LCOV is used at run time in 6 crates (of which 1 optionally). It's used only as a dev dependency in 1 crate.

Depender (with downloads and own rev deps) LCOV version
700 1 lcov-diff ^0.8
160 lcov-util ^0.8
lcov-diff-util ^0.8
cargo-line-test ^0.8
lcoviz ^0.8.1
git-metrics optional ^0.8.1
30K 18 cargo-tarpaulin dev ^0.8.1