Unfortunately I still get a 404 looking for the 10.12 binaries

Exception message: Failed to fetch binary bin/native-engine/mac/10.12/ab51a617f069641eb6b47e8713e51150ad0a6ab0/native_engine.so from any source: (Failed to fetch binary from <https://s3.amazonaws.com/binaries.pantsbuild.org/bin/native-engine/mac/10.12/ab51a617f069641eb6b47e8713e51150ad0a6ab0/native_engine.so>: Fetch of <https://s3.amazonaws.com/binaries.pantsbuild.org/bin/native-engine/mac/10.12/ab51a617f069641eb6b47e8713e51150ad0a6ab0/native_engine.so> failed with status code 404)