warning: unexpected `cfg` condition name: `widnows`
  --> $DIR/unexpected-cfg-name.rs:7:7
   |
LL | #[cfg(widnows)]
   |       ^^^^^^^ help: there is a config with a similar name: `windows`
   |
   = help: to expect this configuration use `--check-cfg=cfg(widnows)`
   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg.html> for more information about checking conditional configuration
   = note: `#[warn(unexpected_cfgs)]` on by default

warning: 1 warning emitted