Format project using nixfmt rfc candidate.

pkgsets/rustpkgs.nix

@@ -1,15 +1,22 @@
-{config, ...}: let
-  mozRust = with builtins;
-    (map (p:
-      import ((fetchTarball {
+{ config, ... }:
+let
+  mozRust =
+    with builtins;
+    (map (
+      p:
+      import (
+        (fetchTarball {
           url = "https://github.com/mozilla/nixpkgs-mozilla/archive/e912ed4.tar.gz";
           sha256 = "08fvzb8w80bkkabc1iyhzd15f4sm7ra10jn32kfch5klgl0gj3j3";
         })
-        + p))) [
-      (toPath "/lib-overlay.nix")
-      (toPath "/rust-overlay.nix")
-    ];
-  stablepkgs = import <nixos-stable> {overlays = mozRust;};
+        + p
+      )
+    ))
+      [
+        (toPath "/lib-overlay.nix")
+        (toPath "/rust-overlay.nix")
+      ];
+  stablepkgs = import <nixos-stable> { overlays = mozRust; };
 
   # https://rust-lang.github.io/rustup-components-history
   nightly = stablepkgs.rustChannelOf {
@@ -27,18 +34,26 @@
           "rustfmt-preview"
         ];
       }
-      // {src = nightly.rust-src;};
+      // {
+        src = nightly.rust-src;
+      };
     inherit (nightly) cargo;
   };
-  rustPNightly = stablepkgs.recurseIntoAttrs (stablepkgs.makeRustPlatform {
-    inherit (rustNightly) rustc cargo;
-  });
-in {
+  rustPNightly = stablepkgs.recurseIntoAttrs (
+    stablepkgs.makeRustPlatform {
+      inherit (rustNightly) rustc cargo;
+    }
+  );
+in
+{
   config.machine.pkgsets.rustpkgs.pkgs =
     (with stablepkgs; [
       diesel-cli
       carnix
       rustracer
     ])
-    ++ (with rustNightly; [rustc cargo]);
+    ++ (with rustNightly; [
+      rustc
+      cargo
+    ]);
 }