error: expected `{`, found keyword `let`
  --> $DIR/block-no-opening-brace.rs:9:9
   |
LL |         let x = 0;
   |         ^^^-------
   |         |
   |         expected `{`
   |         help: try placing this code inside a block: `{ let x = 0; }`

error: expected `{`, found keyword `let`
  --> $DIR/block-no-opening-brace.rs:15:9
   |
LL |         let x = 0;
   |         ^^^-------
   |         |
   |         expected `{`
   |         help: try placing this code inside a block: `{ let x = 0; }`

error: expected `{`, found keyword `let`
  --> $DIR/block-no-opening-brace.rs:20:9
   |
LL |         let x = 0;
   |         ^^^-------
   |         |
   |         expected `{`
   |         help: try placing this code inside a block: `{ let x = 0; }`

error: expected expression, found reserved keyword `try`
  --> $DIR/block-no-opening-brace.rs:24:5
   |
LL |     try
   |     ^^^ expected expression

error: expected one of `move`, `|`, or `||`, found keyword `let`
  --> $DIR/block-no-opening-brace.rs:30:9
   |
LL |     async
   |          - expected one of `move`, `|`, or `||`
LL |         let x = 0;
   |         ^^^ unexpected token

error[E0658]: async closures are unstable
  --> $DIR/block-no-opening-brace.rs:29:5
   |
LL |     async
   |     ^^^^^
   |
   = note: see issue #62290 <https://github.com/rust-lang/rust/issues/62290> for more information
   = help: add `#![feature(async_closure)]` to the crate attributes to enable

error: aborting due to 6 previous errors

For more information about this error, try `rustc --explain E0658`.