unpacking 'https://github.com/NixOS/nixpkgs/archive/9fbb54b33e91ee4ca368e35a78e0613c720600b3.tar.gz' into the Git cache...
this derivation will be built:
  /nix/store/54wgs08jfvykjaqw92gqscxvlq04wq6c-bcachefs-module-7.1.10-arch1-1.drv
building '/nix/store/54wgs08jfvykjaqw92gqscxvlq04wq6c-bcachefs-module-7.1.10-arch1-1.drv'...