Currently you can't run the released binaries on debian 10, rhel 8 or ubuntu 18.04, since they have GLIBC versions below 2.29. The unknown-linux-gnu binary in the release requires GLIBC 2.29:

$ objdump -T phraze  | grep 'GLIBC_2\.2[^.]'
0000000000000000  w   DF *UND*  0000000000000000 (GLIBC_2.25) getrandom
0000000000000000      DF *UND*  0000000000000000 (GLIBC_2.29) log2
0000000000000000  w   DF *UND*  0000000000000000 (GLIBC_2.28) statx

I think a good solution to this will be to create statically linked musl binaries, which should be able to run on any linux, regardless of glibc version.