title: Read large files line by line in Rust
body: <p>My Rust program is intented to read a very large (up to several GB), simple text file line by line. The problem is, that this file is too large to be read at once, or to transfer all lines into a <code>Vec&lt;String&gt;</code>.</p>
  
  <p>What would be an idiomatic way to handle this in Rust?</p>