error[E0307]: invalid `self` parameter type: isize
  --> $DIR/ufcs-explicit-self-bad.rs:8:18
   |
LL |     fn foo(self: isize, x: isize) -> isize {
   |                  ^^^^^
   |
   = note: type of `self` must be `Self` or a type that dereferences to it
   = help: consider changing to `self`, `&self`, `&mut self`, `self: Box<Self>`, `self: Rc<Self>`, `self: Arc<Self>`, or `self: Pin<P>` (where P is one of the previous types except `Self`)

error[E0307]: invalid `self` parameter type: Bar<isize>
  --> $DIR/ufcs-explicit-self-bad.rs:19:18
   |
LL |     fn foo(self: Bar<isize>, x: isize) -> isize {
   |                  ^^^^^^^^^^
   |
   = note: type of `self` must be `Self` or a type that dereferences to it
   = help: consider changing to `self`, `&self`, `&mut self`, `self: Box<Self>`, `self: Rc<Self>`, `self: Arc<Self>`, or `self: Pin<P>` (where P is one of the previous types except `Self`)

error[E0307]: invalid `self` parameter type: &Bar<usize>
  --> $DIR/ufcs-explicit-self-bad.rs:23:18
   |
LL |     fn bar(self: &Bar<usize>, x: isize) -> isize {
   |                  ^^^^^^^^^^^
   |
   = note: type of `self` must be `Self` or a type that dereferences to it
   = help: consider changing to `self`, `&self`, `&mut self`, `self: Box<Self>`, `self: Rc<Self>`, `self: Arc<Self>`, or `self: Pin<P>` (where P is one of the previous types except `Self`)

error[E0308]: mismatched `self` parameter type
  --> $DIR/ufcs-explicit-self-bad.rs:37:21
   |
LL |     fn dummy2(self: &Bar<T>) {}
   |                     ^^^^^^^ lifetime mismatch
   |
   = note: expected reference `&'a Bar<T>`
              found reference `&Bar<T>`
note: the anonymous lifetime defined here...
  --> $DIR/ufcs-explicit-self-bad.rs:37:21
   |
LL |     fn dummy2(self: &Bar<T>) {}
   |                     ^^^^^^^
note: ...does not necessarily outlive the lifetime `'a` as defined here
  --> $DIR/ufcs-explicit-self-bad.rs:35:6
   |
LL | impl<'a, T> SomeTrait for &'a Bar<T> {
   |      ^^

error[E0308]: mismatched `self` parameter type
  --> $DIR/ufcs-explicit-self-bad.rs:37:21
   |
LL |     fn dummy2(self: &Bar<T>) {}
   |                     ^^^^^^^ lifetime mismatch
   |
   = note: expected reference `&'a Bar<T>`
              found reference `&Bar<T>`
note: the lifetime `'a` as defined here...
  --> $DIR/ufcs-explicit-self-bad.rs:35:6
   |
LL | impl<'a, T> SomeTrait for &'a Bar<T> {
   |      ^^
note: ...does not necessarily outlive the anonymous lifetime defined here
  --> $DIR/ufcs-explicit-self-bad.rs:37:21
   |
LL |     fn dummy2(self: &Bar<T>) {}
   |                     ^^^^^^^

error[E0308]: mismatched `self` parameter type
  --> $DIR/ufcs-explicit-self-bad.rs:40:21
   |
LL |     fn dummy3(self: &&Bar<T>) {}
   |                     ^^^^^^^^ lifetime mismatch
   |
   = note: expected reference `&'a Bar<T>`
              found reference `&Bar<T>`
note: the anonymous lifetime defined here...
  --> $DIR/ufcs-explicit-self-bad.rs:40:22
   |
LL |     fn dummy3(self: &&Bar<T>) {}
   |                      ^^^^^^^
note: ...does not necessarily outlive the lifetime `'a` as defined here
  --> $DIR/ufcs-explicit-self-bad.rs:35:6
   |
LL | impl<'a, T> SomeTrait for &'a Bar<T> {
   |      ^^

error[E0308]: mismatched `self` parameter type
  --> $DIR/ufcs-explicit-self-bad.rs:40:21
   |
LL |     fn dummy3(self: &&Bar<T>) {}
   |                     ^^^^^^^^ lifetime mismatch
   |
   = note: expected reference `&'a Bar<T>`
              found reference `&Bar<T>`
note: the lifetime `'a` as defined here...
  --> $DIR/ufcs-explicit-self-bad.rs:35:6
   |
LL | impl<'a, T> SomeTrait for &'a Bar<T> {
   |      ^^
note: ...does not necessarily outlive the anonymous lifetime defined here
  --> $DIR/ufcs-explicit-self-bad.rs:40:22
   |
LL |     fn dummy3(self: &&Bar<T>) {}
   |                      ^^^^^^^

error[E0053]: method `dummy2` has an incompatible type for trait
  --> $DIR/ufcs-explicit-self-bad.rs:37:21
   |
LL |     fn dummy2(self: &Bar<T>) {}
   |               ------^^^^^^^
   |               |     |
   |               |     expected `&'a Bar<T>`, found `Bar<T>`
   |               help: change the self-receiver type to match the trait: `&self`
   |
note: type in trait
  --> $DIR/ufcs-explicit-self-bad.rs:31:15
   |
LL |     fn dummy2(&self);
   |               ^^^^^
   = note: expected signature `fn(&&'a Bar<T>)`
              found signature `fn(&Bar<T>)`

error: aborting due to 8 previous errors

Some errors have detailed explanations: E0053, E0307, E0308.
For more information about an error, try `rustc --explain E0053`.