tests/ui/borrowck/borrowck-union-uninitialized.stderr

   1 error[E0381]: partially assigned binding `s` isn't fully initialized
   2   --> $DIR/borrowck-union-uninitialized.rs:13:9
   3    |
   4 LL |         let mut s: S;
   5    |             ----- binding declared here but left uninitialized
   6 LL |         let mut u: U;
   7 LL |         s.a = 0;
   8    |         ^^^^^^^ `s` partially assigned here but it isn't fully initialized
   9    |
  10    = help: partial initialization isn't supported, fully initialize the binding with a default value and mutate it, or use `std::mem::MaybeUninit`
  11
  12 error[E0381]: partially assigned binding `u` isn't fully initialized
  13   --> $DIR/borrowck-union-uninitialized.rs:14:9
  14    |
  15 LL |         let mut u: U;
  16    |             ----- binding declared here but left uninitialized
  17 LL |         s.a = 0;
  18 LL |         u.a = 0;
  19    |         ^^^^^^^ `u` partially assigned here but it isn't fully initialized
  20    |
  21    = help: partial initialization isn't supported, fully initialize the binding with a default value and mutate it, or use `std::mem::MaybeUninit`
  22
  23 error: aborting due to 2 previous errors
  24
  25 For more information about this error, try `rustc --explain E0381`.