rustc update still breaks build

[lilin]

I saw that there was the same issue 2 weeks ago, and apparently its closed, but I installed today with the latest release, and when referencing <apple-silicon-support/apple-silicon-support> and adding the channel, the rebuild fails, with exactly the same errors. As per default I am on nixos-unstable.

[lilin]

Guys, please. I now even tried this but it doesn't work either. I have no clue what the fuck to do now. I am stuck not really being able to rebuild my system properly.

[Rowan Goemans]

I just tried and I can rebuild my system using the current release + the current nixpkgs-unstable.

You can always reference an older nixpkgs from when the last release was. There is no reason to force yourself to be on the most recent nixpkgs.

[lilin]

Can't believe we have a 'it works on my machine' moment on nixos. What exactly are you doing? Are you referencing the channels in your configuration.nix? Because I could build my system too with the 'current release of nixos for apple silicon' as long as I was referencing the local files. But since I started referencing the channels (the official one or the temp-fix one), it doesn't work anymore. I can't even go back to referencing local files.

[Rowan Goemans]

I'm basically using the most simple bare bones config and no flakes. Flakes are a nightmare imo. I ran sudo nix-channel --update and then called ``sudo nixos-rebuild build`.

[Rowan Goemans]

This is my config stripped of mostly irrelevant program configuration:

# Edit this configuration file to define what should be installed on
# your system. Help is available in the configuration.nix(5) man page, on
# https://search.nixos.org/options and in the NixOS manual (`nixos-help`).

{ config, lib, pkgs, ... }:

{
  imports =
    [ # Include the results of the hardware scan.
      ./hardware-configuration.nix
      ./nixos-apple-silicon/apple-silicon-support
    ];

  hardware.asahi = {
    withRust = true;
    addEdgeKernelConfig = true;
    useExperimentalGPUDriver = true;
    experimentalGPUInstallMode = "replace";
  };
   
  sound.enable = true;
  hardware.opengl.enable = true;

  # Use the systemd-boot EFI boot loader.
  boot.loader.systemd-boot.enable = true;
  boot.loader.efi.canTouchEfiVariables = false;
  
  nixpkgs.config.allowUnfree = true;

  nix.package = pkgs.nixFlakes;

  nix.extraOptions = ''
    auto-optimise-store = true
    experimental-features = nix-command flakes
  '';

  users.users."rowan.goemans" = {
    isNormalUser = true;
    extraGroups = [
      "systemd-journal"
      "video"
      "audio"
      "dialout"
      "sudo"
    ];
  };

  programs.hyprland = {
    enable = true;
    xwayland.enable = true;
  };

  networking = {
    hostName = "rowanG-nixos";
    networkmanager.enable = true;
    networkmanager.wifi.backend = "iwd";
    firewall = {
      enable = true;
    };
  };

  powerManagement.cpuFreqGovernor = "performance";

  # Enable the X11 windowing system.
  services = {
    xserver = {
      enable = true;
      layout = "us";
      xkbOptions = "eurosign:e";
      dpi = 140;

      displayManager.sddm.enable = true;
    };
    
    pipewire = {
      enable = true;
      alsa.enable = true;
      alsa.support32Bit = true;
      pulse.enable = true;
    };
    # required for nm-applet?
    dbus.packages = [ pkgs.gcr ];
  };

  security.rtkit.enable = true;

  i18n.defaultLocale = "en_US.UTF-8";
  console = {
    font = "Lat2-Terminus16";
    keyMap = "us";
  };

  systemd.services.limit-charge = {
    enable = true;
    description = "limit charge to 80%";
    wantedBy = [ "multi-user.target" ];
    serviceConfig = {
      User = "root";
      Group = "root";
    };
    script = ''
      ${pkgs.coreutils}/bin/echo 80 > /sys/class/power_supply/macsmc-battery/charge_control_end_threshold
    '';
  };

  time.timeZone = "Europe/Amsterdam";

  environment.sessionVariables = {
    # If your cursor becomes invisible
    # WLR_NO_HARDWARE_CURSORS = "1";
    # Hint electron apps to use wayland
    NIXOS_OZONE_WL = "1";
  };

  environment.systemPackages = with pkgs; [
    ...
  ];

  xdg.portal = {
    enable = true;
    extraPortals = with pkgs; [
      xdg-desktop-portal-wlr
      xdg-desktop-portal-kde
      xdg-desktop-portal-gtk
    ];
  };
  # This value determines the NixOS release from which the default
  # settings for stateful data, like file locations and database versions
  # on your system were taken. It's perfectly fine and recommended to leave
  # this value at the release version of the first install of this system.
  # Before changing this value read the documentation for this option
  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
  system.stateVersion = "23.11"; # Did you read the comment?
}

[Faye Chun]

That PR looks like it only builds the kernel with that patch when withRust is enabled:

rustAtLeast = version: withRust && (lib.versionAtLeast rustc.version version);

It seems like something isn't quite right with how that patch is integrated.

@vxld100 Can you try with hardware.asahi.withRust = true;?

[lilin]

@rowanG077 yes, this is what I mean with referencing local files. What I'm doing is referencing the channels. Referencing local files worked for me too out of the box.

Thank you @noneucat. Yes, when enabling that option the config builds. I am not 100% sure it works as intended, for the system then fails to boot (using both the official apple-silicon-support or the temp-fix channel). However, I am not quite sure what the cause of that is... Should I enable some more options? Where are those hardware.asahi options documented?

The only thing that allows me to build a bootable system is using the temp-fix channel for apple silicon support with nixos-23.11, even though that forced me to ditch systemdboot (which was buggy anyways).

[Thomas]

Are you sure there is not a conflict between system channels and user channels?

I personally put this repo's apple-silicon-support directory in my /etc/nixos and avoid the channel system.

[lilin]

@tpwrules I am not sure actually. But I really like the idea of referencing the channels and not some local files so that the updates can come in more easily. This is particularly useful for the apple-silicon support software, for every update can bring entirely new features, and so it's nice to have them ASAP.