52 lines
2.7 KiB
Plaintext
52 lines
2.7 KiB
Plaintext
error[E0277]: `Option<{integer}>` doesn't implement `std::fmt::Display`
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--> $DIR/format-args-argument-span.rs:13:21
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LL | println!("{x:?} {x} {x:?}");
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| ^^^ `Option<{integer}>` cannot be formatted with the default formatter
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= help: the trait `std::fmt::Display` is not implemented for `Option<{integer}>`
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= note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
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= note: this error originates in the macro `$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]: `Option<{integer}>` doesn't implement `std::fmt::Display`
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--> $DIR/format-args-argument-span.rs:15:37
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LL | println!("{x:?} {x} {x:?}", x = Some(1));
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| ^^^^^^^ `Option<{integer}>` cannot be formatted with the default formatter
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= help: the trait `std::fmt::Display` is not implemented for `Option<{integer}>`
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= note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead
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= note: this error originates in the macro `$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]: `DisplayOnly` doesn't implement `Debug`
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--> $DIR/format-args-argument-span.rs:18:19
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LL | println!("{x} {x:?} {x}");
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| ^^^^^ `DisplayOnly` cannot be formatted using `{:?}`
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= help: the trait `Debug` is not implemented for `DisplayOnly`
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= note: add `#[derive(Debug)]` to `DisplayOnly` or manually `impl Debug for DisplayOnly`
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= note: this error originates in the macro `$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 `DisplayOnly` with `#[derive(Debug)]`
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LL | #[derive(Debug)]
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error[E0277]: `DisplayOnly` doesn't implement `Debug`
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--> $DIR/format-args-argument-span.rs:20:35
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LL | println!("{x} {x:?} {x}", x = DisplayOnly);
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| ^^^^^^^^^^^ `DisplayOnly` cannot be formatted using `{:?}`
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= help: the trait `Debug` is not implemented for `DisplayOnly`
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= note: add `#[derive(Debug)]` to `DisplayOnly` or manually `impl Debug for DisplayOnly`
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= note: this error originates in the macro `$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 `DisplayOnly` with `#[derive(Debug)]`
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LL | #[derive(Debug)]
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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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