unpacking 'https://github.com/NixOS/nixpkgs/archive/61b7c44c4073f0b827768aff0049561b5110ea5a.tar.gz' into the Git cache...
this derivation will be built:
  /nix/store/c0qs5zah6yqiapm7byrm867072774fjj-bcachefs-module-7.1.4-arch1-1.drv
building '/nix/store/c0qs5zah6yqiapm7byrm867072774fjj-bcachefs-module-7.1.4-arch1-1.drv'...