Rust

Show ranges of slice in the doc #507

Job	Run time
Check all the features of the heed project	36s
Check the heed3 project (ubuntu-latest)	20s
Check all the features of the heed3 project	49s
Ensure clippy is happy on heed and heed3	31s
Check the heed3 project (windows-latest)	1m 43s
Check the heed3 project (macos-latest)	28s
Run the heed examples (ubuntu-latest)	32s
Run the heed examples (macos-latest)	45s
Ensure the heed and heed3 project are formatted	15s
Run the heed3 examples (ubuntu-latest)	23s
Test the heed3 project (ubuntu-latest)	1m 3s
Run the heed3 examples (macos-latest)	27s
Test the heed3 project (windows-latest)	3m 54s
Test the heed project (ubuntu-latest)	39s
Ensure heed3 is not erasing heed	5s
Test the heed3 project (macos-latest)	39s
Test the heed project (windows-latest)	1m 49s
Test the heed project (macos-latest)	48s
	15m 46s

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