error: unnecessary use of `to_vec`
   --> libecvrf/src/hash.rs:156:38
    |
156 |             rv = new_candidate_point(&rv.x.b32().to_vec());
    |                                      ^^^^^^^^^^^^^^^^^^^^ help: use: `rv.x.b32().as_ref()`
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_to_owned
note: the lint level is defined here
   --> libecvrf/src/lib.rs:5:5
    |
5   |     warnings,
    |     ^^^^^^^^
    = note: `#[deny(clippy::unnecessary_to_owned)]` implied by `#[deny(warnings)]`