text: Interesting #rust2024 changes...
  
  https://doc.rust-lang.org/nightly/edition-guide/rust-2024/newly-unsafe-functions.html
  https://doc.rust-lang.org/nightly/std/env/fn.set_var.html#safety
  https://doc.rust-lang.org/nightly/std/os/unix/process/trait.CommandExt.html#notes-and-safety