error: use of deprecated `try` macro
  --> $DIR/try-macro-suggestion.rs:3:8
   |
LL |     Ok(try!());
   |        ^^^^^^
   |
   = note: in the 2018 edition `try` is a reserved keyword, and the `try!()` macro is deprecated
help: you can still access the deprecated `try!()` macro using the "raw identifier" syntax
   |
LL |     Ok(r#try!());
   |        ^^

error: use of deprecated `try` macro
  --> $DIR/try-macro-suggestion.rs:4:8
   |
LL |     Ok(try!(Ok(())))
   |        ^^^^^^^^^^^^
   |
   = note: in the 2018 edition `try` is a reserved keyword, and the `try!()` macro is deprecated
help: you can use the `?` operator instead
   |
LL |     Ok(Ok(())?)
   |       --     ^
help: alternatively, you can still access the deprecated `try!()` macro using the "raw identifier" syntax
   |
LL |     Ok(r#try!(Ok(())))
   |        ^^

error: aborting due to 2 previous errors