Rust

Merge pull request #3077 from cgwalters/debug-finalization-lock #1715

Job	Run time
build	3m 7s
build-git-libostree	4m 16s
Build, minimum supported toolchain (MSRV)	2m 16s
build-no-features	2m 4s
cargo-deny	41s
	12m 24s

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