mullvad-vpn build fails after jnix crate upgrade to v0.2.0

[nonfictiongames]

mullvad-vpn build fails after jnix crate upgrade to v0.2.0

I tried this code:

sudo pacman -Russnc mullvad-vpn
sudo rm -rf /var/cache/mullvad-vpn/
sudo rm -rf /var/log/mullvad-vpn/
git clone https://aur.archlinux.org/mullvad-vpn.git
cd mullvad-vpn
makepkg -si

I expected to see this happen: build completes without errors

Instead, this happened: rustc panicks at 'assertion failed: data.is_empty()', src/librustc_infer/infer/mod.rs:1288:9

Meta

rustc --version --verbose:

rustc 1.43.0-nightly (6fd8798f4 2020-02-25)
binary: rustc
commit-hash: 6fd8798f4de63328d743eb2a9a9c12e202a4a182
commit-date: 2020-02-25
host: x86_64-unknown-linux-gnu
release: 1.43.0-nightly
LLVM version: 9.0

Backtrace:

Compiling failure v0.1.6
   Compiling netlink-packet v0.1.1 (https://github.com/mullvad/netlink?rev=f768adfcc8c6b064ef7ae3c792c4c21d0d96d0b5#f768adfc)
   Compiling netlink-proto v0.1.1 (https://github.com/mullvad/netlink?rev=f768adfcc8c6b064ef7ae3c792c4c21d0d96d0b5#f768adfc)
   Compiling jnix v0.2.0
thread 'rustc' panicked at 'assertion failed: data.is_empty()', src/librustc_infer/infer/mod.rs:1288:9
stack backtrace:
   Compiling rtnetlink v0.1.1 (https://github.com/mullvad/netlink?rev=f768adfcc8c6b064ef7ae3c792c4c21d0d96d0b5#f768adfc)
   0:     0x7fb34694b614 - backtrace::backtrace::libunwind::trace::h0a6d7823273fd816
                               at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.44/src/backtrace/libunwind.rs:86
   1:     0x7fb34694b614 - backtrace::backtrace::trace_unsynchronized::h229a0e755b1b42eb
                               at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.44/src/backtrace/mod.rs:66
   2:     0x7fb34694b614 - std::sys_common::backtrace::_print_fmt::ha4e5e469fbf96b31
                               at src/libstd/sys_common/backtrace.rs:78
   3:     0x7fb34694b614 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::ha3d6ee3353ca24fa
                               at src/libstd/sys_common/backtrace.rs:59
   4:     0x7fb3469847bc - core::fmt::write::h2a5f307ad1f62206
                               at src/libcore/fmt/mod.rs:1052
   5:     0x7fb34693cf77 - std::io::Write::write_fmt::h4feb4a5e1a3c415e
                               at src/libstd/io/mod.rs:1428
   6:     0x7fb346950405 - std::sys_common::backtrace::_print::h173a732fa3200a96
                               at src/libstd/sys_common/backtrace.rs:62
   7:     0x7fb346950405 - std::sys_common::backtrace::print::he240752f05e05cb4
                               at src/libstd/sys_common/backtrace.rs:49
   8:     0x7fb346950405 - std::panicking::default_hook::{{closure}}::h532f9d2f4d0a8068
                               at src/libstd/panicking.rs:204
   9:     0x7fb346950146 - std::panicking::default_hook::hdd523bb6b03295ff
                               at src/libstd/panicking.rs:224
  10:     0x7fb346fc6de9 - rustc_driver::report_ice::h3c83956ffc9c0984
  11:     0x7fb346950b35 - std::panicking::rust_panic_with_hook::h6b23a7f10a70b136
                               at src/libstd/panicking.rs:474
  12:     0x7fb348c5dfee - std::panicking::begin_panic::hf9251e02b5586bcc
  13:     0x7fb348c0b9bd - rustc_infer::infer::InferCtxt::take_region_var_origins::hef898dbcef7fd8d7
  14:     0x7fb348128963 - rustc_mir::borrow_check::nll::compute_regions::had7513632a8229c5
  15:     0x7fb3482d39dc - rustc_mir::borrow_check::do_mir_borrowck::h957fc2b1e327bf1e
  16:     0x7fb3483ec94d - rustc::ty::context::GlobalCtxt::enter_local::hf4345ae235232d30
  17:     0x7fb3482d2de4 - rustc_mir::borrow_check::mir_borrowck::h8d9c688079923732
  18:     0x7fb34716f6ca - rustc::ty::query::__query_compute::mir_borrowck::h67da2643aaf76726
  19:     0x7fb3471824ab - rustc::ty::query::<impl rustc::ty::query::config::QueryAccessors for rustc::ty::query::queries::mir_borrowck>::compute::h5722ae527c08d4f4
  20:     0x7fb347213819 - rustc::dep_graph::graph::DepGraph::with_task_impl::h67168eb9ac0e9c3d
  21:     0x7fb347187ca5 - rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt>::get_query::h1662b6a077fe61f6
  22:     0x7fb3471821fe - rustc::ty::<impl rustc::ty::context::TyCtxt>::par_body_owners::hf507e274d0164165
  23:     0x7fb347239f4c - rustc_interface::passes::analysis::h9499aa0f68bf94ac
  24:     0x7fb346fd35b6 - rustc::ty::query::__query_compute::analysis::hff21d005a7d08b8a
  25:     0x7fb34703a98e - rustc::dep_graph::graph::DepGraph::with_task_impl::h8950063944d178a9
  26:     0x7fb347014465 - rustc::ty::query::plumbing::<impl rustc::ty::context::TyCtxt>::get_query::ha35fd8044f09cc28
  27:     0x7fb34704a537 - rustc::ty::context::tls::enter_global::h7e6e0f5057e0a7c3
  28:     0x7fb34701bed7 - rustc_interface::interface::run_compiler_in_existing_thread_pool::hede3fedddbc5cb3e
  29:     0x7fb346fcec94 - std::sys_common::backtrace::__rust_begin_short_backtrace::h62ce3aa44be26838
  30:     0x7fb346962427 - __rust_maybe_catch_panic
                               at src/libpanic_unwind/lib.rs:86
  31:     0x7fb34701d8a6 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h2d82c36472451fcc
  32:     0x7fb34692d2ff - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::hc94d4081949fab2e
                               at /rustc/6fd8798f4de63328d743eb2a9a9c12e202a4a182/src/liballoc/boxed.rs:1017
  33:     0x7fb346960d30 - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::hf92794a94efb1708
                               at /rustc/6fd8798f4de63328d743eb2a9a9c12e202a4a182/src/liballoc/boxed.rs:1017
  34:     0x7fb346960d30 - std::sys_common::thread::start_thread::h56a1db213ce5872d
                               at src/libstd/sys_common/thread.rs:13
  35:     0x7fb346960d30 - std::sys::unix::thread::Thread::new::thread_start::h6ff08e6072d2a5ae
                               at src/libstd/sys/unix/thread.rs:80
  36:     0x7fb34688846f - start_thread
  37:     0x7fb3467a83d3 - clone
  38:                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 1.43.0-nightly (6fd8798f4 2020-02-25) running on x86_64-unknown-linux-gnu
 
note: compiler flags: -C opt-level=s --crate-type lib
 
note: some of the compiler flags provided by cargo are hidden
 
query stack during panic:
#0 [mir_borrowck] borrow-checking `from_java::implementations::std::<impl from_java::FromJava<'env, jni::objects::AutoLocal<'sub_env, 'borrow>> for T>::JNI_SIGNATURE`
#1 [analysis] running analysis passes on this crate
end of query stack
error: could not compile `jnix`.

[Centril]

cc @matthewjasper

[Centril]

@rustbot ping icebreakers-cleanup-crew

[LeSeulArtichaut]

Currently running cargo-bisect-rustc

[LeSeulArtichaut]

cargo-bisect-rustc prints:

searched nightlies: from nightly-2020-02-11 to nightly-2020-02-18
regressed nightly: nightly-2020-02-16
searched commits: from 433aae9 to 61d9231
regressed commit: 19288dd
source code: https://github.com/mullvad/jnix

@rustbot modify labels: -E-needs-bisection

[hellow554]

pub trait Trait<T> {
    const S: &'static str;
}

impl<T> Trait<()> for T
where 
    T: for<'a> Trait<std::marker::PhantomData<&'a ()>>,
{
    const S: &'static str = T::S;
}

@rustbot modify labels: -E-needs-mcve