Error when running darwin.builder

[3Rafal]

Hello,
I'm working through the examples in the book, and I found a problem with running a macOS builder. For some reason, the mkfs binary is compiled for linux:

rafal@memebook> nix run 'nixpkgs#darwin.builder'
Disk image do not exist, creating the virtualisation disk image...
Formatting '/tmp/tmp.Xq3GkwCrEL', fmt=raw size=21474836480
/nix/store/4mx7h23lbrf1csjmnf5fcd9nvzgrya2n-nixos-vm/bin/run-nixos-vm: line 14: /nix/store/sh0plpi3ddar4g7ws7ww37r5kv0rg51j-e2fsprogs-1.47.0-bin/bin/mkfs.ext4: cannot execute binary file: Exec format error

rafal@memebook> file /nix/store/sh0plpi3ddar4g7ws7ww37r5kv0rg51j-e2fsprogs-1.47.0-bin/bin/mkfs.ext4
/nix/store/sh0plpi3ddar4g7ws7ww37r5kv0rg51j-e2fsprogs-1.47.0-bin/bin/mkfs.ext4: ELF 64-bit LSB executable, ARM aarch64, version 1 (SYSV), dynamically linked, interpreter /nix/store/n8hgw8lja68x3zhv2ww9a7b6npbkvh21-glibc-2.37-8/lib/ld-linux-aarch64.so.1, for GNU/Linux 3.10.0, not stripped

I had nix already installed, so I didn't follow your setup. Here is my nix.conf for reference:

# WARNING: this file is generated from the nix.* options in
# your nix-darwin configuration. Do not edit it!
allowed-users = *
auto-optimise-store = false
build-users-group = nixbld
builders = 
cores = 0
extra-sandbox-paths = 
extra-trusted-users = rafal
max-jobs = auto
require-sigs = true
sandbox = false
sandbox-fallback = false
substituters = https://cache.nixos.org/ https://cache.nixos.org/
trusted-public-keys = cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY= cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=
trusted-substituters = 
trusted-users = rafal
experimental-features = nix-command flakes

I tried to troubleshoot it on my own, but I can't find any clue. Maybe you have an idea of what may be the issue?

[Gabriella439]

Yeah, this is a known issue which was reported here: NixOS/nixpkgs#236656 (comment)

… and this pull request will fix it once it is merged: NixOS/nixpkgs#238596