error: Multiple implementations of this structure
  --> $DIR/impl.rs:10:1
   |
10 | / impl MyStruct {
11 | |     fn second() {}
12 | | }
   | |_^
   |
   = note: `-D multiple-inherent-impl` implied by `-D warnings`
note: First implementation here
  --> $DIR/impl.rs:6:1
   |
6  | / impl MyStruct {
7  | |     fn first() {}
8  | | }
   | |_^

error: Multiple implementations of this structure
  --> $DIR/impl.rs:24:5
   |
24 | /     impl super::MyStruct {
25 | |         fn third() {}
26 | |     }
   | |_____^
   |
note: First implementation here
  --> $DIR/impl.rs:6:1
   |
6  | / impl MyStruct {
7  | |     fn first() {}
8  | | }
   | |_^

error: aborting due to 2 previous errors