120 lines
4.6 KiB
Plaintext
120 lines
4.6 KiB
Plaintext
error: `CoercePointee` can only be derived on `struct`s with `#[repr(transparent)]`
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--> $DIR/deriving-coerce-pointee-neg.rs:6:10
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LL | #[derive(CoercePointee)]
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| ^^^^^^^^^^^^^
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= note: this error originates in the derive macro `CoercePointee` (in Nightly builds, run with -Z macro-backtrace for more info)
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error: `CoercePointee` can only be derived on `struct`s with at least one field
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--> $DIR/deriving-coerce-pointee-neg.rs:12:10
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LL | #[derive(CoercePointee)]
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| ^^^^^^^^^^^^^
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= note: this error originates in the derive macro `CoercePointee` (in Nightly builds, run with -Z macro-backtrace for more info)
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error: `CoercePointee` can only be derived on `struct`s with at least one field
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--> $DIR/deriving-coerce-pointee-neg.rs:19:10
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LL | #[derive(CoercePointee)]
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| ^^^^^^^^^^^^^
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= note: this error originates in the derive macro `CoercePointee` (in Nightly builds, run with -Z macro-backtrace for more info)
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error: `CoercePointee` can only be derived on `struct`s that are generic over at least one type
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--> $DIR/deriving-coerce-pointee-neg.rs:26:10
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LL | #[derive(CoercePointee)]
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| ^^^^^^^^^^^^^
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= note: this error originates in the derive macro `CoercePointee` (in Nightly builds, run with -Z macro-backtrace for more info)
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error: exactly one generic type parameter must be marked as #[pointee] to derive CoercePointee traits
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--> $DIR/deriving-coerce-pointee-neg.rs:31:10
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LL | #[derive(CoercePointee)]
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| ^^^^^^^^^^^^^
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= note: this error originates in the derive macro `CoercePointee` (in Nightly builds, run with -Z macro-backtrace for more info)
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error: only one type parameter can be marked as `#[pointee]` when deriving CoercePointee traits
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--> $DIR/deriving-coerce-pointee-neg.rs:40:39
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LL | struct TooManyPointees<'a, #[pointee] A: ?Sized, #[pointee] B: ?Sized>((&'a A, &'a B));
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| ^ ^
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error: `CoercePointee` can only be derived on `struct`s with `#[repr(transparent)]`
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--> $DIR/deriving-coerce-pointee-neg.rs:43:10
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LL | #[derive(CoercePointee)]
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| ^^^^^^^^^^^^^
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= note: this error originates in the derive macro `CoercePointee` (in Nightly builds, run with -Z macro-backtrace for more info)
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error: `derive(CoercePointee)` requires T to be marked `?Sized`
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--> $DIR/deriving-coerce-pointee-neg.rs:51:36
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LL | struct NoMaybeSized<'a, #[pointee] T> {
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| ^
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error: the `#[pointee]` attribute may only be used on generic parameters
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--> $DIR/deriving-coerce-pointee-neg.rs:59:5
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LL | #[pointee]
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| ^^^^^^^^^^
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error: the `#[pointee]` attribute may only be used on generic parameters
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--> $DIR/deriving-coerce-pointee-neg.rs:69:33
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LL | struct UhOh<#[pointee] T>(T);
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| ^^^^^^^^^^
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error: the `#[pointee]` attribute may only be used on generic parameters
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--> $DIR/deriving-coerce-pointee-neg.rs:83:21
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LL | struct UhOh<#[pointee] T>(T);
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| ^^^^^^^^^^
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error: the `#[pointee]` attribute may only be used on generic parameters
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--> $DIR/deriving-coerce-pointee-neg.rs:98:25
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LL | struct UhOh<#[pointee] T>(T);
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| ^^^^^^^^^^
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error[E0392]: lifetime parameter `'a` is never used
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--> $DIR/deriving-coerce-pointee-neg.rs:15:16
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LL | struct NoField<'a, #[pointee] T: ?Sized> {}
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| ^^ unused lifetime parameter
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= help: consider removing `'a`, referring to it in a field, or using a marker such as `PhantomData`
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error[E0392]: type parameter `T` is never used
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--> $DIR/deriving-coerce-pointee-neg.rs:15:31
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LL | struct NoField<'a, #[pointee] T: ?Sized> {}
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| ^ unused type parameter
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= help: consider removing `T`, referring to it in a field, or using a marker such as `PhantomData`
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error[E0392]: lifetime parameter `'a` is never used
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--> $DIR/deriving-coerce-pointee-neg.rs:22:20
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LL | struct NoFieldUnit<'a, #[pointee] T: ?Sized>();
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| ^^ unused lifetime parameter
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= help: consider removing `'a`, referring to it in a field, or using a marker such as `PhantomData`
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error[E0392]: type parameter `T` is never used
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--> $DIR/deriving-coerce-pointee-neg.rs:22:35
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LL | struct NoFieldUnit<'a, #[pointee] T: ?Sized>();
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| ^ unused type parameter
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= help: consider removing `T`, referring to it in a field, or using a marker such as `PhantomData`
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error: aborting due to 16 previous errors
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For more information about this error, try `rustc --explain E0392`.
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