rust: Fix flaw where rectangles could be drawn without changing the c… #54

Job	Run time
cross linux-x64 cpu: x86-64 target: x86_64-unknown-linux-gnu runs-on:ubuntu-20.04	5m 43s
linux-x64-ubuntu-24 cpu: x86-64 target: x86_64-unknown-linux-gnu runs-on:ubuntu-24.04	5m 36s
cross linux-arm64-ubuntu-22 cpu: generic target: aarch64-unknown-linux-gnu features: neon runs-on:ubuntu-22-arm-32gb	7m 26s
osx-x64-13 cpu: haswell target: x86_64-apple-darwin runs-on:macos-13	10m 15s
osx-arm64-14 cpu: apple-m1 target: aarch64-apple-darwin runs-on:macos-14	7m 36s
win-x64-2022 cpu: x86-64 target: x86_64-pc-windows-msvc runs-on:windows-2022	11m 36s
win-x86-2022 target: i686-pc-windows-msvc runs-on:windows-2022	12m 50s
win-arm64-11 cpu: generic target: aarch64-pc-windows-msvc runs-on:windows-11-arm-32gb	19m 53s
cross linux-musl-x64 cpu: x86-64 target: x86_64-unknown-linux-musl features: mimalloc runs-on:ubuntu-24.04	6m 6s
cross linux-musl-arm64 cpu: generic target: aarch64-unknown-linux-musl features: mimalloc runs-on:ubuntu-22-arm-32gb	8m 9s
publish	0s
	1h 35m 10s

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