error[E0599]: no method named `bar` found for struct `Bar<impl Sized>` in the current scope
  --> $DIR/method-resolution.rs:23:11
   |
LL | struct Bar<T>(T);
   | ------------- method `bar` not found for this struct
...
LL |         x.bar();
   |           ^^^ method not found in `Bar<impl Sized>`
   |
   = note: the method was found for
           - `Bar<u32>`

error[E0391]: cycle detected when computing type of opaque `foo::{opaque#0}`
  --> $DIR/method-resolution.rs:19:24
   |
LL | fn foo(x: bool) -> Bar<impl Sized> {
   |                        ^^^^^^^^^^
   |
note: ...which requires type-checking `foo`...
  --> $DIR/method-resolution.rs:23:9
   |
LL |         x.bar();
   |         ^
   = note: ...which requires evaluating trait selection obligation `Bar<foo::{opaque#0}>: core::marker::Unpin`...
   = note: ...which again requires computing type of opaque `foo::{opaque#0}`, completing the cycle
note: cycle used when computing type of `foo::{opaque#0}`
  --> $DIR/method-resolution.rs:19:24
   |
LL | fn foo(x: bool) -> Bar<impl Sized> {
   |                        ^^^^^^^^^^
   = note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information

error: aborting due to 2 previous errors

Some errors have detailed explanations: E0391, E0599.
For more information about an error, try `rustc --explain E0391`.