poac: mark as broken

pkgs/development/tools/poac/default.nix

@@ -95,9 +95,7 @@ stdenv.mkDerivation rec {
     license = licenses.asl20;
     maintainers = with maintainers; [ ];
     platforms = platforms.unix;
-    # https://github.com/NixOS/nixpkgs/pull/189712#issuecomment-1237791234
-    broken = (stdenv.isLinux && stdenv.isAarch64)
-    # error: excess elements in scalar initializer on std::aligned_alloc
-          || (stdenv.isDarwin && stdenv.isx86_64);
+    # error: call to 'format' is ambiguous
+    broken = true; # last successful build 2023-12-31
   };
 }