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error: functions cannot be both `const` and `async`
--> $DIR/no-const-async.rs:4:5
|
LL | pub const async fn x() {}
| ----^^^^^-^^^^^----------
| | |
| | `async` because of this
| `const` because of this
error[E0391]: cycle detected when computing type of `x::{opaque#0}`
--> $DIR/no-const-async.rs:4:24
|
LL | pub const async fn x() {}
| ^
|
note: ...which requires borrow-checking `x`...
--> $DIR/no-const-async.rs:4:1
|
LL | pub const async fn x() {}
| ^^^^^^^^^^^^^^^^^^^^^^
note: ...which requires processing MIR for `x`...
--> $DIR/no-const-async.rs:4:1
|
LL | pub const async fn x() {}
| ^^^^^^^^^^^^^^^^^^^^^^
note: ...which requires const checking `x`...
--> $DIR/no-const-async.rs:4:1
|
LL | pub const async fn x() {}
| ^^^^^^^^^^^^^^^^^^^^^^
= note: ...which requires computing whether `impl core::future::future::Future<Output = ()>` is freeze...
= note: ...which requires evaluating trait selection obligation `impl core::future::future::Future<Output = ()>: core::marker::Freeze`...
= note: ...which again requires computing type of `x::{opaque#0}`, completing the cycle
note: cycle used when checking item types in top-level module
--> $DIR/no-const-async.rs:4:1
|
LL | pub const async fn x() {}
| ^^^^^^^^^^^^^^^^^^^^^^^^^
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0391`.
|
