error[E0382]: assign to part of moved value: `t`
  --> $DIR/issue-54499-field-mutation-of-moved-out-with-mut.rs:13:9
   |
LL |         let mut t: Tuple = (S(0), 0);
   |             ----- move occurs because `t` has type `(S, i32)`, which does not implement the `Copy` trait
LL |         drop(t);
   |              - value moved here
LL |         t.0 = S(1);
   |         ^^^^^^^^^^ value partially assigned here after move

error[E0382]: assign to part of moved value: `u`
  --> $DIR/issue-54499-field-mutation-of-moved-out-with-mut.rs:22:9
   |
LL |         let mut u: Tpair = Tpair(S(0), 0);
   |             ----- move occurs because `u` has type `Tpair`, which does not implement the `Copy` trait
LL |         drop(u);
   |              - value moved here
LL |         u.0 = S(1);
   |         ^^^^^^^^^^ value partially assigned here after move
   |
note: if `Tpair` implemented `Clone`, you could clone the value
  --> $DIR/issue-54499-field-mutation-of-moved-out-with-mut.rs:6:1
   |
LL | struct Tpair(S, i32);
   | ^^^^^^^^^^^^ consider implementing `Clone` for this type
...
LL |         drop(u);
   |              - you could clone this value

error[E0382]: assign to part of moved value: `v`
  --> $DIR/issue-54499-field-mutation-of-moved-out-with-mut.rs:31:9
   |
LL |         let mut v: Spair = Spair { x: S(0), y: 0 };
   |             ----- move occurs because `v` has type `Spair`, which does not implement the `Copy` trait
LL |         drop(v);
   |              - value moved here
LL |         v.x = S(1);
   |         ^^^^^^^^^^ value partially assigned here after move
   |
note: if `Spair` implemented `Clone`, you could clone the value
  --> $DIR/issue-54499-field-mutation-of-moved-out-with-mut.rs:7:1
   |
LL | struct Spair { x: S, y: i32 }
   | ^^^^^^^^^^^^ consider implementing `Clone` for this type
...
LL |         drop(v);
   |              - you could clone this value

error: aborting due to 3 previous errors

For more information about this error, try `rustc --explain E0382`.