use node_dig again, and get rid of pcalls

game.conf

@@ -1,4 +1,4 @@
 title       = Minetest Game
 author      = Minetest
 description = A basic exploration, mining, crafting, and building, sandbox game with no NPCs, monsters, or animals. Minetest Game is usually used with mods added, and many mods are available for this game. Reliably maintained by Minetest Engine core developers.
-min_minetest_version = 5.9
+min_minetest_version = 5.8

mods/default/functions.lua

@@ -312,18 +312,7 @@ function default.dig_up(pos, node, digger, max_height)
 		if up_node.name ~= node.name then
 			break
 		end
-		local noerr, success = xpcall(function()
-			return minetest.dig_node(up_pos, digger)
-		end, function(...)
-			in_dig_up = false
-			local errmsg = "Error raised during `default.dig_up` call: " .. minetest.error_handler(...)
-			for line in errmsg:gmatch("([^\n]*)\n?") do
-				minetest.log("error", line)
-			end
-		end)
-		if not noerr then
-			error("Error raised during `default.dig_up` call")
-		elseif not success then
+		if not minetest.node_dig(up_pos, up_node, digger) then
 			break
 		end
 	end
@@ -334,6 +323,7 @@ minetest.register_globalstep(function()
 	in_dig_up = false
 end)
 
+
 --
 -- Fence registration helper
 --