error: macros that expand to items must be delimited with braces or followed by a semicolon
  --> $DIR/issue-10536.rs:14:22
   |
LL |     assert!({one! two()});
   |                      ^^
help: change the delimiters to curly braces
   |
LL |     assert!({one! two {}});
   |                       ^^
help: add a semicolon
   |
LL |     assert!({one! two();});
   |                        ^

error: expected `(` or `{`, found `}`
  --> $DIR/issue-10536.rs:21:22
   |
LL |     assert!({one! two});
   |                      ^ expected `(` or `{`

error: cannot find macro `one!` in this scope
  --> $DIR/issue-10536.rs:14:14
   |
LL |     assert!({one! two()});
   |              ^^^

error[E0308]: mismatched types
  --> $DIR/issue-10536.rs:14:13
   |
LL |     assert!({one! two()});
   |             ^^^^^^^^^^^^ expected bool, found ()
   |
   = note: expected type `bool`
              found type `()`

error: aborting due to 4 previous errors

For more information about this error, try `rustc --explain E0308`.