rust_icu_ucal is used at run time in 5 crates (of which 1 optionally, 3 directly). It's used only as a dev dependency in 1 crate.

Depender (with downloads and own rev deps) rust_icu_ucal version
210 2 rust_icu_unorm2 ^3.0.0
200 2 rust_icu_udat ^3.0.0
180 rust_icu ^3.0.0
190 1 rust_icu_umsg dev ^3.0.0