Snippets for ncspot 1.4.0 from Nix aarch64-darwin

Sourced from https://hydra.nixos.org/log/5sb59g7sppkz6khpb2syagnm0rfbfahy-ncspot-1.4.0.drv.

• warning: variable does not need to be mutable
     --> src/application.rs:118:13
      |
  118 |         let mut spotify =
      |             ----^^^^^^^
      |             |
      |             help: remove this `mut`
      |
      = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default