Maybe need to change repo to https://git.savannah.gnu.org/git/emacs.git

[hubisan]

This didn't work:

> git clone --depth 1 git://git.sv.gnu.org/emacs.git
Cloning into 'emacs'...
fatal: unable to connect to git.sv.gnu.org:
git.sv.gnu.org[0: 209.51.188.78]: errno=Connection timed out
git.sv.gnu.org[1: 2001:470:142:6::78]: errno=Network is unreachable

But this did work:

> git clone --depth 1 https://git.savannah.gnu.org/git/emacs.git
Cloning into 'emacs'...
remote: Enumerating objects: 5626, done.
remote: Counting objects: 100% (5626/5626), done.
remote: Compressing objects: 100% (5159/5159), done.
remote: Total 5626 (delta 747), reused 2064 (delta 260), pack-reused 0
Receiving objects: 100% (5626/5626), 50.52 MiB | 2.25 MiB/s, done.
Resolving deltas: 100% (747/747), done.
Updating files: 100% (5308/5308), done.
``

Maybe it was a problem with the network at work when using git instead of https.