] processing `site::auth::initiate_auth::InitiateAuth::<S>::try_post::{{closure}}#0`
#1 [mir_borrowck] processing `site::auth::initiate_auth::InitiateAuth::<S>::try_post`
#2 [analysis] running analysis passes on this crate
end of query stack
error: could not compile `pixurs`.

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

Backtrace:

thread 'rustc' panicked at 'called `Option::unwrap()` on a `None` value', /rustc/fdc0011561c6365c596dfd8fa1ef388162bc89c7/src/libcore/macros/mod.rs:15:40
stack backtrace:
   0:     0x7f6c56fc45d4 - backtrace::backtrace::libunwind::trace::hc586f95f659e6084
                               at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/libunwind.rs:88
   1:     0x7f6c56fc45d4 - backtrace::backtrace::trace_unsynchronized::ha9827fdb593fd967
                               at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/mod.rs:66
   2:     0x7f6c56fc45d4 - std::sys_common::backtrace::_print_fmt::h00c888c95e07165a
                               at src/libstd/sys_common/backtrace.rs:84
   3:     0x7f6c56fc45d4 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h8407ffb2d059bc74
                               at src/libstd/sys_common/backtrace.rs:61
   4:     0x7f6c56ffccec - core::fmt::write::h4165a12a3856465f
                               at src/libcore/fmt/mod.rs:1024
   5:     0x7f6c56fb8937 - std::io::Write::write_fmt::h499a0566ceaa0048
                               at src/libstd/io/mod.rs:1428
   6:     0x7f6c56fc8a7e - std::sys_common::backtrace::_print::h05fbb11587298e2b
                               at src/libstd/sys_common/backtrace.rs:65
   7:     0x7f6c56fc8a7e - std::sys_common::backtrace::print::h8021a3ed2b5ff07e
                               at src/libstd/sys_common/backtrace.rs:50
   8:     0x7f6c56fc8a7e - std::panicking::default_hook::{{closure}}::hd3a6326f5c6c149f
                               at src/libstd/panicking.rs:193
   9:     0x7f6c56fc8771 - std::panicking::default_hook::h7088fb00a0cb1faf
                               at src/libstd/panicking.rs:210
  10:     0x7f6c5750e833 - rustc_driver::report_ice::h7d5c1d6a7c4e3fb5
  11:     0x7f6c49f8c918 - <alloc::boxed::Box<F> as core::ops::function::Fn<A>>::call::hd4fe407a7a08ec81
                               at /rustc/fdc0011561c6365c596dfd8fa1ef388162bc89c7/src/liballoc/boxed.rs:983
  12:     0x7f6c49f6a814 - proc_macro::bridge::client::<impl proc_macro::bridge::Bridge>::enter::{{closure}}::{{closure}}::hb9b2f3bc1e19f0f3
                               at /rustc/fdc0011561c6365c596dfd8fa1ef388162bc89c7/src/libproc_macro/bridge/client.rs:305
  13:     0x7f6c56fc9230 - std::panicking::rust_panic_with_hook::h6b223bff7721d4c1
                               at src/libstd/panicking.rs:475
  14:     0x7f6c56fc8d0e - rust_begin_unwind
                               at src/libstd/panicking.rs:375
  15:     0x7f6c56ff678e - core::panicking::panic_fmt::hed15e18c2b62a00c
                               at src/libcore/panicking.rs:82
  16:     0x7f6c56ff66da - core::panicking::panic::h676e2cfc7b84ffe6
                               at src/libcore/panicking.rs:49
  17:     0x7f6c57ec3df6 - rustc_mir::borrow_check::conflict_errors::<impl rustc_mir::borrow_check::MirBorrowckCtxt>::report_use_of_moved_or_uninitialized::hee7349248e2bcffb
  18:     0x7f6c57ede704 - rustc_mir::borrow_check::MirBorrowckCtxt::check_if_path_or_subpath_is_moved::he52872991422c41b
  19:     0x7f6c57eddf47 - rustc_mir::borrow_check::MirBorrowckCtxt::consume_operand::h9209f248792f8178
  20:     0x7f6c57ed83d7 - <rustc_mir::borrow_check::MirBorrowckCtxt as rustc_mir::dataflow::DataflowResultsConsumer>::visit_statement_entry::h3716ddc9fad46cc7
  21:     0x7f6c57ed4e89 - rustc_mir::borrow_check::do_mir_borrowck::h820ef35edc5ac038
  22:     0x7f6c581c205a - rustc::ty::context::GlobalCtxt::enter_local::h1ed6b75232f132b5
  23:     0x7f6c57ed2cfa - rustc_mir::borrow_check::mir_borrowck::h45f028e130853501
  24:     0x7f6c57e70b23 - rustc::ty::query::__query_compute::mir_borrowck::h25976ba17001de12
  25:     0x7f6c58195b58 - rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt>::get_query::hc4244918c0627345
  26:     0x7f6c582d4f07 - rustc_mir::borrow_check::nll::type_check::TypeChecker::check_rvalue::h2bf06f16cb29ad88
  27:     0x7f6c582d9607 - rustc_mir::borrow_check::nll::type_check::TypeChecker::typeck_mir::hb499a59c8246eb57
  28:     0x7f6c582ccfda - rustc_mir::borrow_check::nll::type_check::type_check::ha16b660f3db7b1f1
  29:     0x7f6c582105e5 - rustc_mir::borrow_check::nll::compute_regions::h0260c515d4faa652
  30:     0x7f6c57ed380b - rustc_mir::borrow_check::do_mir_borrowck::h820ef35edc5ac038
  31:     0x7f6c581c205a - rustc::ty::context::GlobalCtxt::enter_local::h1ed6b75232f132b5
  32:     0x7f6c57ed2cfa - rustc_mir::borrow_check::mir_borrowck::h45f028e130853501
  33:     0x7f6c57657523 - rustc::ty::query::__query_compute::mir_borrowck::h4ee3c16667cb0a75
  34:     0x7f6c5761d5fc - rustc::ty::query::<impl rustc::ty::query::config::QueryAccessors for rustc::ty::query::queries::mir_borrowck>::compute::hf9e1e7d649716be5
  35:     0x7f6c575d9cf1 - rustc::dep_graph::graph::DepGraph::with_task_impl::h95e619e376fed8f1
  36:     0x7f6c576392d0 - rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt>::get_query::hb2c0f4fa5a8fab0b
  37:     0x7f6c5761d1b8 - rustc::ty::<impl rustc::ty::context::TyCtxt>::par_body_owners::hb5ec544f452a4999
  38:     0x7f6c576637c3 - rustc_interface::passes::analysis::h11e465c53db707c6
  39:     0x7f6c574a1fc2 - rustc::ty::query::__query_compute::analysis::h8209330e6c35c935
  40:     0x7f6c574f1049 - rustc::dep_graph::graph::DepGraph::with_task_impl::hc0ff0e0262a656d9
  41:     0x7f6c57517658 - rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt>::get_query::h364920cc587f967c
  42:     0x7f6c574bf755 - rustc::ty::context::tls::enter_global::h6be5e193e6b6506c
  43:     0x7f6c574d550f - rustc_interface::interface::run_compiler_in_existing_thread_pool::h450b3e47e99b2a02
  44:     0x7f6c574a5b72 - std::thread::local::LocalKey<T>::with::hc064f9c463ba87b1
  45:     0x7f6c5749f68e - scoped_tls::ScopedKey<T>::set::he618e0867346e071
  46:     0x7f6c575199a4 - syntax::with_globals::h05656a832d1edc4c
  47:     0x7f6c5751bb00 - std::sys_common::backtrace::__rust_begin_short_backtrace::hb45a6b809630e3e0
  48:     0x7f6c56fd9d0a - __rust_maybe_catch_panic
                               at src/libpanic_unwind/lib.rs:78
  49:     0x7f6c574b6469 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h0091d3870173b469
  50:     0x7f6c56faa88f - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h9ef9eb6ec2ee6be0
                               at /rustc/fdc0011561c6365c596dfd8fa1ef388162bc89c7/src/liballoc/boxed.rs:969
  51:     0x7f6c56fd8730 - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::hc0fc46e9a64f076e
                               at /rustc/fdc0011561c6365c596dfd8fa1ef388162bc89c7/src/liballoc/boxed.rs:969
  52:     0x7f6c56fd8730 - std::sys_common::thread::start_thread::h4eee21a391e25c99
                               at src/libstd/sys_common/thread.rs:13
  53:     0x7f6c56fd8730 - std::sys::unix::thread::Thread::new::thread_start::h673f7c20aae94594
                               at src/libstd/sys/unix/thread.rs:80
  54:     0x7f6c56f17669 - start_thread
  55:     0x7f6c56e2c323 - clone
  56:                0x0 - <unknown>

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 1.41.0-nightly (fdc001156 2019-12-02) running on x86_64-unknown-linux-gnu

note: compiler flags: -C debuginfo=2 -C incremental --crate-type bin

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

query stack during panic:
#0 [mir_borrowck] processing `site::auth::initiate_auth::InitiateAuth::<S>::try_post::{{closure}}#0`
#1 [mir_borrowck] processing `site::auth::initiate_auth::InitiateAuth::<S>::try_post`
#2 [analysis] running analysis passes on this crate
end of query stack
error: could not compile `pixurs`.

@rustbot

I think I have a clue here:
First the code:

struct Ia<S>(u32, S); 

impl<S> Ia<S> {
    fn partial(_: S) {}
    fn full(self) {}

    async fn crash(self) {
        Self::partial(self.1);
        Self::full(self);
    }
}

fn main() {}

The problem seems to be a partial move of self together with async together with a generic type S (if we replace S by String for example, rust will complain as well and no ICE).

If we remove the async rust will complain:

error[E0382]: use of moved value: `self`
 --> src/main.rs:9:20
  |
8 |         Self::partial(self.1);
  |                       ------ value moved here
9 |         Self::full(self);
  |                    ^^^^ value used here after partial move
  |
  = note: move occurs because `self.1` has type `S`, which does not implement the `Copy` trait

@rustbot modify labels: +A-async-await -E-needs-mcve +E-needs-bisection

@estebank

Regression in 861e96f #66567 cc @estebank

@rustbot modify labels: -E-needs-bisection

triage: has PR. P-high, removing nomination.

Do not ICE on async fn with non-Copy infered type arg

Rollup merge of rust-lang#67004 - estebank:issue-66958, r=eddyb

Auto merge of #67004 - estebank:issue-66958, r=eddyb

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ICE on rustc 1.41.0-nightly (25d8a9494 2019-11-29) running on x86_64-apple-darwin #66958

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ICE on rustc 1.41.0-nightly (25d8a9494 2019-11-29) running on x86_64-apple-darwin #66958

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jonas-schievink commented on Dec 2, 2019

maghoff commented on Dec 2, 2019

hellow554 commented on Dec 3, 2019

hellow554 commented on Dec 3, 2019

hellow554 commented on Dec 3, 2019

hellow554 commented on Dec 3, 2019

pnkfelix commented on Dec 5, 2019

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