Do not use linux-latest runner, use an older stable version. A VM compiled on ubuntu-20.04 (aka latest) will not run on ubuntu-16.04 due to runtime library link issues. Therefore select ubuntu-18.04 as a build runner that is likely to support a wider range of existing Linux systems. Addresses this problem:
Do not use linux-latest runner, use an older stable version.
A VM compiled on ubuntu-20.04 (aka latest) will not run on
ubuntu-16.04 due to runtime library link issues. Therefore
select ubuntu-18.04 as a build runner that is likely to support
a wider range of existing Linux systems. Addresses this problem:

 /lib/x86_64-linux-gnu/libm.so.6: version `GLIBC_2.29' not found

timfel/squeakvm,timfel/squeakvm,timfel/squeakvm,timfel/squeakvm,timfel/squeakvm,timfel/squeakvm,timfel/squeakvm,timfel/squeakvm