error: `C` is object-safe and has multiple supertraits | |
--> $DIR/multiple_supertrait_upcastable.rs:7:1 | |
| | |
LL | trait C: A + B {} | |
| ^^^^^^^^^^^^^^ | |
| | |
note: the lint level is defined here | |
--> $DIR/multiple_supertrait_upcastable.rs:2:9 | |
| | |
LL | #![deny(multiple_supertrait_upcastable)] | |
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | |
error: aborting due to previous error | |