5b54286640
Remove the "which is required by `{root_obligation}`" post-script in
"the trait `X` is not implemented for `Y`" explanation in E0277. This
information is already conveyed in the notes explaining requirements,
making it redundant while making the text (particularly in labels)
harder to read.
```
error[E0277]: the trait bound `NotCopy: Copy` is not satisfied
--> $DIR/wf-static-type.rs:10:13
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LL | static FOO: IsCopy<Option<NotCopy>> = IsCopy { t: None };
| ^^^^^^^^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `NotCopy`
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= note: required for `Option<NotCopy>` to implement `Copy`
note: required by a bound in `IsCopy`
--> $DIR/wf-static-type.rs:7:17
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LL | struct IsCopy<T:Copy> { t: T }
| ^^^^ required by this bound in `IsCopy`
```
vs the prior
```
error[E0277]: the trait bound `NotCopy: Copy` is not satisfied
--> $DIR/wf-static-type.rs:10:13
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LL | static FOO: IsCopy<Option<NotCopy>> = IsCopy { t: None };
| ^^^^^^^^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `NotCopy`, which is required by `Option<NotCopy>: Copy`
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= note: required for `Option<NotCopy>` to implement `Copy`
note: required by a bound in `IsCopy`
--> $DIR/wf-static-type.rs:7:17
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LL | struct IsCopy<T:Copy> { t: T }
| ^^^^ required by this bound in `IsCopy`
```
147 lines
5.5 KiB
Text
147 lines
5.5 KiB
Text
error[E0277]: the trait bound `F: MyFn<i32>` is not satisfied
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--> $DIR/false-positive-predicate-entailment-error.rs:36:5
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LL | / fn autobatch<F>(self) -> impl Trait
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LL | |
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LL | |
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LL | |
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... |
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LL | | where
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LL | | F: Callback<Self::CallbackArg>,
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| |_______________________________________^ the trait `MyFn<i32>` is not implemented for `F`
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note: required for `F` to implement `Callback<i32>`
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--> $DIR/false-positive-predicate-entailment-error.rs:14:21
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LL | impl<A, F: MyFn<A>> Callback<A> for F {
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| ------- ^^^^^^^^^^^ ^
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| |
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| unsatisfied trait bound introduced here
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help: consider further restricting this bound
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LL | F: Callback<Self::CallbackArg> + MyFn<i32>,
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| +++++++++++
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error[E0277]: the trait bound `F: MyFn<i32>` is not satisfied
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--> $DIR/false-positive-predicate-entailment-error.rs:36:30
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LL | fn autobatch<F>(self) -> impl Trait
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| ^^^^^^^^^^ the trait `MyFn<i32>` is not implemented for `F`
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note: required for `F` to implement `Callback<i32>`
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--> $DIR/false-positive-predicate-entailment-error.rs:14:21
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LL | impl<A, F: MyFn<A>> Callback<A> for F {
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| ------- ^^^^^^^^^^^ ^
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| |
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| unsatisfied trait bound introduced here
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note: required by a bound in `<Sender as ChannelSender>::autobatch`
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--> $DIR/false-positive-predicate-entailment-error.rs:43:12
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LL | fn autobatch<F>(self) -> impl Trait
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| --------- required by a bound in this associated function
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...
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LL | F: Callback<Self::CallbackArg>,
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `<Sender as ChannelSender>::autobatch`
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help: consider further restricting this bound
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LL | F: Callback<Self::CallbackArg> + MyFn<i32>,
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| +++++++++++
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error[E0277]: the trait bound `F: MyFn<i32>` is not satisfied
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--> $DIR/false-positive-predicate-entailment-error.rs:36:5
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LL | / fn autobatch<F>(self) -> impl Trait
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LL | |
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LL | |
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LL | |
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... |
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LL | | where
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LL | | F: Callback<Self::CallbackArg>,
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| |_______________________________________^ the trait `MyFn<i32>` is not implemented for `F`
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note: required for `F` to implement `Callback<i32>`
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--> $DIR/false-positive-predicate-entailment-error.rs:14:21
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LL | impl<A, F: MyFn<A>> Callback<A> for F {
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| ------- ^^^^^^^^^^^ ^
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| unsatisfied trait bound introduced here
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= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
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help: consider further restricting this bound
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LL | F: Callback<Self::CallbackArg> + MyFn<i32>,
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| +++++++++++
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error[E0277]: the trait bound `F: MyFn<i32>` is not satisfied
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--> $DIR/false-positive-predicate-entailment-error.rs:36:30
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LL | fn autobatch<F>(self) -> impl Trait
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| ^^^^^^^^^^ the trait `MyFn<i32>` is not implemented for `F`
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note: required for `F` to implement `Callback<i32>`
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--> $DIR/false-positive-predicate-entailment-error.rs:14:21
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LL | impl<A, F: MyFn<A>> Callback<A> for F {
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| ------- ^^^^^^^^^^^ ^
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| |
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| unsatisfied trait bound introduced here
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error[E0277]: the trait bound `F: Callback<i32>` is not satisfied
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--> $DIR/false-positive-predicate-entailment-error.rs:27:12
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LL | F: Callback<Self::CallbackArg>;
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `MyFn<i32>` is not implemented for `F`
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note: required for `F` to implement `Callback<i32>`
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--> $DIR/false-positive-predicate-entailment-error.rs:14:21
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LL | impl<A, F: MyFn<A>> Callback<A> for F {
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| ------- ^^^^^^^^^^^ ^
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| |
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| unsatisfied trait bound introduced here
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error[E0277]: the trait bound `F: MyFn<i32>` is not satisfied
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--> $DIR/false-positive-predicate-entailment-error.rs:36:5
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LL | / fn autobatch<F>(self) -> impl Trait
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LL | |
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LL | |
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LL | |
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... |
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LL | | where
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LL | | F: Callback<Self::CallbackArg>,
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| |_______________________________________^ the trait `MyFn<i32>` is not implemented for `F`
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note: required for `F` to implement `Callback<i32>`
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--> $DIR/false-positive-predicate-entailment-error.rs:14:21
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LL | impl<A, F: MyFn<A>> Callback<A> for F {
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| ------- ^^^^^^^^^^^ ^
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| unsatisfied trait bound introduced here
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= note: duplicate diagnostic emitted due to `-Z deduplicate-diagnostics=no`
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help: consider further restricting this bound
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LL | F: Callback<Self::CallbackArg> + MyFn<i32>,
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| +++++++++++
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error[E0277]: the trait bound `F: MyFn<i32>` is not satisfied
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--> $DIR/false-positive-predicate-entailment-error.rs:43:12
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LL | F: Callback<Self::CallbackArg>,
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `MyFn<i32>` is not implemented for `F`
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note: required by a bound in `Callback`
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--> $DIR/false-positive-predicate-entailment-error.rs:10:20
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LL | trait Callback<A>: MyFn<A, Output = Self::Ret> {
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^ required by this bound in `Callback`
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help: consider further restricting this bound
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LL | F: Callback<Self::CallbackArg> + MyFn<i32>,
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| +++++++++++
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error: aborting due to 7 previous errors
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For more information about this error, try `rustc --explain E0277`.
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