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`
```
53 lines
1.8 KiB
Plaintext
53 lines
1.8 KiB
Plaintext
error: coroutine cannot be shared between threads safely
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--> $DIR/coroutine-print-verbose-2.rs:17:5
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LL | / assert_sync(#[coroutine] || {
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LL | |
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LL | | let a = NotSync;
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LL | | yield;
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LL | | drop(a);
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LL | | });
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| |______^ coroutine is not `Sync`
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= help: within `{main::{closure#0} upvar_tys=() witness={main::{closure#0}}}`, the trait `Sync` is not implemented for `NotSync`
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note: coroutine is not `Sync` as this value is used across a yield
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--> $DIR/coroutine-print-verbose-2.rs:20:9
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LL | let a = NotSync;
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| - has type `NotSync` which is not `Sync`
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LL | yield;
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| ^^^^^ yield occurs here, with `a` maybe used later
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note: required by a bound in `assert_sync`
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--> $DIR/coroutine-print-verbose-2.rs:14:23
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LL | fn assert_sync<T: Sync>(_: T) {}
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| ^^^^ required by this bound in `assert_sync`
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error: coroutine cannot be sent between threads safely
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--> $DIR/coroutine-print-verbose-2.rs:24:5
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LL | / assert_send(#[coroutine] || {
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LL | |
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LL | | let a = NotSend;
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LL | | yield;
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LL | | drop(a);
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LL | | });
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| |______^ coroutine is not `Send`
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= help: within `{main::{closure#1} upvar_tys=() witness={main::{closure#1}}}`, the trait `Send` is not implemented for `NotSend`
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note: coroutine is not `Send` as this value is used across a yield
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--> $DIR/coroutine-print-verbose-2.rs:27:9
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LL | let a = NotSend;
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| - has type `NotSend` which is not `Send`
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LL | yield;
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| ^^^^^ yield occurs here, with `a` maybe used later
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note: required by a bound in `assert_send`
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--> $DIR/coroutine-print-verbose-2.rs:15:23
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LL | fn assert_send<T: Send>(_: T) {}
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| ^^^^ required by this bound in `assert_send`
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error: aborting due to 2 previous errors
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