test

no_std support, more minimal and less intrusive version #192

Job	Run time
Check it compiles on old Rust (1.31.0)	3m 10s
Verify benchmarks compile	1m 15s
Run the big ignored tests	1m 33s
32bit tests	57s
Clippy lints	16s
Check documentation links	9s
Miri checks	30s
Check formatting	14s
Check it compiles on old Rust (1.45.0)	9s
Build & test (ubuntu-latest, stable)	42s
Thread Sanitizer checks MacOS	42s
Build & test (ubuntu-latest, beta)	53s
Build & test (ubuntu-latest, nightly)	13s
Build & test (macos-latest, stable)	1s
Build & test (macos-latest, beta)	3m 57s
Build & test (macos-latest, nightly)	25s
Build & test (windows-latest, stable)	3m 25s
Build & test (windows-latest, beta)	2m 13s
Build & test (windows-latest, nightly)	1m 2s
	21m 46s

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