Rust

Merge pull request #3063 from cgwalters/label-usretc-as-etc #1698

Job	Run time
build	3m 13s
build-git-libostree	5m 27s
Build, minimum supported toolchain (MSRV)	2m 6s
build-no-features	1m 55s
cargo-deny	25s
	13m 6s

Provide feedback