Docker build is broken

[dleslie]

I bisected, it appears that 4749522605b2e88d2c2ce38cdd579e2b99990b37 was the last commit to build a functional Docker container.

Build log for current head 21818f7547569a796e16a6694e5bf6541f096d75 is attached.

build.log

[dleslie]

I suspect the issue is that the m68k-elf tools may not be getting installed correctly; if I add a mkdir -p /marsdev/mars/m68k-elf/bin/ then sjasm builds, but then SGDK fails because it cannot locate m68k-elf-gcc.