unpacking 'https://github.com/NixOS/nixpkgs/archive/e7a3ca8092b61ff85b6a45bf863ea2b2d6a661b3.tar.gz' into the Git cache...
this derivation will be built:
  /nix/store/35ik96iy10f7xmgx33j83xamq2xvdncw-bcachefs-module-7.2.9-arch1-1.drv
building '/nix/store/35ik96iy10f7xmgx33j83xamq2xvdncw-bcachefs-module-7.2.9-arch1-1.drv'...