$ guix import texlive fontspec
redirection vers « https://ctan.org/xml/1.2/pkg/fontspec »...
Backtrace:
          11 (primitive-load "/home/andreh/.config/guix/current/bin/…")
In guix/ui.scm:
  1806:12 10 (run-guix-command _ . _)
In guix/scripts/import.scm:
   116:11  9 (guix-import . _)
In guix/scripts/import/texlive.scm:
    91:19  8 (guix-import-texlive . _)
In guix/memoization.scm:
     98:0  7 (_ #<hash-table 7fe80e6c1480 0/31> ("fontspec" "latex") _)
In unknown file:
           6 (_ #<procedure 7fe80e6e4de0 at guix/memoization.scm:17…> …)
In guix/store.scm:
   625:10  5 (call-with-store #<procedure 7fe80e714a60 at guix/impor…>)
In guix/import/texlive.scm:
   148:23  4 (_ #<store-connection 256.99 7fe811f3c960>)
In guix/utils.scm:
    664:8  3 (call-with-temporary-directory #<procedure 7fe80cac1b40…>)
In guix/svn-download.scm:
   160:14  2 (_ "/tmp/guix-directory.WtLohP")
In guix/build/svn.scm:
     39:2  1 (svn-fetch _ _ _ #:svn-command _ #:recursive? _ # _ # _)
In guix/build/utils.scm:
    652:6  0 (invoke _ . _)

guix/build/utils.scm:652:6: In procedure invoke:
Throw to key `srfi-34' with args `(#<condition &invoke-error [program: "svn" arguments: ("export" "--non-interactive" "--trust-server-cert" "-r" "49435" "svn://www.tug.org/texlive/tags/texlive-2018.2/Master/texmf-dist/source/latex/fontspec" "/tmp/guix-directory.WtLohP") exit-status: 1 term-signal: #f stop-signal: #f] 7fe80d229c80>)'.