JFC. When will open source projects like @rustlang learn that putting toxic people like this in positions of ANY authority is unacceptable. https://github.com/marshallpierce/rust-base64/issues/213 . He's showing you who he is, and you're not listening.
I was thinking the same thing when I was trying to use the new base64 code instead of the deprecated version: it's unnecessarily complicated. I remember thinking "why is this so hard, so convoluted?".