Run "guix build scroll" -- after completing all steps it outputs 
"builder for 
`/gnu/store/r35sa0d9fnp22y0jgzk810yyhn8d7lrl-scroll-1.20180421.drv' 
failed to produce output path 
`/gnu/store/1q7aj03p7f0nk7dmdyp3lfscizywdr4m-scroll-1.20180421-static'"

I ran "guix edit scroll" and saw it doesn't do anything fancy with the 
phases or the source. Perhaps there's something wrong with the package's 
install process that needs correction?

See attached log.

guix describe:

Generation 267    Aug 21 2020 10:11:46    (current)
   guix c02398e
     repository URL: https://git.savannah.gnu.org/git/guix.git
     branch: master
     commit: c02398edf43c393b858d57c7b9e4839514f85acb