error: macro definition ended unexpectedly
  --> $DIR/macro-attr-bad.rs:4:38
   |
LL | macro_rules! attr_incomplete_1 { attr }
   |                                      ^ expected macro attr args

error: macro definition ended unexpectedly
  --> $DIR/macro-attr-bad.rs:7:40
   |
LL | macro_rules! attr_incomplete_2 { attr() }
   |                                        ^ expected macro attr body

error: expected `=>`, found end of macro arguments
  --> $DIR/macro-attr-bad.rs:10:43
   |
LL | macro_rules! attr_incomplete_3 { attr() {} }
   |                                           ^ expected `=>`

error: macro definition ended unexpectedly
  --> $DIR/macro-attr-bad.rs:13:46
   |
LL | macro_rules! attr_incomplete_4 { attr() {} => }
   |                                              ^ expected right-hand side of macro rule

error: `attr` rule argument matchers require parentheses
  --> $DIR/macro-attr-bad.rs:16:36
   |
LL | macro_rules! attr_noparens_1 { attr{} {} => {} }
   |                                    ^^
   |
help: the delimiters should be `(` and `)`
   |
LL - macro_rules! attr_noparens_1 { attr{} {} => {} }
LL + macro_rules! attr_noparens_1 { attr() {} => {} }
   |

error: `attr` rule argument matchers require parentheses
  --> $DIR/macro-attr-bad.rs:19:36
   |
LL | macro_rules! attr_noparens_2 { attr[] {} => {} }
   |                                    ^^
   |
help: the delimiters should be `(` and `)`
   |
LL - macro_rules! attr_noparens_2 { attr[] {} => {} }
LL + macro_rules! attr_noparens_2 { attr() {} => {} }
   |

error: invalid macro matcher; matchers must be contained in balanced delimiters
  --> $DIR/macro-attr-bad.rs:22:37
   |
LL | macro_rules! attr_noparens_3 { attr _ {} => {} }
   |                                     ^

error: duplicate matcher binding
  --> $DIR/macro-attr-bad.rs:25:52
   |
LL | macro_rules! attr_dup_matcher_1 { attr() {$x:ident $x:ident} => {} }
   |                                           -------- ^^^^^^^^ duplicate binding
   |                                           |
   |                                           previous binding

error: duplicate matcher binding
  --> $DIR/macro-attr-bad.rs:28:49
   |
LL | macro_rules! attr_dup_matcher_2 { attr($x:ident $x:ident) {} => {} }
   |                                        -------- ^^^^^^^^ duplicate binding
   |                                        |
   |                                        previous binding

error: duplicate matcher binding
  --> $DIR/macro-attr-bad.rs:31:51
   |
LL | macro_rules! attr_dup_matcher_3 { attr($x:ident) {$x:ident} => {} }
   |                                        --------   ^^^^^^^^ duplicate binding
   |                                        |
   |                                        previous binding

error: aborting due to 10 previous errors