trying https://github.com/NVIDIA/nccl/archive/v2.12.10-1.tar.gz
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:-- --:--:-- --:--:--     0
100  262k    0  262k    0     0   413k      0 --:--:-- --:--:-- --:--:--  413k
unpacking source archive /nix/var/nix/builds/nix-3667355-2679855225/v2.12.10-1.tar.gz