Generating JSON rustdoc output with Cargo

JSON output for rustdoc documentation was removed in approx 2016 due to falling behind. RFC 2963 adds it back.

cargo +nightly rustdoc --lib -- --output-format json

If you have jq installed, you can grab a specific node and take a look at it.

jq '.index[] | select(.id == "24:387")' target/doc/digital_garden.json