It's used only as a dev dependency in 6 crates.

Depender (with downloads and own rev deps) conrod_example_shared version
700 1 conrod_wgpu dev ^0.76
110 9 conrod_glium dev ^0.76
110 conrod_vulkano dev ^0.76
conrod_piston dev ^0.76
conrod_gfx dev ^0.76
conrod_rendy dev ^0.76