error: internal compiler error: no errors encountered even though `span_delayed_bug` issued error: internal compiler error: {OpaqueTypeKey { def_id: DefId(rpit::{opaque#0}), args: [] }: OpaqueTypeDecl { hidden_type: OpaqueHiddenType { span: no-location (#0), ty: Alias(Opaque, AliasTy { args: [], def_id: DefId(foo::{opaque#0}) }) } }} | = error: internal compiler error: error performing ParamEnvAnd { param_env: ParamEnv { caller_bounds: [], reveal: UserFacing }, value: ProvePredicate { predicate: Binder { value: ProjectionPredicate(AliasTy { args: [FnDef(DefId(rpit), []), ()], def_id: DefId(ops::function::FnOnce::Output) }, Term::Ty(Alias(Opaque, AliasTy { args: [], def_id: DefId(foo::{opaque#0}) }))), bound_vars: [] } } } --> $DIR/equality-in-canonical-query.rs:19:5 | LL | same_output(foo, rpit); | ^^^^^^^^^^^^^^^^^^^^^^ | --> $DIR/equality-in-canonical-query.rs:19:5 | LL | same_output(foo, rpit); | ^^^^^^^^^^^^^^^^^^^^^^ query stack during panic: end of query stack error: aborting due to 3 previous errors