Rust

Make dockerfile build florestad (#96) #259

Job	Run time
build	1m 58s
linting	49s
cross-testing (stable, ubuntu-latest)	1m 35s
cross-testing (stable, windows-latest)	3m 59s
cross-testing (stable, macos-latest)	2m 36s
cross-testing (nightly, ubuntu-latest)	1m 12s
cross-testing (nightly, windows-latest)	3m 40s
cross-testing (nightly, macos-latest)	2m 57s
cross-testing (1.64, ubuntu-latest)	1m 19s
cross-testing (1.64, windows-latest)	2m 54s
cross-testing (1.64, macos-latest)	1m 44s
	24m 43s

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