error[E0195]: lifetime parameters or bounds on method `no_bound` do not match the trait declaration
  --> $DIR/regions-bound-missing-bound-in-impl.rs:19:16
   |
LL |     fn no_bound<'b>(self, b: Inv<'b>);
   |                ---- lifetimes in impl do not match this method in trait
...
LL |     fn no_bound<'b:'a>(self, b: Inv<'b>) {
   |                ^^^^^^^ lifetimes do not match method in trait

error[E0195]: lifetime parameters or bounds on method `has_bound` do not match the trait declaration
  --> $DIR/regions-bound-missing-bound-in-impl.rs:23:17
   |
LL |     fn has_bound<'b:'a>(self, b: Inv<'b>);
   |                 ------- lifetimes in impl do not match this method in trait
...
LL |     fn has_bound<'b>(self, b: Inv<'b>) {
   |                 ^^^^ lifetimes do not match method in trait

error[E0308]: method not compatible with trait
  --> $DIR/regions-bound-missing-bound-in-impl.rs:27:5
   |
LL |     fn wrong_bound1<'b,'c,'d:'a+'c>(self, b: Inv<'b>, c: Inv<'c>, d: Inv<'d>) {
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ lifetime mismatch
   |
   = note: expected fn pointer `fn(&'a isize, Inv<'c>, Inv<'c>, Inv<'_>)`
              found fn pointer `fn(&'a isize, Inv<'_>, Inv<'c>, Inv<'_>)`
note: the lifetime `'c` as defined on the method body at 27:24...
  --> $DIR/regions-bound-missing-bound-in-impl.rs:27:24
   |
LL |     fn wrong_bound1<'b,'c,'d:'a+'c>(self, b: Inv<'b>, c: Inv<'c>, d: Inv<'d>) {
   |                        ^^
note: ...does not necessarily outlive the lifetime `'c` as defined on the method body at 27:24
  --> $DIR/regions-bound-missing-bound-in-impl.rs:27:24
   |
LL |     fn wrong_bound1<'b,'c,'d:'a+'c>(self, b: Inv<'b>, c: Inv<'c>, d: Inv<'d>) {
   |                        ^^

error[E0195]: lifetime parameters or bounds on method `wrong_bound2` do not match the trait declaration
  --> $DIR/regions-bound-missing-bound-in-impl.rs:41:20
   |
LL |     fn wrong_bound2<'b,'c,'d:'a+'b>(self, b: Inv<'b>, c: Inv<'c>, d: Inv<'d>);
   |                    ---------------- lifetimes in impl do not match this method in trait
...
LL |     fn wrong_bound2(self, b: Inv, c: Inv, d: Inv) {
   |                    ^ lifetimes do not match method in trait

error[E0276]: impl has stricter requirements than trait
  --> $DIR/regions-bound-missing-bound-in-impl.rs:48:5
   |
LL |     fn another_bound<'x: 'a>(self, x: Inv<'x>, y: Inv<'t>);
   |     ------------------------------------------------------- definition of `another_bound` from trait
...
LL |     fn another_bound<'x: 't>(self, x: Inv<'x>, y: Inv<'t>) {
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ impl has extra requirement `'x: 't`

error: aborting due to 5 previous errors

Some errors have detailed explanations: E0195, E0276, E0308.
For more information about an error, try `rustc --explain E0195`.