Use one weird trick to reduce the size of your crate by 100+ MB

No, seriously.

For reasons I have not been able to pin down, it seems like
include_str is treated differently from include_bytes. This change
reduces the sizes of the binaries libwycheproof.rlib and
libwycheproof.rmeta from 150M/69M to 88M/7.2M

src/lib.rs

@@ -162,7 +162,7 @@ macro_rules! define_test_set_names {
             pub fn json_data(&self) -> &'static str {
                 match self {
                     $(
-                        Self::$enum_name => include_str!(concat!("data/", $test_name, "_test.json")),
+                        Self::$enum_name => std::str::from_utf8(include_bytes!(concat!("data/", $test_name, "_test.json"))).expect("Invalid UTF8"),
                     )*
                 }
             }