Rust

Add Postcard Codec #136

Job	Run time
Check formatting and version dependencies	9s
Check with MSRV	18s
Clippy	20s
Build docs	21s
Check examples	32s
Test with default features	1m 39s
Check none feature without codec	6s
Test with codec bincode	1m 27s
Test rch feature	58s
Check rch feature without codec	18s
Test with codec ciborium	1m 30s
Test rfn feature	59s
Check rfn feature without codec	23s
Test with codec message-pack	1m 42s
Test robj feature	1m 16s
Check robj feature without codec	12s
Test with codec postcard	1m 18s
Check robs feature without codec	16s
Test robs feature	57s
Test rtc feature	1m 26s
Check rtc feature without codec	11s
Code coverage	2m 38s
	18m 56s

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