We test musl 32 but not x86-64.
I've added buildsets so we now build both 32 and 64 bit with nightly. I'll test the nightly build this weekend to confirm that it works.
updated here: 0001e2788eba03d3ad96e7b6242f10bff0960f9b and here: 2a52d61d84ff6f8ec25f3b3539a0c032d3345242