warning: you should consider adding a `Default` implementation for `FpsCounter`
  --> src/io/fps_counter.rs:9:5
   |
9  | /     pub fn new() -> Self {
10 | |         Self {
11 | |             last_time: Instant::now(),
12 | |             frame_count: 0,
13 | |         }
14 | |     }
   | |_____^
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#new_without_default
   = note: `#[warn(clippy::new_without_default)]` on by default
help: try adding this
   |
8  + impl Default for FpsCounter {
9  +     fn default() -> Self {
10 +         Self::new()
11 +     }
12 + }
   |

warning: field `handle` is never read
  --> src/io/webcam.rs:92:5
   |
89 | pub struct WebcamCapture {
   |            ------------- field in this struct
...
92 |     handle: Option<std::thread::JoinHandle<()>>,
   |     ^^^^^^
   |
   = note: `#[warn(dead_code)]` on by default