ICE on latest (15aa15b03 2017-07-21) nightly

[ozkriff]

error: internal compiler error: /checkout/src/librustc/infer/mod.rs:573: Encountered errors `[FulfillmentError(Obligation(predicate=Binder(TraitPredicate(<CB as audio::AudioCallback>)),depth=0),Unimplemented)]` resolving bounds after type-checking

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 1.20.0-nightly (15aa15b03 2017-07-21) running on x86_64-unknown-linux-gnu

thread 'rustc' panicked at 'Box<Any>', /checkout/src/librustc_errors/lib.rs:437:8
note: Run with `RUST_BACKTRACE=1` for a backtrace.

error: Could not compile `sdl2`.

[SpaceManiac]

rust-lang/rust#43394
audio.rs line 375

[Cobrand]

This is not our bug technically (since it comes from the compiler + is only in nightly), but I'm leaving this open for visibility until this is fixed in nightly.

[tegarriott]

Building on nightly is working again