warning: the feature `non_lifetime_binders` is incomplete and may not be safe to use and/or cause compiler crashes --> $DIR/bad-copy-cond.rs:1:12 | LL | #![feature(non_lifetime_binders)] | ^^^^^^^^^^^^^^^^^^^^ | = note: see issue #108185 for more information = note: `#[warn(incomplete_features)]` on by default error[E0277]: the trait bound `T: Copy` is not satisfied --> $DIR/bad-copy-cond.rs:7:5 | LL | foo(); | ^^^ the trait `Copy` is not implemented for `T` | note: required by a bound in `foo` --> $DIR/bad-copy-cond.rs:4:26 | LL | fn foo() where for T: Copy {} | ^^^^ required by this bound in `foo` error: aborting due to previous error; 1 warning emitted For more information about this error, try `rustc --explain E0277`.