Rust

Introduce `AnyTls` #495

Job	Run time
Check all the features of the heed3 project	36s
Check all the features of the heed project	34s
Check the heed3 project (ubuntu-latest)	29s
Ensure clippy is happy on heed and heed3	46s
Check the heed3 project (windows-latest)	2m 14s
Run the heed examples (ubuntu-latest)	26s
Check the heed3 project (macos-latest)	29s
Ensure the heed and heed3 project are formatted	15s
Run the heed examples (macos-latest)	42s
Run the heed3 examples (ubuntu-latest)	25s
Run the heed3 examples (macos-latest)	38s
Test the heed3 project (ubuntu-latest)	43s
Test the heed project (ubuntu-latest)	37s
Test the heed3 project (windows-latest)	2m 56s
Ensure heed3 is not erasing heed	3s
Test the heed3 project (macos-latest)	48s
Test the heed project (windows-latest)	2m 40s
Test the heed project (macos-latest)	38s
	15m 59s

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