fix: solve tls drop panic when task queue drop (#257) #596

Job	Run time
test (x86_64-unknown-linux-gnu, stable)	4m 38s
test (x86_64-unknown-linux-gnu, nightly)	4m 36s
test (i686-unknown-linux-gnu, stable)	2m 20s
test (i686-unknown-linux-gnu, nightly)	2m 25s
test (aarch64-unknown-linux-gnu, stable)	1m 26s
test (aarch64-unknown-linux-gnu, nightly)	1m 24s
test (armv7-unknown-linux-gnueabihf, stable)	1m 40s
test (armv7-unknown-linux-gnueabihf, nightly)	1m 59s
test (riscv64gc-unknown-linux-gnu, stable)	1m 45s
test (riscv64gc-unknown-linux-gnu, nightly)	1m 38s
test (s390x-unknown-linux-gnu, stable)	1m 44s
test (s390x-unknown-linux-gnu, nightly)	1m 46s
test (x86_64-apple-darwin, stable)	3m 40s
test (x86_64-apple-darwin, nightly)	3m 47s
test (aarch64-apple-darwin, stable)	2m 36s
test (aarch64-apple-darwin, nightly)	2m 38s
test (x86_64-pc-windows-gnu, stable)	4m 0s
test (x86_64-pc-windows-gnu, nightly)	2m 52s
test (x86_64-pc-windows-msvc, stable)	5m 34s
test (x86_64-pc-windows-msvc, nightly)	5m 12s
test (i686-pc-windows-gnu, stable)	4m 58s
test (i686-pc-windows-gnu, nightly)	5m 18s
test (i686-pc-windows-msvc, stable)	2m 45s
test (i686-pc-windows-msvc, nightly)	2m 5s
	1h 12m 46s

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