//@ aux-build:coherence_copy_like_lib.rs // Test that we are able to introduce a negative constraint that // `MyType: !MyTrait` along with other "fundamental" wrappers. extern crate coherence_copy_like_lib as lib; struct MyType { x: i32 } trait MyTrait { fn foo() {} } impl MyTrait for T { } // `MyStruct` is not declared fundamental, therefore this would // require that // // MyStruct: !MyTrait // // which we cannot approve. impl MyTrait for lib::MyStruct { } //~^ ERROR E0119 fn main() { }