core_io is used at run time in 9 crates (of which 4 optionally). It is a direct run-time dependency in 6 crates.

Depender (with downloads and own rev deps) core_io version
26K 12 fatfs optional ^0.1
8.4K 7 fscommon optional ^0.1
1 enclave ^0.1
byteorder_core_io ^0.1
1 bincode-no-std ^0.1.20180307
rad1o-firmware ^0.1