fix: solve tls drop panic when task queue drop (#257) #595

Job	Run time
test (x86_64-unknown-linux-gnu, stable)	4m 49s
test (x86_64-unknown-linux-gnu, nightly)	5m 22s
test (i686-unknown-linux-gnu, stable)	2m 29s
test (i686-unknown-linux-gnu, nightly)	2m 23s
test (aarch64-unknown-linux-gnu, stable)	1m 36s
test (aarch64-unknown-linux-gnu, nightly)	1m 25s
test (armv7-unknown-linux-gnueabihf, stable)	1m 51s
test (armv7-unknown-linux-gnueabihf, nightly)	1m 38s
test (riscv64gc-unknown-linux-gnu, stable)	1m 39s
test (riscv64gc-unknown-linux-gnu, nightly)	1m 38s
test (s390x-unknown-linux-gnu, stable)	1m 34s
test (s390x-unknown-linux-gnu, nightly)	1m 40s
test (x86_64-apple-darwin, stable)	3m 41s
test (x86_64-apple-darwin, nightly)	3m 27s
test (aarch64-apple-darwin, stable)	2m 36s
test (aarch64-apple-darwin, nightly)	2m 35s
test (x86_64-pc-windows-gnu, stable)	4m 5s
test (x86_64-pc-windows-gnu, nightly)	2m 36s
test (x86_64-pc-windows-msvc, stable)	4m 30s
test (x86_64-pc-windows-msvc, nightly)	4m 50s
test (i686-pc-windows-gnu, stable)	5m 36s
test (i686-pc-windows-gnu, nightly)	5m 19s
test (i686-pc-windows-msvc, stable)	3m 13s
test (i686-pc-windows-msvc, nightly)	2m 24s
	1h 12m 56s

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