Problem: GO_NO_VENDOR_CHECKS fix not included

Solution:
- include the fix in nixpkgs
- remove the gomod2nix patch

update gomod2nix

flake.nix

@@ -7,7 +7,7 @@
       flake = false;
     };
     gomod2nix = {
-      url = "github:obreitwi/gomod2nix/fix/go_mod_vendor";
+      url = "github:nix-community/gomod2nix";
       inputs.nixpkgs.follows = "nixpkgs";
       inputs.flake-utils.follows = "flake-utils";
     };

nix/build_overlay.nix

@@ -1,5 +1,23 @@
 # some basic overlays necessary for the build
-final: super: {
+final: super:
+let
+  replaceLast =
+    newVal: l:
+    let
+      len = builtins.length l;
+    in
+    if len == 0 then [ ] else final.lib.lists.take (len - 1) l ++ [ newVal ];
+in
+{
+  go_1_23 = super.go_1_23.overrideAttrs (old: rec {
+    version = "1.23.4";
+    src = final.fetchurl {
+      url = "https://go.dev/dl/go${version}.src.tar.gz";
+      hash = "sha256-rTRaxCHpCBQpOpaZzKGd1SOCUcP2h5gLvK4oSVsmNTE=";
+    };
+    # https://github.com/NixOS/nixpkgs/pull/372367
+    patches = replaceLast ./go_no_vendor_checks-1.23.patch old.patches;
+  });
   rocksdb = final.callPackage ./rocksdb.nix { };
   golangci-lint = final.callPackage ./golangci-lint.nix { };
 }

nix/cronos-matrix.nix

@@ -25,7 +25,7 @@ let
           | gzip -9 > $out
       '';
   bundle-win-exe = drv: callPackage ./bundle-win-exe.nix { cronosd = drv; };
-  matrix = lib.cartesianProductOfSets {
+  matrix = lib.cartesianProduct {
     network = [
       "mainnet"
       "testnet"

nix/go_no_vendor_checks-1.23.patch

@@ -0,0 +1,26 @@
+diff --git a/src/cmd/go/internal/modload/import.go b/src/cmd/go/internal/modload/import.go
+index a3105b6b6d..0e10154a70 100644
+--- a/src/cmd/go/internal/modload/import.go
++++ b/src/cmd/go/internal/modload/import.go
+@@ -345,7 +345,7 @@ func importFromModules(ctx context.Context, path string, rs *Requirements, mg *M
+ 				// vendor/modules.txt does not exist or the user manually added directories to the vendor directory.
+ 				// Go 1.23 and later require vendored packages to be present in modules.txt to be imported.
+ 				_, ok := vendorPkgModule[path]
+-				if ok || (gover.Compare(MainModules.GoVersion(), gover.ExplicitModulesTxtImportVersion) < 0) {
++				if ok || (gover.Compare(MainModules.GoVersion(), gover.ExplicitModulesTxtImportVersion) < 0) || os.Getenv("GO_NO_VENDOR_CHECKS") == "1" {
+ 					mods = append(mods, vendorPkgModule[path])
+ 					dirs = append(dirs, dir)
+ 					roots = append(roots, vendorDir)
+diff --git a/src/cmd/go/internal/modload/vendor.go b/src/cmd/go/internal/modload/vendor.go
+index b2cb44100e..05bf3829d5 100644
+--- a/src/cmd/go/internal/modload/vendor.go
++++ b/src/cmd/go/internal/modload/vendor.go
+@@ -159,7 +159,7 @@ func checkVendorConsistency(indexes []*modFileIndex, modFiles []*modfile.File, m
+ 			panic(fmt.Errorf("not in workspace mode but number of indexes is %v, not 1", len(indexes)))
+ 		}
+ 		index := indexes[0]
+-		if gover.Compare(index.goVersion, "1.14") < 0 {
++		if gover.Compare(index.goVersion, "1.14") < 0 || (os.Getenv("GO_NO_VENDOR_CHECKS") == "1" && len(vendorMeta) == 0) {
+ 			// Go versions before 1.14 did not include enough information in
+ 			// vendor/modules.txt to check for consistency.
+ 			// If we know that we're on an earlier version, relax the consistency check.