Post overlay addition and dmz removal nits #6889

Job	Run time
cross-i386	1m 12s
test (ubuntu-20.04, 1.22.x, rootless, -race)	7m 27s
test (ubuntu-20.04, 1.22.x, rootless)	7m 32s
test (ubuntu-20.04, 1.22.x, -race)	8m 16s
test (ubuntu-20.04, 1.22.x)	6m 45s
test (ubuntu-20.04, 1.23.x, rootless, -race)	7m 51s
test (ubuntu-20.04, 1.23.x, rootless)	7m 25s
test (ubuntu-20.04, 1.23.x, -race)	8m 6s
test (ubuntu-20.04, 1.23.x)	7m 27s
test (ubuntu-20.04, 1.23.x, criu-dev)	8m 11s
test (ubuntu-24.04, 1.22.x, rootless, -race)	9m 26s
test (ubuntu-24.04, 1.22.x, rootless)	9m 20s
test (ubuntu-24.04, 1.22.x, -race)	7m 34s
test (ubuntu-24.04, 1.22.x)	6m 36s
test (ubuntu-24.04, 1.23.x, rootless, -race)	9m 39s
test (ubuntu-24.04, 1.23.x, rootless)	9m 23s
test (ubuntu-24.04, 1.23.x, -race)	7m 51s
test (ubuntu-24.04, 1.23.x)	7m 22s
test (ubuntu-24.04, 1.23.x, criu-dev)	7m 43s
test (actuated-arm64-6cpu-8gb, 1.23.x, rootless)	11m 37s
test (actuated-arm64-6cpu-8gb, 1.23.x)	7m 39s
all-done	1s
	2h 44m 23s

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