Thanks for the report!It seems that Guix's change in 8.2 to make `racket` a layered/tethered installation chaining to `racket-minimal` exposed a bug in Racket's `setup/variant` module. I've reported it upstream here: https://github.com/racket/racket/issues/3969
Hopefully it will be possible to cherry-pick the fix onto Guix's Racket 8.2 packages.
-Philip
