[Georgelemental]

IO errors like running out of disk space would be handled by returning a `Result` type, not by panicking. Often, Rust code/libraries panic on out-of-memory errors because recovering from that isn't a priority for most application code. But if you are writing lower-level or high-reliability code and you do want to handle out-of-memory errors, the Rust standard library (and many third-party libraries) offer alternative fallible memory allocation APIs that return `Result` instead of panicking on out-of-memory.