fix: fix an error in CI #694

Job	Run time
test (x86_64-unknown-linux-gnu, stable)	4m 35s
test (x86_64-unknown-linux-gnu, nightly)	6m 6s
test (aarch64-unknown-linux-gnu, stable)	1m 48s
test (aarch64-unknown-linux-gnu, nightly)	2m 5s
test (armv7-unknown-linux-gnueabihf, stable)	1m 40s
test (armv7-unknown-linux-gnueabihf, nightly)	2m 4s
test (riscv64gc-unknown-linux-gnu, stable)	1m 52s
test (riscv64gc-unknown-linux-gnu, nightly)	2m 3s
test (s390x-unknown-linux-gnu, stable)	1m 47s
test (s390x-unknown-linux-gnu, nightly)	1m 55s
test (x86_64-apple-darwin, stable)	1m 10s
test (x86_64-apple-darwin, nightly)	1m 18s
test (aarch64-apple-darwin, stable)	2m 31s
test (aarch64-apple-darwin, nightly)	2m 47s
test (x86_64-pc-windows-gnu, stable)	2m 30s
test (x86_64-pc-windows-gnu, nightly)	2m 43s
test (x86_64-pc-windows-msvc, stable)	5m 10s
test (x86_64-pc-windows-msvc, nightly)	5m 13s
test (i686-pc-windows-gnu, stable)	5m 23s
test (i686-pc-windows-gnu, nightly)	4m 42s
test (i686-pc-windows-msvc, stable)	3m 37s
test (i686-pc-windows-msvc, nightly)	2m 23s
	1h 5m 22s

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