xidica build problem

shell

export NIX_PATH=nixpkgs=https://github.com/nixos/nixpkgs/archive/dae3575cee5b88de966d06b11861c602975cb23a.tar.gz:unstable=channel:nixos-unstable:nixos-config=/tmp/xidica.nix:nixos-hardware=https://github.com/nixos/nixos-hardware/archive/master.tar.gz
nix-build '<nixpkgs/nixos>' -A system
=> /nix/store/9439jp11f3dlarp7f3g3dlfzvwq7adwx-nixos-system-nixos-19.09pre-git

xidica.nix

{ config, pkgs, ... }:
let
  unstable = import <unstable> {};
in
{
  imports =
    [ # Include the results of the hardware scan.
      <nixos-hardware/lenovo/thinkpad/t460s>
    ];

  nixpkgs.config.allowUnfree = true;

  #UNCOMMENT THIS TO BREAK THE BUILD
  boot.kernelPackages = pkgs.linuxPackages_latest;

  #boot.extraModulePackages = with config.boot.kernelPackages; [ virtualbox acpi_call ];

  fileSystems."/" = { device = "foo"; };

  # usb keyboard support in initrd for luks password
  boot.initrd.kernelModules = [
    "usbcore"
    "usb_common"
    "usbhid"
    "hid"
    "ehci_pci"
    "xhci_hcd"
    "ohci_hcd"
    "uhci_hcd"
    "ehci_hcd"
    "hid_generic"
    "hid_lenovo"
    "hid_microsoft"
  ];

  # could be needed if hang on boot
  # https://bugzilla.kernel.org/show_bug.cgi?id=110941
  boot.kernelParams = [
    "intel_pstate=no_hwp"
    "i915.enable_psr=0"
    "i915.enable_fbc=0"
    "i915.enable_guc=2" # https://wiki.archlinux.org/index.php/Intel_graphics#Skylake_support
    "i915.modeset=1"
  ];

  # disable atime for performance (also helps SSD)
  fileSystems."/".options = [ "noatime" "nodiratime" "discard" ];

  # Use the GRUB 2 boot loader.
  boot.loader.grub.enable = true;
  boot.loader.grub.version = 2;
  boot.loader.grub.device = "nodev"; # or "nodev" for efi only
  boot.loader.grub.efiSupport = true;
  boot.loader.efi.canTouchEfiVariables = true;

  # slow if higher res
  boot.loader.grub.gfxmodeEfi = "1024x768";

  # luks crypto
  boot.initrd.luks.devices = [
    {
      name = "root";
      device = "/dev/disk/by-uuid/6a12ceea-f19b-40b6-bb0e-76993bda4764";
      preLVM = true;
      allowDiscards = true;
    }
  ];

  # Set your time zone.
  time.timeZone = "Europe/Copenhagen";

  # useful base packages
  environment.systemPackages = with pkgs; [
    bind # to provide dig
    busybox
    curl
    file
    fwupd
    git
    glxinfo
    libnotify
    linuxPackages.acpi_call
    lm_sensors
    lsof
    neomutt
    nox
    openssl
    pinentry
    screen
    scrot
    sysbench
    unstable.brave
    vim
    wget
    whois
  ];

  programs.zsh = {
    enable = true;
    autosuggestions.enable = true;
    enableCompletion = true;
    ohMyZsh.enable = true;
    ohMyZsh.plugins = [
      "git"
      "git-prompt"
      "jira"
    ];
    ohMyZsh.theme = "";
  };
  # make vim the default editor
  programs.vim.defaultEditor = true;

  # Some programs need SUID wrappers, can be configured further or are
  # started in user sessions.
  programs.mtr.enable = true;
  programs.ssh = {
    startAgent = true;
  };

  # disable suspend when closing lid, it causes hard crashes as something els
  # is already trying to suspend
  services.logind = {
    lidSwitch = "ignore";
    lidSwitchDocked = "ignore";
    lidSwitchExternalPower = "ignore";
  };

  # firmware update daemon
  services.fwupd.enable = true;

  # tlp for power management
  services.tlp.enable = true;

  # Enable the X11 windowing system.
  services.xserver = {
    enable = true;
    autorun = true;
    layout = "us";
    useGlamor = true;
    xkbOptions = "eurosign:e";

    videoDrivers = [
      "modesetting"
    ];

    # autolock
    xautolock = {
      enable = true;
      enableNotifier = false;
      # currently this just spawns loads of notifiers if left unattended
      #notifier = "${pkgs.i3}/bin/i3-nagbar -m \"xautolocking soon\" -t warning";
      time = 2; # in minutes
      locker = "${pkgs.i3lock}/bin/i3lock";
    };

    # touchpad support
    libinput = {
      enable = true;
      tapping = false;
      tappingDragLock = false;
    };
    desktopManager = {
      default = "none";
      xterm.enable = false;
    };

    displayManager = {
      lightdm.enable = true;
    };

    windowManager.i3 = {
      enable = true;
      extraPackages = with pkgs; [
        dmenu
        i3lock
        i3status-rust
      ];
    };
  };

  fonts.fonts = with pkgs; [
    dejavu_fonts
    powerline-fonts
    font-awesome_4
  ];
  # cph
  location = {
    latitude = 0.0;
    longitude = 0.0;
  };
  services.redshift = {
    enable = true;
    brightness.day = "1.0";
    brightness.night = "1.0";
  };

  # This value determines the NixOS release with which your system is to be
  # compatible, in order to avoid breaking some software such as database
  # servers. You should change this only after NixOS release notes say you
  # should.
  system.stateVersion = "19.09"; # Did you read the comment?
}