error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found `i`
  --> $DIR/for-loop.rs:2:10
   |
LL |     form i in 1..10 {}
   |          ^ expected one of 8 possible tokens
   |
help: there is a keyword `for` with a similar name
   |
LL |     for i in 1..10 {}
   |     ~~~

error: aborting due to 1 previous error