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+error[E0670]: `async fn` is not permitted in Rust 2015
+ --> $DIR/edition-deny-async-fns-2015.rs:3:1
+ |
+LL | async fn foo() {}
+ | ^^^^^ to use `async fn`, switch to Rust 2018 or later
+ |
+ = help: pass `--edition 2021` to `rustc`
+ = note: for more on editions, read https://doc.rust-lang.org/edition-guide
+
+error[E0670]: `async fn` is not permitted in Rust 2015
+ --> $DIR/edition-deny-async-fns-2015.rs:5:12
+ |
+LL | fn baz() { async fn foo() {} }
+ | ^^^^^ to use `async fn`, switch to Rust 2018 or later
+ |
+ = help: pass `--edition 2021` to `rustc`
+ = note: for more on editions, read https://doc.rust-lang.org/edition-guide
+
+error[E0670]: `async fn` is not permitted in Rust 2015
+ --> $DIR/edition-deny-async-fns-2015.rs:7:1
+ |
+LL | async fn async_baz() {
+ | ^^^^^ to use `async fn`, switch to Rust 2018 or later
+ |
+ = help: pass `--edition 2021` to `rustc`
+ = note: for more on editions, read https://doc.rust-lang.org/edition-guide
+
+error[E0670]: `async fn` is not permitted in Rust 2015
+ --> $DIR/edition-deny-async-fns-2015.rs:8:5
+ |
+LL | async fn bar() {}
+ | ^^^^^ to use `async fn`, switch to Rust 2018 or later
+ |
+ = help: pass `--edition 2021` to `rustc`
+ = note: for more on editions, read https://doc.rust-lang.org/edition-guide
+
+error[E0670]: `async fn` is not permitted in Rust 2015
+ --> $DIR/edition-deny-async-fns-2015.rs:14:5
+ |
+LL | async fn foo() {}
+ | ^^^^^ to use `async fn`, switch to Rust 2018 or later
+ |
+ = help: pass `--edition 2021` to `rustc`
+ = note: for more on editions, read https://doc.rust-lang.org/edition-guide
+
+error[E0670]: `async fn` is not permitted in Rust 2015
+ --> $DIR/edition-deny-async-fns-2015.rs:18:5
+ |
+LL | async fn foo() {}
+ | ^^^^^ to use `async fn`, switch to Rust 2018 or later
+ |
+ = help: pass `--edition 2021` to `rustc`
+ = note: for more on editions, read https://doc.rust-lang.org/edition-guide
+
+error[E0670]: `async fn` is not permitted in Rust 2015
+ --> $DIR/edition-deny-async-fns-2015.rs:36:9
+ |
+LL | async fn bar() {}
+ | ^^^^^ to use `async fn`, switch to Rust 2018 or later
+ |
+ = help: pass `--edition 2021` to `rustc`
+ = note: for more on editions, read https://doc.rust-lang.org/edition-guide
+
+error[E0670]: `async fn` is not permitted in Rust 2015
+ --> $DIR/edition-deny-async-fns-2015.rs:26:9
+ |
+LL | async fn foo() {}
+ | ^^^^^ to use `async fn`, switch to Rust 2018 or later
+ |
+ = help: pass `--edition 2021` to `rustc`
+ = note: for more on editions, read https://doc.rust-lang.org/edition-guide
+
+error[E0670]: `async fn` is not permitted in Rust 2015
+ --> $DIR/edition-deny-async-fns-2015.rs:31:13
+ |
+LL | async fn bar() {}
+ | ^^^^^ to use `async fn`, switch to Rust 2018 or later
+ |
+ = help: pass `--edition 2021` to `rustc`
+ = note: for more on editions, read https://doc.rust-lang.org/edition-guide
+
+error[E0706]: functions in traits cannot be declared `async`
+ --> $DIR/edition-deny-async-fns-2015.rs:18:5
+ |
+LL | async fn foo() {}
+ | -----^^^^^^^^^^^^
+ | |
+ | `async` because of this
+ |
+ = note: `async` trait functions are not currently supported
+ = note: consider using the `async-trait` crate: https://crates.io/crates/async-trait
+
+error: aborting due to 10 previous errors
+
+Some errors have detailed explanations: E0670, E0706.
+For more information about an error, try `rustc --explain E0670`.