Rewrite regenerateChunkRegion

src/main/resources/carpet.accesswidener

@@ -0,0 +1,4 @@
+accessWidener	v1	named
+
+accessible class net/minecraft/server/world/ThreadedAnvilChunkStorage$TicketManager
+accessible class net/minecraft/server/world/ServerLightingProvider$Stage

src/main/resources/carpet.mixins.json

@@ -33,6 +33,13 @@
     "ThreadedAnvilChunkStorage_scarpetChunkCreationMixin",
     "ChunkHolder_scarpetChunkCreationMixin",
     "ServerLightingProvider_scarpetMixin",
+	"LevelPropagatorInterface",
+	"ChunkTicketManager_scarpetChunkCreationMixin",
+	"LightingProvider_scarpetChunkCreationMixin",
+	"ChunkLightProvider_scarpetChunkCreationMixin",
+	"LightStorage_scarpetChunkCreationMixin",
+	"BlockLightStorage_scarpetChunkCreationMixin",
+	"SkyLightStorage_scarpetChunkCreationMixin",
 
     "ChunkTicketManager_spawnChunksMixin",
     "ServerWorld_spawnChunksMixin",

src/main/resources/fabric.mod.json

@@ -24,7 +24,7 @@
   "mixins": [
     "carpet.mixins.json"
   ],
-
+  "accesswidener": "carpet.accesswidener",
   "depends": {
     "minecraft": "1.15.x",
     "fabricloader": ">=0.7.1"