src/test/ui/impl-trait/impl-generic-mismatch.stderr

   1 error[E0643]: method `foo` has incompatible signature for trait
   2   --> $DIR/impl-generic-mismatch.rs:8:12
   3    |
   4 LL |     fn foo(&self, _: &impl Debug);
   5    |                       ---------- declaration in trait here
   6 ...
   7 LL |     fn foo<U: Debug>(&self, _: &U) { }
   8    |            ^ expected `impl Trait`, found generic parameter
   9    |
  10 help: try removing the generic parameter and using `impl Trait` instead
  11    |
  12 LL |     fn foo(&self, _: &impl Debug) { }
  13    |          --           ^^^^^^^^^^
  14
  15 error[E0643]: method `bar` has incompatible signature for trait
  16   --> $DIR/impl-generic-mismatch.rs:17:23
  17    |
  18 LL |     fn bar<U: Debug>(&self, _: &U);
  19    |            - declaration in trait here
  20 ...
  21 LL |     fn bar(&self, _: &impl Debug) { }
  22    |                       ^^^^^^^^^^ expected generic parameter, found `impl Trait`
  23    |
  24 help: try changing the `impl Trait` argument to a generic parameter
  25    |
  26 LL |     fn bar<U: Debug>(&self, _: &U) { }
  27    |           ^^^^^^^^^^            ^
  28
  29 error[E0643]: method `hash` has incompatible signature for trait
  30   --> $DIR/impl-generic-mismatch.rs:28:33
  31    |
  32 LL |     fn hash(&self, hasher: &mut impl Hasher) {}
  33    |                                 ^^^^^^^^^^^ expected generic parameter, found `impl Trait`
  34    |
  35   ::: $SRC_DIR/libcore/hash/mod.rs:LL:COL
  36    |
  37 LL |     fn hash<H: Hasher>(&self, state: &mut H);
  38    |             - declaration in trait here
  39
  40 error: aborting due to 3 previous errors
  41
  42 For more information about this error, try `rustc --explain E0643`.