src/test/ui/consts/const-size_of-cycle.stderr

   1 error[E0391]: cycle detected when const-evaluating + checking `Foo::bytes::{{constant}}#0`
   2   --> $DIR/const-size_of-cycle.rs:4:17
   3    |
   4 LL |     bytes: [u8; std::mem::size_of::<Foo>()]
   5    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
   6    |
   7 note: ...which requires const-evaluating + checking `Foo::bytes::{{constant}}#0`...
   8   --> $DIR/const-size_of-cycle.rs:4:17
   9    |
  10 LL |     bytes: [u8; std::mem::size_of::<Foo>()]
  11    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
  12 note: ...which requires const-evaluating `Foo::bytes::{{constant}}#0`...
  13   --> $DIR/const-size_of-cycle.rs:4:17
  14    |
  15 LL |     bytes: [u8; std::mem::size_of::<Foo>()]
  16    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^
  17 note: ...which requires const-evaluating `std::mem::size_of`...
  18   --> $SRC_DIR/libcore/mem/mod.rs:LL:COL
  19    |
  20 LL | pub const fn size_of<T>() -> usize {
  21    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  22 note: ...which requires const-evaluating + checking `std::intrinsics::size_of`...
  23   --> $SRC_DIR/libcore/intrinsics.rs:LL:COL
  24    |
  25 LL |     pub fn size_of<T>() -> usize;
  26    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  27    = note: ...which requires computing layout of `Foo`...
  28    = note: ...which requires normalizing `[u8; _]`...
  29    = note: ...which again requires const-evaluating + checking `Foo::bytes::{{constant}}#0`, completing the cycle
  30 note: cycle used when checking that `Foo` is well-formed
  31   --> $DIR/const-size_of-cycle.rs:3:1
  32    |
  33 LL | struct Foo {
  34    | ^^^^^^^^^^
  35
  36 error: aborting due to previous error
  37
  38 For more information about this error, try `rustc --explain E0391`.