error[E0161]: cannot move a value of type str: the size of str cannot be statically determined --> $DIR/issue-67947.rs:2:13 | LL | A: [(); { *"" }.len()], | ^^^^^^^ error[E0507]: cannot move out of a shared reference --> $DIR/issue-67947.rs:2:15 | LL | A: [(); { *"" }.len()], | ^^^ move occurs because value has type `str`, which does not implement the `Copy` trait error: aborting due to 2 previous errors Some errors have detailed explanations: E0161, E0507. For more information about an error, try `rustc --explain E0161`.