Emitting metadata early makes building/checking Rust up to twice as fast

Automated excerpt

Start dependent crates before their dependencies finish type-checking. function bodies included, before it starts. Each cargo check: dependents run to completion on early metadata. then wait for the dependency's full metadata before generating code. It passes when every nothing. -c build sweeps cargo build, -r the release profile, and -t the parallel front end (-Zthreads=8). scripts/bench. sh -n 5 [-c build] path/to/project ... and prints the medians.

Selected automatically from source text; not independently written or fact-checked. Read the original for full context.