Rust

Introduce Checksumming #421

Job	Run time
Test the heed3 project (ubuntu-latest)	35s
Test the heed3 project (windows-latest)	3m 16s
Test the heed3 project (macos-latest)	38s
Check all the features of the heed3 project (ubuntu-latest)	19s
Run the heed3 examples (ubuntu-latest)	26s
Check all the features of the heed3 project (macos-latest)	22s
Run the heed examples (ubuntu-latest)	23s
Run the heed3 examples (macos-latest)	25s
Run the heed examples (macos-latest)	26s
Ensure clippy is happy on heed and heed3	15s
Test the heed project (ubuntu-latest)	30s
Test the heed project (windows-latest)	2m 44s
Check the heed3 project (ubuntu-latest)	15s
Test the heed project (macos-latest)	35s
Check the heed3 project (windows-latest)	57s
Ensure the heed and heed3 project are formatted	11s
Check the heed3 project (macos-latest)	21s
Ensure heed3 is not erasing heed	4s
Check all the features of the heed project (ubuntu-latest)	14s
Check all the features of the heed project (macos-latest)	1s
	12m 57s

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