error[E0412]: cannot find type `Foo` in this scope --> $DIR/issue-83510.rs:5:1 | LL | issue_83510::dance_like_you_want_to_ice!(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not found in this scope | = note: this error originates in the macro `issue_83510::dance_like_you_want_to_ice` (in Nightly builds, run with -Z macro-backtrace for more info) error[E0404]: expected trait, found struct `Box` --> $DIR/issue-83510.rs:5:1 | LL | issue_83510::dance_like_you_want_to_ice!(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not a trait | = note: this error originates in the macro `issue_83510::dance_like_you_want_to_ice` (in Nightly builds, run with -Z macro-backtrace for more info) error[E0405]: cannot find trait `Baz` in this scope --> $DIR/issue-83510.rs:5:1 | LL | issue_83510::dance_like_you_want_to_ice!(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not found in this scope | = note: this error originates in the macro `issue_83510::dance_like_you_want_to_ice` (in Nightly builds, run with -Z macro-backtrace for more info) error[E0658]: inherent associated types are unstable --> $DIR/issue-83510.rs:5:1 | LL | issue_83510::dance_like_you_want_to_ice!(); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: see issue #8995 for more information = help: add `#![feature(inherent_associated_types)]` to the crate attributes to enable = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date = note: this error originates in the macro `issue_83510::dance_like_you_want_to_ice` (in Nightly builds, run with -Z macro-backtrace for more info) error: aborting due to 4 previous errors Some errors have detailed explanations: E0404, E0405, E0412, E0658. For more information about an error, try `rustc --explain E0404`.