Can't get API diff to work on my machine

[codeman7]

When running scripts/release apidiff while doing a Material-Components-iOS release the output is

Changelog=/var/folders/5g/3j6wbymd03jbv54v218wgbvw00jg1r/T/tmp.E0SqXEWc/changelog
Errors=/var/folders/5g/3j6wbymd03jbv54v218wgbvw00jg1r/T/tmp.E0SqXEWc/errlog
Diffing Chips (components/Chips/src)...

But nothing happens.

This is with sourcekitten 0.23.2.