unpacking 'https://github.com/NixOS/nixpkgs/archive/e7a3ca8092b61ff85b6a45bf863ea2b2d6a661b3.tar.gz' into the Git cache...
this derivation will be built:
  /nix/store/my2bb6a1p2qdk9r157x6akjpakl21cf9-bcachefs-module-7.1.3-arch1-2.drv
building '/nix/store/my2bb6a1p2qdk9r157x6akjpakl21cf9-bcachefs-module-7.1.3-arch1-2.drv'...