From d02aef570056fdc4efbe757e898328b46e0890e6 Mon Sep 17 00:00:00 2001
From: Kamen Mladenov <kamen@syndamia.com>
Date: Fri, 21 Mar 2025 11:13:57 +0200
Subject: chore(flake.nix): Replace rust-overlay with fenix

This follows the same change which was made in mcl-blockchain
---
 zkvms/zkwasm/default.nix | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

(limited to 'zkvms/zkwasm')

diff --git a/zkvms/zkwasm/default.nix b/zkvms/zkwasm/default.nix
index 88947ba..e78d721 100644
--- a/zkvms/zkwasm/default.nix
+++ b/zkvms/zkwasm/default.nix
@@ -1,4 +1,4 @@
-{ zkvmLib, lib, rust-bin, metacraft-labs, wasm-pack, wasm-bindgen-cli, binaryen
+{ zkvmLib, lib, fenix, metacraft-labs, wasm-pack, wasm-bindgen-cli, binaryen
 , craneLib-default, stdenv, }:
 let
   commonArgs = rec {
@@ -13,9 +13,17 @@ let
       };
   };
 
-  rust-toolchain = rust-bin.nightly."2024-04-09".default.override {
-    targets = [ "wasm32-unknown-unknown" ];
-  };
+  rust-toolchain = let
+    toolchain-arg = {
+        channel = "nightly";
+        date = "2024-04-09";
+        sha256 = "sha256-Pf/EIA/M8/JpX7naMcutqBajVwhZoqrPkkyBwho6dyI=";
+      };
+  in with fenix; combine [
+    (toolchainOf toolchain-arg).minimalToolchain
+    (targets.wasm32-unknown-unknown.toolchainOf toolchain-arg).toolchain
+  ];
+
   craneLib = craneLib-default.overrideToolchain rust-toolchain;
   cargoArtifacts = zkvmLib.buildDepsOnly craneLib commonArgs;
 in zkvmLib.buildPackage craneLib (commonArgs // {
-- 
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