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When encountering an unmet trait bound, point at local type that doesn't implement the trait: ``` error[E0277]: the trait bound `Bar<T>: Foo` is not satisfied --> $DIR/issue-64855.rs:9:19 | LL | pub struct Bar<T>(<Self as Foo>::Type) where Self: ; | ^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound | help: the trait `Foo` is not implemented for `Bar<T>` --> $DIR/issue-64855.rs:9:1 | LL | pub struct Bar<T>(<Self as Foo>::Type) where Self: ; | ^^^^^^^^^^^^^^^^^ ```
60 lines
2.7 KiB
Plaintext
60 lines
2.7 KiB
Plaintext
error[E0277]: `Foo` doesn't implement `Debug`
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--> $DIR/no-debug.rs:10:27
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LL | println!("{:?} {:?}", Foo, Bar);
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| ---- ^^^ `Foo` cannot be formatted using `{:?}` because it doesn't implement `Debug`
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| required by this formatting parameter
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= help: the trait `Debug` is not implemented for `Foo`
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= note: add `#[derive(Debug)]` to `Foo` or manually `impl Debug for Foo`
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= note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
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help: consider annotating `Foo` with `#[derive(Debug)]`
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LL + #[derive(Debug)]
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LL | struct Foo;
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error[E0277]: `Bar` doesn't implement `Debug`
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--> $DIR/no-debug.rs:10:32
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LL | println!("{:?} {:?}", Foo, Bar);
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| ---- ^^^ `Bar` cannot be formatted using `{:?}` because it doesn't implement `Debug`
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| required by this formatting parameter
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= help: the trait `Debug` is not implemented for `Bar`
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= note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
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error[E0277]: `Foo` doesn't implement `std::fmt::Display`
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--> $DIR/no-debug.rs:11:23
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LL | println!("{} {}", Foo, Bar);
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| -- ^^^ `Foo` cannot be formatted with the default formatter
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| required by this formatting parameter
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help: the trait `std::fmt::Display` is not implemented for `Foo`
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--> $DIR/no-debug.rs:7:1
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LL | struct Foo;
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| ^^^^^^^^^^
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= note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
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= note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
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error[E0277]: `Bar` doesn't implement `std::fmt::Display`
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--> $DIR/no-debug.rs:11:28
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LL | println!("{} {}", Foo, Bar);
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| -- ^^^ `Bar` cannot be formatted with the default formatter
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| required by this formatting parameter
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= help: the trait `std::fmt::Display` is not implemented for `Bar`
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= note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
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= note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
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error: aborting due to 4 previous errors
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For more information about this error, try `rustc --explain E0277`.
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