raco setup: fix some info-dmain problems
raco setup: fix some info-dmain problems

Info for "lib/collects" collections could be put in the wrong place,
and `--tidy' mode could miss some caches.

mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket