Fixup predicates

Author: Jake-Shadle

.cargo/config.toml

@@ -61,7 +61,6 @@ rustflags = [
     "-Wclippy::string_add_assign",
     "-Wclippy::string_add",
     "-Wclippy::string_lit_as_bytes",
-    "-Wclippy::string_to_string",
     "-Wclippy::todo",
     "-Wclippy::trait_duplication_in_bounds",
     "-Wclippy::unimplemented",