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`
```
123 lines
5.3 KiB
Plaintext
123 lines
5.3 KiB
Plaintext
error: coroutine cannot be sent between threads safely
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--> $DIR/parent-expression.rs:23:13
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LL | assert_send(g);
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| ^^^^^^^^^^^^^^ coroutine is not `Send`
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...
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LL | / type_combinations!(
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LL | | // OK
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LL | | copy => { #[derive(Copy, Clone, Default)] pub struct Client; };
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LL | | // NOT OK: MIR borrowck thinks that this is used after the yield, even though
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... |
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LL | | };
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LL | | );
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| |_____- in this macro invocation
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= help: within `{coroutine@$DIR/parent-expression.rs:17:34: 17:41}`, the trait `Send` is not implemented for `derived_drop::Client`
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note: coroutine is not `Send` as this value is used across a yield
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--> $DIR/parent-expression.rs:21:22
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LL | let g = #[coroutine] move || match drop($name::Client { ..$name::Client::default() }) {
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| ------------------------ has type `derived_drop::Client` which is not `Send`
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...
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LL | _ => yield,
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| ^^^^^ yield occurs here, with `$name::Client::default()` maybe used later
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...
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LL | / type_combinations!(
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LL | | // OK
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LL | | copy => { #[derive(Copy, Clone, Default)] pub struct Client; };
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LL | | // NOT OK: MIR borrowck thinks that this is used after the yield, even though
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... |
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LL | | };
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LL | | );
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| |_____- in this macro invocation
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note: required by a bound in `assert_send`
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--> $DIR/parent-expression.rs:40:19
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LL | fn assert_send<T: Send>(_thing: T) {}
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| ^^^^ required by this bound in `assert_send`
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= note: this error originates in the macro `type_combinations` (in Nightly builds, run with -Z macro-backtrace for more info)
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error: coroutine cannot be sent between threads safely
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--> $DIR/parent-expression.rs:23:13
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LL | assert_send(g);
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| ^^^^^^^^^^^^^^ coroutine is not `Send`
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...
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LL | / type_combinations!(
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LL | | // OK
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LL | | copy => { #[derive(Copy, Clone, Default)] pub struct Client; };
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LL | | // NOT OK: MIR borrowck thinks that this is used after the yield, even though
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... |
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LL | | };
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LL | | );
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| |_____- in this macro invocation
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= help: within `{coroutine@$DIR/parent-expression.rs:17:34: 17:41}`, the trait `Send` is not implemented for `significant_drop::Client`
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note: coroutine is not `Send` as this value is used across a yield
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--> $DIR/parent-expression.rs:21:22
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LL | let g = #[coroutine] move || match drop($name::Client { ..$name::Client::default() }) {
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| ------------------------ has type `significant_drop::Client` which is not `Send`
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...
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LL | _ => yield,
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| ^^^^^ yield occurs here, with `$name::Client::default()` maybe used later
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...
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LL | / type_combinations!(
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LL | | // OK
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LL | | copy => { #[derive(Copy, Clone, Default)] pub struct Client; };
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LL | | // NOT OK: MIR borrowck thinks that this is used after the yield, even though
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... |
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LL | | };
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LL | | );
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| |_____- in this macro invocation
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note: required by a bound in `assert_send`
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--> $DIR/parent-expression.rs:40:19
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LL | fn assert_send<T: Send>(_thing: T) {}
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| ^^^^ required by this bound in `assert_send`
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= note: this error originates in the macro `type_combinations` (in Nightly builds, run with -Z macro-backtrace for more info)
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error: coroutine cannot be sent between threads safely
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--> $DIR/parent-expression.rs:23:13
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LL | assert_send(g);
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| ^^^^^^^^^^^^^^ coroutine is not `Send`
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...
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LL | / type_combinations!(
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LL | | // OK
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LL | | copy => { #[derive(Copy, Clone, Default)] pub struct Client; };
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LL | | // NOT OK: MIR borrowck thinks that this is used after the yield, even though
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... |
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LL | | };
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LL | | );
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| |_____- in this macro invocation
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= help: within `{coroutine@$DIR/parent-expression.rs:17:34: 17:41}`, the trait `Send` is not implemented for `insignificant_dtor::Client`
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note: coroutine is not `Send` as this value is used across a yield
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--> $DIR/parent-expression.rs:21:22
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LL | let g = #[coroutine] move || match drop($name::Client { ..$name::Client::default() }) {
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| ------------------------ has type `insignificant_dtor::Client` which is not `Send`
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...
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LL | _ => yield,
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| ^^^^^ yield occurs here, with `$name::Client::default()` maybe used later
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...
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LL | / type_combinations!(
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LL | | // OK
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LL | | copy => { #[derive(Copy, Clone, Default)] pub struct Client; };
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LL | | // NOT OK: MIR borrowck thinks that this is used after the yield, even though
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... |
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LL | | };
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LL | | );
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| |_____- in this macro invocation
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note: required by a bound in `assert_send`
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--> $DIR/parent-expression.rs:40:19
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LL | fn assert_send<T: Send>(_thing: T) {}
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| ^^^^ required by this bound in `assert_send`
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= note: this error originates in the macro `type_combinations` (in Nightly builds, run with -Z macro-backtrace for more info)
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error: aborting due to 3 previous errors
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