error: useless use of `vec!`
  --> tests/ui/useless_vec.rs:8:26
   |
LL |       let _some_variable = vec![
   |  __________________________^
LL | |
LL | |         1, 2, // i'm here to stay
LL | |         3, 4, // but this one going away ;-;
LL | |     ]; // that is life anyways
   | |_____^
   |
   = note: `-D clippy::useless-vec` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(clippy::useless_vec)]`
help: you can use an array directly
   |
LL ~     let _some_variable = [1, 2, // i'm here to stay
LL ~         3, 4]; // that is life anyways
   |

error: aborting due to 1 previous error