I learned about `guix import hackage --stdin`, and it turns out the problem is with bad indentation in the cabal file. (The offending line is indented by two spaces instead of four spaces for the block before.) It’s unclear to me whether this is a “valid” cabal file as it is.
- bug#35743: guix import hackage wai-app-static fails (comme... Robert Vollmert
- bug#35743: indentation error Robert Vollmert
- bug#35743: fixed upstream Robert Vollmert
- bug#35743: applies more widely Robert Vollmert