Subtape + Fix Recursion #587

Job	Run time
test (1.7, ubuntu-latest, x64)	52s
test (1.7, ubuntu-latest, x86)	1m 0s
test (1.7, windows-latest, x64)	1m 20s
test (1.7, windows-latest, x86)	1m 45s
test (1.7, macOS-latest, x64)	1m 32s
test (1, ubuntu-latest, x64)	53s
test (1, ubuntu-latest, x86)	1m 2s
test (1, windows-latest, x64)	1m 47s
test (1, windows-latest, x86)	1m 39s
test (1, macOS-latest, x64)	1m 24s
test (nightly, ubuntu-latest, x64)	1m 16s
test (nightly, ubuntu-latest, x86)	1m 39s
test (nightly, windows-latest, x64)	1m 52s
test (nightly, windows-latest, x86)	2m 49s
test (nightly, macOS-latest, x64)	1m 41s
	22m 31s

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