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rustc-cfg

JSON →
library 0.5.0 ·rust
✓ verified Jun 17, 2026
build-toolutility

Runs `rustc --print cfg` and parses the output.

Resources

docsdocs.rs/rustc-cfg/ ↗
githubgithub.com/japaric/rustc-cfg ↗

API endpoints

full doc /v1/registry/rustc-cfg
install /v1/registry/rustc-cfg/install