Rust

Introduce `AnyTls` #496

Job	Run time
Check all the features of the heed project	38s
Test the heed3 project (ubuntu-latest)	41s
Test the heed3 project (windows-latest)	3m 40s
Test the heed3 project (macos-latest)	59s
Check all the features of the heed3 project	38s
Ensure clippy is happy on heed and heed3	24s
Check the heed3 project (ubuntu-latest)	19s
Check the heed3 project (windows-latest)	2m 2s
Run the heed examples (ubuntu-latest)	26s
Ensure the heed and heed3 project are formatted	12s
Check the heed3 project (macos-latest)	31s
Run the heed examples (macos-latest)	44s
Run the heed3 examples (ubuntu-latest)	24s
Run the heed3 examples (macos-latest)	39s
Test the heed project (ubuntu-latest)	34s
Ensure heed3 is not erasing heed	3s
Test the heed project (windows-latest)	2m 44s
Test the heed project (macos-latest)	42s
	16m 20s

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