--- a/src/Pure/Build/build_process.scala Tue Mar 12 11:14:02 2024 +0100
+++ b/src/Pure/Build/build_process.scala Tue Mar 12 11:16:06 2024 +0100
@@ -229,8 +229,6 @@
running: State.Running = Map.empty,
results: State.Results = Map.empty
) {
- require(serial >= 0, "serial underflow")
-
def next_serial: Long = State.inc_serial(serial)
def inc_serial: State = copy(serial = next_serial)
--- a/src/Pure/Build/build_schedule.scala Tue Mar 12 11:14:02 2024 +0100
+++ b/src/Pure/Build/build_schedule.scala Tue Mar 12 11:16:06 2024 +0100
@@ -468,8 +468,6 @@
graph: Schedule.Graph,
serial: Long = 0,
) {
- require(serial >= 0, "serial underflow")
-
def next_serial: Long = Build_Process.State.inc_serial(serial)
def end: Date =