warning: the feature `specialization` is incomplete and may not be safe to use and/or cause compiler crashes --> $DIR/coherence-inherited-assoc-ty-cycle-err.rs:6:12 | LL | #![feature(specialization)] | ^^^^^^^^^^^^^^ | = note: see issue #31844 for more information = help: consider using `min_specialization` instead, which is more stable and complete = note: `#[warn(incomplete_features)]` on by default error[E0391]: cycle detected when building specialization graph of trait `Trait` --> $DIR/coherence-inherited-assoc-ty-cycle-err.rs:9:1 | LL | trait Trait { type Assoc; } | ^^^^^^^^^^^^^^ | = note: ...which immediately requires building specialization graph of trait `Trait` again note: cycle used when coherence checking all impls of trait `Trait` --> $DIR/coherence-inherited-assoc-ty-cycle-err.rs:9:1 | LL | trait Trait { type Assoc; } | ^^^^^^^^^^^^^^ = note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information error: aborting due to previous error; 1 warning emitted For more information about this error, try `rustc --explain E0391`.