we don't need to build rust-stable, nixpkgs has a recent one

Author: ggreif

flake.nix

@@ -150,7 +150,7 @@
       };
 
       # Define test-runner package.
-      test-runner = pkgs.rustPlatform-stable.buildRustPackage {
+      test-runner = pkgs.rustPlatform.buildRustPackage {
         pname = "test-runner";
         version = "0.1.0";
         src = ./test-runner;

nix/ic-wasm.nix

@@ -1,4 +1,4 @@
-pkgs: with pkgs.llvmPackages_19; pkgs.rustPlatform-stable.buildRustPackage rec {
+pkgs: with pkgs.llvmPackages_19; pkgs.rustPlatform.buildRustPackage rec {
   pname = "ic-wasm";
   version = builtins.substring 0 7 src.rev;
   src = pkgs.sources.ic-wasm-src;

nix/pkgs.nix

@@ -40,7 +40,7 @@
     }
     )
 
-    # Rust Nightly & Stable
+    # Rust Nightly
     rust-overlay.overlays.default
     (self: super: {
       # When you change the rust-nightly version,
@@ -49,13 +49,6 @@
         extensions = [ "rust-src" ];
         targets = [ "wasm32-wasip1" ];
       };
-
-      rust-stable = self.rust-bin.stable."1.94.1".default;
-
-      rustPlatform-stable = self.makeRustPlatform rec {
-        rustc = self.rust-stable;
-        cargo = rustc;
-      };
     })
 
     # wasm-profiler