error: `extern` block uses type `Qux`, which is not FFI-safe | |
--> $DIR/lint-ctypes-73251-1.rs:23:21 | |
| | |
LL | fn lint_me() -> <u32 as Foo>::Assoc; | |
| ^^^^^^^^^^^^^^^^^^^ not FFI-safe | |
| | |
= note: opaque types have no C equivalent | |
note: the lint level is defined here | |
--> $DIR/lint-ctypes-73251-1.rs:2:9 | |
| | |
LL | #![deny(improper_ctypes)] | |
| ^^^^^^^^^^^^^^^ | |
error: aborting due to 1 previous error | |