Rust

Merge pull request #1600 from coreos/dependabot/cargo/tempfile-3.16.0 #2846

Job	Run time
Docs	1m 18s
Tests, minimum supported toolchain (x86_64)	2m 4s
Lints, pinned toolchain (x86_64)	50s
Tests, minimum supported toolchain (s390x)	12m 2s
Tests, unstable toolchain (beta, x86_64)	2m 3s
Lints, pinned toolchain (s390x)	6m 31s
Tests, unstable toolchain (nightly, x86_64)	2m 48s
Tests, stable toolchain (x86_64)	2m 11s
Tests, stable toolchain (s390x)	12m 0s
	41m 47s

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