Benchmarking tool using cost estimator #801

Job	Run time
Bitrot check	1m 51s
Intra-doc links	1m 27s
Test on ubuntu-latest with basic features	6m 47s
Test on windows-latest with basic features	8m 33s
Test on macOS-latest with basic features	11m 6s
Rustfmt	15s
Build target wasm32-unknown-unknown	1m 35s
Test on ubuntu-latest with all features	8m 25s
Build target wasm32-wasi	1m 33s
Test on windows-latest with all features	10m 44s
Test on macOS-latest with all features	9m 22s
	1h 1m 38s

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