Locally, I fixed this by rebuilding guile-libs/guile packages and
reinstalling, no code changes needed at all.
$ apt source guile-3.0-libs
$ cd guile-3.0-3.0.8/
$ sudo apt build-dep guile-3.0
$ sudo apt install fakeroot
$ dpkg-buildpackage -rfakeroot -uc -us
$ sudo dpkg -i ../guile-3.0*.deb
--
I found a fix for this that at least works for me.
;;; note: source file /usr/share/guile/3.0/ice-9/eval.scm
;;; newer than compiled /usr/lib/x86_64-linux-gnu/guile/3.0/ccache/ice-9/eval.go
stat /usr/share/guile/3.0/ice-9/eval.scm
and
stat /usr/lib/x86_64-linux-gnu/guile/3.0/ccache/ice-9/eval.go
