unpacking 'https://github.com/NixOS/nixpkgs/archive/e7a3ca8092b61ff85b6a45bf863ea2b2d6a661b3.tar.gz' into the Git cache... this derivation will be built: /nix/store/y22b4v4731sm98jyzgwknllmnzhwilq5-bcachefs-module-7.2.9-zen1-1-zen.drv building '/nix/store/y22b4v4731sm98jyzgwknllmnzhwilq5-bcachefs-module-7.2.9-zen1-1-zen.drv'...