error[E0308]: mismatched types --> $DIR/ice-6256.rs:11:28 | LL | let f = |x: &dyn TT| x.func(); //[default]~ ERROR: mismatched types | ^^^^ lifetime mismatch | = note: expected reference `&(dyn TT + 'static)` found reference `&dyn TT` note: the anonymous lifetime #1 defined on the body at 11:13... --> $DIR/ice-6256.rs:11:13 | LL | let f = |x: &dyn TT| x.func(); //[default]~ ERROR: mismatched types | ^^^^^^^^^^^^^^^^^^^^^ = note: ...does not necessarily outlive the static lifetime error: aborting due to previous error For more information about this error, try `rustc --explain E0308`.