1 error: expected parameter name, found `)`
2 --> $DIR/attr-without-param.rs:3:17
5 | ^ expected parameter name
7 error: expected parameter name, found `)`
8 --> $DIR/attr-without-param.rs:8:17
11 | ^ expected parameter name
13 error: expected argument name, found `)`
14 --> $DIR/attr-without-param.rs:13:17
17 | ^ expected argument name
19 error: aborting due to 3 previous errors