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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`
```
27 lines
1.3 KiB
Plaintext
27 lines
1.3 KiB
Plaintext
error[E0277]: `RefCell<isize>` cannot be shared between threads safely
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--> $DIR/issue-7364.rs:4:15
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LL | static boxed: Box<RefCell<isize>> = Box::new(RefCell::new(0));
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| ^^^^^^^^^^^^^^^^^^^ `RefCell<isize>` cannot be shared between threads safely
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= help: the trait `Sync` is not implemented for `RefCell<isize>`
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= note: if you want to do aliasing and mutation between multiple threads, use `std::sync::RwLock` instead
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= note: required for `Unique<RefCell<isize>>` to implement `Sync`
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note: required because it appears within the type `Box<RefCell<isize>>`
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--> $SRC_DIR/alloc/src/boxed.rs:LL:COL
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= note: shared static variables must have a type that implements `Sync`
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error[E0015]: cannot call non-const fn `Box::<RefCell<isize>>::new` in statics
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--> $DIR/issue-7364.rs:4:37
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LL | static boxed: Box<RefCell<isize>> = Box::new(RefCell::new(0));
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| ^^^^^^^^^^^^^^^^^^^^^^^^^
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= note: calls in statics are limited to constant functions, tuple structs and tuple variants
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= note: consider wrapping this expression in `std::sync::LazyLock::new(|| ...)`
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error: aborting due to 2 previous errors
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Some errors have detailed explanations: E0015, E0277.
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For more information about an error, try `rustc --explain E0015`.
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