| error: cannot define duplicate `where` clauses on an item | 
 |   --> $DIR/duplicate-where-clauses.rs:1:32 | 
 |    | | 
 | LL | struct A where (): Sized where (): Sized {} | 
 |    |                -               ^ | 
 |    |                | | 
 |    |                previous `where` clause starts here | 
 |    | | 
 | help: consider joining the two `where` clauses into one | 
 |    | | 
 | LL - struct A where (): Sized where (): Sized {} | 
 | LL + struct A where (): Sized, (): Sized {} | 
 |    | | 
 |  | 
 | error: cannot define duplicate `where` clauses on an item | 
 |   --> $DIR/duplicate-where-clauses.rs:4:30 | 
 |    | | 
 | LL | fn b() where (): Sized where (): Sized {} | 
 |    |              -               ^ | 
 |    |              | | 
 |    |              previous `where` clause starts here | 
 |    | | 
 | help: consider joining the two `where` clauses into one | 
 |    | | 
 | LL - fn b() where (): Sized where (): Sized {} | 
 | LL + fn b() where (): Sized, (): Sized {} | 
 |    | | 
 |  | 
 | error: cannot define duplicate `where` clauses on an item | 
 |   --> $DIR/duplicate-where-clauses.rs:7:30 | 
 |    | | 
 | LL | enum C where (): Sized where (): Sized {} | 
 |    |              -               ^ | 
 |    |              | | 
 |    |              previous `where` clause starts here | 
 |    | | 
 | help: consider joining the two `where` clauses into one | 
 |    | | 
 | LL - enum C where (): Sized where (): Sized {} | 
 | LL + enum C where (): Sized, (): Sized {} | 
 |    | | 
 |  | 
 | error: cannot define duplicate `where` clauses on an item | 
 |   --> $DIR/duplicate-where-clauses.rs:10:33 | 
 |    | | 
 | LL | struct D where (): Sized, where (): Sized {} | 
 |    |                -                ^ | 
 |    |                | | 
 |    |                previous `where` clause starts here | 
 |    | | 
 | help: consider joining the two `where` clauses into one | 
 |    | | 
 | LL - struct D where (): Sized, where (): Sized {} | 
 | LL + struct D where (): Sized, (): Sized {} | 
 |    | | 
 |  | 
 | error: cannot define duplicate `where` clauses on an item | 
 |   --> $DIR/duplicate-where-clauses.rs:13:31 | 
 |    | | 
 | LL | fn e() where (): Sized, where (): Sized {} | 
 |    |              -                ^ | 
 |    |              | | 
 |    |              previous `where` clause starts here | 
 |    | | 
 | help: consider joining the two `where` clauses into one | 
 |    | | 
 | LL - fn e() where (): Sized, where (): Sized {} | 
 | LL + fn e() where (): Sized, (): Sized {} | 
 |    | | 
 |  | 
 | error: cannot define duplicate `where` clauses on an item | 
 |   --> $DIR/duplicate-where-clauses.rs:16:31 | 
 |    | | 
 | LL | enum F where (): Sized, where (): Sized {} | 
 |    |              -                ^ | 
 |    |              | | 
 |    |              previous `where` clause starts here | 
 |    | | 
 | help: consider joining the two `where` clauses into one | 
 |    | | 
 | LL - enum F where (): Sized, where (): Sized {} | 
 | LL + enum F where (): Sized, (): Sized {} | 
 |    | | 
 |  | 
 | error: aborting due to 6 previous errors | 
 |  |