1error: expected one of `->`, `;`, `where`, or `{`, found `}`
2  --> $DIR/issue-6610.rs:1:20
3   |
4LL | trait Foo { fn a() }
5   |                -   ^ expected one of `->`, `;`, `where`, or `{`
6   |                |
7   |                while parsing this `fn`
8
9error: aborting due to previous error
10
11