Cannot compile firefox anymore

[calixteman]

1:54.98 Compiling webrender_bindings v0.1.0 (file:///home/calixte/dev/mozilla/mozilla-central.hg/gfx/webrender_bindings)
1:54.98 error: internal compiler error: /checkout/src/librustc_typeck/astconv.rs:1267: anonymous bound region BrAnon(1) in return but not args
1:54.98 --> /home/calixte/dev/mozilla/mozilla-central.hg/obj-x86_64-pc-linux-gnu/toolkit/library/x86_64-unknown-linux-gnu/release/build/style-b980317b2d512036/out/gecko/bindings.rs:532:9
1:54.98 |
1:54.98 532 | -> RawGeckoNodeBorrowedOrNull;
1:54.98 | ^^^^^^^^^^^^^^^^^^^^^^^^^^
1:54.98
1:54.98 note: the compiler unexpectedly panicked. this is a bug.
1:54.98
1:54.98 note: we would appreciate a bug report: https://github.com/rust-lang/rust/blob/master/CONTRIBUTING.md#bug-reports
1:54.98
1:54.98 note: rustc 1.21.0-nightly (13d94d5 2017-08-10) running on x86_64-unknown-linux-gnu
1:54.98
1:54.98 note: run with RUST_BACKTRACE=1 for a backtrace
1:54.98
1:54.98 thread 'rustc' panicked at 'Box', /checkout/src/librustc_errors/lib.rs:434:8
1:54.98 stack backtrace:
1:54.98 0: 0x7f43083c1c83 - std::sys::imp::backtrace::tracing::imp::unwind_backtrace::hc9320db76922c77f
1:54.98 at /checkout/src/libstd/sys/unix/backtrace/tracing/gcc_s.rs:49
1:54.98 1: 0x7f43083bc414 - std::sys_common::backtrace::_print::hd1cad143436e7e7b
1:54.98 at /checkout/src/libstd/sys_common/backtrace.rs:71
1:54.98 2: 0x7f43083cf493 - std::panicking::default_hook::{{closure}}::h8ce44357afd55c76
1:54.98 at /checkout/src/libstd/sys_common/backtrace.rs:60
1:54.98 at /checkout/src/libstd/panicking.rs:380
1:54.98 3: 0x7f43083cf18a - std::panicking::default_hook::h85c58325ebacf8fb
1:54.98 at /checkout/src/libstd/panicking.rs:390
1:54.98 4: 0x7f43083cf997 - std::panicking::rust_panic_with_hook::hfa335e60391f47d9
1:54.98 at /checkout/src/libstd/panicking.rs:610
1:54.98 5: 0x7f43057946a8 - std::panicking::begin_panic::h528dcfd1e0c95df0
1:54.98 6: 0x7f43057902f3 - rustc_errors::Handler::span_bug::h9fb3bb385ec804bf
1:54.98 7: 0x7f43057c3244 - rustc::session::opt_span_bug_fmt::{{closure}}::h40f5623c4951b591
1:54.98 8: 0x7f43057c30d7 - rustc::session::span_bug_fmt::h5e14f6e6dbcf5753
1:54.98 9: 0x7f430586bc36 - <rustc_typeck::astconv::AstConv<'gcx, 'tcx> + 'o>::ty_of_fn::hbf7c6b4bfadb36b8
1:54.98 10: 0x7f430587548a - rustc_typeck::collect::fn_sig::h21dc19594da6e3e2
1:54.98 11: 0x7f430520cb4b - rustc::dep_graph::graph::DepGraph::with_task::hd60db530bfb970cb
1:54.98 12: 0x7f43054235aa - rustc::ty::maps::<impl rustc::ty::maps::queries::fn_sig<'tcx>>::try_get::h146503a52e6d795a
1:54.98 13: 0x7f430545f16f - rustc::ty::maps::TyCtxtAt::fn_sig::h9296197fe24db9bb
1:54.98 14: 0x7f430545b927 - rustc::ty::maps::<impl rustc::ty::context::TyCtxt<'a, 'tcx, 'lcx>>::fn_sig::h0082236b52519e8e
1:54.98 15: 0x7f430586dac7 - <rustc_typeck::collect::CollectItemTypesVisitor<'a, 'tcx> as rustc::hir::intravisit::Visitor<'tcx>>::visit_item::h4a7caef92b58bbb6
1:54.98 16: 0x7f430588cfdc - rustc_typeck::check_crate::{{closure}}::{{closure}}::h11dad5088c44b9ea
1:54.98 17: 0x7f430588b1de - rustc_typeck::check_crate::he7514f54bbc90a21
1:54.98 18: 0x7f43086f35b0 - rustc::ty::context::TyCtxt::create_and_enter::hf0b1401af74e7747
1:54.99 19: 0x7f4308750ed1 - rustc_driver::driver::compile_input::h7e4322197bc87ab7
1:54.99 20: 0x7f430876a782 - rustc_driver::run_compiler::h7ff66578813a854d
1:54.99 21: 0x7f43086a8261 - std::sys_common::backtrace::__rust_begin_short_backtrace::h2a0cfbdf7b97e796
1:54.99 22: 0x7f43083feedc - __rust_maybe_catch_panic
1:54.99 at /checkout/src/libpanic_unwind/lib.rs:98
1:54.99 23: 0x7f43086db900 - <F as alloc::boxed::FnBox>::call_box::hb763c222ac18e463
1:54.99 24: 0x7f43083ce3cb - std::sys::imp::thread::Thread::new::thread_start::h79a2d07a57977c8b
1:54.99 at /checkout/src/liballoc/boxed.rs:692
1:54.99 at /checkout/src/libstd/sys_common/thread.rs:21
1:54.99 at /checkout/src/libstd/sys/unix/thread.rs:84
1:54.99 25: 0x7f43035e3493 - start_thread
1:54.99 26: 0x7f4308089a8e - __clone
1:54.99 27: 0x0 -
1:54.99
1:54.99 error: Could not compile style.

[Mark-Simulacrum]

Thanks! This is a duplicate of #43567 though.