rust/tests/ui/specialization/issue-39448.stderr
2023-01-11 19:46:45 +00:00

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warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes
--> $DIR/issue-39448.rs:1:12
|
LL | #![feature(specialization)]
| ^^^^^^^^^^^^^^
|
= note: see issue #31844 <https://github.com/rust-lang/rust/issues/31844> for more information
= help: consider using `min_specialization` instead, which is more stable and complete
= note: `#[warn(incomplete_features)]` on by default
error[E0275]: overflow evaluating the requirement `T: FromA<U>`
--> $DIR/issue-39448.rs:45:13
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LL | x.foo(y.to()).to()
| ^^
|
note: required for `T` to implement `FromA<U>`
--> $DIR/issue-39448.rs:24:29
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LL | impl<T: A, U: A + FromA<T>> FromA<T> for U {
| -------- ^^^^^^^^ ^
| |
| unsatisfied trait bound introduced here
note: required for `U` to implement `ToA<T>`
--> $DIR/issue-39448.rs:34:12
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LL | impl<T, U> ToA<U> for T
| ^^^^^^ ^
LL | where
LL | U: FromA<T>,
| -------- unsatisfied trait bound introduced here
error: aborting due to previous error; 1 warning emitted
For more information about this error, try `rustc --explain E0275`.