Rust

Merge pull request #3216 from cgwalters/mirrorlist-retries #2066

Job	Run time
build	2m 10s
build-git-libostree	4m 21s
Build, minimum supported toolchain (MSRV)	1m 33s
build-no-features	1m 34s
cargo-deny	26s
	10m 4s

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