tests/ui/transmutability/malformed-program-gracefulness/feature-missing.rs - third_party/github.com/rust-lang/rust - Git at Google

 // The trait must not be available if its feature flag is absent.

 #![crate_type = "lib"]

 use std::mem::TransmuteFrom;
 //~^ ERROR use of unstable library feature `transmutability` [E0658]

 use std::mem::Assume;
 //~^ ERROR use of unstable library feature `transmutability` [E0658]
	// The trait must not be available if its feature flag is absent.

	#![crate_type = "lib"]

	use std::mem::TransmuteFrom;
	//~^ ERROR use of unstable library feature `transmutability` [E0658]

	use std::mem::Assume;
	//~^ ERROR use of unstable library feature `transmutability` [E0658]