Add collector-level na support #642

Job	Run time
macos-latest (release)	2m 41s
windows-latest (release)	7m 30s
windows-latest (3.6)	4m 41s
windows-latest (4.1)	9m 32s
windows-latest (devel)	7m 26s
ubuntu-latest (devel)	4m 25s
ubuntu-latest (release)	4m 1s
ubuntu-latest (oldrel-1)	4m 11s
ubuntu-latest (oldrel-2)	4m 17s
ubuntu-latest (oldrel-3)	3m 52s
ubuntu-latest (oldrel-4)	4m 24s
ubuntu-latest (release) en_US.ISO-8859-1	4m 24s
	1h 1m 24s

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