Make crossbeam-epoch compatible with ThreadSanitizer #2499

Job	Run time
dependencies	19s
features (1.61)	1m 39s
codegen	35s
features (nightly)	29s
test (1.61, ubuntu-latest)	12m 2s
careful	5m 24s
test (1.61, windows-latest)	16m 11s
clippy	15s
test (stable, ubuntu-latest)	9m 43s
docs	14s
test (stable, windows-latest)	14m 35s
loom	1m 0s
test (nightly, ubuntu-latest)	9m 56s
miri	19m 37s
test (nightly, windows-latest)	13m 56s
rustfmt	4s
test (nightly, ubuntu-latest, i686-unknown-linux-gnu)	10m 24s
san	13m 40s
test (nightly, ubuntu-latest, armv7-unknown-linux-gnueabihf)	15m 8s
shellcheck	8s
test (nightly, ubuntu-latest, armv5te-unknown-linux-gnueabi)	16m 21s
	2h 41m 40s

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