error: functional record updates are not allowed in destructuring assignments
  --> $DIR/note-unsupported.rs:20:17
   |
LL |     S { x: a, ..s } = S { x: 3, y: 4 };
   |                 ^ help: consider removing the trailing pattern

error[E0368]: binary assignment operation `+=` cannot be applied to type `({integer}, {integer})`
  --> $DIR/note-unsupported.rs:7:5
   |
LL |     (a, b) += (3, 4);
   |     ------^^^^^^^^^^
   |     |
   |     cannot use `+=` on type `({integer}, {integer})`

error[E0067]: invalid left-hand side of assignment
  --> $DIR/note-unsupported.rs:7:12
   |
LL |     (a, b) += (3, 4);
   |     ------ ^^
   |     |
   |     cannot assign to this expression

error[E0368]: binary assignment operation `+=` cannot be applied to type `[{integer}; 2]`
  --> $DIR/note-unsupported.rs:11:5
   |
LL |     [a, b] += [3, 4];
   |     ------^^^^^^^^^^
   |     |
   |     cannot use `+=` on type `[{integer}; 2]`

error[E0067]: invalid left-hand side of assignment
  --> $DIR/note-unsupported.rs:11:12
   |
LL |     [a, b] += [3, 4];
   |     ------ ^^
   |     |
   |     cannot assign to this expression

error[E0368]: binary assignment operation `+=` cannot be applied to type `S`
  --> $DIR/note-unsupported.rs:17:5
   |
LL |     S { x: a, y: b } += s;
   |     ----------------^^^^^
   |     |
   |     cannot use `+=` on type `S`
   |
note: an implementation of `AddAssign<_>` might be missing for `S`
  --> $DIR/note-unsupported.rs:1:1
   |
LL | struct S { x: u8, y: u8 }
   | ^^^^^^^^ must implement `AddAssign<_>`
note: the following trait must be implemented
  --> $SRC_DIR/core/src/ops/arith.rs:LL:COL
   |
LL | pub trait AddAssign<Rhs = Self> {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error[E0067]: invalid left-hand side of assignment
  --> $DIR/note-unsupported.rs:17:22
   |
LL |     S { x: a, y: b } += s;
   |     ---------------- ^^
   |     |
   |     cannot assign to this expression

error: aborting due to 7 previous errors

Some errors have detailed explanations: E0067, E0368.
For more information about an error, try `rustc --explain E0067`.