I tried this code:

use std::process:Command;
use std::fs:File;

fn main() { }

I expected to see this happen: I expected to see two diagnostic messages, telling me about the distinct parse errors on lines 1 and 2.

Instead, this happened: The first error was treated as non-recoverable, yielding this output (playground):

error: expected one of `::`, `;`, or `as`, found `:`
 --> src/main.rs:1:17
  |
1 | [use std::process:Command;](https://play.rust-lang.org/#)
  |                 ^ expected one of `::`, `;`, or `as`

error: could not compile `playground` due to previous error

I'm assuming recovering in the face of this parse error would be a relatively simple task, given that there is already the : present that should be a strong hint that someone meant to type ::. So I'm tagging this with labels indicating that its a good opportunity for someone who wants to acquaint themselves with the code base.