fix resource_tracker warning on OSX #885

Job	Run time
lint	31s
cleanup_buckets	23s
build	25s
test-windows-bundle (windows-2019)	3m 16s
test-windows-bundle (windows-latest)	3m 8s
test-linux-bundle	1m 48s
test-docker	1m 19s
test (ubuntu-latest, 3.7)	1m 4s
test (ubuntu-latest, 3.8)	45s
test (ubuntu-latest, 3.9)	45s
test (ubuntu-latest, 3.10)	43s
test (ubuntu-latest, 3.11)	58s
test (ubuntu-latest, 3.12)	53s
test (ubuntu-latest, pypy-3.10-nightly)	2m 41s
test (macos-latest, 3.7)	1m 28s
test (macos-latest, 3.8)	58s
test (macos-latest, 3.9)	1m 31s
test (macos-latest, 3.10)	59s
test (macos-latest, 3.11)	1m 19s
test (macos-latest, 3.12)	1m 42s
test (windows-latest, 3.7)	1m 53s
test (windows-latest, 3.8)	1m 41s
test (windows-latest, 3.9)	1m 33s
test (windows-latest, 3.10)	1m 37s
test (windows-latest, 3.11)	1m 54s
test (windows-latest, 3.12)	2m 5s
doc	49s
	38m 8s

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