Octave Bitbucket clone error mesg

$ hg clone -v https://bitbucket.org/carandraug/octave
destination directory: octave
requesting all changes
adding changesets
adding manifests
adding file changes
added 15880 changesets with 101590 changes to 11754 files (+2 heads)
updating to branch default
resolving manifests
getting .dir-locals.el
getting .gitignore
getting .hgignore
getting .hgsub
getting .hgsubstate
cloning subrepo gnulib from git://git.sv.gnu.org/gnulib
fatal: unable to connect to git.sv.gnu.org:
git.sv.gnu.org: Name or service not known

abort: git clone error 128 in gnulib