Deploying to Hetzner /bin/udevadm: cannot execute binary file: Exec format error

[gallexme]

steps to reproduce:

{
  example = {
    deployment.targetEnv = "hetzner";
    deployment.hetzner.mainIPv4 = "xxxx";
    deployment.hetzner.robotUser = "xyz";
    deployment.hetzner.robotPass = "yz";
    deployment.hetzner.createSubAccount = false;
    deployment.hetzner.partitions = ''
      clearpart --all --initlabel --drives=sda,sdb

      part swap1 --recommended --label=swap1 --fstype=swap --ondisk=sda
      part swap2 --recommended --label=swap2 --fstype=swap --ondisk=sdb

      part btrfs.1 --grow --ondisk=sda
      part btrfs.2 --grow --ondisk=sdb

      btrfs / --data=1 --metadata=1 --label=root btrfs.1 btrfs.2
    '';
  };
}

WSL Ubuntu 18.04.1 LTS
curl https://nixos.org/nix/install | sh
git clone https://github.com/NixOS/nixops.git
cd nixops && ./dev-shell && cd ..
nixops create -d example example.nix
nixops deploy -d example

stops at

warning: working around a Linux kernel bug by creating a hole of 2097152 bytes in ‘/nix/store/brxh74wgp086n7y89zznmd1ylkcnsxws-extra-utils/bin/udevadm’
patching /nix/store/brxh74wgp086n7y89zznmd1ylkcnsxws-extra-utils/bin/v4l_id...
warning: working around a Linux kernel bug by creating a hole of 2097152 bytes in ‘/nix/store/brxh74wgp086n7y89zznmd1ylkcnsxws-extra-utils/bin/v4l_id’
testing patched programs...
hello world
/tmp/nix-build-extra-utils.drv-0/.attr-0: line 96: /nix/store/brxh74wgp086n7y89zznmd1ylkcnsxws-extra-utils/bin/udevadm: cannot execute binary file: Exec format error
builder for '/nix/store/6ngvxvq53i6anhlgpdlaahbs0lry4c7n-extra-utils.drv' failed with exit code 126
building '/nix/store/bn6yg6jnm46hxhn2qd23h9aq2z3hs502-firewall-stop.drv'...
cannot build derivation '/nix/store/dhbpq4ixaf62h6zryjq7qrpwd5lm2pjb-stage-1-init.sh.drv': 1 dependencies couldn't be built
cannot build derivation '/nix/store/37ga9wz1s3d1cl9agb8f7x0rdk68x4vy-initrd.drv': 1 dependencies couldn't be built
cannot build derivation '/nix/store/mxh9dky47lkyihb8q8xdrl0m10khrb09-nixos-system-example-19.03pre159144.0249f7d48af.drv': 1 dependencies couldn't be built
cannot build derivation '/nix/store/ad7xwbhi7mkmk9yp8pdl73na04f1c1vz-nixops-machines.drv': 1 dependencies couldn't be built
error: build of '/nix/store/ad7xwbhi7mkmk9yp8pdl73na04f1c1vz-nixops-machines.drv' failed