error[E0277]: can't compare `TypeId` with `TypeId` in const contexts --> $DIR/issue-73976-monomorphic.rs:21:5 | LL | GetTypeId::::VALUE == GetTypeId::::VALUE | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no implementation for `TypeId == TypeId` | = help: the trait `~const PartialEq` is not implemented for `TypeId` note: the trait `PartialEq` is implemented for `TypeId`, but that implementation is not `const` --> $DIR/issue-73976-monomorphic.rs:21:5 | LL | GetTypeId::::VALUE == GetTypeId::::VALUE | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error[E0015]: cannot call non-const operator in constant functions --> $DIR/issue-73976-monomorphic.rs:21:5 | LL | GetTypeId::::VALUE == GetTypeId::::VALUE | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | note: impl defined here, but it is not `const` --> $SRC_DIR/core/src/any.rs:LL:COL = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants = note: this error originates in the derive macro `PartialEq` (in Nightly builds, run with -Z macro-backtrace for more info) error: aborting due to 2 previous errors Some errors have detailed explanations: E0015, E0277. For more information about an error, try `rustc --explain E0015`.