error[E0381]: assigned binding `d` isn't fully initialized
  --> $DIR/issue-21232-partial-init-and-erroneous-use.rs:28:5
   |
LL |     let d: D;
   |         - binding declared here but left uninitialized
LL |     d.x = 10;
   |     ^^^^^^^^ `d` assigned here but it isn't fully initialized
   |
   = help: partial initialization isn't supported, fully initialize the binding with a default value and mutate it, or use `std::mem::MaybeUninit`

error[E0381]: assigned binding `d` isn't fully initialized
  --> $DIR/issue-21232-partial-init-and-erroneous-use.rs:33:5
   |
LL |     let mut d: D;
   |         ----- binding declared here but left uninitialized
LL |     d.x = 10;
   |     ^^^^^^^^ `d` assigned here but it isn't fully initialized
   |
   = help: partial initialization isn't supported, fully initialize the binding with a default value and mutate it, or use `std::mem::MaybeUninit`

error[E0382]: assign of moved value: `d`
  --> $DIR/issue-21232-partial-init-and-erroneous-use.rs:39:5
   |
LL |     let mut d = D { x: 0, s: S{ y: 0, z: 0 } };
   |         ----- move occurs because `d` has type `D`, which does not implement the `Copy` trait
LL |     drop(d);
   |          - value moved here
LL |     d.x = 10;
   |     ^^^^^^^^ value assigned here after move

error[E0381]: partially assigned binding `d` isn't fully initialized
  --> $DIR/issue-21232-partial-init-and-erroneous-use.rs:45:5
   |
LL |     let d: D;
   |         - binding declared here but left uninitialized
LL |     d.s.y = 20;
   |     ^^^^^^^^^^ `d.s` partially assigned here but it isn't fully initialized
   |
   = help: partial initialization isn't supported, fully initialize the binding with a default value and mutate it, or use `std::mem::MaybeUninit`

error[E0381]: partially assigned binding `d` isn't fully initialized
  --> $DIR/issue-21232-partial-init-and-erroneous-use.rs:50:5
   |
LL |     let mut d: D;
   |         ----- binding declared here but left uninitialized
LL |     d.s.y = 20;
   |     ^^^^^^^^^^ `d.s` partially assigned here but it isn't fully initialized
   |
   = help: partial initialization isn't supported, fully initialize the binding with a default value and mutate it, or use `std::mem::MaybeUninit`

error[E0382]: assign to part of moved value: `d`
  --> $DIR/issue-21232-partial-init-and-erroneous-use.rs:56:5
   |
LL |     let mut d = D { x: 0, s: S{ y: 0, z: 0} };
   |         ----- move occurs because `d` has type `D`, which does not implement the `Copy` trait
LL |     drop(d);
   |          - value moved here
LL |     d.s.y = 20;
   |     ^^^^^^^^^^ value partially assigned here after move

error: aborting due to 6 previous errors

Some errors have detailed explanations: E0381, E0382.
For more information about an error, try `rustc --explain E0381`.