error: expected identifier, found keyword `let`
  --> $DIR/try-block-in-edition2015.rs:6:9
   |
LL |     let try_result: Option<_> = try {
   |                                 --- while parsing this struct
LL |     //~^ ERROR expected struct, variant or union type, found macro `try`
LL |         let x = 5; //~ ERROR expected identifier, found keyword
   |         ^^^ expected identifier, found keyword
help: you can escape reserved keywords to use them as identifiers
   |
LL |         r#let x = 5; //~ ERROR expected identifier, found keyword
   |         ^^^^^

error[E0574]: expected struct, variant or union type, found macro `try`
  --> $DIR/try-block-in-edition2015.rs:4:33
   |
LL |     let try_result: Option<_> = try {
   |                                 ^^^ help: use `!` to invoke the macro: `try!`
   |
   = note: if you want the `try` keyword, you need to be in the 2018 edition

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0574`.