Also sprach Nicholas Nethercote:
> - Set the environment variable `CARGO_BUILD_PIPELINING=true`.
And if you want to include it in your mozconfig I imagine you likely
have to do something like this:
mk_add_options 'export CARGO_BUILD_PIPELINING=true'
_
Hi,
The Rust compiler and cargo have a very new feature called "pipelining".
This feature increases the amount of parallelism available when building a
multi-crate Rust project by overlapping the compilation of dependent crates.
For more details on how it works, and lots of measurements, see this
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