-error[E0670]: `async fn` is not permitted in the 2015 edition
+error[E0670]: `async fn` is not permitted in Rust 2015
--> $DIR/async-block-2015.rs:1:1
|
LL | async fn foo() {
- | ^^^^^ to use `async fn`, switch to Rust 2018
+ | ^^^^^ to use `async fn`, switch to Rust 2018 or later
|
= help: set `edition = "2018"` in `Cargo.toml`
= note: for more on editions, read https://doc.rust-lang.org/edition-guide
--> $DIR/async-block-2015.rs:11:9
|
LL | let y = async {
- | ----- `async` blocks are only allowed in the 2018 edition
+ | ----- `async` blocks are only allowed in Rust 2018 or later
LL | let x = 42;
| ^^^ expected identifier, found keyword
|
--> $DIR/async-block-2015.rs:19:9
|
LL | let z = async {
- | ----- `async` blocks are only allowed in the 2018 edition
+ | ----- `async` blocks are only allowed in Rust 2018 or later
LL | 42
| ^^ expected identifier
|
--> $DIR/async-block-2015.rs:7:13
|
LL | let x = async {};
- | ^^^^^ `async` blocks are only allowed in the 2018 edition
+ | ^^^^^ `async` blocks are only allowed in Rust 2018 or later
error: aborting due to 4 previous errors