unpacking 'https://github.com/NixOS/nixpkgs/archive/3d46470bb3030020f7e1361f33514854f5bfa86d.tar.gz' into the Git cache... this derivation will be built: /nix/store/f5wx91fj0pf6bxsmgxd136qq6xz7pbw8-bcachefs-module-7.1.3+deb14-rt-amd64.drv building '/nix/store/f5wx91fj0pf6bxsmgxd136qq6xz7pbw8-bcachefs-module-7.1.3+deb14-rt-amd64.drv'...