error: lifetime in trait object type must be followed by `+` --> $DIR/trait-object-macro-matcher.rs:11:8 | LL | m!('static); | ^^^^^^^ warning: trait objects without an explicit `dyn` are deprecated --> $DIR/trait-object-macro-matcher.rs:11:8 | LL | m!('static); | ^^^^^^^ help: use `dyn`: `dyn 'static` | = note: `#[warn(bare_trait_objects)]` on by default = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! = note: for more information, see error[E0224]: at least one trait is required for an object type --> $DIR/trait-object-macro-matcher.rs:11:8 | LL | m!('static); | ^^^^^^^ error: aborting due to 2 previous errors; 1 warning emitted For more information about this error, try `rustc --explain E0224`.