allowd unused types ggid_t and uuid_t

Author: stlankes

src/unix/hermit/mod.rs

@@ -19,7 +19,9 @@
 pub type c_long = i64;
 pub type c_ulong = u64;
 
+#[allow(unused)]
 pub type uid_t = u16;
+#[allow(unused)]
 pub type gid_t = u16;
 pub type speed_t = ::c_uint;
 pub type mode_t = u32;