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How long does Crater take to compile all (2792!) crates in stock on crates.io? It ought to be embarrassingly parallelizable. Is there a dashboard page showing the Crater results for rust nightlies?

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At the moment we are using 60 r3.xlarge spot instances each running a single build at a time, and as of a few weeks ago it took maybe two hours. It hasn't been optimized.

There is no web dashboard yet (the website[1] - which runs Rust! - is quite minimal), but it's coming.

[1]: https://crater.rust-lang.org/

I wonder if you can use Buck with its distributed cache to make this go way faster?

Where does the money come from to pay for these instances? Is it Mozilla?

Yes, Mozilla currently foots the bill for Rust's infrastructure. Currently there's no way to finance funding of Rust development directly, though we'd happily consider accepting donations of services from companies that provide these sort of things. :)

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