Update no_atomic.rs #2309

Job	Run time
clippy	38s
codegen	41s
dependencies	26s
docs	21s
careful	7m 6s
features (1.38)	1m 5s
features (nightly)	46s
loom	1m 26s
miri	21m 46s
rustfmt	20s
san	18m 23s
shellcheck	8s
test (1.38, ubuntu-latest)	14m 50s
test (1.38, windows-latest)	25m 24s
test (stable, ubuntu-latest)	12m 11s
test (stable, windows-latest)	18m 41s
test (nightly, ubuntu-latest)	11m 49s
test (nightly, windows-latest)	19m 8s
test (nightly, ubuntu-latest, i686-unknown-linux-gnu)	12m 54s
test (nightly, ubuntu-latest, armv7-unknown-linux-gnueabihf)	23m 38s
test (nightly, ubuntu-latest, armv5te-unknown-linux-gnueabi)	19m 41s
ci	0s
	3h 31m 22s

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