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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: ; | ^^^^^^^^^^^^^^^^^ ```
80 lines
2.9 KiB
Plaintext
80 lines
2.9 KiB
Plaintext
error[E0277]: the trait bound `NonImplementedStruct: NonImplementedTrait` is not satisfied in `ADecoder<'a>`
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--> $DIR/dropck-normalize-errors.rs:19:28
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LL | fn make_a_decoder<'a>() -> ADecoder<'a> {
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| ^^^^^^^^^^^^ unsatisfied trait bound
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help: within `ADecoder<'a>`, the trait `NonImplementedTrait` is not implemented for `NonImplementedStruct`
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--> $DIR/dropck-normalize-errors.rs:14:1
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LL | struct NonImplementedStruct;
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
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help: this trait has no implementations, consider adding one
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--> $DIR/dropck-normalize-errors.rs:11:1
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LL | trait NonImplementedTrait {
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| ^^^^^^^^^^^^^^^^^^^^^^^^^
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note: required because it appears within the type `BDecoder`
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--> $DIR/dropck-normalize-errors.rs:30:12
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LL | pub struct BDecoder {
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| ^^^^^^^^
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note: required because it appears within the type `ADecoder<'a>`
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--> $DIR/dropck-normalize-errors.rs:16:12
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LL | pub struct ADecoder<'a> {
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| ^^^^^^^^
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= note: the return type of a function must have a statically known size
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error[E0277]: the trait bound `NonImplementedStruct: NonImplementedTrait` is not satisfied in `BDecoder`
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--> $DIR/dropck-normalize-errors.rs:27:20
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LL | type Decoder = BDecoder;
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| ^^^^^^^^ unsatisfied trait bound
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help: within `BDecoder`, the trait `NonImplementedTrait` is not implemented for `NonImplementedStruct`
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--> $DIR/dropck-normalize-errors.rs:14:1
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LL | struct NonImplementedStruct;
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
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help: this trait has no implementations, consider adding one
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--> $DIR/dropck-normalize-errors.rs:11:1
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LL | trait NonImplementedTrait {
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| ^^^^^^^^^^^^^^^^^^^^^^^^^
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note: required because it appears within the type `BDecoder`
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--> $DIR/dropck-normalize-errors.rs:30:12
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LL | pub struct BDecoder {
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| ^^^^^^^^
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note: required by a bound in `Decode::Decoder`
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--> $DIR/dropck-normalize-errors.rs:8:5
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LL | type Decoder;
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| ^^^^^^^^^^^^^ required by this bound in `Decode::Decoder`
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help: consider relaxing the implicit `Sized` restriction
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LL | type Decoder: ?Sized;
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| ++++++++
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error[E0277]: the trait bound `NonImplementedStruct: NonImplementedTrait` is not satisfied
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--> $DIR/dropck-normalize-errors.rs:31:22
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LL | non_implemented: <NonImplementedStruct as NonImplementedTrait>::Assoc,
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound
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help: the trait `NonImplementedTrait` is not implemented for `NonImplementedStruct`
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--> $DIR/dropck-normalize-errors.rs:14:1
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LL | struct NonImplementedStruct;
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^
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help: this trait has no implementations, consider adding one
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--> $DIR/dropck-normalize-errors.rs:11:1
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LL | trait NonImplementedTrait {
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| ^^^^^^^^^^^^^^^^^^^^^^^^^
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error: aborting due to 3 previous errors
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For more information about this error, try `rustc --explain E0277`.
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