Crates.io Security Advisory

Found out about this when publishing through cargo:

    error: api errors (status 401 Unauthorized): The given API token does not match the format used by crates.io.

    Tokens generated before 2020-07-14 were generated with an insecure random number generator, and have been revoked. You can generate a new token at https://crates.io/me.

    For more information please see https://blog.rust-lang.org/2020/07/14/crates-io-security-advisory.html. We apologize for any inconvenience.

The code which contains the fixes: https://github.com/rust-lang/crates.io/pull/2637