Implement shield zip317 #1149

Job	Run time
Build test artifacts	6m 21s
Reject trailing whitespace	5s
cargo-checkmate / Cache checkmate	12s
cargo-checkmate / Cargo checkmate (build)	6m 27s
cargo-checkmate / Cargo checkmate (check)	6m 18s
cargo-checkmate / Cargo checkmate (clippy)	6m 4s
cargo-checkmate / Cargo checkmate (doc)	6m 11s
cargo-checkmate / Cargo checkmate (format)	14s
Run tests (1)	3m 33s
Run tests (2)	3m 34s
Run tests (3)	3m 34s
Run tests (4)	3m 34s
Run tests (5)	3m 34s
Run tests (6)	3m 33s
Run tests (7)	3m 32s
Run tests (8)	3m 27s
	1h 0m 13s

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