warning: variable `allX` should have a snake case name such as `all_x`
  --> /in/foo.rs:10:9
   |
10 |     let mut allX = Vec::new();
   |         ^^^^^^^^
   |
   = note: #[warn(non_snake_case)] on by default

warning: variable `allY` should have a snake case name such as `all_y`
  --> /in/foo.rs:11:9
   |
11 |     let mut allY = Vec::new();
   |         ^^^^^^^^