Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing
Bukkit Changes:
f50ad1f8 PR-798: Add PrepareGrindstoneEvent and refactor related events to use PrepareInventoryResultEvent
0cac7963 SPIGOT-7204: Add TeleportCause#DISMOUNT
b4dd47b0 SPIGOT-7202: Deprecate removed door effects
CraftBukkit Changes:
ab1586c2f PR-1123: Add PrepareGrindstoneEvent
b402824ea SPIGOT-7204: Add TeleportCause#DISMOUNT
06a6a1012 PR-1121: Add unit test for spawn egg meta
c18668be3 SPIGOT-7192: Call PlayerInteractEvent with Action.LEFT_CLICK_AIR if the entity interacted is hidden to the player
47124f639 Increase outdated build delay
645993470 SPIGOT-7201: Spawner ItemMeta not working as expected