error[E0261]: use of undeclared lifetime name `'missing`
  --> $DIR/dont-ice-on-object-lookup-w-error-region.rs:6:20
   |
LL | fn project(x: Pin<&'missing mut dyn Future<Output = ()>>) {
   |                    ^^^^^^^^ undeclared lifetime
   |
help: consider introducing lifetime `'missing` here
   |
LL | fn project<'missing>(x: Pin<&'missing mut dyn Future<Output = ()>>) {
   |           ++++++++++

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0261`.