trace: warning: The option `services.xserver.displayManager.sddm.autoLogin.user' defined in `/etc/nixos/configuration.nix' has been renamed to `services.xserver.displayManager.autoLogin.user'.
trace: warning: The option `services.xserver.displayManager.sddm.autoLogin.enable' defined in `/etc/nixos/configuration.nix' has been renamed to `services.xserver.displayManager.autoLogin.enable'.

error: Package ‘bustle-0.8.0’ in /nix/store/7zz428l2ggna7364wzykdvn5r2yxki4s-source/pkgs/development/haskell-modules/hackage-packages.nix:46070 is marked as broken, refusing to evaluate.

a) For `nixos-rebuild` you can set
  { nixpkgs.config.allowBroken = true; }
in configuration.nix to override this.

b) For `nix-env`, `nix-build`, `nix-shell` or any other Nix command you can add
  { allowBroken = true; }
to ~/.config/nixpkgs/config.nix.

(use '--show-trace' to show detailed location information)