error[E0658]: SIMD types are experimental and possibly buggy
  --> $DIR/explicit-rust-repr-conflicts.rs:18:1
   |
LL | #[repr(Rust, simd)]
   | ^^^^^^^^^^^^^^^^^^^
   |
   = note: see issue #27731 <https://github.com/rust-lang/rust/issues/27731> for more information
   = help: add `#![feature(repr_simd)]` to the crate attributes to enable
   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date

error[E0566]: conflicting representation hints
  --> $DIR/explicit-rust-repr-conflicts.rs:1:8
   |
LL | #[repr(C, Rust)]
   |        ^  ^^^^

error[E0566]: conflicting representation hints
  --> $DIR/explicit-rust-repr-conflicts.rs:7:8
   |
LL | #[repr(Rust)]
   |        ^^^^
LL | #[repr(C)]
   |        ^

error[E0566]: conflicting representation hints
  --> $DIR/explicit-rust-repr-conflicts.rs:13:8
   |
LL | #[repr(Rust, u64)]
   |        ^^^^  ^^^

error[E0566]: conflicting representation hints
  --> $DIR/explicit-rust-repr-conflicts.rs:18:8
   |
LL | #[repr(Rust, simd)]
   |        ^^^^  ^^^^

error: aborting due to 5 previous errors

Some errors have detailed explanations: E0566, E0658.
For more information about an error, try `rustc --explain E0566`.