src/librustc_error_codes/error_codes/E0660.md

   1 The argument to the `asm` macro is not well-formed.
   2
   3 Erroneous code example:
   4
   5 ```compile_fail,E0660
   6 asm!("nop" "nop");
   7 ```
   8
   9 Considering that this would be a long explanation, we instead recommend you to
  10 take a look at the unstable book:
  11 https://doc.rust-lang.org/unstable-book/language-features/asm.html