Track permissions as bytes #682

Job	Run time
iOS (aarch64-apple-ios, iphoneos)	54s
iOS (x86_64-apple-ios, iphonesimulator)	53s
Test (ubuntu-20.04, stable)	3m 4s
Test (ubuntu-20.04, beta)	3m 40s
Test (ubuntu-20.04, nightly)	3m 18s
Test (macos-latest, stable)	4m 6s
Test (macos-latest, nightly)	4m 56s
Test (windows-latest, stable-x86_64-msvc)	3m 23s
Test (windows-latest, stable-i686-msvc)	3m 43s
Test (windows-latest, stable-x86_64-gnu)	4m 25s
Windows AArch64	2m 34s
Build Targets (wasm32-unknown-unknown)	24s
Build Targets (wasm32-wasi)	24s
Build Targets (x86_64-unknown-fuchsia)	25s
Build Targets (x86_64-fortanix-unknown-sgx)	23s
Build Targets (x86_64-unknown-illumos)	25s
Docker (aarch64-unknown-linux-gnu)	1m 27s
Docker (arm-unknown-linux-gnueabihf)	1m 14s
Docker (armv7-unknown-linux-gnueabihf)	1m 4s
Docker (i586-unknown-linux-gnu)	50s
Docker (i686-unknown-linux-gnu)	55s
Docker (powerpc64-unknown-linux-gnu)	1m 37s
Docker (s390x-unknown-linux-gnu)	1m 13s
Docker (x86_64-pc-windows-gnu)	54s
Docker (x86_64-unknown-linux-gnu)	41s
Docker (x86_64-unknown-linux-musl)	50s
Docker (arm-linux-androideabi)	2m 18s
Docker (armv7-linux-androideabi)	2m 12s
Docker (aarch64-linux-android)	2m 49s
Docker (i686-linux-android)	2m 15s
Docker (x86_64-linux-android)	3m 9s
Miri	5m 38s
MSRV	45s
Rustfmt	6s
	1h 6m 54s

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