1 error[E0666]: nested `impl Trait` is not allowed
2 --> $DIR/nested_impl_trait.rs:5:56
4 LL | fn bad_in_ret_position(x: impl Into<u32>) -> impl Into<impl Debug> { x }
5 | ----------^^^^^^^^^^-
7 | | nested `impl Trait` here
10 error[E0666]: nested `impl Trait` is not allowed
11 --> $DIR/nested_impl_trait.rs:8:42
13 LL | fn bad_in_fn_syntax(x: fn() -> impl Into<impl Debug>) {}
14 | ----------^^^^^^^^^^-
16 | | nested `impl Trait` here
19 error[E0666]: nested `impl Trait` is not allowed
20 --> $DIR/nested_impl_trait.rs:12:37
22 LL | fn bad_in_arg_position(_: impl Into<impl Debug>) { }
23 | ----------^^^^^^^^^^-
25 | | nested `impl Trait` here
28 error[E0666]: nested `impl Trait` is not allowed
29 --> $DIR/nested_impl_trait.rs:17:44
31 LL | fn bad(x: impl Into<u32>) -> impl Into<impl Debug> { x }
32 | ----------^^^^^^^^^^-
34 | | nested `impl Trait` here
37 error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
38 --> $DIR/nested_impl_trait.rs:8:32
40 LL | fn bad_in_fn_syntax(x: fn() -> impl Into<impl Debug>) {}
41 | ^^^^^^^^^^^^^^^^^^^^^
43 error[E0562]: `impl Trait` not allowed outside of function and inherent method return types
44 --> $DIR/nested_impl_trait.rs:25:42
46 LL | fn allowed_in_ret_type() -> impl Fn() -> impl Into<u32> {
49 error: aborting due to 6 previous errors
51 Some errors have detailed explanations: E0562, E0666.
52 For more information about an error, try `rustc --explain E0562`.