I've got retroarch v1.3.6 on Stretch on aarch64. It has crashed with a "file not found" and "bus error" for bsnes. Higan segfaults when I try to run it.
Not helpful to you except as an existence proof, but you can install Retropie on a Raspberry Pi and it will play SNES ROMs fine. I believe the emulator is a variant of SNES9x.
retropie runs fine on some arm platforms. you can also use lakka. However the latest retroarch is 1.8.5, while the 1.3.6 version is from 2016, I would imagine nothing would work on Stretch, so I recommend an upgrade or any OS that isn't debian. If in doubt, gentoo always works, though its source based.
I've got retroarch v1.3.6 on Stretch on aarch64. It has crashed with a "file not found" and "bus error" for bsnes. Higan segfaults when I try to run it.