Rust

Merge pull request #3220 from jlebon/pr/on-failure-isolate #2069

Job	Run time
build	2m 4s
Build, minimum supported toolchain (MSRV)	1m 27s
build-git-libostree	3m 59s
build-no-features	1m 24s
cargo-deny	23s
	9m 17s

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