solution: use gradle 7.2

Co-authored-by: Brian McGee <brian@41north.dev>

nix/lib/force_cached.nix

@@ -0,0 +1,38 @@
+# Source https://github.com/Mic92/nix-build-uncached/blob/master/scripts/force_cached.nix
+coreutils: attrs:
+with builtins;
+let
+  # Copied from <nixpkgs/lib>
+  isDerivation = x: isAttrs x && x ? type && x.type == "derivation";
+
+  # Return true if `nix-build` would traverse that attribute set to look for
+  # more derivations to build.
+  hasRecurseIntoAttrs = x: isAttrs x && (x.recurseForDerivations or false);
+
+  # Wraps derivations that disallow substitutes so that they can be cached.
+  toCachedDrv = drv:
+    if !(drv.allowSubstitutes or true) then
+      derivation
+        {
+          name = "${drv.name}-to-cached";
+          system = drv.system;
+          builder = "/bin/sh";
+          args = [ "-c" "${coreutils}/bin/ln -s ${drv} $out; exit 0" ];
+        }
+    else
+      drv;
+
+  op = _: val:
+    if isDerivation val then
+      toCachedDrv val
+    else if hasRecurseIntoAttrs val then
+      forceCached val
+    else
+      val
+  ;
+
+  # Traverses a tree of derivation and wrap all of those that disallow
+  # substitutes.
+  forceCached = attrs: mapAttrs op attrs;
+in
+forceCached attrs