trpl-zh-cn/listings/ch20-advanced-features/no-listing-02-impl-outlineprint-for-point/output.txt
2024-10-20 23:44:05 +08:00

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$ cargo run
Compiling traits-example v0.1.0 (file:///projects/traits-example)
error[E0277]: `Point` doesn't implement `std::fmt::Display`
--> src/main.rs:20:23
|
20 | impl OutlinePrint for Point {}
| ^^^^^ `Point` cannot be formatted with the default formatter
|
= help: the trait `std::fmt::Display` is not implemented for `Point`
= note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
note: required by a bound in `OutlinePrint`
--> src/main.rs:3:21
|
3 | trait OutlinePrint: fmt::Display {
| ^^^^^^^^^^^^ required by this bound in `OutlinePrint`
error[E0277]: `Point` doesn't implement `std::fmt::Display`
--> src/main.rs:24:7
|
24 | p.outline_print();
| ^^^^^^^^^^^^^ `Point` cannot be formatted with the default formatter
|
= help: the trait `std::fmt::Display` is not implemented for `Point`
= note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
note: required by a bound in `OutlinePrint::outline_print`
--> src/main.rs:3:21
|
3 | trait OutlinePrint: fmt::Display {
| ^^^^^^^^^^^^ required by this bound in `OutlinePrint::outline_print`
4 | fn outline_print(&self) {
| ------------- required by a bound in this associated function
For more information about this error, try `rustc --explain E0277`.
error: could not compile `traits-example` (bin "traits-example") due to 2 previous errors