1 error[E0225]: only auto traits can be used as additional traits in a trait object
2 --> $DIR/issue-32963.rs:8:31
4 LL | size_of_copy::<dyn Misc + Copy>();
5 | ---- ^^^^ additional non-auto trait
9 = help: consider creating a new trait with all of these as supertraits and using that trait here instead: `trait NewTrait: Misc + Copy {}`
10 = note: auto-traits like `Send` and `Sync` are traits that have special properties; for more information on them, visit <https://doc.rust-lang.org/reference/special-types-and-traits.html#auto-traits>
12 error[E0277]: the trait bound `dyn Misc: Copy` is not satisfied
13 --> $DIR/issue-32963.rs:8:20
15 LL | size_of_copy::<dyn Misc + Copy>();
16 | ^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `dyn Misc`
18 note: required by a bound in `size_of_copy`
19 --> $DIR/issue-32963.rs:5:20
21 LL | fn size_of_copy<T: Copy+?Sized>() -> usize { mem::size_of::<T>() }
22 | ^^^^ required by this bound in `size_of_copy`
24 error: aborting due to 2 previous errors
26 Some errors have detailed explanations: E0225, E0277.
27 For more information about an error, try `rustc --explain E0225`.