error[E0517]: attribute should be applied to a struct, enum, or union
  --> $DIR/attr-usage-repr.rs:3:8
   |
LL | #[repr(C)]
   |        ^
LL | fn f() {}
   | --------- not a struct, enum, or union

error[E0517]: attribute should be applied to an enum
  --> $DIR/attr-usage-repr.rs:15:8
   |
LL | #[repr(i8)]
   |        ^^
LL | struct SInt(f64, f64);
   | ---------------------- not an enum

error[E0517]: attribute should be applied to a struct or union
  --> $DIR/attr-usage-repr.rs:30:8
   |
LL |   #[repr(packed)]
   |          ^^^^^^
LL | / enum EPacked {
LL | |     A,
LL | |     B,
LL | | }
   | |_- not a struct or union

error[E0517]: attribute should be applied to a struct
  --> $DIR/attr-usage-repr.rs:36:8
   |
LL |   #[repr(simd)]
   |          ^^^^
LL | / enum ESimd {
LL | |     A,
LL | |     B,
LL | | }
   | |_- not a struct

error[E0517]: attribute should be applied to a struct, enum, or union
  --> $DIR/attr-usage-repr.rs:48:1
   |
LL | #[repr()]
   | ^^^^^^^^^
LL | type SirThisIsAType = i32;
   | -------------------------- not a struct, enum, or union

error: aborting due to 5 previous errors

For more information about this error, try `rustc --explain E0517`.