Cloning the spectrum nixpkgs repo seems to consistently fail, after downloading all the objects, with:
fetch-pack: unexpected disconnect while reading sideband packet
fatal: early EOF
fatal: fetch-pack: invalid index-pack output
Have confirmed this across a couple of networks. Relatedly, the git web interface seems to always 504 Gateway Timeout while a clone is in progress.
I wonder if the git server is configured to only handle one thread/request at a time, and the clone process involves 2 concurrent requests? (either that, or the server is actually overloaded).
fyi, as a workaround: clone nixpkgs from elsewhere, then add the spectrum nixpkgs remote and fetch - it will also be much faster :)
- Jamie McClymont