Use more custom traits. #1642

Job	Run time
Check Cross-Compilation on Rust nightly (nightly)	1m 23s
Check Cross-Compilation (stable)	1m 2s
Check Cross-Compilation on Rust nightly on Windows (nightly)	1m 49s
Check Cross-Compilation on Windows (stable)	2m 45s
Check Cross-Compilation (beta)	1m 9s
Check Cross-Compilation on Windows (beta)	1m 27s
Fuzz Targets	47s
Rustfmt	7s
Test (stable)	23s
Test linux-raw support (ubuntu)	31s
Test (msrv)	2m 8s
Test (windows-latest)	45s
Test on Musl (ubuntu)	38s
Test linux-raw support (ubuntu-20.04)	28s
Test (windows-2019)	46s
Test (macos-latest)	39s
Test with Rust nightly (ubuntu)	31s
Test (macos-11)	39s
Test with Rust nightly (windows)	1m 40s
Test (beta)	31s
Test (ubuntu-20.04)	25s
Test (aarch64-ubuntu)	59s
	21m 32s

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