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error[E0276]: impl has stricter requirements than trait
--> $DIR/return-dont-satisfy-bounds.rs:8:16
|
LL | fn foo<F2>(self) -> impl Foo<T>;
| -------------------------------- definition of `foo` from trait
...
LL | fn foo<F2: Foo<u8>>(self) -> impl Foo<u8> {
| ^^^^^^^ impl has extra requirement `F2: Foo<u8>`
error[E0277]: the trait bound `impl Foo<u8>: Foo<char>` is not satisfied
--> $DIR/return-dont-satisfy-bounds.rs:8:34
|
LL | fn foo<F2: Foo<u8>>(self) -> impl Foo<u8> {
| ^^^^^^^^^^^^ the trait `Foo<char>` is not implemented for `impl Foo<u8>`
|
= help: the trait `Foo<char>` is implemented for `Bar`
note: required by a bound in `Foo::{synthetic#0}`
--> $DIR/return-dont-satisfy-bounds.rs:2:30
|
LL | fn foo<F2>(self) -> impl Foo<T>;
| ^^^^^^ required by this bound in `Foo::{synthetic#0}`
error[E0277]: the trait bound `Bar: Foo<u8>` is not satisfied
--> $DIR/return-dont-satisfy-bounds.rs:8:34
|
LL | fn foo<F2: Foo<u8>>(self) -> impl Foo<u8> {
| ^^^^^^^^^^^^ the trait `Foo<u8>` is not implemented for `Bar`
...
LL | self
| ---- return type was inferred to be `Bar` here
|
= help: the trait `Foo<u8>` is not implemented for `Bar`
but trait `Foo<char>` is implemented for it
= help: for that trait implementation, expected `char`, found `u8`
error: aborting due to 3 previous errors
Some errors have detailed explanations: E0276, E0277.
For more information about an error, try `rustc --explain E0276`.
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