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error[E0381]: used binding `z` is possibly-uninitialized
  --> $DIR/chains-without-let.rs:3:34
   |
LL |     let z;
   |         - binding declared here but left uninitialized
LL |     if true && { z = 3; true} && z == 3 {}
   |                  -----           ^ `z` used here but it is possibly-uninitialized
   |                  |
   |                  binding initialized here in some conditions

error[E0381]: used binding `z` is possibly-uninitialized
  --> $DIR/chains-without-let.rs:9:31
   |
LL |     let z;
   |         - binding declared here but left uninitialized
LL |     true && { z = 3; true} && z == 3;
   |               -----           ^ `z` used here but it is possibly-uninitialized
   |               |
   |               binding initialized here in some conditions

error[E0381]: used binding `z` is possibly-uninitialized
  --> $DIR/chains-without-let.rs:15:36
   |
LL |     let z;
   |         - binding declared here but left uninitialized
LL |     if false || { z = 3; false} || z == 3 {}
   |                   -----            ^ `z` used here but it is possibly-uninitialized
   |                   |
   |                   binding initialized here in some conditions

error: aborting due to 3 previous errors

For more information about this error, try `rustc --explain E0381`.