Rust

Introduce Checksumming #444

Job	Run time
Ensure clippy is happy on heed and heed3	18s
Check the heed3 project (ubuntu-latest)	17s
Check all the features of the heed project (ubuntu-latest)	6s
Check all the features of the heed3 project (ubuntu-latest)	16s
Check the heed3 project (windows-latest)	56s
Check all the features of the heed project (macos-latest)	10s
Run the heed examples (ubuntu-latest)	10s
Check the heed3 project (macos-latest)	21s
Check all the features of the heed3 project (macos-latest)	20s
Run the heed examples (macos-latest)	11s
Ensure the heed and heed3 project are formatted	13s
Run the heed3 examples (ubuntu-latest)	32s
Test the heed3 project (ubuntu-latest)	38s
Run the heed3 examples (macos-latest)	32s
Test the heed project (ubuntu-latest)	40s
Test the heed3 project (windows-latest)	39s
Ensure heed3 is not erasing heed	4s
Test the heed project (windows-latest)	45s
Test the heed3 project (macos-latest)	37s
Test the heed project (macos-latest)	38s
	8m 23s

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