gistfile1.txt

$ raco pkg install pfds
=: contract violation
  expected: number?
  given: #<eof>
  argument position: 1st
  other arguments...:
   31
  context...:
   /home/asumu/plt/racket-git/collects/file/untgz.rkt:27:3
   /home/asumu/plt/racket-git/collects/planet2/lib.rkt:400:17
   /home/asumu/plt/racket-git/collects/planet2/lib.rkt:340:2: install-package
   /home/asumu/plt/racket-git/collects/planet2/lib.rkt:340:2: install-package
   /home/asumu/plt/racket-git/collects/planet2/lib.rkt:330:0: install-packages55
   /home/asumu/plt/racket-git/collects/racket/file.rkt:295:8
   /home/asumu/plt/racket-git/collects/racket/file.rkt:284:0: call-with-file-lock24
   /home/asumu/plt/racket-git/collects/planet2/main.rkt: [running body]
   /home/asumu/plt/racket-git/collects/planet2/raco.rkt: [traversing imports]
   /home/asumu/plt/racket-git/collects/raco/raco.rkt: [running body]
   /home/asumu/plt/racket-git/collects/raco/main.rkt: [running body]