undefined variable 'mkOptionType'

[happysalada]

Describe the bug Trying to rebuild my system, I get the following error

error: --- UndefinedVarError ------------------------------------------------------------------- nix-build
at: (82:12) in file: /nix/store/wvsbqyrcqjixahny24bvn2b6k8mkcgv9-nixpkgs-21.03pre246624.cfed29bfcb2/nixpkgs/lib/options.nix

    81|     description = "Sink for option definitions.";
    82|     type = mkOptionType {
      |            ^
    83|       name = "sink";

undefined variable 'mkOptionType'
(use '--show-trace' to show detailed location information)

To Reproduce

1. using unstable channel, update to the latest available build
2. Using home manager and the master channel
3. trying to home-manager switch with the following file

{ pkgs, ... }:
let

  unstable = import <nixpkgs-unstable> { };

  programSettings = import ./programs { };

  doom-emacs = pkgs.callPackage (builtins.fetchTarball {
    url = "https://github.com/vlaci/nix-doom-emacs/archive/master.tar.gz";
  }) {
    doomPrivateDir = ./doom.d; # Directory containing your config.el init.el
    emacsPackagesOverlay = self: super: {
      magit-delta = super.magit-delta.overrideAttrs
        (esuper: { buildInputs = esuper.buildInputs ++ [ pkgs.git ]; });
    };
  };

in {

  home = {
    username = "raphael";
    homeDirectory = "/Users/raphael";
    # This value determines the Home Manager release that your
    # configuration is compatible with. This helps avoid breakage
    # when a new Home Manager release introduces backwards
    # incompatible changes.
    #
    # You can update Home Manager without changing this value. See
    # the Home Manager release notes for a list of state version
    # changes in each release.
    stateVersion = "20.09";

    # List packages installed in system profile. To search by name, run:
    # $ nix-env -qaP | grep wget
    packages = with unstable; [
      doom-emacs # editor
      gitAndTools.delta # better git diff
      # spacevim # to try to setup one day
      # vlc # video player. does not compile on darwin

      # dev
      bottom # rust htop
      # elixir related
      beam.packages.erlangR23.elixir_1_11
      nodejs-15_x
      yarn
      postgresql_13
      # rust
      rustup
      sccache
      cargo-edit # build fails on macos for now
      cargo-deps
      wasm-pack
      rust-analyzer
      wrangler # deploy static sites with cloudflare
      # js
      nodePackages.prettier

      # network
      mtr # network traffic
      # tcptrack # does not work on macos

      mdbook # for documentation sites

      # nix
      nixfmt
      nodePackages.node2nix

      # keyboard dactyl stuff
      clojure
      # jdk # failed on last switch
      leiningen
      # for qmk
      pkgsCross.avr.buildPackages.gcc
      pkgsCross.avr.buildPackages.binutils

      # embedded
      # etcher
    ];

    file.".tmux.conf".source = ../.tmux.conf;
    file.".cargo/config.toml".source = ../config.cargo.toml;

    # doom config
    file.".emacs.d/init.el".text = ''
      (load "default.el")
    '';
  };

  news.display = "silent";

  programs = {
    # Let Home Manager install and manage itself.
    home-manager = {
      enable = true;
      path = "$HOME/.dotfiles/nix/home.nix";
    };

    inherit (programSettings) alacritty git fish ssh;

    tmux.enable = true;

    direnv = {
      enable = true;
      enableFishIntegration = true;
      enableNixDirenvIntegration = true;
    };

    starship = {
      enable = true;
      enableFishIntegration = true;
      settings = {
        add_newline = false;
        character.symbol = "|>";
        package.disabled = true;
      };
    };

    broot = {
      enable = true;
      enableFishIntegration = true;
      verbs = [
        {
          invocation = "p";
          execution = ":parent";
        }
        {
          invocation = "edit";
          shortcut = "e";
          execution = "$EDITOR {file}";
        }
        {
          invocation = "create {subpath}";
          execution = "$EDITOR {directory}/{subpath}";
        }
      ];
    };

    zoxide = {
      enable = true;
      enableFishIntegration = true;
    };

    password-store = {
      enable = true;
      settings = {
        PASSWORD_STORE_DIR = "$HOME/.password-store";
        PASSWORD_STORE_KEY = "raphael@megzari.com";
        PASSWORD_STORE_CLIP_TIME = "60";
      };
    };

    skim = {
      enable = true;
      enableFishIntegration = true;
    };

    mcfly = {
      enable = true;
      enableFishIntegration = true;
    };
  };

  # wait until spacevim comes around
  # programs.neovim = import ./programs/neovim.nix { pkgs = pkgs; };

  # programs.neomutt = { enable = true; }; try out sometime
  # https://github.com/neomutt/neomutt

  # somehow firefox says not supported
  # programs.firefox = {
  #   enable = true;
  #   # install https://github.com/nix-community/NUR first
  #   # extensions = with pkgs.nur.repos.rycee.firefox-addons; [
  #   #   https-everywhere
  #   #   privacy-badger
  #   # ];
  # };

}

Expected behavior No error on trying to rebuild the system

Screenshots If applicable, add screenshots to help explain your problem.

Additional context Add any other context about the problem here.

Notify maintainers

Metadata Please run nix-shell -p nix-info --run "nix-info -m" and paste the result.

Maintainer information:

# a list of nixpkgs attributes affected by the problem
attribute:
# a list of nixos modules affected by the problem
module:

[infinisil]

I believe this was fixed in https://github.com/NixOS/nixpkgs/pull/101139, which doesn't seem to be included in the commit you're using (cfed29bfcb2).

Please run the nix-info -m command given in the issue template so we know where nixpkgs comes from

[happysalada]

Thanks a lot for the help!

- system: `"x86_64-darwin"`
 - host os: `Darwin 19.6.0, macOS 10.15.7`
 - multi-user?: `yes`
 - sandbox: `no`
 - version: `nix-env (Nix) 3.0pre20200829_f156513`
 - channels(root): `"nixpkgs-21.03pre246624.cfed29bfcb2"`
 - channels(raphael): `"darwin, home-manager, nixpkgs-unstable-21.03pre266131.e61999b3f24"`
 - nixpkgs: `/nix/var/nix/profiles/per-user/root/channels/nixpkgs`

Let me update my system

[happysalada]

I noticed that the root channels and the user channels were out of sync. I didn't know there was a root channel. After a bit of searching, the system told me to remove nix-defexpr and do a nix-channel update to regenerate the channels. Thanks again for your help!