How to Write Files in Rust

All software has to write data to the file system at some point. This is also true for programs written in Rust. Log messages need to be persisted (as long as they are not just written to stdout), and data needs to be saved for later, or else. Naturally, writing data is the opposite of reading data.

There are multiple ways to deal with writing data to files in Rust. Some of these ways are easier than others, but all…