error[E0070]: invalid left-hand side of assignment
  --> $DIR/issue-77218.rs:4:19
   |
LL |     while Some(0) = value.get(0) {}
   |                -  ^
   |                |
   |                cannot assign to this expression
   |
help: you might have meant to use pattern destructuring
   |
LL |     while let Some(0) = value.get(0) {}
   |           +++

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0070`.