Rust

Add from_box_bytes and box_bytes_of with BoxBytes type #467

Job	Run time
Test on i686-unknown-linux-gnu with cross	1m 48s
Test with -Zsanitizer=address	1m 43s
Test Rust 1.34.0 on ubuntu-latest	3m 4s
Test with miri	1m 21s
Test Rust stable on ubuntu-latest	26s
Test with -Zsanitizer=memory	1m 27s
Test with -Zsanitizer=leak	1m 15s
Test Rust beta on ubuntu-latest	20s
Test Rust nightly on ubuntu-latest	35s
Test Rust stable on macos-latest	36s
Test Rust stable on windows-latest	48s
Test Rust stable-x86_64-gnu on windows-latest	57s
Test Rust stable-i686-msvc on windows-latest	50s
Test Rust stable-i686-gnu on windows-latest	1m 0s
	16m 10s

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