error[E0599]: no method named `method` found for reference `&T` in the current scope
  --> $DIR/issue-21673.rs:6:7
   |
LL |     x.method()
   |       ^^^^^^ method not found in `&T`
   |
   = help: items from traits can only be used if the type parameter is bounded by the trait
help: the following trait defines an item `method`, perhaps you need to restrict type parameter `T` with it:
   |
LL | fn call_method<T: std::fmt::Debug + Foo>(x: &T) {
   |                                   +++++

error[E0599]: no method named `method` found for type parameter `T` in the current scope
  --> $DIR/issue-21673.rs:10:7
   |
LL | fn call_method_2<T>(x: T) {
   |                  - method `method` not found for this type parameter
LL |     x.method()
   |       ^^^^^^ method not found in `T`
   |
   = help: items from traits can only be used if the type parameter is bounded by the trait
help: the following trait defines an item `method`, perhaps you need to restrict type parameter `T` with it:
   |
LL | fn call_method_2<T: Foo>(x: T) {
   |                   +++++

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0599`.