Rust

Add comment on removing build script. #42

Job	Run time
Miri	49s
Rust	32s
Rust (1.60.0)	1m 13s
Rust (ubuntu-latest, x86_64, stable)	13s
Rust (1.63.0)	1m 12s
Rust (ubuntu-latest, x86_64, beta)	19s
Rust (1.66.0)	1m 8s
Rust (ubuntu-latest, x86_64, nightly)	31s
Rust (ubuntu-latest, x86_64, 1.70.0)	24s
Rust (1.69.0)	14s
Rust (ubuntu-latest, i686, stable)	9s
Rust (1.70.0)	15s
Rust (ubuntu-latest, i686, beta)	14s
Rust (ubuntu-latest, i686, nightly)	19s
Rust (ubuntu-latest, i686, 1.70.0)	17s
Rust (ubuntu-latest, aarch64, stable)	8s
Rust (ubuntu-latest, aarch64, beta)	14s
Rust (ubuntu-latest, aarch64, nightly)	14s
Rust (ubuntu-latest, aarch64, 1.70.0)	15s
Rust (windows-latest, x86_64, stable)	1m 48s
Rust (windows-latest, x86_64, beta)	54s
Rust (windows-latest, x86_64, nightly)	49s
Rust (windows-latest, x86_64, 1.70.0)	51s
Rust (windows-latest, i686, stable)	58s
Rust (windows-latest, i686, beta)	30s
Rust (windows-latest, i686, nightly)	45s
Rust (windows-latest, i686, 1.70.0)	38s
Rust (windows-latest, aarch64, stable)	1m 6s
Rust (windows-latest, aarch64, beta)	31s
Rust (windows-latest, aarch64, nightly)	38s
Rust (windows-latest, aarch64, 1.70.0)	39s
	18m 47s

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