The CSV package (https://crates.io/crates/csv) currently shows both of these at the same time: <img width="621" alt="screen shot 2018-02-16 at 6 23 48 am" src="https://user-images.githubusercontent.com/547158/36270959-0162310a-12e2-11e8-8836-a25a88b87e4f.png"> <img width="157" alt="screen shot 2018-02-16 at 6 23 54 am" src="https://user-images.githubusercontent.com/547158/36270960-01974da4-12e2-11e8-9ce2-d3de851ac926.png"> It seems the beta thing may be confusing crates.io to not show the correct Cargo.toml line? I'm not sure, but figured it was worth mentioning.