bug#25775: Can't install packages after guix pull

[Pjotr Prins]

Yes, using the latest guix-daemon and guix client fixed it:

/gnu/store/175nlv448nk5kagwwl3zyy2w4726qfz6-guix-0.12.0-4.d9da/bin/guix-daemon

/home/pjotr/genenetwork/guix/scripts/guix --version
guix (GNU Guix) 20170218.09


./pre-inst-env guix import cpan Time::ParseDate

Starting download of /tmp/guix-file.hSC5MT
>From 
>http://mirror.ibcp.fr/pub/CPAN/authors/id/M/MU/MUIR/modules/Time-ParseDate-2015.103.tar.gz...
 ...2015.103.tar.gz  26KiB          201KiB/s 00:00 [####################] 100.0%
(package
  (name "perl-time-parsedate")
  (version "2015.103")
  (source
    (origin
      (method url-fetch)
      (uri (string-append
             "mirror://cpan/authors/id/M/MU/MUIR/modules/Time-ParseDate-"
             version
             ".tar.gz"))
      (sha256
        (base32
          "1lgfr87j4qwqnln0hyyzgik5ixqslzdaksn9m8y824gqbcihc6ic"))))
  (build-system perl-build-system)
  (native-inputs
    `(("perl-extutils-makemaker"
       ,perl-extutils-makemaker)
      ("perl-time-piece" ,perl-time-piece)))
  (home-page
    "http://search.cpan.org/dist/Time-ParseDate";)
  (synopsis "Parse and format time values")
  (description fill-in-yourself!)
  (license #f))

I also confirm 'guix pull' failed with the older daemon. Whatever system we
find to replace 'guix pull' should be more conservative in preventing this type 
of 
breakage.

--