error[E0277]: the trait bound `[u8; 1]: Test` is not satisfied --> $DIR/issue-90528-unsizing-not-suggestion-110063.rs:9:18 | LL | needs_test::<[u8; 1]>(); | ^^^^^^^ the trait `Test` is not implemented for `[u8; 1]` | = help: the trait `Test` is implemented for `&[u8]` note: required by a bound in `needs_test` --> $DIR/issue-90528-unsizing-not-suggestion-110063.rs:4:18 | LL | fn needs_test() -> T { | ^^^^ required by this bound in `needs_test` error[E0277]: the trait bound `[u8; 1]: Test` is not satisfied --> $DIR/issue-90528-unsizing-not-suggestion-110063.rs:11:22 | LL | let x: [u8; 1] = needs_test(); | ^^^^^^^^^^ the trait `Test` is not implemented for `[u8; 1]` | = help: the trait `Test` is implemented for `&[u8]` note: required by a bound in `needs_test` --> $DIR/issue-90528-unsizing-not-suggestion-110063.rs:4:18 | LL | fn needs_test() -> T { | ^^^^ required by this bound in `needs_test` error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0277`.