| error: at least one trait must be specified |
| --> $DIR/issue-78720.rs:1:16 |
| | |
| LL | fn server() -> impl { |
| | ^^^^ |
| |
| error[E0412]: cannot find type `F` in this scope |
| --> $DIR/issue-78720.rs:13:12 |
| | |
| LL | _func: F, |
| | ^ |
| --> $SRC_DIR/core/src/ops/function.rs:LL:COL |
| | |
| = note: similarly named trait `Fn` defined here |
| | |
| help: a trait with a similar name exists |
| | |
| LL | _func: Fn, |
| | ~~ |
| help: you might be missing a type parameter |
| | |
| LL | struct Map2<Segment2, F> { |
| | +++ |
| |
| error[E0308]: mismatched types |
| --> $DIR/issue-78720.rs:7:39 |
| | |
| LL | fn map2<F>(self, f: F) -> Map2<F> {} |
| | ^^ expected `Map2<F>`, found `()` |
| | |
| = note: expected struct `Map2<F>` |
| found unit type `()` |
| |
| error[E0277]: the size for values of type `Self` cannot be known at compilation time |
| --> $DIR/issue-78720.rs:7:16 |
| | |
| LL | fn map2<F>(self, f: F) -> Map2<F> {} |
| | ^^^^ doesn't have a size known at compile-time |
| | |
| = help: unsized fn params are gated as an unstable feature |
| help: consider further restricting `Self` |
| | |
| LL | fn map2<F>(self, f: F) -> Map2<F> where Self: Sized {} |
| | +++++++++++++++++ |
| help: function arguments must have a statically known size, borrowed types always have a known size |
| | |
| LL | fn map2<F>(&self, f: F) -> Map2<F> {} |
| | + |
| |
| error: aborting due to 4 previous errors |
| |
| Some errors have detailed explanations: E0277, E0308, E0412. |
| For more information about an error, try `rustc --explain E0277`. |
