Rust

`i32` for `HardwareBufferFormat` #1873

Job	Run time
Check ndk-sys MSRV (1.60.0)	1m 16s
Check overall MSRV (1.66.0) (true)	1m 37s
Host-side tests (ubuntu-latest, stable)	31s
Cross-compile (ubuntu-latest, stable, armv7-linux-androideabi, armeabi-v7a)	46s
Check overall MSRV (1.66.0) (false)	1m 30s
Host-side tests (ubuntu-latest, nightly)	22s
clippy	16s
Cross-compile (ubuntu-latest, stable, aarch64-linux-android, arm64-v8a)	47s
Cross-compile (ubuntu-latest, stable, i686-linux-android, x86)	52s
Build-test docs (ubuntu-latest, stable)	18s
Cross-compile (ubuntu-latest, stable, x86_64-linux-android, x86_64)	47s
formatting	3s
Build-test docs (ubuntu-latest, nightly)	27s
Cross-compile (ubuntu-latest, nightly, armv7-linux-androideabi, armeabi-v7a)	52s
Cross-compile (ubuntu-latest, nightly, aarch64-linux-android, arm64-v8a)	55s
Cross-compile (ubuntu-latest, nightly, i686-linux-android, x86)	1m 18s
Cross-compile (ubuntu-latest, nightly, x86_64-linux-android, x86_64)	52s
Cross-compile (windows-latest, stable, aarch64-linux-android, arm64-v8a)	2m 42s
Cross-compile (windows-latest, stable, x86_64-linux-android, x86_64)	2m 42s
	18m 53s

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