Vendor Rust crates into source distributions #61

Job	Run time
unit (3.10, 1.75)	53s
e2e (3.10, 1.75, bootstrap)	1m 2s
unit (3.11, 1.75)	50s
e2e (3.10, 1.75, report_missing_dependency)	1m 5s
unit (3.12, 1.75)	58s
e2e (3.10, 1.75, build_with_build_order)	1m 31s
e2e (3.10, 1.75, override)	37s
e2e (3.11, 1.75, bootstrap)	54s
e2e (3.11, 1.75, report_missing_dependency)	1m 0s
e2e (3.11, 1.75, build_with_build_order)	1m 30s
e2e (3.11, 1.75, override)	34s
e2e (3.12, 1.75, bootstrap)	1m 1s
e2e (3.12, 1.75, report_missing_dependency)	1m 8s
e2e (3.12, 1.75, build_with_build_order)	1m 41s
e2e (3.12, 1.75, override)	37s
	15m 21s

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