Make crossbeam-epoch compatible with ThreadSanitizer #2562

Job	Run time
dependencies	22s
features (msrv)	52s
features (nightly)	32s
careful	5m 18s
codegen	27s
clippy	14s
loom	1m 16s
miri	20m 54s
san	13m 33s
test (1.61, ubuntu-latest)	10m 55s
docs	17s
test (1.61, windows-latest)	15m 9s
rustfmt	8s
test (stable, ubuntu-latest)	9m 47s
test (stable, windows-latest)	13m 55s
shellcheck	22s
test (nightly, ubuntu-latest)	9m 38s
test (nightly, windows-latest)	13m 28s
test (nightly, ubuntu-latest, i686-unknown-linux-gnu)	9m 59s
test (nightly, ubuntu-latest, armv7-unknown-linux-gnueabihf)	14m 9s
test (nightly, ubuntu-latest, armv5te-unknown-linux-gnueabi)	15m 43s
	2h 36m 58s

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