Limit nix features

This makes building the examples slightly faster.

Author: rtzoeller

Cargo.toml

@@ -40,7 +40,7 @@ tempfile = "3"
 
 [target.'cfg(target_os = "linux")'.dev-dependencies]
 inotify = { version = "0.10", default-features = false }
-nix = "0.24"
+nix = { version = "0.24", default-features = false }
 timerfd = "1"
 
 [target.'cfg(windows)'.dev-dependencies]