s390x - attempt to call global 'require' (a nil value)

Issue

This issue occurs on Alpine (specifically, in a Docker container). When I try to run a file foo.lua with the following code in it:

local ffi = require('ffi')

ffi.cdef[[
typedef struct {
  size_t total_size;
  size_t off;
  size_t len;
  uint8_t * src;
  uint8_t byte;
} count_eq_data;
]]

I get an error message like so:

/usr/bin/luajit: foo.lua:1: attempt to call global 'require' (a nil value)

How to reproduce

You will need Docker available, and the daemon running.

1. Run docker run --privileged multiarch/qemu-user-static --reset -p yes
2. Run docker run --rm -i -t s390x/alpine:latest to start a shell in the emulated Alpine container.
3. Run apk update followed by apk add luajit.
4. Put the contents of the above Lua code into a file foo.lua.
5. Attempt luajit foo.lua,
6. Enjoy the error.

Expected behaviour

The script should execute (doing nothing), and return a success status code.

Reproduce the failure with the listed Docker commands on s390x Alpine, using foo.lua and the luajit entry point. Investigate why the global require is unavailable in this environment; done means the script runs successfully and returns a success status code.