Filename is used at run time in 2 crates (of which 1 optionally). It's used only as a dev dependency in 2 crates.

Depender (with downloads and own rev deps) Filename version
650 4 mzdata optional ^0.1.1
htn_planner ^0.1.1
rnd-cli dev ^0.1.1
rust-thrift-tls dev ^0.1